Polyamide (e.g., Nylon, Etc.) Or Addition Polymer Of At Least One Monoethylenically Unsaturated Monomer (e.g., Polyethylene, Polypropylene, Polystyrene, Etc.) Containing Layer Patents (Class 264/173.19)
  • Publication number: 20110089600
    Abstract: Disclosed are multicomponent fibers derived from a blend of a sulfopolyester with a water non-dispersible polymer wherein the as-spun denier is less than about 6 and wherein the water dispersible sulfopolyester exhibits a melt viscosity of less than 12,000 poise measured at 240° C. at a strain rate of 1 rad/sec, and wherein the sulfopolyester comprising less than about 25 mole % of residues of at least one sulfomonomer, based on the total moles of diacid or diol residues. The multicomponent fiber is capable of being drawn at a relatively high fiber speed, particularly at least about 2000 m/min, and may be used to produce microdenier fibers. Fibrous articles may be produced from the multicomponent fibers and microdenier fibers. Also disclosed is a process for multicomponent fibers, nonwoven fabrics, and microdenier webs.
    Type: Application
    Filed: December 22, 2010
    Publication date: April 21, 2011
    Applicant: EASTMAN CHEMICAL COMPANY
    Inventors: Rakesh Kumar Gupta, Scott Ellery George, Daniel William Klosiewicz, Kab Sik Seo, Coralie McKenna Fleenor, Allen Lynn Crain
  • Publication number: 20110083796
    Abstract: A multilayer film is provided which has a core layer, a matte tie layer, and a sealant skin layer. The matte tie layer is intermediate the core and sealant skin layers and includes a first polymer component and a second polymer component. The multilayer film has a surface roughness (Ra) of at least 0.25 ?m and a peak count (Pc) of at least 30 as measured by surface profilometry, and a seal of the sealant layer to itself has a seal strength of greater than about 1400 g/2.54 cm at 127° C. The multilayer film may be oriented in at least one direction and may be metallized, coated, printed, and/or laminated. The multilayer film may be usefully in packaging applications.
    Type: Application
    Filed: June 3, 2009
    Publication date: April 14, 2011
    Inventors: Robert M. Sheppard, Eric W. Bender
  • Publication number: 20110061796
    Abstract: A co-extrusion process enhances the durability of the ultimate product over previous systems which use relatively fragile paint coatings to limit heat absorption. By providing near-IR transmissive and reflective pigments within the co-extruded polymers, a highly durable finished product is obtained. The co-extruded layers are disclosed for use in fence and deck applications, but will also find application in a wide variety of building product applications, both exterior and interior.
    Type: Application
    Filed: November 22, 2010
    Publication date: March 17, 2011
    Inventors: MING-LIANG SHIAO, Joong-Youn Kim
  • Publication number: 20110052930
    Abstract: The present disclosure is directed to a thermoforming process and thermoformed articles produced therefrom. The thermoforming process includes heating a structure with a gloss layer composed of a propylene-based polymer having a melt flow rate from about 0.1 g/10 min to about 1.5 g/10 min, and producing a thermoformed article wherein the gloss layer has a post-thermoformed Gardner gloss value within 25% of the pre-thermoformed Gardner gloss value for the gloss layer. The thermoformed article may have a gloss layer with a post-thermoformed Gardner gloss value greater than or equal to about 60.
    Type: Application
    Filed: August 23, 2010
    Publication date: March 3, 2011
    Inventors: Jinder Jow, Michael S. Broadway, Malcolm F. Finlayson, Todd A. Hogan, Drew A. Davidock, Angel S. Mendez
  • Patent number: 7882671
    Abstract: A multi-layer roofing membrane is provided including a top sheet including a co-extruded cap and inner layer and a bottom sheet. The use of a co-extrusion die allows for multi-layer sheets that reduce the need for expensive fillers in all but a cap layer of the membrane. A scrim reinforcement layer is optionally embedded in the membrane. When installed on a roof substrate, the membrane can be sealed by heat welding the seams of the membrane sheets or by other means.
    Type: Grant
    Filed: February 21, 2007
    Date of Patent: February 8, 2011
    Inventors: Douglas Bruce, Greg Sharrun, Richard Peng
  • Publication number: 20110009844
    Abstract: Release sheet materials for use as packaging material for individually packaged disposable absorbent articles, typically sanitary napkins and the like.
    Type: Application
    Filed: May 27, 2010
    Publication date: January 13, 2011
    Inventors: Carlo Toro, Fiorello Salone, Enzo Pompei
  • Patent number: 7858016
    Abstract: Layer made of base plastic comprising, in the dispersed form, nodules with a diameter of less than or equal to one micron comprising barrier plastic incompatible with the base plastic; multilayer structure comprising at least one such layer and process for the manufacture of such layers/structures.
    Type: Grant
    Filed: February 21, 2005
    Date of Patent: December 28, 2010
    Assignee: Inergy Automotive Systems Research (Societe Anonyme)
    Inventors: Jules-Joseph Van Schaftingen, Serge Dupont, Barbara Mabed
  • Publication number: 20100304062
    Abstract: The present invention provides a uniaxially oriented multilayer film comprising at least (i) a layer (A) and (ii) a layer (B), wherein said layer (A) comprises a linear low density polyethylene (LLDPE) comprising (e.g. selected from):—a multimodal LLDPE produced using a Ziegler Natta catalyst (znLLDPE), or—a LLDPE produced using a single site catalyst (mLLDPE) or—a mixture of a mLLDPE and a multimodal znLLDPE, said layer (B) comprises a multimodal LLDPE, and said multilayer film is in the form of a stretched film which is uniaxially oriented in the machine direction (MD) in a draw ratio of at least 1:3.
    Type: Application
    Filed: December 19, 2007
    Publication date: December 2, 2010
    Inventors: Hans Georg Daviknes, Ole Jan Myhre
  • Publication number: 20100291396
    Abstract: The invention relates to a heat-sealable coextruded, biaxially oriented polyester film which is peelable with respect to nonpolar substrates, for example PS and PP, and which encompasses a base layer (B) and an outer layer (A), in which a) the base layer (B) is mainly formed from a copolyester containing ethylene terephthalate units and ethylene isophthalate units, where the proportion of ethylene isophthalate units in the copolyester is from 3 to 15 mol %, and b) the outer layer (A) is formed from 30 to 95% by weight of ethylene-polar-ethylene copolymer and 5 to 70% by weight of polyester, where the proportion of polar-ethylene in the copolymer is from 2.5 to 15 mol %. The outer layer (A) polyester preferably includes an ethylene-terephthalate-ethylene-isophthalate copolyester. The film is particularly suitable as peelable film (lid film) for food or drink containers.
    Type: Application
    Filed: May 12, 2010
    Publication date: November 18, 2010
    Inventors: Herbert Peiffer, Bodo Kuhmann
  • Patent number: 7833450
    Abstract: The present invention relates to the use of a microcrystalline polyamide for obtaining an object having all or part of its outer surface formed from this microcrystalline polyamide and having a particular surface finish, in which: the manufacture of the object comprises steps carried out hot between the Tg (glass transition temperature) and the Tm (melting point) of this microcrystalline polyamide; the transparency of the microcrystalline polyamide is such that the light transmission at 560 nm on a polished object 1 mm in thickness is greater than 80%, advantageously greater than 88%, the transparency being measured on the object obtained by standard processing methods, such as injection moulding and sheet extrusion/calendering.
    Type: Grant
    Filed: June 22, 2005
    Date of Patent: November 16, 2010
    Assignee: Arkema France
    Inventors: Thibaut Montanari, Christelle Recoquille
  • Publication number: 20100269455
    Abstract: The invention is directed to a composition suitable for use in a single-sided stretch cling film, the composition having from 0.1 to 20 percent by weight of a propylene-based copolymer having substantially isotactic propylene sequences, and having from 80 to 99 percent by weight of an ethylene-based copolymer having a density of at least 0.905 g/cc, wherein a film made from the composition exhibits cling layer to release layer cling of at least 70 grams force per inch as measured by ASTM D-5458-95, noise levels of less than 87 dB during unwinding operations, and has a modulus of at least 3 MPA as determined by ASTM D-882.
    Type: Application
    Filed: May 24, 2010
    Publication date: October 28, 2010
    Inventors: Shaun Parkinson, Jesus Nieto, Andreas Mayer, Pascal E.R.E.J. Lakeman
  • Publication number: 20100267914
    Abstract: Temperature resistant multilayer composites, methods for making same, and articles made therefrom. The method can include extruding one or more polyolefin polymers having a MFR from less than 90 dg/min through at least one die having a plurality of nozzles to form a plurality of continuous fibers, at least one die operating at a melt pressure from greater than 500 psi (3447 kPa) to form at least one elastic meltblown layer; adhering the at least one elastic meltblown layer to at least one extensible layer to form a multilayer composite; and at least partially crosslinking the elastic meltblown layer or the extensible layer or both.
    Type: Application
    Filed: March 12, 2010
    Publication date: October 21, 2010
    Inventors: Alistair Duncan Westwood, Michael Glenn Williams, Galen Charles Richeson
  • Patent number: 7799873
    Abstract: A thermoplastic elastomer composition containing (i) a thermoplastic resin, (ii) an elastomer component discontinuously dispersed in the thermoplastic resin and (iii) a molecular chain extender, wherein the dispersed state of the particles of the elastomer component dispersed in the matrix of the thermoplastic elastomer composition is stabilized.
    Type: Grant
    Filed: May 2, 2006
    Date of Patent: September 21, 2010
    Assignee: The Yokohama Rubber Co., Ltd.
    Inventor: Yoshihiro Soeda
  • Publication number: 20100178477
    Abstract: The invention is directed to stretched polyolefin materials having an E-modulus of at least 17 GPa, preferably at least 20 GPa and a strength of at least 400 MPa, comprising a polyolefin and a nano-material, such as a nucleating agent, which material is obtainable by a process comprising a stretching step wherein the material is stretched at a stretch ratio of at least 16. The materials of the invention can be produced by a process comprising the steps of: providing a compound of a polyolefin material and a nano-material, e.g. a nucleating agent, wherein the nano-material is dispersed preferably on a molecular scale in the polyolefin material, extruding this compound, followed by a stretching step wherein the material is stretched to a total stretch ratio of at least 16.
    Type: Application
    Filed: February 5, 2008
    Publication date: July 15, 2010
    Inventor: Johannes Antonius Joseph Jacobs
  • Patent number: 7754340
    Abstract: A multilayer film is provided, wherein the multilayer film comprises at least one layer of a monolayer film, wherein the monolayer film is produced from a composition comprising a masterbatch composition and at least one polyolefin polymer, wherein the masterbatch composition comprises a polyolefin base resin, polymethyl-methacrylate (PMMA) pearls and a terpolymer of an olefin, an olefinic ester and an olefinic ether, and wherein the PMMA particles have an average particle size of 1-20 ?m. Also provided are methods for producing such multilayer films, and use of such multilayer films as a packaging material.
    Type: Grant
    Filed: March 28, 2008
    Date of Patent: July 13, 2010
    Assignee: A. Schulman Plastics
    Inventors: Marcel Janssens, Tony Daponte
  • Publication number: 20100159213
    Abstract: An extruded composite adapted for use as a building material includes a core having a base polymer and a natural fiber in a substantially homogeneous mixture and an ionomer capstock. To improve adherence of the ionomer to a base polymer, the ionomer can be mixed with a similar or substantially similar base polymer prior to coextrusion with the core. Additionally, various additives may be mixed with the capstock material to improve visual aesthetics of the product and performance of the building material, especially over time.
    Type: Application
    Filed: December 21, 2009
    Publication date: June 24, 2010
    Inventors: James P. Przybylinski, Douglas Mancosh
  • Patent number: 7740943
    Abstract: In a molded composite article formed by directly bonding a resin member comprising a polyamide-series resin to a resin member comprising a thermoplastic polyurethane-series resin, the polyamide-series resin comprises a polyamide block copolymer containing (A) a polyether segment having at least one terminal imino group. The polyamide-series resin may comprise a polyamide-series resin having a free amino group in a concentration of not less than about 10 mmol/kg. The molded composite article is producible, for example, by heating at least one of the polyamide-series resin and the thermoplastic polyurethane-series resin to bond the former to the latter. Thus obtained molded composite article is suitable for a member of a shoe and an industrial roll. In such a process, the polyamide-series resin member and the thermoplastic polyurethane-series resin member both of which are different in nature from each other can be directly and firmly bonded together.
    Type: Grant
    Filed: May 1, 2005
    Date of Patent: June 22, 2010
    Assignee: Daicel-Evonik Ltd.
    Inventors: Mitsuteru Mutsuda, Hiroaki Arita, Hajime Komada, Toru Ikuta
  • Patent number: 7678444
    Abstract: The present invention provides articles comprising a thermoformable composite comprising: a core comprising a renewable polymer having: (a) a Ts value of up to about 90° C.; and (b) a heat distortion index of up to about 90° C.; and a heat-resistant outer layer substantially surrounding the core and comprising a heat-resistant polymer having: (a) a Ts of greater than about 60° C.; and (b) a heat distortion index of greater than about 50° C.; wherein the renewable polymer comprises at least about 60% by weight of the composite, and wherein the heat-resistant polymer has a Ts value and heat distortion index greater than that of the renewable polymer. The present invention also provides methods for coextruding the heat-resistant polymer outer layer and renewable polymer core to provide a thermoformable composite.
    Type: Grant
    Filed: December 17, 2007
    Date of Patent: March 16, 2010
    Assignee: International Paper Company
    Inventors: Richard A. Tedford, Jr., Wei Li
  • Patent number: 7674421
    Abstract: A guide catheter shaft is formed from an inner tube structure and a multilayer sheath around the inner tube structure. The multilayer sheath includes an intermediate sheath and a shrink tube layer. The intermediate sheath is disposed around the inner tube and realized from a melt-processible first polyether-block amide material. The shrink tube layer is disposed around the intermediate sheath and realized from a different second polyether-block amide (e.g. a cross-linked polyether-block amide material) having a shrink temperature range greater than a melt temperature range of the first polyether-block amide material. The resulting structure is heated at a temperature within the shrink temperature range such that the outer shrink tube layer shrinks and the intermediate layer melts to thereby bond the multilayer sheath to the inner tube.
    Type: Grant
    Filed: December 11, 2007
    Date of Patent: March 9, 2010
    Assignee: Engineering Resources Group, Inc.
    Inventor: Christopher Daniel Ross
  • Patent number: 7651648
    Abstract: Methods of making articles are described comprising the steps of applying a capstock material over a layer of a substrate material and then calendaring said capstock material and said substrate material with calendaring rolls to form an article, wherein said capstock material contacts said calendar rolls for a shorter period of time than said substrate material. The capstock material comprises a melt-processable thermoplastic composition comprising a) 50-99.5 wt. % of a melt-processable thermoplastic polymer and b) 0.5-50 wt. % of a particulate polymer comprising the residues of a monomer mixture comprising 50-100 wt. % of MMA, at least 0-50 % of an ethylenically unsaturated comonomer comprising at least one alkyl acrylate or methacrylate and 0-10 wt. % of a copolymerisable cross-linking monomer said particles having a maximum dimension of 5 mm.
    Type: Grant
    Filed: December 9, 2008
    Date of Patent: January 26, 2010
    Assignee: Lucile International UK Limited
    Inventors: Paul Eustace, Nicholas John Maston, John Robert Oliver
  • Publication number: 20090324940
    Abstract: The invention relates to the self-adhesive material of hydrogenated block copolymers or a mixture thereof, comprising polymer blocks of vinyl aromatics (A-blocks) and such made by polymerization of 1.3 dienes (B-blocks), wherein the self-adhesive material is mixed with 25 to 100 parts per weight of polyisobutylene with an average molecular weight Mw>200 000 g/mol, 3 to 40 phr (per hundred rubber=in relation to the blockcopolymeres) adhesive resin and 0.1 to 5 phr light protecting agent in relation to 100 parts per weight of the blockcopolymeres.
    Type: Application
    Filed: August 3, 2007
    Publication date: December 31, 2009
    Applicant: TESA AG
    Inventors: Nicolai Böhm, Michael Janning, Andreas Hagemann, Domenico Boccuto
  • Publication number: 20090324884
    Abstract: The present invention provides a polyamide based mixed resin laminated film roll formed by winding up a polyamide based mixed resin laminated film comprising a plurality of polyamide mixed resin sheets stacked on top of each other. A first sample cutout portion is provided within 2 m from the winding end of film, and a final sample cutout portion is provided within 2 m from the winding start of film. The roll is regulated so that, when sample cutout portions are provided at intervals of about 100 m from the first sample cutout portion, for all samples cutout from the cutout portions, the elastomer content, tensile modulus of elasticity, thickness unevenness in the longitudinal direction and other properties fall within a predetermined variation range.
    Type: Application
    Filed: December 22, 2005
    Publication date: December 31, 2009
    Applicant: Toyo Boseki Kabushiki Kaisha
    Inventors: Tadashi Nishi, Yoshinori Miyaguchi, Naonobu Oda, Katsuhiko Nose
  • Publication number: 20090305037
    Abstract: The present invention provides a conjugate fiber having excellent elastic extensibility and transparency. The present invention relates to a highly elastic conjugate fiber comprising an elastomeric resin (A) having elastic extensibility; and an elastomeric resin (B) having elastic extensibility, permanent elongation of 25 to 70% and a tensile elongation of 100 to 800%; a core comprising the elastomeric resin (A), and a sheath comprising the elastomeric resin (B).
    Type: Application
    Filed: September 14, 2006
    Publication date: December 10, 2009
    Applicant: GUNZE LIMITED
    Inventors: Shoichi Tsukada, Hirofumi Yanagizawa
  • Publication number: 20090280282
    Abstract: Multilayer structure comprising at least one couple (L1-L2) of adjacent layers (L1) and (L2), wherein: the layer (L1) comprises at least one polymer composition (C1) comprising: (i) at least one semi-aromatic polyamide, and (ii) at least one impact modifier (I1); the layer (L2) comprises at least one polymer composition (C2) comprising: (i) at least one un-functionalized polyolefin (PO2); (ii) at least one functionalized polyolefin (FPO2), the functionalized polyolefin comprising functional groups chosen from carboxylic groups, their esters, their anhydrides and their salts. Process for manufacturing such multilayer structure, which comprises co-extruding or co-blowmolding polymer compositions (C1) and (C2) so as to obtain one couple (L1-L2) of adjacent layers (L1) and (L2). Shaped article comprising such multilayer structure and process for manufacturing the shaped article.
    Type: Application
    Filed: April 13, 2007
    Publication date: November 12, 2009
    Applicant: SOLVAY ADVANCED POLYMERS, L.L.C.
    Inventors: James K. Doty, Alice Weimin Liu, Gregory Warkoski, Jean De Canniere
  • Publication number: 20090191369
    Abstract: The polyamide based resin laminated film roll of the present invention has physical properties such as boiling water shrinkage percentage, surface roughness, refractive index in the thickness direction, etc., adjusted to achieve a predetermined range of degree of variability, when the polyamide based resin laminated film has a first sample cutout portion set up within 2 m from the winding end of film and final cutout portion within 2 m from the winding start of film, and at the same time, has a sample cutout portion set up at approximately every 100 m from the first sample cutout portion.
    Type: Application
    Filed: December 21, 2005
    Publication date: July 30, 2009
    Applicant: TOYO BOSEKI KABUSHIKI KAISHA
    Inventors: Tadashi Nishi, Yoshinori Miyaguchi, Naonobu Oda, Katsuhiko Nose
  • Publication number: 20090174109
    Abstract: The invention relates to composite material containing a proportion of wood and a proportion of crosslinked melamine resins, which is characterized in that the crosslinked melamine resins are formed from melamine resins that are, in essence, linearly synthesized and have a shear-dependent viscosity. The invention also relates to a method for producing the composite materials and to the use thereof.
    Type: Application
    Filed: June 19, 2006
    Publication date: July 9, 2009
    Inventors: Manfred Ratzsch, Andreas Endesfelder, Uwe Muller, Andreas Haider, Huong Lan Nguyen, Melanie Steiner
  • Publication number: 20090148713
    Abstract: A metallized laminate film exhibiting improved moisture barrier property as well as maintaining a high bio-polymer content and degradability property is disclosed. The laminate film includes a first core layer of polylactic acid polymer and a second skin layer comprising a polyolefin metal receiving layer. The metal receiving layer or the core layer, or both, may be blended with an amount of polar-modified tie-resin to improve bonding. Alternatively, a discrete tie-resin layer may be interposed between the polyolefin metal receiving layer and the crystalline polylactic acid polymer core layer. The polyolefin metal receiving layer may be discharge-treated on the side opposite the core layer and metallized.
    Type: Application
    Filed: December 10, 2008
    Publication date: June 11, 2009
    Applicant: TORAY PLASTICS (AMERICA), INC.
    Inventors: Mark S. Lee, Keunsuk P. Chang
  • Publication number: 20090134538
    Abstract: A multi-layer, microporous polyolefin membrane comprising a polypropylene layer and a polyethylene resin layer and having well-balanced permeability, mechanical strength, heat shrinkage resistance, shutdown properties and meltdown properties can be obtained by (1) forming a sheet comprising a gel-like polypropylene layer containing a membrane-forming solvent or a polypropylene layer containing no membrane-forming solvent and a gel-like polyethylene resin layer containing a membrane-forming solvent, stretching the sheet at two-stage temperatures, and then removing the membrane-forming solvent, or (2) forming a gel-like polypropylene sheet containing a membrane-forming solvent or a polypropylene sheet containing no membrane-forming solvent, and a gel-like polyethylene resin sheet containing a membrane-forming solvent, stretching them at two-stage temperatures, removing the membrane-forming solvent, and then laminating the resultant microporous polypropylene membrane and the resultant microporous polyethylene me
    Type: Application
    Filed: October 19, 2006
    Publication date: May 28, 2009
    Applicant: TONEN CHEMICAL CORPORATION
    Inventors: Kotaro Takita, Shintaro Kikuchi
  • Publication number: 20090110944
    Abstract: It has been discovered that the properties of sheet or film materials of broad molecular weight distribution ethylene/propylene rubber impact-modified heterophasic copolymer (ICP) can be improved by blending the ICP with a second polyolefin. The second polyolefin may be a syndiotactic polypropylene (sPP), a random copolymer (RCP) of propylene and comonomer (e.g. ethylene and/or butene) made using a Ziegler-Natta or metallocene catalyst, medium density polyethylene (MDPE), linear low density polyethylene (LLDPE), or low crystalline copolymer of propylene/?-olefin. Improvements include, but are not necessarily limited to, reduced motor amps, lower secant modulus, increased dart drop strength, increased gloss, reduced haze, increased elongation to yield, elimination of stress whitening, improved puncture resistance, and decreased seal initiation temperature. This sheet of film materials may be co-extruded with other resins or laminated with other materials after extrusion.
    Type: Application
    Filed: October 7, 2008
    Publication date: April 30, 2009
    Applicant: FINA TECHNOLOGY, INC.
    Inventors: Juan Jose Aguirre, Mike McLeod, Rodolfo Mier, Nguong van Nguyen
  • Patent number: 7524447
    Abstract: One method for making a laminate material comprising a first surface layer comprising resorcinol arylate polyester chain members and a second surface layer suitable for bonding to a substrate, comprises co-extruding a polymeric first surface layer material and a polymeric second surface layer material through a die and into the first nip of a calender roll stack comprising a first surface roll and a second surface roll that define the first nip, to form the laminate material. A nip load in the first nip of greater than or equal to about 400 N/cm can be applied to the laminate, and the laminate material can be collected from the roll stack. The first roll and the second roll can each have a surface smoothness of less than or equal to about 5 micrometers and temperatures of about 40° C. to about 150° C.
    Type: Grant
    Filed: July 20, 2004
    Date of Patent: April 28, 2009
    Assignee: Sabic Innovative Plastics IP B.V.
    Inventors: Himanshu Asthana, M. Shoen Davis, Hari K. Harikumar, Martin J. Lindway, Aniruddha Moitra, Chetan J. Parikh, Om Prakash, Michael T. Roland, Robert A. Schiff, Robert W. Walker, Georgios S. Zafiris
  • Publication number: 20080261050
    Abstract: The invention relates to a multi-layer film having at least one fluoropolymer layer, useful for high-purity contact applications. Preferably the fluoropolymer layer(s) are polyvinylidene fluoride polymers and copolymers.
    Type: Application
    Filed: December 20, 2006
    Publication date: October 23, 2008
    Applicant: Arkema Inc.
    Inventors: William Hartzel, Saeid Zerafati, Gregory S. O'Brien
  • Patent number: 7427430
    Abstract: High gas barrier, delamination-resistant polyamide compositions suitable for extended shelf-life packaging applications are provided. Also provided are polyamide compositions exhibiting high oxygen scavenging capability. The polyamide compositions comprise mXDA-IPA containing copolymers which provide excellent properties to the complete polyamide compositions. Also provided are direct blends of the polyamide compositions with other polymers. The polyamide products are particularly suited for producing barrier packaging articles such as monolayer or multi-layer films, sheets, thermoformed containers and molded bottles. Such articles are useful in a variety of oxygen-sensitive food, beverage, pharmaceutical, and health care product packaging applications.
    Type: Grant
    Filed: December 29, 2005
    Date of Patent: September 23, 2008
    Assignee: Honeywell International Inc.
    Inventors: Sangkeun Rhee, Edward P. Socci, Clark V. Brown, John V. Facinelli
  • Publication number: 20080220192
    Abstract: Multilayer shaped articles, including films, preforms and containers, and method for forming the same, having at least one layer of poly(l, 3-propylene 2,6-naphthalate) and at least one layer of poly(ethylene terephthalate). Poly(1,3-propylene 2,6-naphthalate) can be co-stretched with poly(ethylene terephthalate) to form oriented multilayer structures which have superior barrier properties. The poly(l,3-propylene 2,6-naphthalate) and poly(ethylene terephthalate) layers have good adhesion and do not require an adhesive tie layer.
    Type: Application
    Filed: December 3, 2007
    Publication date: September 11, 2008
    Inventors: Ross A. Lee, Howard C. Ng, Pallatheri Manackal Subramanian
  • Publication number: 20080205800
    Abstract: A laminate film comprising a polyetheramine resin-containing layer, an adhesion-promoting tie-layer, and a core layer comprising of high crystalline propylene homopolymer and crystalline Fischer-Tropsch wax with an optional amount of hydrocarbon resin which exhibits excellent transparency and oxygen and moisture barrier properties. The laminate film could further have additional layers such as a second polyolefin resin-containing layer, or combinations thereof.
    Type: Application
    Filed: February 28, 2008
    Publication date: August 28, 2008
    Applicant: TORAY PLASTICS (AMERICA), INC.
    Inventors: Tien-Kuei Su, Keunsuk P. Chang
  • Patent number: 7390445
    Abstract: A method of producing a composite sheet having a foam layer of a first polyolefin-based resin and a surface layer of a second polyolefin-based resin provided on at least one side of the foam layer and containing a polymeric antistatic agent. The method includes coextruding through die a first melt containing the first polyolefin-based resin and a physical blowing agent and a second melt containing the second polyolefin-based resin, the polymeric antistatic agent and a volatile plasticizer to obtain the composite sheet. The amount of the polymeric antistatic agent is 4 to 100 parts by weight per 100 parts by weight of the second polyolefin-based resin and the amount of the volatile plasticizer is 5 to 50 parts by weight per 100 parts by weight of a total amount of the second polyolefin-based resin and the polymeric antistatic agent. The second polyolefin-based resin has a crystallization temperature of Ta [° C.
    Type: Grant
    Filed: June 21, 2004
    Date of Patent: June 24, 2008
    Assignee: JSP Corporation
    Inventors: Kazuhiko Morita, Satoshi Iwasaki, Shinpei Arita
  • Patent number: 7387837
    Abstract: The present invention provides a thermoplastic polyurethane composition which comprises an ethylene-vinyl alcohol copolymer and/or a polyamide, and a thermoplastic polyurethane, in which the retention of melt tension thereof, when kept in a molten state at 220° C. for 1 hour, determined by the following equation (1), is not less than 10%. Retention of melt tension (%)=[Melt tension after being kept in a molten state/Melt tension before being kept in a molten state]×100??(1) The thermoplastic polyurethane composition of the present invention is excellent in production stability of a molded article, and can provide a molded article excellent in appearance because the progress of gelation thereof is suppressed even in a molten state.
    Type: Grant
    Filed: April 7, 2006
    Date of Patent: June 17, 2008
    Assignee: Kuraray Co., Ltd.
    Inventors: Yoshihiro Yamana, Hiroyuki Ono
  • Patent number: 7232535
    Abstract: Disclosed is a process for producing non-blocking slats of normally tacky amorphous propylene copolymers. The process entails coextruding the normally tacky amorphous propylene copolymer with a low viscosity polyolefin such as a polyethylene wax forming a core of amorphous propylene copolymer covered with a sheath of polyethylene wax. The coextruded article is cooled, cut (while exposing less than 40 percent of the core) and then coated with a non-tacky powder; thereby, forming non-blocking slats. Disclosed is also a novel amorphous propylene copolymer composition containing no more than 90 weight percent propylene and up to 70 weight percent of an alpha olefin comonomer having a needle penetration greater than 70 to less than 100 dmm at 23° C. and a Brookfield Thermosel Viscosity below 1000 cP at 190° C.
    Type: Grant
    Filed: September 23, 1997
    Date of Patent: June 19, 2007
    Assignee: Eastman Chemical Compamy
    Inventor: Marc Stacey Somers
  • Patent number: 7157135
    Abstract: An embossable film for creating holograms and diffraction gratings and methods of producing the embossable films are provided. The embossable film includes a base layer and a co-extruded embossable layer that is coated with a transparent high refractive index (HRI) coating prior to embossing.
    Type: Grant
    Filed: June 9, 2004
    Date of Patent: January 2, 2007
    Assignee: Toray Plastics (America), Inc.
    Inventors: Wolfgang Decker, Christopher S. Curry, Hiroaki Watanabe, Arthur Eric Bartholomay
  • Patent number: 7132073
    Abstract: The present invention is to provide a method of producing multilayer laminates comprising a polyamide and a fluorine-containing ethylenic polymer laminated together and being excellent in interlayer adhesion strength by multilayer coextrusion in an easy and simple manner without need of any additional step or without being limited to some or other particular adhesive material. The present invention is a production method of a multilayer laminate which comprises laminating at least a polyamide (A) and a fluorine-containing ethylenic polymer (B) by simultaneous multilayer coextrusion using a coextrusion apparatus to obtain the laminate comprising said polyamide (A) and said fluorine-containing ethylenic polymer (B), said coextrusion apparatus comprising a die and a plurality of extruders for feeding resins to said die, and the temperature of said die being set within the range exceeding 260° C. but not higher than 310° C.
    Type: Grant
    Filed: March 23, 2001
    Date of Patent: November 7, 2006
    Assignee: Daikin Industries, Ltd.
    Inventors: Takeshi Inaba, Masakatsu Kitano
  • Patent number: 7063889
    Abstract: [Problem] The object is to provide a resin film for metal sheet laminate which endures severe forming owing to excellent formability and impact resistance, and also to excellent adhesion after forming and heating, further gives stable performance independent of forming conditions, and also provides a laminated metal sheet, and a method for manufacturing the same. [Means for Resolution] The resin film for metal sheet laminate has a mixed resin in which a granular resin mainly existing in a state of grains having 0.1 to 5 ?m in diameter is dispersed in a polyester resin having a main basic skeleton of polyethylene terephthalate and/or isophthalic acid copolymerized polyethylene terephthalate, in a range from 3 to 30% by weight in entire resin. The granular resin is a modified polyolefin resin containing a functional group derived from carboxylic acid in a range from 2 to 20% by weight as carboxylic acid.
    Type: Grant
    Filed: September 18, 2003
    Date of Patent: June 20, 2006
    Assignee: JFE Steel Corporation
    Inventors: Yasuhide Yoshida, Hiroki Iwasa, Hiroshi Kubo, Takeshi Suzuki, Akihiko Furuta, Keiji Sugawara, Masaaki Yamashita
  • Patent number: 7001547
    Abstract: A method and apparatus are described for coextruding two materials A and B, in which B is extruded on A through a port (3), in which the separating wall between the flows of A and B is formed as a flap closure (4) adapted to act as a non-return valve for the flow of B into A, and further means are provided for extruding B through the port in pulses. The pulses may be effected by opening and closing the closure, by mechanical transmission means or by the effect of imposing pressure difference on the flap (4) by the flows of A and/or B. The pulsing means preferably involves rams (1). The invention is particularly suitable for extruding a low viscosity material B onto a higher viscosity material A, or for making sheets or pipes with alternating segments of differential flexibility, or for coextruding a flow of solid particles with a flow of liquid.
    Type: Grant
    Filed: April 11, 2001
    Date of Patent: February 21, 2006
    Inventor: Ole-Bendt Rasmussen
  • Patent number: 6969556
    Abstract: There is described a substantially planar, self supporting, sheet or film (optionally oriented) which comprises at least one layer comprising a first material which is very highly crystalline polymer (preferably polypropylene of 99% or greater isotacity) together with at least one second material in an amount sufficient to improve one or more of the barrier properties, mechanical properties and/or optical properties of the sheet. The second material comprises a (a) nucleating agent; (b) a polymeric material having a ring and ball softening point from about 110° C. to about 170° C. and/or (c) a hydrogenated resin such as dicyclopentadiene hydrogenated resin, a hydrogenated mixed monomer resin; and/or a resin obtainable from a mixture of a-methyl styrene, indene and/or vinyl toluene monomers. Processes for making such films and compositions for use in the process are also described. Such films are useful in shrink wrap applications for example wrapping tobacco products.
    Type: Grant
    Filed: October 17, 2001
    Date of Patent: November 29, 2005
    Assignee: UCB, S.A.
    Inventor: Michael Jeschke
  • Patent number: 6905568
    Abstract: A process for reducing the haze of extrusions of clear polymeric blends containing styrene-butadiene copolymer and a polymer immiscible therewith. An assembly of extrusion layers in which a layer of clear polymeric blends containing styrene/butadiene copolymer and a polymer immiscible therewith is overlayered with layers of clear material that provides a smooth extruded surface.
    Type: Grant
    Filed: June 19, 2003
    Date of Patent: June 14, 2005
    Assignee: Phillips Petroleum Company
    Inventors: Mark D. Hanes, Lee A. Carvell
  • Patent number: 6893730
    Abstract: Oxygen barrier films having a greatly improved dynamic coefficient of friction, and specifically, oxygen barrier films having an exceptionally low dynamic coefficient of friction, reduced moisture sensitivity and good oxygen barrier properties over a wide range of relative humidities. The low coefficient of friction is obtained by using film layers which are blends of a polyamide component and a high density polyethylene which surround an oxygen barrier layer, such as an ethylene vinyl alcohol layer.
    Type: Grant
    Filed: September 24, 2002
    Date of Patent: May 17, 2005
    Assignee: Honeywell International Inc.
    Inventors: Jeffrey D. Moulton, Simon J. Porter
  • Patent number: 6887541
    Abstract: An insulated packaging material includes a thermal insulating layer, which may a fiberfill batt. The batt is laminated to at least one facing layer of film, paper or fabric. The packaging material can be used as a container, such as a pouch. A food-contacting polymer material is applied to the facing layer to form the inner surface of the pouch. The packaging material may be coated on the outer facing layer with a coating material so that it is printable, thus imparting both insulating properties and print capability to the pouch.
    Type: Grant
    Filed: October 15, 2002
    Date of Patent: May 3, 2005
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Thomas E. Benim, Susan G. Chamberlin, Jeffrey A. Chambers, Steven R. Cosentino, Peter R. Hunderup, Ross A. Lee, Susan D. Procaccini, Donna L. Visiolo
  • Patent number: 6852405
    Abstract: Disclosed is a composite sheeting comprised of polystyrene having a thin protective layer of an acrylic ester polymer and a process for producing the composite sheeting. The process comprises joining a molten stream of each polymeric material in a single extruder discharge conduit such that there is produced a single molten stream having a reasonably well defined interface between the two types of polymeric material, and thereafter, passing the resulting single stream of material through a sheet-form extrusion die having its die lips generally aligned with the foregoing interface.
    Type: Grant
    Filed: June 14, 2001
    Date of Patent: February 8, 2005
    Assignee: Atofina
    Inventors: Robert A. Wanat, Leslie A. Cohen
  • Patent number: 6827893
    Abstract: Fastener products having a multiplicity of fastener elements extending from a strip-form base, the base including first and second attachment members for attachment of a substrate therebetween, are formed by continuously introducing molten resin to a gap defined adjacent a peripheral surface of a rotating mold roll. The resin forms part of the strip-form base of the product at the peripheral mold roll surface and fills an array of fixed cavities defined in the rotating mold roll to form portions of the fastener elements as projections extending from a first side of the sheet-form base. While the resin is on the mold roll, a sheet material is introduced.
    Type: Grant
    Filed: March 14, 2001
    Date of Patent: December 7, 2004
    Assignee: Velcro Industries B.V.
    Inventor: William Clune
  • Patent number: 6824864
    Abstract: The present invention relates to bioriented polyethylene films having high water vapor transmission rates (WVTR) and methods for preparing the same. The film comprises a base layer and skin layers. The base layer comprises highly cavitated polyethylene, such as medium density polyethylene (MDPE) or high density polyethylene (HDPE). The cavitating agent in the base layer may be calcium carbonate. At least one skin layer comprises (i) a copolymer of ethylene and at least one other monomer and (ii) a hydrocarbon resin, such as a cyclopentadiene resin. This copolymer (i) may be an ethylene-propylene copolymer or an ethylene-propylene-butene-1 terpolymer. The film may have unidirectional tear properties in the machine direction. This film is particularly useful for packaging food products, such as pieces of candy.
    Type: Grant
    Filed: October 23, 2001
    Date of Patent: November 30, 2004
    Assignee: ExxonMobil Oil Corporation
    Inventor: Michael John Bader
  • Publication number: 20040232581
    Abstract: The present invention relates to a method of producing a plank product and related components having a controllable and realistic wood-grain appearance, the planks and related components having at least one accent color, the method including the steps of: a) introducing into an extruder a powdered or pelletized base material and accent color pellets, the base material containing less than about 75% by weight wood flour, and having a vicat softening temperature, the accent color pellets (i) having a higher vicat softening temperature than said base material, and (ii) including a styrene polymer having a high vicat softening temperature and a melt flow index of greater than or equal to 1.
    Type: Application
    Filed: June 21, 2004
    Publication date: November 25, 2004
    Applicant: CertainTeed Corporation
    Inventor: Richard Arnold Hills
  • Patent number: 6803113
    Abstract: A multilayered packaging film having good antifog performance that is suitable for use in food packaging. The multilayered film comprises an outer film attached to an inner film, which outer film is a combination of a first nylon layer, an ethylene vinyl alcohol layer attached to a surface of the first nylon layer and a second nylon layer attached to the ethylene vinyl alcohol layer. The inner film is a combination of a third nylon layer having a silicone oil on a first surface of the third nylon layer, and a sealant film on a second surface of the third nylon layer, attached either directly or via an intermediate adhesive layer. An antifog composition is either contained within the sealant film or is coated on a surface of the sealant film opposite the third nylon layer. The silicone oil effectively blocks the migration of the antifog composition into an adjacent nylon layer when the multilayered film is stored in roll form.
    Type: Grant
    Filed: September 13, 2002
    Date of Patent: October 12, 2004
    Assignee: Honeywell International Inc.
    Inventors: Simon J. Porter, Jeffrey D. Moulton, Yuan-Ping Robert Ting