Abstract: The invention relates to a coextruded, transparent, biaxially oriented polyester film comprising a base layer (B) and a heatsealable top layer (A) which is peelable from APET, the heatsealable and peelable top layer (A) consisting of
Type:
Application
Filed:
August 21, 2003
Publication date:
October 28, 2004
Inventors:
Herbert Peiffer, Bart Janssens, Bodo Kuhmann, Harald Mueller
Abstract: A synthetic roofing shingle or tile is provided, in which a core material is formed, of generally less expensive material, and with a skin material provided, disposed thereabout, with the skin material being generally of greater expense and having desirable weather-withstanding qualities.
Type:
Grant
Filed:
June 2, 2003
Date of Patent:
October 26, 2004
Assignee:
CertainTeed Corporation
Inventors:
Michael L. Friedman, Husnu M. Kalkanoglu, Joong Youn Kim, Thomas Kevin MacKinnon
Abstract: A coextruded, heat-sealable film structure includes a core layer of a thermoplastic polymer having a first side and a second side. A functional layer which is printable, sealable, or can be laminated or is treatable for printing, sealing, or laminating is on the first side of the core layer. A heat-sealable layer is on the second side of the core layer. The heat-sealable layer is composed of a thermoplastic polymer and an amount of a slip system, based upon the entire weight of the heat-sealable layer, sufficient to reduce the coefficient of friction and improve the slip performance of the film structure. The slip system is composed of a silicone gum and at least one antiblocking agent. The film structure exhibits the desirable combination of improved converting performance and excellent machinability performance.
Type:
Application
Filed:
March 25, 2004
Publication date:
October 21, 2004
Inventors:
Karen A. Sheppard, Robert A. Migliorini
Abstract: The present invention provides a protective masking film that can adhere to and provide protection to the surface of a substrate, without the use of an adhesive. The masking film comprises two or more layers of which one of the outer layers is formed from Mxsite™ and the other outer layer formed from a polymer or polymers other than Mxsite™. The masking film is retackable. Also provided are compositions and methods for producing the protective masking film.
Type:
Application
Filed:
September 8, 2003
Publication date:
October 21, 2004
Applicant:
Marko I.R.D.C. Inc.
Inventors:
Julien Lefebvre, Jose Garrocho, Ludovic Leplatois
Abstract: A cold seal release film in the form of a monolayer film or an outer layer of a multilayer film. The cold seal release film includes a nucleating agent and 10%-100% by weight of the polymer composition of a polymer selected from the group consisting of 1-butene homopolymer, 1-butene/ethylene random copolymers having over 50% by weight 1-butene therein blends of the 1-butene homopolymer and the 1-butene/ethylene random copolymers, and 90%-0% by weight of the polymer composition of a polymer selected from the group consisting of ethylene random copolymers of polypropylene, butene random copolymers of polypropylene and ethylene-butene random terpolymers of polypropylene.
Abstract: Disclosed is decorative surface covering that has a substantially non-aqueous absorptive layer and a water retentive layer. The decorative surface covering may be a vinyl-backed floor covering that can be adhered to a substantially non-aqueous absorptive subfloor with a water-based adhesive. The water retentive layer is formed from a polymer matrix and super absorbent water retentive particles. The water retentive layer may also include a hydrophilic additive to facilitate movement of water from the adhesive to the super absorbent water retentive particles. The water retentive layer may also be applied to the substantially non-aqueous absorptive subfloor.
Abstract: Laminates include a thermoplastic substrate layer, a clear coat layer, and a tie layer between the substrate and clear coat layers. The tie layer most preferably includes a first layer adjacent the thermoplastic substrate layer which is comprised of a polyolefin, and a second layer adjacent to the clear coat layer which is comprised of a polyamide. Most preferably, the substrate layer is TPO and the clear coat layer is PVF. The laminates may be employed to manufacture a variety of shaped articles, most preferably automotive trim components.
Type:
Grant
Filed:
August 16, 2002
Date of Patent:
October 19, 2004
Assignee:
Guardian Industries Corporation
Inventors:
Subir K. Dey, Subhash H. Patel, Marino Xanthos
Abstract: Laminates include a thermoplastic substrate layer, a clear coat layer, and a tie layer. The tie layer most preferably includes an adhesive-enhancing effective amount of a maleic anhydride grafted styrenic block copolymer which adhesively bonds the substrate and clear coat layers one to another. Advantageously, the tie layer includes a blend of the styrenic block copolymer and a diamine, especially 2-methylpentamethylenediamine. The laminate may be employed to manufacture a variety of shaped articles, most preferably automotive trim components.
Type:
Grant
Filed:
November 27, 2001
Date of Patent:
October 19, 2004
Assignee:
Guardian Industries Corporation
Inventors:
Subir K. Dey, Subhash H. Patel, Marino Xanthos
Abstract: The invention is an amine-organoborane complex wherein the organoborane is a trialkyl borane and the amine is an amine having an amidine structural component; an aliphatic heterocycle having at least one nitrogen in the heterocyclic ring wherein the heterocyclic compound may also contain one or more nitrogen atoms, oxygen atoms, sulfur atoms, or double bonds in the heterocycle; a primary amine which in addition has one or more hydrogen bond accepting groups wherein there is at least two carbon atoms, preferably three, between the primary amine and the hydrogen bond accepting group, such that due to inter- or intramolecular interactions within the complex the strength of the B—N bond is increased; or a conjugated imine. Preferred hydrogen bond accepting groups include the following: a secondary amine, a tertiary amine, an ether, a halogen, a polyether group or a polyamine group.
Type:
Grant
Filed:
December 17, 1999
Date of Patent:
October 19, 2004
Assignee:
Dow Global Technologies Inc.
Inventors:
Mark F. Sonnenschein, Steven P. Webb, Nelson G. Rondan
Abstract: The present invention features an inkjet recording medium suitable for recording images with dye and pigmented inks, comprising a substrate coated with at least two layers comprising:
Abstract: The present invention is for the improvement of inter-layer bonding strength in polypropylene films through the addition of ethylene as a mini-random copolymer in an amount of no more than about 1 weight percent, more preferably no more than about 0.7 weight percent, and most preferably between about 0.3 weight percent to about 0.5 weight percent or even amounts less than about 0.2 weight percent. The invention allows the improvement of inter-layer bond strength in multi-layer films resulting specifically in improved heat seal strength. The invention encompasses both the resulting films with enhanced heat seal strength and the process for producing such films.
Abstract: A self-adhesive protective film having a backing layer and an adhesive layer, characterized in that
the backing layer is an undrawn film,
the backing layer comprises at least one polypropylene block copolymer and
the amount of polypropylene block copolymer makes up from 10 to 95% (w/w) of the protective film.
Type:
Grant
Filed:
March 6, 2002
Date of Patent:
October 12, 2004
Assignee:
tesa AG
Inventors:
Nicolai Böhm, Ralf Hirsch, Jobst-Waldemar Klemp, Robert Meyer, Bernhard Müssig
Abstract: The invention relates to the use of a pololyfin film for scaling purposes. The film consists of a base layer which is made of polyolefin polymers and at least one outer covering layer. The covering layer contains at least 50 wt. % of a polyolefin modified by maleic acid anhydride, in relation to the weight of the covering layer, and undergoes flame surface treatment on the surface of said covering layer.
Abstract: An elastic laminate is provided which has an elastic layer and one or two outer facing layers. The elastic layer is formed from an improved styrene-(ethylene-butylene)-styrene-(ethylene-butylene) tetrablock copolymer, or a blend of the copolymer. The copolymer has a number average molecular weight of at least about 70,000. The two ethylene-butylene blocks have number average molecular weights which together constitute more than 75% of the number average molecular weight of the copolymer.
Type:
Application
Filed:
March 24, 2003
Publication date:
October 7, 2004
Inventors:
Oomman Painumoottil Thomas, Glen Thomas Mildenhall, Alexander J. Neeb, Susan Carol Paul, Tamara Lee Mace, Arthur Edward Garavaglia
Abstract: The present invention relates to a synthetic leather free from halogens and prepared with a method characterized in that it comprises the following stages: a) forming, in a mould by means of slush moulding, a first layer, i.e. the visible layer in the finished leather, from a polyolefin composition grafted with silanes and cross-linkable in the presence of water, b) in immediate succession, forming, in said mould by means of slush moulding, a second layer from a polyolefin composition having a semi-crystalline phase with a high melting point not less than 120° C. and preferably not less than 140° C.
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 highly crystalline polymer (preferably polypropylene of 99% or greater isotacity) together with at least two 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 &agr;-methyl styrene, indene and/or vinyl toluene momomers. 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.
Abstract: The invention is a two part composition useful for initiating cure of one or more polymerizable monomers which cure when exposed to free radicals comprising in one part an organoboraneamine complex and in a second part an isocyanate which is capable of decomplexing the organoborane complex wherein the ratio of amine nitrogen atoms to boron atoms is greater than 4.0:1.0.
Abstract: The invention provides a container such as a bottle or flask, made heterogeneously from a material with a barrier effect and a polymer material, characterised in that the material with a barrier effect is an amorphous carbon material with a polymer tendency which is applied as a coating on a substrate of polymer material.
Type:
Grant
Filed:
September 26, 2000
Date of Patent:
October 5, 2004
Assignee:
Sidel
Inventors:
David Darras, Jean-Michel Rius, Patrick Chollet, Naïma Boutroy, Nasser Beldi, Fabrice Oge
Abstract: A biaxially oriented multilayer film, able to prevent gaps between the film and a package containing a product or wrinkles and to wrap in a predetermined way while preventing smell from being transferred to the product, comprised of a base layer formed by a propylene-based polymer and surface layers formed by a propylene-based resin on the two surfaces of the base layer, wherein a heat shrinkage rate R1 in a length direction and a heat shrinkage rate R2 in a width direction when heating at 120° C.
Abstract: A coating (4) for a pipe (1) adapted for use in the transportation of hydrocarbons between production and processing facilities, said coating comprising either a polypropylene or polyethylene copolymer mixed with sintered material of either polylpropylene or polyethylene.
Abstract: Provided is a gas barrier laminated film having no fear of deterioration in transparency and excellent in transparency and gas barrier property at a high humidity as well as a process for producing same. The present invention is featured by a gas barrier laminated film wherein a gas barrier layer (B) has been formed on at least one surface of a film substrate (A), the gas barrier layer (B) being comprised of a composition (b3) of an ethylene-vinyl alcohol copolymer (b1) having an ethylene content of 1˜19 mol % and (meth)acrylic acid polymer (b2). In case the film substrate is coated on at least one surface thereof with a vapor deposition layer of an inorganic oxide or the OPP film is coated on at least one surface thereof with the layer of the modified propylene polymer, the gas barrier laminated film is obtained which is more enhanced in adhesion power to the film substrate.
Abstract: An adhesive tape comprising a backing and a layer of adhesive on the backing. The backing comprises a biaxially oriented substrate which comprises an isotactic polypropylene composition. The tapes and backings of this invention can be severed readily using commercial tape dispensers having metal or plastic cutting teeth to produce cleanly serrated cut edges on the tape. The biaxially oriented substrate is preferably made from a resin comprising an isotactic polypropylene homopolymer having a melt flow rate greater than 8 grams/10 minutes, more preferably greater than 12 grams/10 minutes, and still more preferably greater than about 20 grams/10 minutes. One preferred way to obtain such a resin is to blend:
A) at least one isotactic polypropylene homopolymer “A” having a weight average molecular weight of at least 350,000 grams/mole and melt a flow rate of about 0.5-8 grams/10 minutes, more preferably about 0.
Abstract: Broadly, the present invention provides a thermoplastic vulcanizate which can be readily processed into sheeting material for covering a roof that is both flexible and highly elastic. Where other thermoplastic elastomeric compositions have either been too stiff to act as roofing membranes or not processable due to their melt flow characteristics, the present thermoplastic vulcanizate employs a polypropylene random copolymer resin and a polyethylene random copolymer resin having about 10 to about 35 percent by weight &agr;-olefin co-monomer units; together with a compatibilizing rubber and a peroxide-based cross-linking agent, to provide an effective membrane for covering roofs.
Abstract: A laminate for use in producing paperboard based laminated structures for beverage containers prepared by applying a layer of EVOH, nylon, or PET onto the paperboard, coating a unique tie layer comprising an anhydride-modified polyolefin based tie resin and an inorganic filler onto said layer of EVOH, nylon, or PET and applying a polyolefin layer onto the tie layer. The paperboard structure provides improved end use performance in fabrication and importantly cost savings.
Type:
Application
Filed:
March 19, 2003
Publication date:
September 23, 2004
Inventors:
Tricia Susan Reighard, James Irvin Marchman, Alexander Craig Bushman
Abstract: A layered composite material comprises a backing made from a thermoplastic polymer, an intermediate layer arranged thereupon, and a heat-cured layer applied to the intermediate layer, where the bonding material of the intermediate layer is a thermoplastic. The intermediate layer and the backing may be composed of the same thermoplastic. The intermediate layer and the heat-cured layer may also be applied to both sides of the backing. The layered composite material may furthermore comprise a decorative layer between the intermediate layer and the heat-cured layer.
Abstract: A thermoplastic multi-layer film for forming hermetic seals on packages comprising layer A comprising polyethylene, layer B comprising polypropylene, layer C comprising a copolymer, and an adhesion promoting coating applied to layer C.
Abstract: Disclosed is a sealant film has at least two layers including a base layer (X) and a sealant layer (Y) as essential constituents, said base layer (X) comprising a resin composition (AA) which comprises 50 to 98% by weight of a polyolefin resin (A) and 2 to 50% by weight of a tackifier (B), said sealant layer (Y) comprising a polyolefin resin composition (BB), wherein the polyolefin resin (A) is an ethylene polymer (A1) having a melt flow rate (MFR, ASTM D 1238, 190° C., load of 2.16 kg) of 0.1 to 50 g/10 min and a density (ASTM D 1505) of 0.850 to 0.960 g/cm3 and/or a propylene polymer (A2) having a melt flow rate (MFR, ASTM D 1238, 230° C., load of 2.16 kg) of 1 to 100 g/10 min, and the tackifier (B) has a glass transition temperature of 20 to 140° C. and a number-average molecular weight of 1200 or less.
Abstract: A substrate suitable for printing a toner image thereon, comprising: a sheet of plastic; an underlayer coating, on the sheet of plastic, comprising a first polymer material preferably comprising a polymer chosen from the group consisting of amine terminated polyamide, a silane coupling agent and amino propyl teriethoxy silane; an overlayer coating, directly on the underlayer, comprising a second polymer material and having an outer surface to which a toner image can be fused and fixed, the second polymer preferably consisting essentially of a polymer chosen from the group consisting of ethylene acrylic acid copolymer, polyvinyl pyridine and styrene butadine copolymer.
Abstract: Multilayer structures useful for packaging products, such as bone-in meat, cheese and other like products, are provided. More specifically, the multilayer structures are useful for bone-in meat packaging, cook-in packaging, shrink film packaging and other like packaging. The multilayer structures are coextruded and have sufficient durability, strength, tear resistance and puncture resistance, while also providing oxygen barrier protection. In addition, the multilayer barrier structures are biaxially oriented so as to be heat-shrinkable around products.
Type:
Application
Filed:
December 12, 2003
Publication date:
September 9, 2004
Inventors:
Michael J. Douglas, Duane H. Buelow, Chad D. Mueller, Robert J. Blemberg, Roberto P. Castellani
Abstract: The present invention relates in a first embodiment to a polymer film comprising a propylene random copolymer with a total comonomer content of 4.5 to 12 mol % wherein the sealing initiation temperature SIT of the film is Tm−30° C. or less, preferably Tm−33° C. or less, in a second embodiment to a polymer film comprising a propylene random copolymer with a total comonomer content of 4.5 to 12 mol % wherein the film is having a relative reduction of the static friction value (inside-inside) from one to four days of 35% or more, preferably 40% or more, in a third embodiment to a polymer film comprising a propylene random copolymer with a total comonomer content of 4.5 to 12 mol % wherein the distribution of the comonomer in the random copolymer determined according to TREF method is multimodal, preferably bimodal, in a fourth embodiment to a polymer film comprising a propylene random copolymer with a total comonomer content of 4.
Type:
Application
Filed:
April 7, 2004
Publication date:
September 9, 2004
Inventors:
Pirjo Jaaskelainen, Markus Gahleitner, Manfred Kirchberger, Paivi Pitkanen
Abstract: Disclosed is a formable thermoplastic multi-layer laminate comprising an outer layer comprising a polymer comprising resorcinol arylate polyester chain members, a middle layer comprising a thermoplastic polymer, an inner-tie layer comprising a thermoplastic polymer comprising a carbonate polymer and an acrylonitrile-styrene graft copolymer comprising at least one of an acrylonitrile-styrene-acrylate graft copolymer (ASA) or an acrylonitrile-butadiene-styrene graft copolymer (ABS), the middle layer being between the outer layer and the inner-tie layer and being in contact with both the outer layer and the inner-tie layer. Also disclosed are a formed multi-layer laminate and an article comprising the multi-layer laminate bonded to a substrate. A method of making the article is also disclosed.
Type:
Application
Filed:
December 30, 2003
Publication date:
September 9, 2004
Inventors:
Michael Shoen Davis, Martin Lindway, Michael T. Roland, Joseph Anthony Suriano, Hua Wang, Vicki Herzl Watkins, Georgios S. Zafiris, Hongyi Zhou
Abstract: A heat shrinkable multilayer film including a thermoplastic heat sealable inner layer, an abuse layer of a thermo-plastic polymer blend having a higher average melting point than said inner layer, and a thermoplastic, optically clear outer layer adjacent said abuse layer, wherein said outer layer has a lower Vicat softening point than said abuse layer. A film in accordance with the invention has high hot water seal strength, high burn-through resistance and superior optical properties without the need for irradiation.
Abstract: A radiation curable coating comprising:
(i) at least one radiation polymerizable reactant;
(ii) at least one initiator for initiating cure;
(iii) at least one wax;
wherein the wax is present in an amount sufficient to reduce the 60° gloss of the cured coating to a gloss level less than 40 when the coating is cured by exposure to radiation in the presence of oxygen to provide a dry film thickness of 1.0±0.1 mil.
Type:
Grant
Filed:
August 16, 2002
Date of Patent:
September 7, 2004
Assignee:
The Sherwin-Williams Company
Inventors:
William R. Dawson, Tai M. Liang, Joseph E. Miller
Abstract: Films disclosed herein contain a base or core layer comprising a first polypropylene, a second polypropylene, and a hydrocarbon resin. The base layers may also include other additives as described below. The first polypropylene is preferably a high crystallinity polypropylene having a melting point above about 155° C. or a polypropylene having a polydispersity (Mw/Mn) greater than about 4.0. The second polypropylene may be any conventional polypropylene, preferably having a melting point below about 160° C. and/or a polydispersity less than about 5.0.
Type:
Application
Filed:
December 29, 2003
Publication date:
September 2, 2004
Inventors:
Jeffrey Wen-Cheng Kuo, Kenneth Lewtas, William Moa-Tseng Chien
Abstract: A finished PTFE film is produced by first preparing an extruded, dried, unsintered and unexpanded PTFE feed film, and then reducing the thickness of the feed film by more than 20% by passing it with back tension through a roll nip.
Abstract: Disclosed is a matte biaxially oriented polypropylene film having improved matte characteristic and processability. The film comprises one or more surface layers made of a composition comprising 100 parts by weight of a resin blend of 40-60 wt % of polyethylene (I) and 60-40 wt % of polypropylene (II), 0.005-0.04 parts by weight of a peroxide (III) and 0.1-0.5 parts by weight of a fluoroelastomer or a metal stearate (IV). The matte biaxially oriented film has low gloss (45°, <10%) and high haze (>70%), and solves problems related to increase of silver (or bright) spots and roughness of a matte pattern, and a shortened die cleaning cycle due to die build-up.
Type:
Grant
Filed:
September 5, 2002
Date of Patent:
August 31, 2004
Assignee:
SK Corporation
Inventors:
Jang-Weon Rhee, Tae-Keun Lee, Soo-Hyun Cho
Abstract: Film for the manufacture of self-adhesive, especially label films laminates, which may be stamped, consisting of at least three layers, by which the inner layer contains polyolefine and/or olefin-copolymers and at least one additional layer each is present on both sides of the inner layer. This additional layer should contain a mixture of styrene-butadiene-styrene-blockcopolymers and polystyrene-homopolymers. The invention also refers to a process for the manufacture and the use of such a film.
Abstract: The present invention is directed to a release composition for molds and formers used in the production of natural and synthetic latex articles. The release coating contains a water-borne, high Tg polymer formed from at least one hydrophobic monomer and at least one hydrophilic monomer, where the Tg of the polymer is at least −10° C. One advantage of the release composition is that it is compatible with a coagulant solution used in the formation of latex gloves. Articles formed using the release coating have good anti-blocking properties.
Type:
Grant
Filed:
June 15, 2001
Date of Patent:
August 31, 2004
Assignee:
National Starch and Chemical Investment Holding
Corporation
Inventors:
Zhixin Li, Joseph B. Gardner, Chaodong Xiao, John S. Thomaides, Yasuo Tokimori, Stanislaw Petrash, Christopher G. Gore
Abstract: A multilayer shrink film and methods of making same comprising one or more polyethylenic layers, one or more polystyrenic layer and polystyrene compatibilizing layers situate between each polyethylenic layer and polystyrenic layer wherein the polystyrene compatibilizing layers comprise less than 1% by weight substantially random interpolymer. The multilayer shrink films of the invention are produced using film biaxial orienting means.
Abstract: The invention provides use of a polymer composition comprising polyethylenimine and one or both of polyvinyl alcohol and polyvinyl alcohol co-ethylene for protection against harmful and/or noxious agents. The invention further provides a laminate suitable for providing protection against harmful and/or noxious agents, the laminate comprising a layer of a polymer composition comprising polyethylenimine and one or both of polyvinyl alcohol and polyvinyl alcohol co-ethylene is also disclosed.
Type:
Application
Filed:
April 21, 2004
Publication date:
August 26, 2004
Inventors:
Stuart Anson Brewer, Corinne Amy Stone, Colin Robert Willis, Brian Alan Beadle
Abstract: A plastic masking film comprises at least two layers, an outer layer having sufficient surface energy to ensure the adherence of paint, and an inner layer providing cling to a surface. The outer layer comprises a corona-treated thermoplastic material having a surface with a surface energy greater than 50 dynes/cm. at the time of manufacture and which remains at a minimum of 35 dynes/cm. until use. The thermoplastic material of the outer layer comprises one or a combination of members selected from the group consisting of ethylene vinyl acetate, polyvinyl alcohol, polyvinyl acetate, ethylene vinyl alcohol, and high density polyethylene. The inner layer comprises high density polyethylene. Desirably, the film also includes a central core layer formed of one or a combination of polyolefins, preferably low-density polyethylene or linear low-density polyethylene, compatible with the inner and outer layers.
Type:
Application
Filed:
February 23, 2004
Publication date:
August 26, 2004
Inventors:
Graham M. Chapman, Adam K. Lowry, Paul C. Keiswetter, James K. Craig
Abstract: A covering material comprising a first layer, which forms the wearing layer of the structure and contains an ionomer, as well as a second layer next to the first layer. According to the invention, the first layer contains a wear-resistant and electrically conductive ionomer polyelectrolyte and the second layer is electrically conductive. The first layer comprises in particularan ionomer, which is a polymer of a co- or terpolymer of ethylene and acrylic or methacrylic acid, or any other known ionomer, and a block polyether, the polymer being ionically crosslinked with alkali and/or alkaline-earth and/or metal cations. The second layer forms the bottom layer of the structure, and it is made up of a polyolefin elastomer that has been rendered electrically conductive. The material according to the invention is suitable as covering for ESD applications.
Abstract: Polypropylene resin compositions are provided that are useful in the production of biaxially oriented polypropylene films (BOPPs). The resins of the present invention are blends of high crystalline (low solubles) polypropylene homopolymer and an ethylene/propylene random copolymer (RCP). These blends can be used to replace standard high solubles BOPP grade polypropylene homopolymers. In addition, the use of high crystalline polypropylene homopolymers in the blends imparts improved stiffness to the finished films while maintaining good processability of the blends.
Abstract: The present invention includes a laminate and formation of a laminate having at least one layer of an ionomer and at least one layer of an acid polymer or blend of acid polymer and a thermoplastic polyolefin that can be thermoformed to form a shaped laminate. The shaped laminate can then be contacted with a plastic substrate such as a thermoplastic polyolefin to form a composite article by such means as, for example, injection molding. The laminate can be pigmented to eliminate the need to paint the surface of the plastic substrate. Impact and scratch resistant articles can be formed from the laminated substrate such as automotive parts, appliance body parts and sporting equipment.
Type:
Application
Filed:
April 6, 2004
Publication date:
August 19, 2004
Inventors:
Joseph D Domine, Jeffrey Valentage, Prasadarao Meka
Abstract: A bag combination of: (A) a heat shrinkable film bag having a layer comprising: (a) 45-85 wt. % of a C2 copolymer (55-98° C. m.p.) of C6 or C8; (b) 5-35 wt. % of a second C2 &agr;-olefin copolymer (115-128° C. m.p.); and (c) 10-50 wt. % of a third polymer (60-110° C. m.p.) of an unmodified or anhydride-modified, EVA, EAA or copolymer of C2 and methacrylic acid or an alkyl acrylate; where a+b≧50 wt. % based on a+b+c; and the bag film has a total energy absorption≧0.70 Joule and a 90° C. shrink≧50%; and (B) a bag laminate which covers≧25% of the bag's surface; the laminate film comprising: 5-20 wt. % of (i) an ionomer; and 5-95 wt. % of (ii) a copolymer (55 to 95° C. m.p. and {overscore (M)}w/{overscore (M)}n of 1.5 to 3.5) of C2 and a C6-C8 &agr;-olefin; 0 to 90 wt. % each of (iii) a copolymer of C2 and a C4-C8 &agr;-olefin (100-125° C. m.p.); (iv) a copolymer (105 to 145° C. m.p.) of propylene and C2 or C4; and (v) a copolymer (125 to 135° C. m.
Type:
Grant
Filed:
July 6, 2000
Date of Patent:
August 17, 2004
Assignee:
Curwood, Inc.
Inventors:
Paul David Tatarka, Paul Nick Georgelos
Abstract: The invention relates to a multi-layer, sealable biaxially oriented polypropylene film consisting of a base layer and at least one sealable covering layer. The base layer contains between 1 and 15 weight % of a resin with a mean molecular weight Mw of between 600 and 1,500 and between 1 and 6 weight % of a wax with a mean molecular weight Mn of between 200 and 700. The n-heptane insoluble part of the polypropylene of the base layer has a chain isotactic index of at least 95%, as measured by 13C-NMR spectroscopy. The invention also relates to a method for producing said film and to its use.
Type:
Grant
Filed:
September 5, 2000
Date of Patent:
August 17, 2004
Assignee:
Hoechst Trespaphan GmbH
Inventors:
Angela Speith-Herfurth, Robert Hansohn, Detlef Schumann, Frank Ernst
Abstract: A polymer blend and mono-and multilayer films made therefrom having an improved combination of properties such as high shrinkage values and high puncture resistance wherein the blend has a first copolymer of ethylene and octene-1 having a copolymer melting point of from 55 to 95° C., preferably of from 80 to 92° C.; a second copolymer of ethylene and at least a &agr;-olefin having a copolymer melting point of from 115 to 128° C.; and a third copolymer of ethylene and a vinyl ester or alkyl acrylate and having a melting point of from 60 to 110° C., and a process for making such films, which preferably have at least 45% shrinkage at 90° C. in at least one direction.
Type:
Grant
Filed:
November 1, 1999
Date of Patent:
August 17, 2004
Assignee:
Curwood, Inc.
Inventors:
Paul David Tatarka, Paul Nick Georgelos, Scott Allan Idlas
Abstract: The present invention provides a peel-and-stick covering product for a building structure including an attached fabric layer coated with an adhesive.
Abstract: The present invention relates to a method for manufacturing polyolefin tarpaulin coated with inorganic compound comprising the steps of: producing the inorganic compound including several ingredients such as potassium 21.18 wt %, calcium 15.59 wt %, sodium 13.61 wt %, magnesium 13.31 wt %, iron 3.87 wt %, manganese 0.31 wt %, zinc 0.19 wt %, silicon 15.27 wt %, aluminum 13.75 wt %, others 1.92 wt %, mixing the inorganic compound with water and thereafter drying the mixed compound; forming a master batch by mixing the dried inorganic compound and resin for contacting; producing polyolefin tarpaulin through a coating device by mixing the processed master batch inorganic compound; providing a liquid type inorganic compound; and coating the produced polyolefin tarpaulin with the liquid type inorganic compound; the liquid type coating is performed on the surface layer of the processed polyolefin tarpaulin and then dried at the room temperature of 80-150 degree during 1-2 minutes.