Solid Polymer Derived From Reactant Containing A Carboxylic Acid Ester Group Patents (Class 525/222)
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Patent number: 6887912Abstract: An expanded cellular ethylenic polymer product is provided from an irradiated, noncross-linked linear ethylenic polymer. Linear ethylenic polymers can be irradiated at ambient conditions sufficient to introduce branching in the polymer in the absence of detectable cross-linking as indicated by the absence of gels. The irradiated linear ethylenic polymer is compatible with highly branched low density polyethylene and, when mixed therewith, produces a resin having a single broad based melting temperature range as determined by direct scanning calorimetry, which indicates that the polymers in the mixture have similar crystallization behavior suitable for producing low density foams by extrusion foaming. The linear polymers can be obtained from recycled shrink wrap film. Low densities of from 0.7 to less than 4 pcf can be achieved. The foams typically have improved tear resistance as compared to previous products prepared from low density polyethylene, at comparable low densities.Type: GrantFiled: December 22, 2003Date of Patent: May 3, 2005Assignee: Sealed Air Corporation (US)Inventors: Nelson E. Malwitz, Natarajan S. Ramesh, Shau-Tarng Lee
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Patent number: 6887940Abstract: A compatible blend of an engineering thermoplastic such as a polyamide and an olefin polymer material is prepared by (1) making an oxidized olefin polymer material containing carboxylic acid groups or derivatives thereof, (2) extruding a mixture of (a) the oxidized olefin polymer material from step (1), (b) an engineering thermoplastic, (c) optionally, an inorganic base, and (d) optionally, a non-oxidized olefin polymer material, and (3) recovering a blend of the engineering thermoplastic, the oxidized olefin polymer material or an ionomer thereof, which acts as a compatibilizer, and, optionally, the non-oxidized olefin polymer material. The oxidized olefin polymer material can be made by treating the olefin polymer material with an organic peroxide initiator while adding a controlled amount of oxygen.Type: GrantFiled: November 27, 2002Date of Patent: May 3, 2005Assignee: Basell Poliolefine Italia S.p.A.Inventors: Vu A. Dang, Dinshong Dong, Tam T. M. Phan, Cheng Q. Song
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Patent number: 6884483Abstract: Multilayer blow molded containers, which comprise a layer of an ethylene-vinyl alcohol copolymer (A) having an ethylene content of 5 to 60% by mol and a degree of saponification of 85% or more and a layer of a resin composition (B), characterized in that the resin composition (B) comprises 1 to 40% by weight of a thermoplastic resin (b1) having at least one functional group selected from the group consisting of boron-containing groups that are convertible to a boronic acid group in the presence of water and a boronic acid group (hereinafter, referred to as a boron-containing functional group), and 60 to 99% by weight of polypropylene (b2), exhibit excellent gas-barrier properties, have good interlayer adhesion, have excellent thermal stability, and are low in production cost.Type: GrantFiled: December 6, 2002Date of Patent: April 26, 2005Assignee: Kuraray Co., Ltd.Inventors: Nahoto Hayashi, William Scott Lambert, Hiroshi Kawai, Kaoru Ikeda, Shinji Tai
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Patent number: 6884847Abstract: A transparent elastomer composition is obtained by co-coagulation of an emulsion of fluorine-containing resin fine particles having an average particle size of from 20 to 150 nm and an emulsion of elastomer particles, in which the fluorine-containing resin fine particles are finely dispersed uniformly in the elastomer. The transparent elastomer composition provides an elastomeric molded article having excellent mechanical strength, abrasion resistance and transparency.Type: GrantFiled: January 16, 2004Date of Patent: April 26, 2005Assignee: Daikin Industries, Ltd.Inventors: Sadashige Irie, Kazuyoshi Mimura, Hirofumi Nishibayashi, Hiroyuki Tanaka, Tsuyoshi Noguchi, Mitsuru Kishine
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Patent number: 6881492Abstract: A composition suitable for forming a primer layer on a polymer sheet comprising: a) polyethyleneimine; b) latex; wherein the latex has a Tg lower than 25° C. and c) a hydrophilic colloid material. A method of coating the composition is also disclosed.Type: GrantFiled: September 27, 2002Date of Patent: April 19, 2005Assignee: Eastman Kodak CompanyInventors: Yuanqiao Rao, DeBasis Majumdar, Robert J. Kress, David E. Decker
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Patent number: 6875815Abstract: Disclosed is a thermosetting powder coating composition comprising (A) a glycidyl group-containing acrylic resin obtained by (co)polymerizing monomers containing an ethylenically unsaturated monomer having a glycidyl group and/or a ?-methylglycidyl group, (B) a polycarboxyl curative, and (C) an alcohol adduct of a styrene/maleic anhydride copolymer. Also disclosed are a cross-linked cured film of the composition and a process for preparing the composition. According to the invention, blending efficiency and dispersibility of the components of a powder coating, particularly those between the resin component and the curative component, are improved without changing a conventional production process of a powder coating, i.e., a process consisting of melt blending, cooling solidification, pulverization and sieving, and thereby a thermosetting powder coating composition, which is capable of forming a cross-linked cured film improved in appearance properties (high gloss, etc.Type: GrantFiled: May 28, 2003Date of Patent: April 5, 2005Assignee: Mitsui Chemicals, Inc.Inventors: Mitsuyuki Mizoguchi, Yoshiharu Hirose
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Patent number: 6872781Abstract: A polymer blend is described which contains at least one acrylic resin or vinyl resin having at least one ionic or ionizable group and at least one thermoplastic fluoropolymer. Preferably, the polymer blend is an intimate blend of the two polymers which are useful in a variety of applications including in the formation of a membrane which is useful in batteries and fuel cells and the like. Methods of making the polymer blends are also described.Type: GrantFiled: September 24, 2003Date of Patent: March 29, 2005Assignee: Arkema Inc.Inventors: Lotfi Hedhli, Laurent Billon, Michel Foure, Ramin Amin-Sanayei
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Patent number: 6867263Abstract: The present invention provides a method of vulcanized bonding of heat resistant rubber. Vulcanized bonding of a hydrogenated acrylonitrile butadiene rubber (H-NBR) and an acrylic rubber (ACM) comprises a step for mixing zinc oxide (ZnO) and magnesium oxide (MgO) as acid acceptors into non-vulcanized H-NBR; and a step for the peroxide vulcanization of the H-NBR at the same time as the vulcanized bonding of the ACM, which is of an epoxy cross-linking type. Thus, hydrogenated acrylonitrile butadiene rubber (H-NBR) and acrylic rubber (ACM) are vulcanized bonded securely while also providing heat resistance.Type: GrantFiled: March 20, 2003Date of Patent: March 15, 2005Assignee: Tokai Rubber Industries, Ltd.Inventor: Shinobu Kanbe
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Patent number: 6864320Abstract: There is provided a transparent or semitransparent resin composition which can be easily cut. The resin composition can be obtained by mixing a methacrylic resin with an ethylene·vinyl acetate copolymer resin, polybutene-1, polypropylene resin, ionomer and low-density polyethylene in a specific ratio.Type: GrantFiled: December 12, 2000Date of Patent: March 8, 2005Assignee: Kawasaki Sanko Kasei Co., Ltd.Inventors: Katsutoshi Ogawa, Kiyoshi Ohtsu, Atsuhiko Mukai
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Patent number: 6861477Abstract: A superabsorbent composition comprising a superabsorbent material and an elastomer. The superabsorbent composition has a two-phase morphology resulting in one of the superabsorbent material and elastomer being dispersed as aggregates in the other continuous material. The superabsorbent composition has a low glass transition temperature. The low glass transition temperature gives the superabsorbent composition many beneficial properties. This invention also discloses novel superabsorbent particles, fibers, films, and microporous films. Also disclosed in this invention are personal care articles comprising such particles, fibers, films and microporous films.Type: GrantFiled: December 21, 2001Date of Patent: March 1, 2005Assignee: Kimberly-Clark Worldwide, Inc.Inventors: James Hongxue Wang, Jayant Chakravarty, Thomas Kremer, David Glen Biggs, Xiaomin Zhang
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Patent number: 6858692Abstract: A fluoropolymer having repeating units formed by cyclopolymerization of a functional group-containing fluorinated diene represented by the following formula: CF2?CR1-Q-CR2?CH2??(1) wherein each of R1 and R2 which are independent of each other, is a hydrogen atom, a fluorine atom, an alkyl group having at most 3 carbon atoms, or a fluoroalkyl group having at most 3 carbon atoms, and Q is a bivalent organic group having a functional group bonded thereto, and a production method which comprises subjecting the above diene to radical polymerization. The polymer has a high Tg and a functional group concentration sufficient to exhibit the characteristics thereof.Type: GrantFiled: August 11, 2003Date of Patent: February 22, 2005Assignee: Asahi Glass Company, LimitedInventors: Isamu Kaneko, Yoko Takebe
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Patent number: 6858675Abstract: A process of producing a vibration damping rubber member, wherein a rubber material A which enables the vibration damping rubber member to have a low degree of dynamic spring stiffness, a rubber material B which enables the vibration damping rubber member to have a high vibration damping effect, and a vulcanizing agent capable of vulcanizing only an unvulcanized mass of the rubber material B are evenly mixed together and heated to vulcanize the rubber material B dispersed as the fine particles in the rubber material A. A vulcanizing agent capable of vulcanizing the rubber material A is added, and a thus obtained mixture is formed into a desired shape and heated to vulcanize the rubber material A so that the formed vibration damping rubber member has an island-sea structure in which fine particles of the vulcanized rubber material B are dispersed as a dispersed phase in a matrix phase of the vulcanized rubber material A.Type: GrantFiled: October 30, 2000Date of Patent: February 22, 2005Assignee: Tokai Rubber Industries, Ltd.Inventors: Takehiko Taguchi, Ako Yoshikawa
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Patent number: 6855769Abstract: The present invention relates to a thermoplastic styrenic resin composition comprises a styrenic copolymer comprising 15-100 parts by weight of a unit derived from a styrenic monomer (i-1), 0-45 parts by weight of a unit derived from a vinyl cyanide monomer (i-2), 0-40 parts by weight of a unit derived from a copolymerizable vinyl monomer (i-3) other than the above monomers, and 0.0005-1.0 parts by weight of a unit derived from a polyfunctional maleimide monomer, all based on 100 parts by weight of the total amount of (i-1) to (i-3). The thermoplastic styrenic resin composition manufactured in the present invention is excellent in processability. The rubber modified thermoplastic styrenic resin composition of the present invention gives a good heat stability, impact strength, fluidity and other mechanical properties. In addition, it also gives a uniform wall thickness, and the gloss on the surface of injected products after painting process is excellent.Type: GrantFiled: November 7, 2003Date of Patent: February 15, 2005Assignee: Chi Mei CorporationInventor: Wen-Yi Su
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Patent number: 6852801Abstract: An adhesive composition, including a mixture of about 1 percent to about 35 percent by weight of chlorinated polymer, about 1 percent to about 35 percent by weight of a nitrile elastomer, a rubber-modified acrylonitrile copolymer, or mixtures thereof, about 25 percent to about 90 percent by weight of an alkyl acrylate or methacrylate monomer and about 0.01 to about 30 weight percent of a core shell impact modifier.Type: GrantFiled: August 5, 2003Date of Patent: February 8, 2005Assignee: IPS CorporationInventors: Paul C. Briggs, Masaki Minato, Samuel B. Osae
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Patent number: 6849313Abstract: Polyolefin compositions for seal peel films, comprising (percent by weight): A) from 20 to 50% of HDPE, LDPE or EVA having MFR higher than 0.3 g/10 min; B) from 30 to 80% of a random copolymer of propylene with ethylene and/or a C4-C8 ?-olefin, or of a polyolefin composition comprising not less than 20% of said random copolymer of propylene; C) from 0 to 20% of an elastomeric or elastomeric thermoplastic olefin polymer.Type: GrantFiled: February 26, 2001Date of Patent: February 1, 2005Assignee: Basell Technology Company BVInventors: Martine Mechelaere, Ralf Nickles
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Patent number: 6844396Abstract: An acrylic resin composition with excellent impact resistance, weatherability, processability and low gloss is provided. The acrylic resin composition comprises, (A) 10 to 40 parts by weight of a high molecular weight acrylic (co)polymer which is a one-step or multi-step polymer containing 72 to 100% by weight of methyl methacrylate and 0 to 28% by weight of a copolymerizable monomer, the (co)polymer having a specific viscosity of at least 0.5 (solvent: toluene, concentration: 0.4%, temperature: 30° C.), wherein a polymer layer obtained in one of the steps contains at least 72% by weight of methyl methacrylate, has a specific viscosity of at least 0.5 and makes up at least 55% by weight of the total weight of the high molecular weight acrylic (co)polymer (A); (B) 0 to 80 parts by weight of an acrylic (co)polymer containing 50 to 100% by weight of methyl methacrylate and 0 to 50% by weight of a copolymerizable monomer, the acrylic (co)polymer having a specific viscosity of less than 0.Type: GrantFiled: August 28, 2002Date of Patent: January 18, 2005Assignees: Kaneka Corporation, Kaneka Texas CorporationInventors: Takahiko Sugaya, Riichi Nishimura, Kazuhisa Tajima
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Patent number: 6841622Abstract: Acrylic polymer fine particles which comprise primary particles P of 250 nm or more in average particle diameter having a core shell structure and plastisols prepared using the same. In the fine particles, a core polymer C and a shell polymer S are copolymers of the following monomer mixtures Mc and Ms, respectively, and the weight ratio of Mc and Ms is 10/90-90/10: Mc: methyl methacrylate 20-85 mol % (meth)acrylic ester of C2-C8 aliphatic alcohol and/or aromatic alcohol 15-80 mol % other copolymerizable monomers not more than 30 mol %; , when the total amount of these monomers is 100 mol %; Ms: methyl methacrylate 20-79.5 mol % (meth)acrylic ester of C2-C8 aliphatic alcohol and/or aromatic alcohol 5-40 mol % a monomer containing carboxyl group or sulfonic acid group 0.5-10 mol % other copolymerizable monomers not more than 30 mol %.Type: GrantFiled: April 30, 2002Date of Patent: January 11, 2005Assignee: Mitsubishi Rayon Co., Ltd.Inventor: Toshihiro Kasai
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Patent number: 6835269Abstract: A laminated film exhibiting excellent interlayer adhesiveness obtained by extrusion-laminating a resin directly on a polyester film without effecting anchor-coating or without treating the molten film of the extrusion-laminated resin with ozone. The laminated film is obtained by extrusion-laminating, onto the polyester film, an ethylene copolymer containing an unsaturated carboxylic acid and a (meth)acrylic acid ester, which may be further blended with a small amount of an ethylene/&agr;-olefin copolymer having a density of 840 to 900 kg/m3, the amount of the unsaturated carboxylic acid component being from 1 to 12% by weight and the amount of the (meth)acrylic acid ester component being from 2 to 25% by weight.Type: GrantFiled: March 29, 2001Date of Patent: December 28, 2004Assignee: DuPont-Mitsui Polychemicals Co., Ltd.Inventors: Kenji Miharu, Naozumi Suzuki
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Patent number: 6833410Abstract: A method for making rotationally molded objects using resin blends. The resin blend comprises resin pellets and an amount of ground resin powder sufficient to yield rotomolded objects having desirable impact strength and other strength characteristics. Preferably, the resin blend comprises of from about 20% to about 50% by weight of ground resin powder. The resin pellets may optionally contain a reinforcing agent, and such pellets serve as a vehicle for effectively introducing desired reinforcing agents into the product being rotomolded. In addition, resin blends can be used to produce colored objects by rotational molding techniques.Type: GrantFiled: August 13, 2002Date of Patent: December 21, 2004Assignee: Chroma CorporationInventor: Robert D. Swain
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Patent number: 6831131Abstract: The invention relates to a composition based on polypropylene homopolymer or copolymer and on an impact modifier comprising an ethylene/alkyl acrylate copolymer. This composition comprises substantially between 1 and 40% by weight of impact modifier and it may comprise an ethylene-based copolymer taken from the group comprising ethylene/acrylate copolymers, vinyl acetate copolymers, polyethylene obtained by metallocene catalysis or mPE and linear low-density polyethylene or LLDPE. The PP thus modified is useful for manufacturing motor-vehicle parts for example of the bumper or dashboard type, requiring good thermomechanical strength over a wide range of temperatures.Type: GrantFiled: August 7, 2002Date of Patent: December 14, 2004Assignee: AtofinaInventors: Alain Bouilloux, Christophe Lacroix
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Patent number: 6825278Abstract: A modified pressure sensitive adhesive (PSA) is produced by polymerizing at least one ethylenically unsaturated monomer to form a base polymer and reacting the base polymer with a modifying polymer comprising units derived from a n-vinyl lactam to thereby produce a modified polymer. The modified polymer can be used to form modified PSAs having improved adhesion properties over PSAs formed from the unmodified base polymer.Type: GrantFiled: January 16, 2003Date of Patent: November 30, 2004Assignee: Resolution Specialty Materials LLCInventors: Pavel Holub, Edita Moudra, Olga Bernatova, Jiri Horalek, Jiri Havranek
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Patent number: 6825277Abstract: The present invention relates to a high-frequency weldable thermoplastic rubber composition, to a method of rendering non-polar thermoplastic rubbers high-frequency weldable, to a high-frequency weldable shaped article obtainable from the composition according to the invention, to a method for manufacturing said shaped articles and to a method of high-frequency welding of said articles. Furthermore, the present invention relates to shaped high-frequency welded articles obtainable by the method according to the present invention.Type: GrantFiled: October 17, 2002Date of Patent: November 30, 2004Assignee: Advanced Elastomer Systems, L.P.Inventors: Ernst van Issum, Purushottam Agrawal, Phillip Neal, Antonius van Meesche
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Patent number: 6825279Abstract: An ink receptive media suitable for use in a passport is disclosed. A media in accordance with the present invention comprises a substrate, and an image receptive layer comprising a plurality of particles. In a preferred embodiment, the image receptive layer comprises a plurality of crosslinked poly(vinylpyrrolidone) particles.Type: GrantFiled: November 25, 2002Date of Patent: November 30, 2004Assignee: 3M Innovative Properties CompanyInventor: Mark F. Schulz
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Patent number: 6815466Abstract: A colloidally and sedimentation stable coating composition containing ion exchange resins is disclosed. A method of using a colloidally and sedimentation stable coating composition containing ion exchange resins is also disclosed.Type: GrantFiled: November 18, 2002Date of Patent: November 9, 2004Assignee: Rohm and Haas CompanyInventor: Paul Ralph Van Rheenen
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Patent number: 6815506Abstract: A thermoplastic elastomer composition having excellent heat aging characteristics, weather resistance, low-temperature physical properties, oil resistance and flexibility, and moldings using the same, such as hoses, are disclosed. The thermoplastic elastomer composition is obtained by dynamically heat treating a mixture containing (A) an olefin resin, (B) an unsaturated group-containing acrylic rubber, and (D) an inorganic filler in the presence of (E) a crosslinking agent, the component (B) comprising (B1) from 55 to 94.99% by weight of a structural unit derived from an acrylic acid alkyl ester monomer and/or an acrylic acid alkoxyalkyl ester monomer, (B2) from 0.Type: GrantFiled: October 11, 2002Date of Patent: November 9, 2004Assignee: JSR CorporationInventors: Masaaki Takashima, Katsutaka Yokoi, Minoru Tsuneyoshi
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Patent number: 6815023Abstract: A polymer blend and mono-and multilayer films made therefrom suitable for processing or packaging articles which have an improved combination of properties e.g. such as lower tear strength and higher puncture resistance, or higher puncture resistance at both room temperature in air and at elevated temperatures in contact with water wherein the blend preferably has a first copolymer of ethylene and hexene-1 having a copolymer melting point of 80 to 98° C., preferably of 80 to 92° C.; a second copolymer of ethylene and at least one &agr;-olefin having a copolymer melting point of 115 to 128° C.; and a third copolymer of ethylene and a vinyl ester or alkyl acrylate and having a melting point of 60 to 110° C., and a process for making such films, especially shrink films having at least 40% shrink at 90° C. in at least one direction.Type: GrantFiled: September 22, 1999Date of Patent: November 9, 2004Assignee: Curwood, Inc.Inventors: Paul David Tatarka, Paul Nick Georgelos, Scott Allan Idlas
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Patent number: 6815502Abstract: The present invention is directed to ion-sensitive, water-dispersible polymers. The present invention is also directed to a method of making ion-sensitive, water-dispersible polymers and their applicability as binder compositions. The present invention is further directed to fiber-containing fabrics and webs comprising ion-sensitive, water-dispersible binder compositions and their applicability in water-dispersible personal care products.Type: GrantFiled: May 4, 2000Date of Patent: November 9, 2004Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Frederick J. Lang, Kelly D. Branham, Franklin M. Chen, Eric D. Johnson, Jeffrey D. Lindsay, Kim G. Schick, Walter T. Schultz, Tong Sun, Yihua Chang, Pavneet S. Mumick, William S. Pomplun, Dave A. Soerens, Kenneth Y. Wang
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Publication number: 20040220343Abstract: The present invention relates to compositions and preparative process of partially or fully neutralized mixtures of carboxylate functionalized ethylene high copolymers or terpolymers (Mw between 80,000 and 500,000) with carboxylate functionalized ethylene low copolymers (Mw between 2,000 and 30,000) and organic acid salts and injection or compression molded applications such as golf ball components thereof.Type: ApplicationFiled: May 26, 2004Publication date: November 4, 2004Inventor: John C. Chen
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Patent number: 6811859Abstract: A composition coextrudable with PVDF comprises in parts by weight: 20 to 40 parts of PVDF; 40 to 60 parts of PMMA; 5 to 18 parts of an acrylic elastomer; 1 to 4 parts of a UV absorber; the total making 100 parts. Coextruded films comprise a layer of the above coextrudable composition directly attached to the latter; and a PVDF-based layer comprising, as main constituents, 50 to 100 parts of PVDF per 50 to 0 parts of PMMA respectively. The PVDF layer may be in the form of two layers: one placed against the coextrudable layer and comprising, as main constituents, 50 to 90 parts of PVDF per 50 to 10 parts of PMMA respectively; and the other (also called the outer layer) comprising, as main constituents, 75 to 100 parts of PVDF per 25 to 0 parts of PMMA respectively. The resultant products are generally applied to substrates, e.g. as protective films.Type: GrantFiled: July 16, 2003Date of Patent: November 2, 2004Assignee: AtofinaInventors: Anthony Bonnet, Francois Beaume, Karine Loyen, Karine Triballier, David Silagy
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Patent number: 6806320Abstract: Described are melt-processable block copolymers and compositions, embodiments of which may be useful in applications such as pressure sensitive adhesive (PSA) or heat-activatable adhesive, comprising polymeric end block and polymeric B block, wherein end block comprises copolymer and the B block comprises homopolymer or copolymer.Type: GrantFiled: November 15, 2002Date of Patent: October 19, 2004Assignee: 3M Innovative Properties CompanyInventors: Albert I. Everaerts, JingJing Ma, Ashish K. Khandpur, Francois C. D'Haese, Jianhui Xia, Lang N. Nguyen
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Patent number: 6803420Abstract: An adhesive composition is provided that contains both a hydrophobic phase and a hydrophilic phase, wherein the hydrophobic phase is composed of a crosslinked hydrophobic polymer composition and the hydrophilic phase is a water-absorbent blend of a hydrophilic polymer and a complementary oligomer capable of crosslinking the hydrophilic polymer through hydrogen bonding, ionic bonding, and/or covalent bonding. The composition is useful as a bioadhesive, for affixing drug delivery systems, wound dressings, bandages, cushions, or the like to a body surface such as skin or mucosal tissue.Type: GrantFiled: May 1, 2002Date of Patent: October 12, 2004Assignees: Corium International, A.V. Topchiev Institute of Petrochemical Synthsis, Russian Academy of SciencesInventors: Gary W. Cleary, Mikhail M. Feldstein, Valery G. Kulichikhin, Danir F. Bairamov
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Patent number: 6803416Abstract: The present invention provides a moulding composition, which includes: a plurality of bead polymers dispersed in at least one matrix polymer; wherein the bead polymers: have an average particle size of 5 to 40 &mgr;m, and have a refractive index nD at 20° C. which is different from a refractive index nD at 20° C. of said matrix polymer; and wherein the bead polymers are prepared by a process, which includes: contacting: at least one polymerizable mix which includes at least 50% by weight of at least one (meth)acrylate monomer, at least one aluminum compound, and an aqueous phase, to prepare a mixture; dispersing the mixture at a shear rate ≧103 s−1 to form a dispersion, wherein the dispersion is stabilized by the aluminum compound; and polymerizing to produce the bead polymers having an average particle size of 5 to 40 &mgr;m.Type: GrantFiled: December 28, 2001Date of Patent: October 12, 2004Assignee: Roehm GmbH & Co. KGInventors: Klaus Schultes, Thomas Suefke, Markus Parusel, Werner Hoess
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Patent number: 6800693Abstract: An olefin polymer composition, which comprises a cross-linked olefin polymer composition comprising at least one cross-linking rubber like polymer (A) and an olefin resin (B), the cross-linking rubber like polymer (A) being selected from the group consisting of (1) an ethylene-&agr;-olefin copolymer, which contains an ethylene unit and an &agr;-olefin unit having 3 to 20 carbon atoms, and which is produced using a metallocene catalyst, and (2) at least one hydrogenated rubber selected from the group consisting of a homopolymer of a conjugated diene monomer and a copolymer thereof, in which rubber not less than 50% of all olefinic double bonds are hydrogenated, wherein the cross-linking rubber like polymer (A) has a weight average particle diameter of from 0.01 to 3 &mgr;m.Type: GrantFiled: December 13, 2002Date of Patent: October 5, 2004Assignee: Asahi Kasei Kabushiki KaishaInventors: Hajime Nishihara, Ikuji Ohtani
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Publication number: 20040186234Abstract: A resin composition which comprises 50-95 parts by mass of (A) an elastomer with a weight-average molecular weight of at least 300,000 as measured by gel permeation chromatography, 50-5 parts by mass of (B) an ethylene copolymer with a melting point of no higher than 110° C., and (C) a filler at 100-2000 parts by mass based on the total of 100 parts by mass of (A)+(B). The composition has excellent strength and flexibility and allows high density packing of fillers such as magnetic powders.Type: ApplicationFiled: January 8, 2004Publication date: September 23, 2004Inventors: Masashi Tsukamoto, Ichiro Sagae, Tsutomu Arakawa
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Patent number: 6794453Abstract: A crosslinked, predominantly polypropylene-based article comprises a silane-modified ethylene-based polyolefin, at least 50 percent by weight of a non silane-modified polypropylene, and a silane condensation catalyst. The article is moisture crosslinked to a sufficient degree that it possesses thermoset properties such that, when the article is heated to a temperature above the crystalline melting point of the non silane-modified polypropylene, it is softened but does not become liquid. The article preferably comprises a heat-shrinkable sleeve for a high-temperature transmission pipeline.Type: GrantFiled: August 12, 2002Date of Patent: September 21, 2004Assignee: ShawCor Ltd.Inventors: Peter Jackson, Robert Edward Steele, Amarjit Tathgur, Marcus P. Heydrich, Dilip K. Tailor
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Patent number: 6794452Abstract: Polymeric materials that differ from each other in solubility parameters and other properties are covulcanized by reaction with a hydrogenated carboxylated nitrile rubber, a multivalent salt of an organic acid and a curing agent.Type: GrantFiled: July 15, 2002Date of Patent: September 21, 2004Assignee: Bayer Inc.Inventor: Carl Walter von Hellens
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Patent number: 6790910Abstract: The invention relates to antimicrobial polymers and polymer blends which are prepared by polymerizing a monomer of the formula I: where R1=—H or —CH3 R2=branched or unbranched aliphatic hydrocarbon radical having from 1 to 5 carbon atoms, R3=H, or branched or unbranched aliphatic hydrocarbon radical having from 1 to 7 carbon atoms, R4=H, or branched or unbranched aliphatic hydrocarbon radical having from 1 to 7 carbon atoms, R5=H, or branched or unbranched aliphatic hydrocarbon radical having from 1 to 7 carbon atoms, and X=O, NH, NR5 and, where appropriate, then mixing with at least one other polymer. The antimicrobial polymers or blends may be used for producing hygiene items or items for medical technology, e.g. as a coating, or else in surface coatings or protective paints. They may also be used in a process for eliminating/reducing biofouling in water systems.Type: GrantFiled: March 11, 2002Date of Patent: September 14, 2004Assignee: CREAVIS Gesellschaft fuer Technologie und Innovation mbHInventors: Friedrich Sosna, Peter Ottersbach, Beate Kossmann
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Publication number: 20040176518Abstract: The invention provides a primer composition excellent in adhesion to porous substrates and a method of bonding.Type: ApplicationFiled: November 20, 2003Publication date: September 9, 2004Inventors: Toshihiko Okamoto, Kazuo Hagiwara, Junji Takase
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Patent number: 6784249Abstract: There is a need for polymers that offer a high level of heat and ultraviolet light resistance. It is particularly critical for polymers that are utilized in making skin compounds for automotive instrument and door panels to display excellent heat and ultraviolet light resistance. Polymer blends having such characteristics can be made by blending certain rubbery polymers with halogen containing polymers, such as polyvinyl chloride (PVC). There is currently a demand for halogen-free polymers having such characteristics. This invention discloses a rubbery polymer that can be blended with polyolefins, such as polyethylene or polypropylene, to make leathery compositions having good heat and ultraviolet light resistance. The rubbery polymer of this invention is comprised of repeat units which are comprised of (a) butyl acrylate, (b) an alkoxyalkylene acrylate, (c) styrene, (d) a half ester maleate soap, and (e) a crosslinking agent.Type: GrantFiled: April 16, 2001Date of Patent: August 31, 2004Inventor: Hung Dang Ngoc
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Patent number: 6784250Abstract: The present invention provides a resin composition for calender formation containing [I] a propylene polymer in an amount of 1 to 99 mass %, and [II] an olefin-based polymer in an amount of 99 to 1 mass %, wherein [I] the propylene polymer satisfies the following requirements of: (1) a meso pentad fraction (mmmm) is 0.2 to 0.6, and (2) a racemic pentad fraction (rrrr) and (1−mmmm) satisfy the following relation: [rrrr/(1−mmmm)]≦0.1. A material for polyolefin-based leather tone product containing a polyolefin resin layer by the use of the resin composition for calender formation is also proposed. According to the resin composition of the present invention, a resin composition for calender formation, a material for polyolefin-based leather tone product being superior in molding ability, being environmentally friendly, with little sticking and being superior in flexibility and transparency are achieved.Type: GrantFiled: November 26, 2002Date of Patent: August 31, 2004Assignee: Idemitsu Petrochemical Co., Ltd.Inventor: Masato Kijima
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Patent number: 6780935Abstract: A polymer blend is described which contains at least one acrylic resin or vinyl resin having at least one ionic or ionizable group and at least one thermoplastic fluoropolymer. Preferably, the polymer blend is an intimate blend of the two polymers which are useful in a variety of applications including in the formation of a membrane which is useful in batteries and fuel cells and the like. Methods of making the polymer blends are also described.Type: GrantFiled: January 30, 2001Date of Patent: August 24, 2004Assignee: Atofina Chemicals, Inc.Inventors: Lotfi Hedhli, Laurent Billon
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Patent number: 6777490Abstract: Process for preparing a pressure-sensitive adhesive composition, characterized in that tackifiers in dispersed, melted or solid form are mixed with natural rubber latex, the water content being not more than 45% by weight.Type: GrantFiled: May 26, 1999Date of Patent: August 17, 2004Assignee: tesa AGInventors: Bernhard Müssig, Zygmut Kozaczka, Dieter Zielske, Jochen Stähr, Ralf Hirsch
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Patent number: 6777496Abstract: We have developed a process and product which provide thermoplastic articles featuring a permanent outer surface which has selectively varied chemical functionality while maintaining the inherent mechanical properties of the base fiber.Type: GrantFiled: February 7, 2001Date of Patent: August 17, 2004Assignee: Honeywell International Inc.Inventors: Kundan M. Patel, Charles Jay Nelson, Frank Mares, Conor Twomey, Yousef Mohajer
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Patent number: 6777046Abstract: 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: GrantFiled: November 1, 1999Date of Patent: August 17, 2004Assignee: Curwood, Inc.Inventors: Paul David Tatarka, Paul Nick Georgelos, Scott Allan Idlas
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Patent number: 6773863Abstract: Disclosed is a novel positive-working chemical-amplification photoresist composition capable of giving an extremely finely patterned resist layer in the manufacturing process of semiconductor devices. The photoresist composition comprises: (A) 100 parts by weight of a copolymeric resin consisting of from 50 to 85% by moles of (a) hydroxyl group-containing styrene units, from 15 to 35% by moles of (b) styrene units and from 2 to 20% by moles of (c) acrylate or methacrylate ester units each having a solubility-reducing group capable of being eliminated in the presence of an acid; and (B) from 1 to 20 parts by weight of a radiation-sensitive acid-generating agent which is an onium salt containing a fluoroalkyl sulfonate ion having 3 to 10 carbon atoms as the anion such as bis(4-tert-butylphenyl) iodonium nonafluorobutane sulfonate.Type: GrantFiled: February 21, 2003Date of Patent: August 10, 2004Assignee: Tokyo Ohka Kogyo Co., Ltd.Inventors: Katsumi Oomori, Hiroto Yukawa, Ryusuke Uchida, Kazufumi Sato
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Patent number: 6774186Abstract: Rheology-modified thermoplastic elastomer compositions comprising a melt blend of an ethylene/&agr;-olefin polymer and a high melting polymer such as polypropylene or a propylene/&agr;-olefin copolymer wherein the rheology modification is induced by a combination of a peroxide and a free radical coagent. The resulting compositions have an elastomeric phase, a non-elastomeric phase and certain physical properties that exceed those of a like composition that is rheology-modified by peroxide alone. The compositions can be used to make a variety of articles of manufacture, such as automotive instrument panel skins, via calendaring and thermoforming procedures.Type: GrantFiled: February 10, 2003Date of Patent: August 10, 2004Assignee: DuPont Dow Elastomers LLCInventor: Kim Louis Walton
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Patent number: 6759481Abstract: A shape memory polymer which is a reaction product of styrene, a vinyl compound, a multifunctional crosslinking agent and an initiator. The shape memory polymer has particular application as a contact lens mold.Type: GrantFiled: January 24, 2002Date of Patent: July 6, 2004Inventor: Tat Hung Tong
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Patent number: 6756445Abstract: A transparent elastomer composition is obtained by co-coagulation of an emulsion of fluorine-containing resin fine particles having an average particle size of from 20 to 150 nm and an emulsion of elastomer particles, in which the fluorine-containing resin fine particles are finely dispersed uniformly in the elastomer. The transparent elastomer composition provides an elastomeric molded article having excellent mechanical strength, abrasion resistance and transparency.Type: GrantFiled: March 29, 2002Date of Patent: June 29, 2004Assignee: Daikin Industries, Ltd.Inventors: Sadashige Irie, Kazuyoshi Mimura, Hirofumi Nishibayashi, Hiroyuki Tanaka, Tsuyoshi Noguchi, Mitsuru Kishine
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Publication number: 20040122174Abstract: Blends of amorphous and semicrystalline polymers having shape memory properties were prepared by blending a crystalline polymer such as poly(vinylidene fluoride), polylactide, poly(hydroxxybutyrate), poly(ethylene glycol) polyethylene, polyethylene-co-vinyl acetate, poly(vinyl chloride), poly(vinylidene chloride) and copolymers of poly(vinylidene chloride) and poly(vinyle chloride) and an amorphous polymer such as poly(vinyl acetate), poly methyl acrylate, poly ethyl acrylate, atactic poly methyl methacrylate, isotactic poly methyl methacrylate, syndiotactic poly methyl methacrylate and other poly alkyl methacrylates. The method for preparing the polymeric materials and applications thereof, for example, as smart medical devices, are also disclosed.Type: ApplicationFiled: October 10, 2003Publication date: June 24, 2004Inventors: Patrick T. Mather, Changdeng Liu
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Publication number: 20040122177Abstract: A coating composition which includes an aminoalkyl (meth)acrylate containing acrylic polymer, a fluorocarbon polymer and a solvent.Type: ApplicationFiled: December 9, 2003Publication date: June 24, 2004Inventors: Diep Nguyen, Andrew J. Lauer, Robert A. Montague, Edward R. Millero