Two Or More Carboxylic Acid Or Derivative Groups Patents (Class 524/321)
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Patent number: 6897253Abstract: A stable, aqueous composition containing a substantially crosslinked alkali-swellable acrylate copolymer rheology modifier, a surfactant, an alkaline material, and various compounds therein, as for example substantially insoluble materials requiring suspension or stabilization, such as a silicone, an oily material, or a pearlescent material. Additionally, this invention also relates to the formation of a rheologically and phase stable cationic hair dye composition. The invention further relates to the incorporation of an acidic material after the addition of an alkaline material to reduce the pH of the composition without negatively impacting the viscosity of the composition.Type: GrantFiled: June 23, 2003Date of Patent: May 24, 2005Assignee: Noveon IP Holdings Corp.Inventors: Julie F. Schmucker-Castner, Hal Ambuter, Marcia Snyder, Ashley A. Weaver, Sahira Kotian
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Patent number: 6852783Abstract: A CO2 releasing composition that can be incorporated into the packaging for carbonated beverages having a co-continuous interconnecting channel morphology comprising at least three components, (a) wherein component A is selected from the group of polymers that are semicrystalline polymers and amorphous polymers, wherein the amorphous polymers have a shear modulus greater than about 8 MPa; (b) wherein component B is a polymer; (c) wherein components A and B are immiscible within each other and, if components A and B react after mixing, components A and B are immiscible prior to reaction; (d) wherein component C is a particle and a composition that has an ability to release CO2.Type: GrantFiled: December 19, 2001Date of Patent: February 8, 2005Assignee: CSP Technologies, Inc.Inventor: Ihab Hekal
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Patent number: 6846855Abstract: A sizing composition and method for manufacturing such, which is suitable for use in manufacturing fiber-reinforced composites which have desirable properties such as high strength, high resistance to water and chemical degradation, and improved coloring. This is achieved in part by good adhesion of the sizing composition to the reinforcing fibers and the polymer matrix. The sizing composition includes an emulsion having a grafted polyolefin, two or more saturated fatty acids, and one or more silane coupling agents. When reinforcing fiber materials sized according to the invention are used in a molding process, the resulting composites are observed to show minimal discoloration.Type: GrantFiled: May 1, 2001Date of Patent: January 25, 2005Assignee: Owens Corning Fiberglas Technology, Inc.Inventors: Les E. Campbell, Sanjay P. Kashikar
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Patent number: 6828375Abstract: Disclosed is an electrically conductive polyamide resin composition, which is advantageous in light of very excellent flexibility and flowability, suitable for use in extrusion and injection components for motor vehicles requiring impact resistance and electroconductivity. The polyamide resin composition comprises (a) 40-70% by weight of semi-crystalline polyamide resin, (b) 15-40% by weight of thermoplastic elastomer grafted with 0.5-2.0% by weight of maleic anhydride, (c) 9-20% by weight of carbon black powder, (d) 1-10% by weight of sulfonamide based material, and (e) 0.001-0.02% by weight of dicarboxyl based material.Type: GrantFiled: December 19, 2001Date of Patent: December 7, 2004Assignee: Hyundai Motor CompanyInventor: Soo-Chul Park
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Publication number: 20040209984Abstract: Thermoplastic molding compositions comprisingType: ApplicationFiled: January 5, 2004Publication date: October 21, 2004Inventor: Michael Geprags
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Patent number: 6806345Abstract: Aliphatic polycarbonate homo- and co-polymers are obtained by ring-opening homo- or co-polymerization of cyclic carbonates by DMC catalysis. These polymers are useful in the production of polyurethanes.Type: GrantFiled: September 2, 2003Date of Patent: October 19, 2004Assignee: Bayer AktiengesellschaftInventors: Jörg Hofmann, Walter Schäfer, Christian Steinlein
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Patent number: 6783857Abstract: Using a gas barrier resin composition including 83 to 15% by mass of a compound (A) having two or more hydroxyl groups in a molecule thereof and 17 to 85% by mass of a compound (B) in which at least one carboxyl group is bound to each of three or more consecutive carbon atoms in a molecule thereof, wherein the compound (B) is any one of a compound in which no anhydrous structure is made among the carboxyl groups and a compound in which at least one anhydrous structure is made among the carboxyl groups, or using a gas barrier coating agent including the compound (A), the compound (B) and a solvent, the present invention provides a gas barrier molded material, which has high gas barrier property in that it has less reduction of gas barrier property even in a high humidity atmosphere, has excellent transparency, does not generate poisonous gas when it is subjected to an incineration treatment, is friendly to the natural environment because of the non-use of organic solvents, and has good productivity.Type: GrantFiled: July 19, 2002Date of Patent: August 31, 2004Assignee: Unitika Ltd.Inventors: Arihiro Anada, Shoji Okamoto, Kenjin Shiba, Hayami Onishi
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Publication number: 20040167260Abstract: The present invention provides a binder composition comprising a low molecular weight polycarboxylic acid, such as maleic anhydride, and a low molecular weight poly alcohol, such as polyvinyl alcohol, that exhibits improved cure performance with reduced emissions without sacrificing the performance of the final product or complication the manufacturing process. The binder composition may also incorporate a cure catalyst or accelerant such as sodium hypophosphite.Type: ApplicationFiled: February 21, 2003Publication date: August 26, 2004Inventors: Liang Chen, William E. Downey, Kathleen M. Bullock, Michael T. Pellegrin, Yadi Delaviz, Kevin Guigley, Harry B. Cline
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Patent number: 6770697Abstract: The invention includes a process for preparing an improved melt-strength polyolefin blend by incorporating a polyolefin/clay nanocomposite product. The nanocomposite-modified polyolefin blend is used to form articles through processing operations that involve stretching and/or drawing, such as thermoforming, melt spinning, blow molding and foaming. The addition of the nanocomposite product to the polyolefin blend improves the sag resistance of the polyolefin and broadens the processing window of the operation.Type: GrantFiled: February 7, 2002Date of Patent: August 3, 2004Assignee: Solvay Engineered PolymersInventors: Marta Drewniak, Xia Zhao, Satchit Srinivasan
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Patent number: 6770329Abstract: The present invention relates to a process for producing single-coat or multicoat clearcoat finishes on primed or unprimed substrates by applying at least one powder coating dispersion, in particular a powder clearcoat slurry, to the substrate and then curing the resulting film(s) thermally and/or with actinic radiation, in which oxalic acid is added to at least one powder coating dispersion, in particular to a powder clearcoat slurry.Type: GrantFiled: October 17, 2002Date of Patent: August 3, 2004Assignee: BASF Coatings AGInventors: Günther Ott, Joachim Woltering, Wilfried Stübbe, Ulrike Röckrath, Maximilian Bendix, Ulrich Kalck, Jan Berg, Götz-Ekkehard Sapper
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Patent number: 6759462Abstract: A coating system for in-situ coating of a surface formed by a plurality of plasterboard sections comprises a dry powder composition which is dispersible in an aqueous applicator medium and provides a very high quality surface finish to which gloss or matt paint may be applied directly without joint photographing or show-through of fasteners. The coating composition may be applied by a spray coating technique or a roller technique. The dry powder composition comprises calcium carbonate and, by weight, relative to calcium carbonate, from 4% to 11% of a polymeric binder, from 0.60% to 1.5% of a thickening agent and from 0.10% to 0.35% of a surfactant.Type: GrantFiled: August 15, 2001Date of Patent: July 6, 2004Assignee: New Lake International LimitedInventor: Fergus Rupert Fitzgerald
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Patent number: 6753365Abstract: A composition useful in the manufacturing of plastic cookware includes a polyetherimide resin and an acidic additive selected from the group consisting of aliphatic carboxylic acids having a vapor pressure less than one atmosphere at 300° C., aromatic carboxylic acids having a vapor pressure less than one atmosphere at 300° C., and combinations comprising at least one of the foregoing acidic additives. In one embodiment, the composition further comprises an additional resin, such as a polyester resin. The acidic additive is effective in improving the mold release and increasing the melt flow of the composition. Articles including the composition and a method for preparing the composition are also described.Type: GrantFiled: February 19, 2002Date of Patent: June 22, 2004Assignee: General Electric CompanyInventors: Sterling Bruce Brown, Jennifer L. David, Robert Russell Gallucci, Yimin Jin, Martin J. Lindway
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Patent number: 6723772Abstract: The present invention provides a resin composition comprising 100 parts by weight of a methyl methacrylate resin or styrene resin, about 0.1 to about 20 parts by weight of a light diffusing agent, about 0.0005 to about 0.1 parts by weight of an ultraviolet absorber selected from the group consisting of 2-(1-arylalkylidene) malonates and oxalanilides, and about 0.0001 to about 0.01 parts by weight of a phosphor. This resin composition is used as a material of a light diffusing member showing excellent light diffusible transmittance, having excellent durability and manifesting suppressed yellowing of transmitted light. Further, a laminated plate obtained using this resin composition is suitably used as a lighting cover, light diffusing plate for liquid crystal displays, illumination sign board or the like for which light transmittance and light diffusing property are required and durability is desired.Type: GrantFiled: July 9, 2002Date of Patent: April 20, 2004Assignee: Sumitomo Chemical Company, LimitedInventor: Tomohiro Maekawa
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Patent number: 6703436Abstract: The present invention relates to a plasticizer composition, and more particularly a plasticizer composition comprising neopentylglycol ester capable of being using as plasticizer of polyvinyl chloride resin, and method of prepation thereof. The plasticizer composition of the present invention can prepare polyvinyl chloride resin having superior tensile strength, elongation, static heat resistance, and viscosity stability etc.Type: GrantFiled: October 23, 2002Date of Patent: March 9, 2004Assignee: LG Chem, Ltd.Inventors: Kye-Seok Lee, Kyu-Il Lee, Hyun-Kyu Kim
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Patent number: 6696508Abstract: A thickener for textile printing which is a polymer dispersion and includes at least one polymer selected from the group consisting of (A) at least one polymer derived from monomers having an ethylenically unsaturated double bond, (B) at least one ethylenically unsaturated carboxylic acid ester, (C) at least one ethylenically unsaturated carboxylic acid anhydride, and (D) at least one ethylenically unsaturated carboxylic acid amide; and a synthetic carrier medium comprised of at least one biodegradable component which may have varying respective biodegradabilities and which is selected from the group consisting of at least one ester which is at least one of an ester of synthetic origin and an ester of natural origin and which is liquid at room temperature and below.Type: GrantFiled: May 24, 2001Date of Patent: February 24, 2004Assignee: CHT R Beitlich GmbHInventors: Kurt Willmer, Thomas Fischer
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Publication number: 20040010086Abstract: The present invention provides a TPO blend that exhibits surprisingly excellent low temperature impact resistance. The TPO blend according to the invention includes a polyolefin, a metallocene catalyzed olefinic copolymer plastomer and a lubricant package. The lubricant package includes a mixture of an internal lubricant and an external lubricant. In the preferred embodiment of the invention the polyolefin is polypropylene, the metallocene catalyzed olefinic copolymer is a metallocene catalyzed low density ethylene-octene copolymer, and the lubricant package includes a blend of ethylene bis-stearamide wax as an external lubricant and calcium stearate wax as an internal lubricant. The TPO blend according to the invention also preferably comprises optional antioxidants, UV stabilizers, and colorants.Type: ApplicationFiled: July 12, 2002Publication date: January 15, 2004Inventors: Deenadayalu Chundury, Roy C. Sanford, Matthew R. Powell, Larry N. Trotter
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Patent number: 6677484Abstract: Powder comprising substantially spherical particles of at least one compound selected from the group consisting of azelaic acid, sebacic acid, undecanedioic acid, dodecanedioic acid, brassylic acid, and the anhydrides of said acids, said at least one compound being distributed substantially uniformly throughout the entirety of each of said particles, said particles having a particle size distribution as follows: d90 - d10 d50 < 1.90 wherein: d50 is a particle diameter at which 50% of the particles have diameters which are greater or smaller than the d50 value; d90 is a particle diameter at which 90% of the particles have diameters which are smaller than the d90 value; d10 is the particle diameter at which 10% of the particles have diameters which are smaller than the d10 value; and d50 is 8 to 30 micrometers.Type: GrantFiled: July 31, 2000Date of Patent: January 13, 2004Assignee: E. I. du Pont de Nemours and CompanyInventors: Ronald Lee Amey, George Alan Schurr
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Patent number: 6646100Abstract: Aliphatic polycarbonate homo- and co-polymers are obtained by ring-opening homo- or co-polymerization of cyclic carbonates by DMC catalysis. These polymers are useful in the production of polyurethanes.Type: GrantFiled: July 30, 2002Date of Patent: November 11, 2003Assignee: Bayer AktiengesellschaftInventors: Jörg Hofmann, Walter Schäfer, Christian Steinlein
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Patent number: 6642286Abstract: There is provided a resin composition for soft relining material that can meet the performances required in a soft relining material for denture base, such as a proper softness and fitness between a denture base and an oral mucosa, without using a phthalate-based plasticizer widely used in the conventional art resin composition for soft relining material, which is pointed out to have a possibility for influencing living bodies as an endocrine disruptor. The soft resin composition for denture base is constructed of (a) a (meth)acrylate monomer having at least one unsaturated double bond; (b) an aliphatic acid ester-based plasticizer; (c) a (meth)acrylate polymer or copolymer; and (d) a polymerization initiator.Type: GrantFiled: September 10, 2001Date of Patent: November 4, 2003Assignee: GC CorporationInventors: Mizuki Nakayama, Tomohiro Kumagai, Toshihiro Sekiguchi
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Patent number: 6635702Abstract: A stable, aqueous composition containing a substantially crosslinked alkali-swellable acrylate copolymer rheology modifier, a surfactant, an alkaline material, and various compounds therein, as for example substantially insoluble materials requiring suspension or stabilization, such as a silicone, an oily material, or a pearlescent material. Additionally, this invention also relates to the formation of a rheologically and phase stable cationic hair dye composition. The invention further relates to the incorporation of an acidic material after the addition of an alkaline material to reduce the pH of the composition without negatively impacting the viscosity of the composition.Type: GrantFiled: April 11, 2000Date of Patent: October 21, 2003Assignee: Noveon IP Holdings Corp.Inventors: Julie F. Schmucker-Castner, Hal Ambuter, Marcia Snyder, Ashley A. Weaver, Sahira Kotian
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Publication number: 20030191224Abstract: An organically modified layered clay ionically bonded with an organic compound having an ammonium group and an amino group, an organic polymer composition containing the same and an organic polymer capable of reacting with the amino group, and an inner liner using the same.Type: ApplicationFiled: March 26, 2003Publication date: October 9, 2003Inventors: Tsukasa Maruyama, Kazunori Ishikawa, Naoya Amino, Masahiro Ikawa
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Patent number: 6583199Abstract: An improved material for use in resilient conforming pads, cushions, impact resistance padding and the like is described. The material comprises hollow coated micro particles cohered to a mass by a combination of a carboxylic acid bonding agent and a hydrophobic fluid. The material is useful for providing low weight contour conforming resilient padding for garments, athletic equipment, prosthetic devices, surgical or vehicular cushions, positioning devices, mattresses impact protective padding and the like.Type: GrantFiled: October 3, 2001Date of Patent: June 24, 2003Assignee: I-TEK, Inc.Inventors: Theodore B. Brother, Edward J. Ellis
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Publication number: 20030088003Abstract: The present invention relates to thermoplastic hydrophilic polymeric compositions for making a liquid impermeable moisture vapour permeable structure, for example by forming the composition into a layer or film. The thermoplastic compositions comprise preferred thermoplastic polymers and suitable compatible plasticisers which allow a controlled extraction/release by water or aqueous fluids. The layers made from the thermoplastic hydrophilic polymeric compositions of the present invention can find a variety of applications wherein liquid imperviousness and moisture vapour permeability are desirable.Type: ApplicationFiled: December 12, 2002Publication date: May 8, 2003Applicant: The Procter & Gamble CompanyInventors: Italo Corzani, Elisabetta Russo
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Patent number: 6518345Abstract: A fire extinguishing composition is provided which, when compared with conventional fire extinguishing compositions, displays superior rapid fire extinguishing performance, flame resistance, fuel resistance and reignition prevention for both non-polar solvent fires and polar solvent fires, and also displays superior stability as a diluted solution. The fire extinguishing composition comprises a cationic polyamine based high molecular weight compound (A) which incorporates primary, secondary, and tertiary cationic groups within each molecule, and the primary cationic groups account for no more than 40% by weight of all the cationic groups.Type: GrantFiled: July 11, 2001Date of Patent: February 11, 2003Assignee: Dainippon Ink and Chemicals, Inc.Inventors: Kazunori Tanaka, Kenji Nagao, Yutaka Hashimoto
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Patent number: 6515058Abstract: Polyamide resin pellets which comprise: 100 parts by weight of a polyamide resin; from 0.01 to 1.0 part by weight of lubricant A, which comprises at least one ester of a higher aliphatic carboxylic acid with a higher alcohol; and from 0.01 to 1.0 part by weight of lubricant B. which comprises at least one higher aliphatic carboxylic acid metal salt, wherein lubricant A is present inside the pellets. Also disclosed are the polyamide resin pellets further comprising lubricant C, which comprises a higher aliphatic carboxylic acid amide.Type: GrantFiled: August 9, 2000Date of Patent: February 4, 2003Assignee: Asahi Kasei Kogyo Kabushiki KaishaInventors: Hiroshi Tomiyama, Shinya Matsumoto
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Patent number: 6509096Abstract: The present invention relates to a process for producing single-coat or multicoat clearcoat finishes on primed or unprimed substrates by applying at least one powder coating dispersion, in particular a powder clearcoat slurry, to the substrate and then curing the resulting film(s) thermally and/or with actinic radiation, in which at least one polyvalent inorganic acid and/or oxalic acid are or is added to at least one powder coating dispersion, in particular to a powder clearcoat slurry.Type: GrantFiled: October 16, 2001Date of Patent: January 21, 2003Assignee: BASF Coatings ACInventors: Günther Ott, Joachim Woltering, Wilfried Stübbe, Ulrike Röckrath, Maximilian Bendix, Ulrich Kalck, Jan Berg, Götz-Ekkehard Sapper
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Patent number: 6500880Abstract: The ink set of this invention comprises at least two inks, one of which contains a pH sensitive polymer and pigment colorant with dispersant. A second ink is provided which comprises incompatible inorganic or organic salts or has an appropriate pH. The polymer precipitates onto a medium upon contact with the second ink, thereby providing improved bleed control.Type: GrantFiled: October 26, 2000Date of Patent: December 31, 2002Assignee: Hewlett-Packard ComapnyInventor: Dennis P. Parazak
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Patent number: 6500895Abstract: A thermoplastic composition comprising a poly(arylene ether), a polyamide, a compatibilizing agent, and a polyester ionomer exhibits reduced moisture absorption, improved paint adhesion, and improved stability. Use of the polyester ionomer allows use of lower amounts of conductive fillers. The compositions of the present invention comprise an amount of a stabilizer package effective to enhance the morphological stability of the thermoplastic composition wherein the stabilizer package comprises at least one phenolic species in combination with at one thioester species, at least one one organo-phosphite species, or at least one thioester species in combination with at least one organo-phosphite species.Type: GrantFiled: November 9, 2000Date of Patent: December 31, 2002Assignee: General Electric CompanyInventors: Jozef H. P. Bastiaens, Alessio Carminati
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Patent number: 6500881Abstract: The invention concerns a flame-proofed polyamide composition to be used in particular for making moulded objects. The composition comprises a flame-proofing system consisting of a melamine derivative and a mineral filler consisting of calcined kaolin and is particularly useful for making moulded electrical objects.Type: GrantFiled: October 10, 2000Date of Patent: December 31, 2002Assignee: Rhodia Engineering Plastics S.r.l.Inventors: Daniele Galli, Franco Speroni
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Patent number: 6469080Abstract: The present invention provides a water-absorbent resin composition which contains an aminoacetic chelating agent and is excellent in the urine resistance, wherein the water-absorbent resin composition is excellent further in the light resistance and becomes little colored and might have deodorizability. A water-absorbent resin composition, which comprises a water-absorbent resin and an aminoacetic chelating agent, wherein the mixing ratio of the aminoacetic chelating agent in the water-absorbent resin composition is not less than 10 ppm of the water-absorbent resin, and wherein the total content of nitrilotriacetic acid and its salt in the water-absorbent resin composition is not more than 1 ppm of the water-absorbent resin composition.Type: GrantFiled: December 12, 2000Date of Patent: October 22, 2002Assignee: Nippon Shokubai Co., Ltd.Inventors: Koji Miyake, Shinichi Fujino, Masatoshi Nakamura, Katsuyuki Wada
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Publication number: 20020128373Abstract: Disclosed is an electrically conductive polyamide resin composition, which is advantageous in light of very excellent flexibility and flowability, suitable for use in extrusion and injection components for motor vehicles requiring impact resistance and electroconductivity. The polyamide resin composition comprises (a) 40-70% by weight of semi-crystalline polyamide resin, (b) 15-40% by weight of thermoplastic elastomer grafted with 0.5-2.0% by weight of maleic anhydride, (c) 9-20% by weight of carbon black powder, (d) 1-10% by weight of sulfonamide based material, and (e) 0.001-0.02% by weight of dicarboxyl based material.Type: ApplicationFiled: December 19, 2001Publication date: September 12, 2002Inventor: Soo-Chul Park
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Patent number: 6429242Abstract: Solvent weld cement (SWC) is used to fuse polymer pipes together. SWC is conventionally dispensed in liquid form from an open container by a swab or brush, resulting in release of fumes, oxidation and contamination of the SWC, as well as environmental contamination due to spilled SWC. A SWC is provided which remains stable while being stored in and dispensed from an aerosol container. The SWC composition comprises a polymer resin, CPVC, a solvent system including tetrahydrofuran, and at least one conventional propellant to allow the SWC to be dispensed from an aerosol container. The resulting SWC remains stable during storage, and when dispensed from the aerosol can provides a SWC with improved uniformity of application, ease of application, greater set-up time, and a SWC which is environmentally friendly.Type: GrantFiled: October 12, 2000Date of Patent: August 6, 2002Assignee: Camie-Campbell, Inc.Inventors: Robert J. Macher, Allen L. Smith
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Patent number: 6423768Abstract: This invention relates to polymer-organoclay composite compositions comprising an thermoplastic organic polymer bearing amine groups, an organoclay containing quaternary ammonium ions incorporating at least two alkyl or cycloalkyl groups; and optionally one or more additional thermoplastic polymers, impact modifying agents and compatibilizing agents. The performance characteristics of the polymer-organoclay composite compositions are found to be closely linked to the structure of the ammonium cation present in the organoclay used. The compositions are suitable for use in the manufacture of molded articles.Type: GrantFiled: July 31, 2000Date of Patent: July 23, 2002Assignee: General Electric CompanyInventor: Farid Fouad Khouri
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Patent number: 6423767Abstract: A) at least one polycarbonate, B) at least one graft polymer based on an elastomer having a glass transition point below 10° C., C) at least one copolymer containing vinylaromatic monomers, D) at least one filler, E) at least one low molecular weight halogen-free acid and, if desired, additionally F) at least one polyalkyl acrylate and G) at least one flame retardant and H) at least one additive, and which are characterized by the fact that they contain I) at least one aromatic or partially aromatic polyester or a mixture thereof. Shaped articles, films or fibers, particularly external autobody parts, made of said molding compositions.Type: GrantFiled: May 31, 2000Date of Patent: July 23, 2002Assignee: BASF AktiengesellschaftInventors: Martin Weber, Thomas Fritzsche, Manfred Knoll, Xaver Hopfenspirger
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Publication number: 20020061949Abstract: Flame retardant polyurethane compositions comprising ethylenebistetrabromophthalimide and/or tris(2,3-dibromopropyl)isocyanurate as fire retardant component.Type: ApplicationFiled: September 28, 2001Publication date: May 23, 2002Inventors: Yongxia Wang, James W. Nowicki
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Publication number: 20020042462Abstract: An additive for a rubber composition consists essentially of an ester of (i) an aliphatic polyvalent carboxylic acid with (iii) a (poly)oxyalkylene derivative, and having at least one carboxyl group in its molecule, or an ester of (ii) an aromatic polyvalent carboxylic acid with (iii) a (poly)oxyalkylene derivative, and having at least one carboxyl group bonded to an aromatic ring in its molecule. And also, it relates to an additive composition, a rubber composition and a pneumatic tire using such an additive for a rubber composition.Type: ApplicationFiled: August 8, 2001Publication date: April 11, 2002Applicant: BRIDGESTONE CORPORATIONInventors: Daisuke Nohara, Jingo Shirasaka, Isao Nishi, Masaaki Tsuchihashi, Tetsuo Takano
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Publication number: 20020035183Abstract: An inorganic particle-containing composition comprising:Type: ApplicationFiled: November 19, 2001Publication date: March 21, 2002Applicant: JSR CORPORATIONInventors: Takanori Yamashita, Kenji Okamoto, Jiro Takahashi, Tadahiko Udagawa
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Publication number: 20010053807Abstract: The present invention provides a water-absorbent resin composition which contains an aminoacetic chelating agent and is excellent in the urine resistance, wherein the water-absorbent resin composition is excellent further in the light resistance and becomes little colored and might have deodorizability. A water-absorbent resin composition, which comprises a water-absorbent resin and an aminoacetic chelating agent, wherein the mixing ratio of the aminoacetic chelating agent in the water-absorbent resin composition is not less than 10 ppm of the water-absorbent resin, and wherein the total content of nitrilotriacetic acid and its salt in the water-absorbent resin composition is not more than 1 ppm of the water-absorbent resin composition.Type: ApplicationFiled: December 12, 2000Publication date: December 20, 2001Inventors: Koji Miyake, Shinichi Fujino, Masatoshi Nakamura, Katsuyuki Wada
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Patent number: 6316534Abstract: A lubricative resin composition and a slide bearing made from such a resin. Even after a long-time slide movement, the friction coefficient is kept stably low and the wear is small. Moldability is also good. The lubricative resin composition is made up of 80-99.5 wt % of a synthetic resin which is either a mixture of 30-95 wt % of a polyamide resin and 5-70 wt % of a polyolefin, or a polyamide resin, and 0.5-20 wt % of a fatty acid having a carbon number of 10 or over and a melting point of 30° C. or under, such as montanic acid or stearic acid. A slide bearing is made from such a resin composition. Such slide bearings are used to support rotary shafts in a developing device for developing static latent images.Type: GrantFiled: September 22, 1998Date of Patent: November 13, 2001Assignee: NTN CorporationInventors: Takumi Shimokusuzono, Masaki Egami
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Patent number: 6313202Abstract: This invention relates to a blend comprising (a) about 2% to about 98% by weight of at least one ester of cellulose comprising an alkanoyl chain having from about 1 to about 10 carbon atoms, and having at a D.S. of about 2.3 to about 3.0, and an inherent viscosity of about 0.2 to about 3.0 deciliters/gram as measured at a temperature of 25° C. for a 0.5 g sample in 100 ml of a 60/40 parts by weight solution of phenol/tetrachloroethane, and (b) about 98% to about 2% by weight of at least one ester of cellulose comprising an alkanoyl chain having from about 1 to about 10 carbon atoms, and having a D.S. of about 1.5 to about 2.2, and an inherent viscosity of about 0.2 to about 3.0 deciliters/gram as measured at a temperature of 25° C. for a 0.5 g sample in 100 ml of a 60/40 parts by weight solution of phenol/tetrachloroethane, said percentages being based on the weight of component (a) plus component (b).Type: GrantFiled: May 28, 1993Date of Patent: November 6, 2001Assignee: Eastman Chemical CompanyInventors: Charles M. Buchanan, Robert M. Gardner, Alan W. White, Matthew D. Wood
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Publication number: 20010031812Abstract: A colored, transparent film-forming composition, which comprises (a) a reaction product of an epoxy group-containing alkoxysilane (a-1) and an amino group-containing alkoxysilane (a-2) having active hydrogen therein, (b) an acid catalyst, (c) an alkali-soluble UV absorber, (d) at least one solvent selected from organic solvents having a boiling point of 100 to 250° C., and (e) a dye and/or a pigment, has a good coating performance, a good room temperature curing characteristic and can provide a film having good film strength and good film removability after use. The coating method of the composition and the removing method of the film obtained from the composition are also described.Type: ApplicationFiled: January 16, 2001Publication date: October 18, 2001Inventors: Kunio Arimoto, Chihito Tago, Hideo Nishida, Yasuhiro Maehara, Tatsuya Ohta, Kazutoshi Yoshihara, Satoshi Sawamura
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Publication number: 20010021733Abstract: The invention relates to a new process for preparing polymer dispersions. According to the invention, a mixture is first formed of a polymer component, a plasticizer, dispersion auxiliaries and water, the mixture is then heated to approximately 20 to 100° C. in order to form a paste-like composition, and the paste-like composition is dispersed in water. The dispersion obtained according to the invention can be used for coating paper or board, as a primer, as a component in adhesives, paint or lacquer, and it is also suited for the manufacture of cast films and for use as a binder in materials based on cellulosic fibers.Type: ApplicationFiled: May 2, 2001Publication date: September 13, 2001Applicant: Valtion teknillinen tutkimuskeskusInventors: Soili Peltonen, Maija Elina Heikkila, Hannu Mikkonen, Jouni Hamara
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Patent number: 6274658Abstract: An addition-curable silicone rubber composition comprising (A) an organopolysiloxane containing in one molecule at least two alkenyl groups bonded to silicon atoms, (B) an organohydrogenpolysiloxane containing in one molecule at least two hydrogen atoms bonded to silicon atoms, (C) a platinum catalyst and (D) a (meth)acrylate compound having a melting point of 40° C. or above. This composition has both a good storage stability and a rapid-curing performance in a well balanced state, and hence has a high workability and contributes to an improvement in productivity.Type: GrantFiled: November 30, 1999Date of Patent: August 14, 2001Assignee: Shin-Etsu Chemical Co., Ltd.Inventor: Hiroyasu Hara
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Patent number: 6258888Abstract: Aqueous emulsion of an organic polymeric material (preferably olefinic), said polymeric material comprising: 1) a hydrophobic polymer part which has a polymodal particle size distribution, and 2) an oligomer part bearing acid groups which imparts or is capable of imparting reversibility to the polymeric material of the emulsion, this being realized, if necessary, by sufficient of the acid groups being in ionised form. lonisation is usually achieved by raising pH to ≧7 (neutralizing). The polymer emulsion is particularly useful for inks and overprint lacquer formulations, and for paint formulations.Type: GrantFiled: April 20, 1998Date of Patent: July 10, 2001Assignee: Zeneca Resins BVInventors: Antonius Carolus Ida Adrianus Peters, Gerardus Cornelis Overbeek
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Patent number: 6225388Abstract: A thermoplastic composition that comprises a unreacted mixture of an aliphatic polyester polymer selected from the group consisting of a polybutylene succinate polymer, a polybutylene succinate-co-adipate polymer, a polycaprolactone polymer, a mixture of such polymers, or a copolymer of such polymers; a multicarboxylic acid; and a wetting agent. The thermoplastic composition is capable of being extruded into fibers that may be formed into nonwoven structures that may be used in a disposable absorbent product intended for the absorption of fluids such as body fluids.Type: GrantFiled: August 31, 1998Date of Patent: May 1, 2001Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Fu-Jya Tsai, Brigitte C. Wertheim
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Patent number: 6214459Abstract: An inkable sheet comprises a substrate having on at least one surface thereof an ink absorbent layer comprising a cellulose material and an acid functional resin which is insoluble in water of neutral or acidic pH at room temperature. The acid functional resin may comprise an acid functional polyurethane resin or an acid functional acrylic resin such as a polyacrylate/acrylic acid copolymer. The ink absorbent layer preferably further comprises a weak organic acid or salt thereof and/or at least one crosslinking agent.Type: GrantFiled: September 24, 1999Date of Patent: April 10, 2001Assignee: Imperial Chemical Industries PLCInventors: Nicholas C. Beck, Gary W. Morrison
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Patent number: 6197860Abstract: A biodisintegratable nonwoven material having improved fluid management properties. The nonwoven material may be produced using a thermoplastic composition that comprises a unreacted mixture of an aliphatic polyester polymer selected from the group consisting of a polybutylene succinate polymer, a polybutylene succinate-co-adipate polymer, a polycaprolactone polymer, a mixture of such polymers, or a copolymer of such polymers; a multicarboxylic acid; and a wetting agent. The thermoplastic composition exhibits substantial biodegradable properties yet is easily processed. The biodisintegratable nonwoven materials may be used in a disposable absorbent product intended for the absorption of fluids such as body fluids.Type: GrantFiled: November 9, 1999Date of Patent: March 6, 2001Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Fu-Jya Daniel Tsai, Brigitte C. Wertheim
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Patent number: 6191229Abstract: The present invention provides (meth)acryl syrup which shows excellent storage stability as a molding material, and also provides a method of manufacturing the (meth)acryl syrup in a shorter period of time compared with the conventional method, and a molding material which permits a molded article having excellent heat-resistance, solvent-resistance, weathering resistance, and water-resistance, etc., to be manufactured. The (meth)acryl syrup is manufactured, for example, by polymerizing a monomer component including (meth)acrylic ester and a vinyl monomer having a carboxyl group in a presence of a thiol compound, and subsequently processing the reaction mixture with maleic anhydride and a basic compound. The molding material includes the (meth)acryl syrup, and may also include a thickening agent, derivatives of succinic acid, a reinforcing material, etc.Type: GrantFiled: June 4, 1997Date of Patent: February 20, 2001Assignee: Nippon Shokubai Co., Ltd.Inventors: Masazumi Sasabe, Akihiko Fukada, Keiichiro Mizuta
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Patent number: 6156834Abstract: The present invention provides a polyacetal resin composition improved, when molded, in environmental stress cracking resistance and in the physical properties of the weld portion. Environmental stress cracking resistance and physical properties of the weld portion before a heat aging resistance test can be improved by adding, to 100 parts by weight of a polyacetal resin, 0.001 to 1.0 part by weight of a difatty acid alkaline earth metal salt produced using two or more kinds of fatty acid and an alkaline earth metal. Also, the physical properties of the weld portion after a heat aging resistance test can be improved by further adding particular fatty acid ester compounds.Type: GrantFiled: March 17, 1999Date of Patent: December 5, 2000Assignee: Asahi Kasei Kogyo Kabushiki KaishaInventors: Toshiharu Seyama, Mikio Oka, Makoto Doki
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Patent number: H1987Abstract: The use of a specified molecular weight range of poly(alkylene ether)s, such as poly(ethylene glycol) (PEG), poly(tetramethylene glycol) (PTMG), and poly(propylene glycol) (PPG), and end-capped poly(alkylene ether)s, as plasticizers for polyesters such as poly(ethylene terephthalate) (PET), poly(propylene terephthalate) (PPT), poly(butylene terephthalate) (PBT), poly(ethylene naphthalate) (PEN), and poly(1,4-cyclohexanedimethylene terephthalate) (PCT), that are non-volatile during drying processes as well as during melt processing. Such poly(alkylene ether)s and end-capped poly(alkylene ether)s decrease the melt viscosity of the polymer matrix and depress the glass transition temperature, and thereby improve the processability of polyesters.Type: GrantFiled: April 22, 1999Date of Patent: August 7, 2001Assignee: Eastman Chemical CompanyInventors: Andrew E. Brink, Bruce C. Bell, Gerald T. Keep