Patents Assigned to Noveon IP Holdings Corp.
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Patent number: 6762267Abstract: The present invention pertains to a method for forming polyacrylic acid granules and granules formed therefrom wherein the granules are flowable, have an increased bulk density relative to the as polymerized polyacrylic acids, and a low amount of dust which is generally characterized herein as particles which pass through a 325 mesh screen. The granules formed by the method of the present invention can be used to prepare controlled release tablets, especially controlled release pharmaceutical tablets. The controlled release properties of the tablets formed from granules prepared according to the present invention are unexpectedly better than tablets prepared from granules formed by other known granulation methods.Type: GrantFiled: March 31, 2003Date of Patent: July 13, 2004Assignee: Noveon IP Holdings Corp.Inventors: Daniel James Adams, David William Weaver, William R. Wilber, Jian-Hwa Guo, Edward S. Greenberg
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Patent number: 6740410Abstract: The present invention relates to a thermoplastic, multi-layer, electrostatic discharging, laminate comprised of at least one outer layer that is permanent static dissipative and non-contaminating, and a core or base layer that is conductive. The outer layer has a surface resistivity of from about 1.0×105 to about 1.0×1012 Ohm/sq, and the core layer has a surface resistivity of from about 1.0×101 to about 1.0×1011 Ohm/sq.Type: GrantFiled: April 19, 2002Date of Patent: May 25, 2004Assignee: Noveon IP Holdings Corp.Inventors: Timothy Edward Fahey, James Minor Ludlow, III, Kyung J. Kim
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Patent number: 6734273Abstract: Thermoplastic polyurethane compositions are prepared from polyols having high secondary hydroxyl content, diisocyanates, chain extenders and catalysts. The resulting polyurethanes have high molecular weight and can be prepared by a one-shot process wherein the reactants and any additional desired components are brought together and reacted simultaneously or substantially simultaneously.Type: GrantFiled: February 12, 2001Date of Patent: May 11, 2004Assignee: Noveon IP Holdings Corp.Inventor: Kemal Onder
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Publication number: 20040087668Abstract: 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: ApplicationFiled: June 23, 2003Publication date: May 6, 2004Applicant: Noveon IP Holdings Corp.Inventors: Julie F. Schmucker-Castner, Hal Ambuter, Marcia Snyder, Ashley A. Weaver, Sahira Kotian
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Patent number: 6723781Abstract: A blend of one or more crosslinked polymers or copolymers prepared from an olefinically unsaturated polymerizable carboxylic or anhydride monomer and at least one high molecular weight essentially linear polymer prepared from an olefinically unsaturated polymerizable carboxylic acid monomer. The blend is neutralized to typically a low pH, and generally contains a noncovalent, e.g. ionic, crosslinking agent, and a cure rate modifier. The hydrogel blend is capable of containing a large amount of water, has good tack, good adhesion, and can be utilized as an application vehicle having a backing thereon as well as containing various substances such as personal care compounds, pharmaceuticals, active ingredients, and the like. Conversely, the hydrogel blend can be dried and subsequently wetted without substantial loss of properties.Type: GrantFiled: August 29, 2000Date of Patent: April 20, 2004Assignee: Noveon IP Holdings Corp.Inventors: Dean M. Frate, Jian-Hwa Guo
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Publication number: 20030233006Abstract: A s,s′-bis-(&agr;,&agr;′-disubstituted-&agr;″-acetic acid)-trithiocarbonate and derivatives thereof can be used as an initiator, chain transfer agent, or terminator for polymerization of monomers such as free radical polymerizable monomers. Homopolymers, copolymers, and the like as well as block copolymers can be made utilizing the trithio carbonate compound such as in a living free radical polymerization as well as to form telechelic polymers.Type: ApplicationFiled: May 5, 2003Publication date: December 18, 2003Applicant: Noveon IP Holdings Corp.Inventor: John T. Lai
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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: 20030187167Abstract: The present invention pertains to a method for forming polyacrylic acid granules and granules formed therefrom wherein the granules are flowable, have an increased bulk density relative to the as polymerized polyacrylic acids, and a low amount of dust which is generally characterized herein as particles which pass through a 325 mesh screen. The granules formed by the method of the present invention can be used to prepare controlled release tablets, especially controlled release pharmaceutical tablets. The controlled release properties of the tablets formed from granules prepared according to the present invention are unexpectedly better than tablets prepared from granules formed by other known granulation methods.Type: ApplicationFiled: March 31, 2003Publication date: October 2, 2003Applicant: Noveon IP Holdings Corp.Inventors: Daniel James Adams, David William Weaver, William R. Wilber, Jian-Hwa Guo, Edward S. Greenberg
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Patent number: 6623756Abstract: Solid dosage articles such as pharmaceutical tablets for the controlled release of a desired compound such as an active ingredient are directly compressed from a flowable, compressible mixture of the active ingredient, a slightly cross-linked rheology modifying polymer or copolymer, and one or more excipients. The rheology modifying polymer or copolymer is a granulated powder of suitable particle size and is generally made from one or more unsaturated (di)carboxylic acids, half ester thereof, and other optional monomers.Type: GrantFiled: April 27, 2000Date of Patent: September 23, 2003Assignee: Noveon IP Holdings Corp.Inventors: William R. Wilber, Jian-Hwa Guo, Edward S. Greenberg
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Patent number: 6623754Abstract: A directly-compressed, controlled release tablet contains N-acetyl cysteine as the active ingredient.Type: GrantFiled: May 21, 2001Date of Patent: September 23, 2003Assignee: Noveon IP Holdings Corp.Inventors: Jian-Hwa Guo, William Robert Wilber
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Publication number: 20030166752Abstract: The present invention relates to a halogen containing polymer compound containing a modified zeolite stabilizer. The modified zeolite stabilizer has a small particle diameter, narrow particle size distribution and less than 10 weight percent water. The modified zeolite stabilizer is formed by shock annealing, coating or a combination of the two methods.Type: ApplicationFiled: March 7, 2003Publication date: September 4, 2003Applicant: Noveon IP Holdings Corp.Inventors: Robert E. Detterman, Nancy A. Hamerly, Carole A. Lepilleur, Anthony M. Mazany, David L. Milenius, Arthur L. Backman
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Publication number: 20030157321Abstract: Plastic pipes, fittings and other piping appurtenances prepared from CPVC formulations meeting requirements of ASTM-D 1784, cell class 23448-B, yet exhibiting suitable processability.Type: ApplicationFiled: January 24, 2003Publication date: August 21, 2003Applicant: Noveon IP Holdings Corp.Inventors: Girish T. Dalal, Thomas H. Forsyth, Scott L. Cuson
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Publication number: 20030139509Abstract: A thermoplastic polyurethane composition having a high crystalline content which advantageously can be processed in an extruder. The composition includes a crystallization retarding component of a short chain or monomeric diol which is branched, substituted or contains heteroatoms, or a combination thereof. The crystallization retarding component delays the onset of crystallization during extrusion processing until the composition has exited the extruder.Type: ApplicationFiled: December 21, 2001Publication date: July 24, 2003Applicant: Noveon IP Holdings Corp.Inventor: Kemal Onder
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Patent number: 6596844Abstract: The present invention pertains to a method for forming poly-acrylic acid granules and granules formed therefrom wherein the granules are flowable, have an increased bulk density relative to the as polymerized polyacrylic acids, and a low amount of dust which is generally characterized herein as particles which pass through a 325 mesh screen. The granules formed by the method of the present invention can be used to prepare controlled release tablets, especially controlled release pharmaceutical tablets. The controlled release properties of the tablets formed from granules prepared according to the present invention are unexpectedly better than tablets prepared from granules formed by other known granulation methods.Type: GrantFiled: December 20, 2001Date of Patent: July 22, 2003Assignee: Noveon IP Holdings Corp.Inventors: Daniel James Adams, David William Weaver
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Patent number: 6596899Abstract: A s,s′-bis-(&agr;,&agr;′-disubstituted-&agr;″-acetic acid)-trithiocarbonatte and derivatives thereof can be used as an initiator, chain transfer agent, or terminator for polymerization of monomers such as free radical polymerizable monomers. Homopolymers, copolymers, and the like as well as block copolymers can be made utilizing the trithio carbonate compound such as in a living free radical polymerization as well as to form telechelic polymers.Type: GrantFiled: February 16, 2000Date of Patent: July 22, 2003Assignee: Noveon IP Holdings Corp.Inventor: John T. Lai
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Patent number: 6576702Abstract: Waterborne polyurethane dispersions are prepared by reacting (1) at least one polyisocyanate; (2) at least one active hydrogen containing compound, such as a polyol or a polyamide; and (3) preferably also at least one water-dispersability enhancing compound having water-dispersion enhancing groups, in order to form an isocyanate terminated prepolymer. The prepolymer subsequently is (1) optionally neutralized by reaction with at least one neutralizing agent, (2) dispersed in water, and then (3) chain extended by reaction with at least one of water, inorganic or organic polyamine having an average of about 2 or more primary and/or secondary amine groups, or combinations thereof. At least one plasticizer is introduced into the reaction mixture at any time during prepolymer formation or before the prepolymer is dispersed in water. The plasitcizer substantially or completely replaces other organic diluents or solvents. Various types of plasticizers may be employed, including reactive plasticizers.Type: GrantFiled: July 18, 2001Date of Patent: June 10, 2003Assignee: Noveon IP Holdings Corp.Inventors: Gary A. Anderle, Susan L. Lenhard, Alexander V. Lubnin, George E. Snow, Krishnan Tamareselvy
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Patent number: 6572889Abstract: A polymer or copolymer composition derived from one or more unsaturated carboxylic acids that is cross-linked and carbamazepine in conjunction with conventional materials such as fillers, excipients, and surface active agents is disclosed. Solid dosage forms of immediate and sustained release tablets containing the polymer or copolymer composition can be formed by wet granulation or wet granulation followed by blending with direct compression ingredients. The polymer or copolymer, as a controlled release agent, can enhance controlled-release properties while meeting acceptable release rates as specified by the USP.Type: GrantFiled: March 7, 2002Date of Patent: June 3, 2003Assignee: Noveon IP Holdings Corp.Inventor: Jian-Hwa Guo
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Patent number: 6531526Abstract: The present invention relates to a halogen containing polymer compound containing a modified zeolite stabilizer. The modified zeolite stabilizer has a small particle diameter, narrow particle size distribution and less than 10 weight percent water. The modified zeolite stabilizer is formed by shock annealing, coating or a combination of the two methods.Type: GrantFiled: March 9, 2000Date of Patent: March 11, 2003Assignee: Noveon IP Holdings Corp.Inventors: Robert E. Detterman, Nancy A. Hamerly, Carole A. Lepilleur, Anthony M. Mazany, David L. Milenius, Arthur L. Backman
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Patent number: 6514535Abstract: This invention relates to A bioadhesive composition comprising two or more essentially excretable, essentially non-degradable polymer backbones, wherein the polymer backbones are crosslinked, said crosslink being degradable in a mammal, said cross-linked bioadhesive composition having an average bioadhesion factor showing bioadhesion equivalent to at least about 100 g s. The concept is to build a hydrogel that demonstrates bioadhesion to a mucosal surface that is crosslinked by a degradable linkage such as disulfide for use inside the body.Type: GrantFiled: May 21, 1999Date of Patent: February 4, 2003Assignee: Noveon IP Holdings Corp.Inventor: Nancy S. Marchant
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Patent number: 6479147Abstract: An emulsion or suspension polymer comprising a vinyl chloride polymeric core and an acrylic ester-acrylonitrile polymeric shell is disclosed. The emulsion polymer is preferably prepared using a two-stage process. In the first stage, a vinyl chloride monomer is polymerized or copolymerized to form a first phase of a polymeric hard core having a relatively high chlorine content. In a second stage, the soft acrylic ester—acrylonitrile copolymer is made in situ in a reaction mixture comprising the first phase. The product provides both flame retardancy and low MFFT, and is useful in a variety of coating and binding applications.Type: GrantFiled: September 17, 2001Date of Patent: November 12, 2002Assignee: Noveon IP Holdings Corp.Inventors: Alexander V. Lubnin, Vic Stanislawezyk