Nitrogen-containing Polycarboxylic Acid Or Nitrogen-containing Polycarboxylic Acid Derivative Patents (Class 528/292)
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Patent number: 7220816Abstract: Coatings for an implantable medical devices such as stents and methods of fabricating thereof are disclosed. The coatings comprise a biologically absorbable poly(ester amide), which is a polymeric product of a reaction between a diol-diamine and a dicarboxylic acid.Type: GrantFiled: December 16, 2003Date of Patent: May 22, 2007Assignee: Advanced Cardiovascular Systems, Inc.Inventors: Stephen D. Pacetti, Jessica R. DesNoyer
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Patent number: 7193020Abstract: A film comprising a resin alloy of a liquid-crystalline polyester, a polyimide and an optional inorganic filler is provided. The film is excellent in heat resistance and dimensional stability.Type: GrantFiled: May 26, 2005Date of Patent: March 20, 2007Assignee: Sumitomo Chemical Company, LimitedInventors: Toyonari Ito, Satoshi Okamoto
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Patent number: 6946088Abstract: The invention relates to a thermosetting coating mass, comprising a carboxyl functional polyester, and/or a carboxyl functional polyacrylate, a ?-hydroxyalkylamide, in which a portion of the hydroxyl groups are chemically blocked and/or fillers and/or heat stabilisers and/or triboadditives and/or further additives, such as, for example, dispersing and degassing agents.Type: GrantFiled: January 29, 2001Date of Patent: September 20, 2005Assignee: EMS-Chemie AGInventors: Andreas Kaplan, Albert Reich
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Patent number: 6933352Abstract: An amphiphilic compound having a dendritic branch structure represented by general formula (I): In the formula (I), R0 is a hydrophilic group; R1 and R2 are independently a hydrophobic group; and n is an integer of 1 to 4. This amphiphilic compound is capable of stably fixing a water-soluble polymer onto a surface structure by taking advantage of intermolecular interaction, thereby enabling the water-soluble polymer to be carried thereon without giving any damage to the function thereof.Type: GrantFiled: February 27, 2002Date of Patent: August 23, 2005Assignee: Japan Science and Technology CorporationInventors: Eishun Tsuchida, Shinji Takeoka, Keitaro Sou, Haruki Ohkawa
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Patent number: 6852421Abstract: In a first aspect, organic coating compositions are provided, particularly spin-on antireflective coating compositions, that contain a polyester resin component. In a further aspect, coating compositions are provided that contain a resin component obtained by polymerization of a multi-hydroxy compound. Coating compositions of the invention are particularly useful employed in combination with an overcoated photoresist layer to manufacture integrated circuits.Type: GrantFiled: September 26, 2002Date of Patent: February 8, 2005Assignee: Shipley Company, L.L.C.Inventors: Gerald B. Wayton, Peter Trefonas, III, Suzanne Coley, Tomoki Kurihara
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Patent number: 6787589Abstract: This application discloses amber colored polyesters suitable for packaging food and beverages. The amber polyester compositions provide excellent blockage of UV and visible light over the wavelength ranges of from about 320-550 nm, rendering them suitable for packaging materials sensitive to ultraviolet and visible light over this wavelength range, particularly beer.Type: GrantFiled: October 31, 2002Date of Patent: September 7, 2004Assignee: Eastman Chemical CompanyInventors: Max Allen Weaver, Marc Alan Strand, Crystal Leigh Kendrick, Gerry Foust Rhodes, Gertrude Williams, Jason Clay Pearson, Timothy Alan Upshaw
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Patent number: 6767479Abstract: Described herein are mixtures of cross-linking agents for the preparation of powder paints wherein the binder consists of polyester resins having free carboxyl groups. The cross-linking mixture itself comprises at least one Beta-hydroxyalkylamide compound having a Beta-hydroxy functional of 4 and at least one compound of formula (II) where R is linear or branched C2-C10 alkyl group having a Beta-hydroxy functionality of 2, wherein said cross-linked mixture has a mean Beta-hydroxy functionality of between 2.1 and 3.9.Type: GrantFiled: March 27, 2002Date of Patent: July 27, 2004Assignee: SIR Industriale S.p.A.Inventors: Pietro Paolo Rossi, Gino Marelli, Alberto Baldini
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Patent number: 6730771Abstract: The invention relates to a condensation polymer, as well as to a process for preparation said polymers, having at least one dialkylamide endgroup connected through the polymer backbone to a unit derived from an alkylamide, the connection comprising at least one ester linkage. The polymer according to the invention can be linear or branched. The condensation polymers can be very widely used in technically different fields, both in thermosetting and in thermoplastic applications. The invention also relates to a composition comprising the condensation polymer according to the invention, an active substance and a polymer, as well as to a process for incorporating an active substance in an object comprising at least of a polymer composition, by bringing the object into contact with the active substance. More in particular, the invention relates to the dying of polymer fibers.Type: GrantFiled: September 25, 2001Date of Patent: May 4, 2004Assignee: DSM N.V.Inventors: Rudolfus A. T. M. Van Benthem, Peter E. Froehling
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Patent number: 6716898Abstract: Disclosed are amber polyester compositions suitable for packaging food and beverages wherein the compositions significantly absorbs light of wavelengths shorter than about 550 nm which is achieved by a combination of several colorants, most of which are copolymerized into the polyester.Type: GrantFiled: May 1, 2002Date of Patent: April 6, 2004Assignee: Eastman Chemical CompanyInventors: Max Allen Weaver, Horst Clauberg, Samuel David Hilbert, Dale Milton Blakely, Sara Stanley Wells
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Patent number: 6677015Abstract: A molding composition of at least 50% by weight of a polyamine-polyamide copolymer obtained from 0.05 to 2.5% by weight of a polyamine having at least 4 nitrogen atoms and having a viscosity of at least 5 000 Pa•s at 250° C. and at a shear rate of 0.1 l/s, and having a viscosity ratio of at least 7 at 250° C., when the melt viscosities at shear rates of 0.1 l/s and 100 l/s are compared with one another, has high melt stiffness and is easy to cut, and performs well in blow molding.Type: GrantFiled: December 19, 2001Date of Patent: January 13, 2004Assignee: Degussa AGInventors: Martin Himmelmann, Wilfried Bartz, Franz-Erich Baumann, Guido Schmitz, Georg Oenbrink, Harald Haeger, Ralf Richter
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Patent number: 6608169Abstract: An antistatic molded resin article based on polyesteramide has a low resistivity even when a substantive amount of electrically conductive additive is not used. The molded article is prepared by copolymerizing (a) a cyclic amide and (b1) cyclic ester or a mixture of cyclic ester (b1) and at least one linear ester (b2) selected from polyesterpolyol, polyesteretherpolyol or polycabonatepolyol. The surface resistivity is less than 1013&OHgr;.Type: GrantFiled: July 11, 2001Date of Patent: August 19, 2003Assignee: DSM N.V.Inventor: Motoji Abe
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Patent number: 6590065Abstract: Polytrimethylene ether ester amide and use thereof.Type: GrantFiled: February 11, 2002Date of Patent: July 8, 2003Assignee: E. I. Du Pont de Nemours and CompanyInventor: Marc B. Goldfinger
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Patent number: 6590061Abstract: Functionalized homopolymers and copolymers of &agr;-amino acids of the general formula 1, wherein X is oxygen or sulphur; R1 could be alkyl, alkenyl, substituted alkyl, aryl or substituted aryl; structure [A]n represents a poly(amino acid) chain based on &agr;-amino acids or their derivatives with protected functional groups, wherein n could be in the range of 1-500; Y is either OH, or a structure of the formula 2, wherein R2 is H or an amino-acid residue, or a structure of the formula 3, wherein Z and Z′ are either NH or O; R3 is a chemical structure selected from alkyls, substituted alkyls, aryls, substituted aryls, or a polymer selected from a group comprising poly(ethylene oxide), poly(propylene oxide) and polybutadiene; P is hydrogen or an acyl group derived from a carboxylic acid selected from the group including alkanoic acids, succinic acid, maleic acid, acrylic acid, phthalic acids and cyclohexane dicarboxylic acids, or it is an acyl selected from a group consisting of compounds accorType: GrantFiled: January 29, 2001Date of Patent: July 8, 2003Assignee: Institute of Macromolecular Chemistry of the Academy of Sciences of the Czech RepublicInventors: Frantisek Rypacek, Milan Dvorak, Dana Kubies, Ludka Machova
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Patent number: 6541110Abstract: The invention relates to a condensation polymer, as well as to a process for preparation said polymers, having at least one dialkylamide endgroup connected through the polymer backbone to a unit derived from an alkylamide, the connection comprising at least one ester linkage. The polymer according to the invention can be linear or branched. The condensation polymers can be very widely used in technically different fields, both in thermosetting and in thermoplastic applications. The invention also relates to a composition comprising the condensation polymer according to the invention, an active substance and a polymer, as well as to a process for incorporating an active substance in an object comprising at least of a polymer composition, by bringing the object into contact with the active substance. More in particular, the invention relates to the dying of polymer fibres.Type: GrantFiled: May 21, 2002Date of Patent: April 1, 2003Assignee: DSM N.V.Inventors: Rudolfus A. T. M. Van Benthem, Peter E. Froehling
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Patent number: 6440573Abstract: Secondary amine-functional silanes comprising at least one ester group and at least one amide group are disclosed. The secondary amine-functional silanes are preparable from relatively inexpensive, commercially available raw ingredients, are stable at room temperature and are reactive toward electrophiles. Also disclosed are silane-terminated polymers, silane-terminated polyurethane dispersions, and moisture-cured polymers derived therefrom.Type: GrantFiled: September 19, 2000Date of Patent: August 27, 2002Assignee: 3M Innovative Properties CompanyInventors: Richard G. Hansen, Dean M. Moren
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Patent number: 6423304Abstract: Blooming and/or syneresis in gel formulations can be reduced or eliminated by adding to an organic mixture an effective amount of a polyamide gelling agent having a softening point of less than about 105° C. wherein the polyamide is the reaction product of one or more diamines, optionally one or more mono-amines, one or more hydrogenated C36 dimer acids, optionally one or more C2-22 dicarboxylic acids, and optionally one or more C2-22 monocarboxylic acids.Type: GrantFiled: June 13, 2001Date of Patent: July 23, 2002Assignee: Cognis CorporationInventors: Shailesh Shah, Sobhy El-Hefnawi, Douglas C. Rhubright
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Publication number: 20020032303Abstract: The present invention provides a p-hydroxybenzoic ester represented by the formula (1) 1Type: ApplicationFiled: August 27, 1999Publication date: March 14, 2002Inventors: HIDEO FUKUDA, YOSHIFUMI FUJITANI, RYUICHI KOHZU
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Patent number: 6348563Abstract: The present invention provides a p-hydroxybenzoic ester represented by the formula (1) wherein R1 represents a C6-C10 straight-chain or branched-chain alkyl group, A1 represents a C2-C4 alkylene group and n in an integer of 1 to 8, a plasticizer for at least one polyamide resin selected from nylon 11 and nylon 12 which comprises the ester, a polyamide resin composition comprising the ester and at least one polyamide resin selected from nylon 11 and nylon 12, and a polyamide resin molded article comprising the ester and having excellent high-temperature volatilization resistance and low-temperature impact resistance.Type: GrantFiled: August 27, 1999Date of Patent: February 19, 2002Assignee: New Japan Chemical Co., Ltd.Inventors: Hideo Fukuda, Yoshifumi Fujitani, Ryuichi Kohzu
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Patent number: 6344535Abstract: Polyether ester amides having high water vapor permeability are disclosed. The amides which are prepared simply and reliably, crystallize quickly, are biodegradable and/or compostable, and are suitable in the manufacture of films by extrusion.Type: GrantFiled: May 18, 2000Date of Patent: February 5, 2002Assignee: Bayer AktiengesellschaftInventors: Ralf Timmermann, Wolfgang Schulz-Schlitte, Michael Voigt
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Patent number: 6316587Abstract: The present invention provides a polyamide composition comprising: a polyamide containing an alkylene oxide group; and a metal salt. The polyamide composition of the present invention has long lasting antistatic properties and a lower surface resistivity than the polyamide alone.Type: GrantFiled: October 29, 1999Date of Patent: November 13, 2001Assignee: Industrial Technology Research InstituteInventors: Yuung-Ching Sheen, Jen-Lien Lin, Jiang-Jen Lin, Meng-Yao Yang
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Patent number: 6316585Abstract: The present invention relates to the preparation of enzymatically degradable polymers, having repeating structural unit as shown hereinbelow: X—is selected from phenolic —OH of tyrosine, —OH of serine and threonine and —SH of cysteine Y—is pendant group selected from drug molecules containing carboxyl groups, R—is hydrogen, methyl or mixture of hydrogen and methyl on the individual molecule, n—is an integer from 0 to about 100, and m—is an integer from 0 to 10, the said process comprises the steps of reacting diester of poly (oxyalkylene glycol) and hydrochloride of trifunctional amino acid with a dicarboxylic acid in the presence of a condensing agent in a solvent at a temperature in the range of 0° C.Type: GrantFiled: January 19, 2000Date of Patent: November 13, 2001Assignee: Council of Scientific and Industrial ResearchInventors: Bhalchandra Shripad Lele, Turumella Padmaja, Mohan Gopalkrishna Kulkarni
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Patent number: 6313234Abstract: A heat settable, coating system of carboxyl-functional polyester resins, polyfunctional epoxy compounds and/or &bgr;-hydroxy alkyl amides, as well as further customary additives, if required. The coating system contains at least one linear carboxyl-functional polyester resin of up to 10 mol-part of isophthalic acid and at least 90 mol-parts of at least a further dicarboxylic acid from the group of aromatic dicarboxylic acids with 8 to 16 C-atoms, aliphatic dicarboxylic acids with 6 to 22 C-atoms and cycloaliphatic dicarboxylic acids with 8 to 16 C-atoms, and at least 90 mol-parts of at least one branched aliphatic diol with 4 to 12 C-atoms, and up to 50 mol-parts of at least one linear aliphatic diol with 2 to 22 C-atoms and/or at least one cycloaliphatic diol with 6 to 16 C-atoms as the binder resin.Type: GrantFiled: June 6, 1995Date of Patent: November 6, 2001Assignee: EMS Inventa-AGInventors: Andreas Kaplan, Manfred Hoppe, Eberhard Kinkelin
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Publication number: 20010016630Abstract: The invention relates to a process for preparing a high-molecular polyamide or polyester by melt-mixing polyamide or polyester having a lower molecular weight with a carbonyl bislactam having formula 1, in which n=an integer of between 3 and 15.Type: ApplicationFiled: January 31, 2001Publication date: August 23, 2001Applicant: DSM N.V.Inventors: Jacobus A. Loontjens, Bartholomeus J. M. Plum
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Publication number: 20010012882Abstract: A method for the preparation of a succinimide copolymer by the catalytic co-polymerization of aspartic acid with a selected polyfunctional monomer in the presence of a cyclic carbonate solvent. Succinimide copolymers of relatively high weight average molecular weight and high purity can be produced in relatively high yields while employing a relatively low catalyst loading.Type: ApplicationFiled: March 5, 2001Publication date: August 9, 2001Applicant: Donlar CorporationInventors: Grigory Ya. Mazo, Robert J. Ross, James F. Kneller, Jacob Mazo
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Patent number: 6268460Abstract: The present invention provides a process for preparing an optical alignment layer for aligning liquid crystals and liquid crystal displays comprising exposing polyimide layers with polarized light. The invention further describes optical alignment layers, liquid crystal displays incorporating optical alignment layers and novel polymer compositions within the class of polyimide, polyamic acids and esters thereof.Type: GrantFiled: July 18, 2000Date of Patent: July 31, 2001Inventors: Wayne M. Gibbons, Patricia A. Rose, Paul J. Shannon, Hanxing Zheng
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Patent number: 6242509Abstract: An ester-terminated dimer acid-based polyamide may be blended with a solvent to form a gel. The solvent may be flammable, and a wick may be added to the resulting gel so as to form a candle. Depending on the composition, the candle may be formed into a free standing pillar, or may be better suited to being placed in a container. The solvent may be mineral oil. A solid coating may be placed around the candle, for advantages including to enhance the clarity and/or mechanical stability of the gelled body, and to eliminate the tendency of a gel to have an oily feel and to accept noticeable fingerprints. The ester-terminated dimer acid-based polyamide may also be combined with an active ingredient, such as a fragrance, colorant, insect-repellant, insecticide, bioactive ingredient or the like, to afford a delivery vehicle for the active ingredient.Type: GrantFiled: April 15, 1999Date of Patent: June 5, 2001Assignees: International Paper Company, Bush Boake Allen Inc.Inventors: Vivian Berger, Jochen Heydel, Virgil A. G. Williams, Charles R. Frihart, Ronald L. Gordon, Richard C. MacQueen, Mark S. Pavlin
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Patent number: 6203872Abstract: Proposed is a process for sealing the seams of a water vapour permeable lining comprising a laminate of a textile material and a waterproof, but water vapour permeable film in which sections of said laminate with the textile sides facing one another are bonded together along the contours of the material to be lined, after which the lining is dipped in a solution of a hydrophilic polymer in an organic solvent which acts as a swelling agent for the waterproof film of the laminate, followed by evaporation of the solvent. The water vapour permeable film in the laminate preferably is made of a hydrophilic copolyetherester or copolyetheramide, while the hydrophilic polymer soluble in an organic solvent preferably is a copolyetherester.Type: GrantFiled: July 23, 1998Date of Patent: March 20, 2001Assignee: Akzo Nobel NVInventor: Dennis W Hannon
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Patent number: 6169160Abstract: Substrates that are moisture-sensitive and/or corrosion-sensitive, such as electrical components found in fiber optic cables, copper wires, terminal blocks, connections and junctions, are protected from moisture and/or corrosion with a protectant composition that includes a polyamide gelling agent, a gelled solvent, and optionally a bleeding agent. The electrical components are typically contacted with the protective composition to protect the sensitive component from moisture and/or corrosion.Type: GrantFiled: January 4, 1999Date of Patent: January 2, 2001Assignee: Union Camp CorporationInventors: Richard C. MacQueen, Marc Jackson, Mark S. Pavlin
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Patent number: 6162840Abstract: The invention concerns the use of monomer-free saturated or unsaturated polyester resins or mixtures of saturated and unsaturated polyester resins containing structural units of general formulae (I) and/or (II), in which n=1-10, as impregnation, sealing and coating compounds for electrical engineering and electronic components and for carrier substances for flat insulating materials.Type: GrantFiled: July 6, 1998Date of Patent: December 19, 2000Assignee: Dr. Beck + CO.AGInventors: Rainer Blum, Thomas Loerzer, Gunther Hegemann, Manfred Eichhorst
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Patent number: 6150494Abstract: The invention relates to a polymer prepared from the repeat units of residues of a monomer of at least one dicarboxylic acid or ester; a monomer comprising a diol, diamine or a mixture thereof; a monomer comprising at least one sulfonate group and at least one polyester reactive group, and a monomer comprising an optical brightener agent having at least one polyester reactive group. The invention further relates to a method for preparing a polymer. The invention further relates to method of marking an article or composition with the polymer. The invention further relates to a method for detecting and separating an article contacted with the polymer. The invention further relates to an article or composition contacted with the polymer. The invention further relates to a method for enhancing the optical brightness of an article or composition, by contacting the article or composition with the polymer.Type: GrantFiled: April 30, 1998Date of Patent: November 21, 2000Assignee: Eastman Chemical CompanyInventors: Richard Hsu-Shien Wang, James J. Krutak, Mahendra K. Sharma, Barbara C. Jackson
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Patent number: 6139954Abstract: The invention relates to amorphous and crystalline fibers, particularly binder fibers, made from polyesters and the polyesters themselves. The polyesters of the invention are generally formed from a glycol component, such as a five carbon glycol, and a dicarboxylic acid component. The polyesters may be formed into a variety of products, for example fibers, composites and other molded articles. Preferably the polyesters are binder fibers for nonwovens, textile and industrial yarns and fabrics.Type: GrantFiled: August 6, 1999Date of Patent: October 31, 2000Assignee: Eastman Chemical CompanyInventors: Leron R. Dean, William A. Haile, Richard L. McConnell
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Patent number: 6121408Abstract: The powder coating for use in a coating method which includes the steps of mixing and applying two or more powder coatings to a substrate, the powder coating comprising a resin not having thermosetting properties at a temperature of 160.degree. C. or less by itself, and being heat-cured at a temperature of 160.degree. C. or less when used in combination with other powder coatings. The powder coating composition comprising two or more powder coatings, wherein each of the powder coatings comprises a resin not having thermosetting properties at a temperature of 160.degree. C. or less by itself, and being heat-cured at a temperature of 160.degree. C. or less to form a coating film when used in combination with other powder coatings.Type: GrantFiled: April 7, 1998Date of Patent: September 19, 2000Assignee: Kao CorporationInventors: Katsutoshi Aoki, Masayuki Maruta, Yukiya Sato, Hisakazu Tajima, Takehiko Tohjo, Yasunori Inagaki, Shingo Tanaka
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Patent number: 6111055Abstract: An ester-terminated dimer acid-based polyamide may be blended with a solvent to form a gel. The solvent may be flammable, and a wick may be added to the resulting gel so as to form a candle. Depending on the composition, the candle may be formed into a free standing pillar, or may be better suited to being placed in a container. The solvent may be mineral oil. A solid coating may be placed around the candle, for advantages including to enhance the mechanical stability of the gelled body, and to eliminate the tendency of a gel to have an oily feel and to accept noticeable fingerprints. The solvent which, in combination with the ester-terminated dimer acid-based polymer forms a gel, may be or include a fragrance material, an insecticide or an insect repellent. A wick may or may not be present in this gel, but in any event, the composition provides for the release of the fragrance, insecticide or insect-repellent.Type: GrantFiled: September 26, 1997Date of Patent: August 29, 2000Assignees: Union Camp Corporation, Bush Boake AllenInventors: Vivian Berger, Charles R. Frihart, Ronald L. Gordon, Jochen Heydel, Richard C. MacQueen, Mark S. Pavlin, Virgil Williams
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Patent number: 6107438Abstract: A method of producing a polyamide resin by reacting with at least one diamine compound, at least one linear polyester resin consisting of at least one dicarboxylic acid component and at least one diol component and having an intrinsic viscosity of not less than 0.2 dl/g, the at least one diamine compound being used in an amount of 0.5-1.5 mol per 1 mol of the at least one linear polyester resin as calculated in the repeating unit thereof, the linear polyester resin and the diamine compound being reacted in a reaction medium comprising at least one solvent selected from aprotic protophobic polar solvents, so that the at least one diol component of the linear polyester resin is substituted by the diamine compound, resulting in the polyamide resin as a reaction product.Type: GrantFiled: October 1, 1998Date of Patent: August 22, 2000Assignee: M & S Research and Development Co., Ltd.Inventor: Seiko Nakano
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Patent number: 6100370Abstract: The invention concerns a softener-free polyamide prepared by polycondensation and/or polymerization of polyamide-forming monomers, wherein it was obtained by adding 5-50 wt. % of a dimer diol with a molecular weight within the range of 400-1000 and/or corresponding OH-terminated polyesters.Type: GrantFiled: May 6, 1999Date of Patent: August 8, 2000Assignee: Ems-Chemie AGInventors: Heinz Hoff, Ulrich Wolf
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Patent number: 6074758Abstract: A poly(hydroxy ester ether) is prepared by reacting a) a diacid containing a hetero moiety of the formula:HO.sub.2 CCH.sub.2 X(RX).sub.y CH.sub.2 CO.sub.2 Hwherein X is selected from the group consisting of --O--, --S--, and NH; y is the whole number 0 or 1; and R is selected from the group consisting of an aromatic moiety and a heterocyclic moiety having from 6 to 30 carbon atoms; andb) a diglycidyl ether generally represented by the formula: ##STR1## wherein R.sup.2 is an aromatic moiety or divalent aliphatic hydrocarbon having 2 to 20 carbon atoms. Films, articles and laminations made from the composition exhibit an oxygen permeability of less than about 8 cc-mil/100 in.sup.2 -24 hour-atmosphere. The present invention is further directed to a miscible blend having the poly(hydroxy ester ether) of the present invention and a second component selected from a saturated polyester of an aromatic diacid, such as PET and PEN.Type: GrantFiled: November 4, 1999Date of Patent: June 13, 2000Assignee: Eastman Chemical CompanyInventor: Robert Boyd Barbee
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Patent number: 6037421Abstract: The present invention provides a condensation polymer, selected from the group consisting of polyamides and polyesters, that comprises between about 0.5% and about 4.0%, based on the theoretical moles of monomeric repeat units, of a trifunctional repeat unit. One of the functional groups of the trifunctional repeat unit comprises a moiety that imparts a desired property to the polymer, such as stain resistance or UV stabilization. One particular embodiment of the invention is a nylon 66 polymer that comprises between about 0.5% and 4.0%, based on the theoretical moles of nylon 66 repeat units, of a trifunctional repeat unit having the general formula: ##STR1## wherein R is the functional group that imparts a desired property to the polymer; a, b, and c are separately integers from 0-5. Preferably a+b=5 and c is 3.Type: GrantFiled: September 29, 1998Date of Patent: March 14, 2000Assignee: Solutia Inc.Inventor: Jawed Asrar
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Patent number: 5998570Abstract: A low molecular weight, ester-terminated polyamide may be blended with a liquid hydrocarbon to form a transparent composition having gel consistency. The ester-terminated polyamide is prepared by reacting "x" equivalents of dicarboxylic acid wherein at least 50% of those equivalents are from polymerized fatty acid, "y" equivalents of diamine such as ethylene diamine, and "z" equivalents of monoalcohol having at least 4 carbon atoms. The stoichiometry of the reaction mixture is such that 0.9.ltoreq.{x/(y+z)}.ltoreq.1.1 and 0.1.ltoreq.{z/(y+z)}.ltoreq.0.7. The reactants are heated until they reach reaction equilibrium. The gel contains about 5-50% ester-terminated polyamide with the remainder preferably being pure hydrocarbon. The gels are useful in formulating personal care products and other articles wherein some degree of gel-like or self-supporting consistency is desired.Type: GrantFiled: May 6, 1998Date of Patent: December 7, 1999Assignee: Union Camp CorporationInventors: Mark S. Pavlin, Richard C. MacQueen
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Patent number: 5986041Abstract: A polyetheresteramide compound and the method of preparing it comprise: a polyether compound containing a diamino group at the end mixed with a diacid and a diol, and being polymerized and condensed to form a polyetheresteramide compound. This polyetheresteramide is a durable anti-static resin. In addition to the anti-static property, the polyetheresteramide compound has the physical properties of the original polyester. Thus, the polyetheresteramide compound can be added into an anti-static resin and applied in general resin industry, special chemical and spinning industries. The anti-static products, such as the anti-static thin plate, anti-static bag, IC cover tape, anti-static clothes, and dustless clothes, or even broadly applied in electronic communication, semiconductor, and optoelectronic manufactures.Type: GrantFiled: June 19, 1997Date of Patent: November 16, 1999Assignee: Industrial Technology Research InstituteInventors: Ling-Yu Cheng, Yuung-Ching Sheen, Tsai-Wie Tseng, Juh-Shyong Lee
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Patent number: 5962557Abstract: A colored polyester copolymer comprising the reaction product of at least one linear thermoplastic polyester precursor and at least ten parts per million by weight of a residue of at least one 1,4-bis (2,6-dialkylanilino)-9,10-anthraquinone colorant. A composition may be formed comprising the copolymer in admixture with at least one thermoplastic polymer. The copolymer may be formed by reacting at least one thermoplastic polyester precursor with a 1,4-bis (2,6-dialkylanilino)-9,10-anthraquinone colorant which has a polyester reactive group.Type: GrantFiled: August 7, 1997Date of Patent: October 5, 1999Assignee: Eastman Chemical CorporationInventors: Max Allen Weaver, Brian Edison Maxwell, Gerry Foust Rhodes, James John Krutak, Sr.
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Patent number: 5962520Abstract: A hydrolytically unstable, biocompatible polymer capable of carrying and releasing a pharmaceutical compound when introduced into physiological media. In a preferred embodiment, the polymer contains ester linkages that are susceptible to hydrolytic degradation. A monomeric unit of the polymer can also be used as a hydrolytically unstable linking agent for quickening the degradation of polymers, particularly cross-linked polymers.Type: GrantFiled: April 2, 1998Date of Patent: October 5, 1999Assignee: The University of AkronInventors: Daniel J. Smith, Weisun Rao
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Patent number: 5955561Abstract: Novel hydroxy ester, hydroxy amide, and amide functional compounds are provided comprising the reaction product of:(a) an active ester functional material having the structure: ##STR1## wherein R.sup.1 is derived from a polyisocyanate; m is at least 2; R.sup.2 is a lower alkyl or alkoxy group; and R.sup.3 is a lower alkyl group; and(b) ammonia, a diol, or an amino functional material having the structure:R.sup.4 --NH--(R.sup.5).sub.x --(R.sup.6 OR.sup.7).sub.ywherein R.sup.4 is --H or alkanol; R.sup.5 is a polyvalent linking group comprising alkylene, alkylamino, urethane, or amido; x is 0 or 1; R.sup.6 is a divalent linking group comprising alkylene, silane, or siloxane; R.sup.7 is H or a lower alkyl; and y is 1 to 3. The compound is useful in curable film-forming compositions.Type: GrantFiled: December 19, 1997Date of Patent: September 21, 1999Assignee: PPG Industries Ohio, Inc.Inventor: Padmanabhan Sundararaman
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Patent number: 5929199Abstract: The present invention is a cyanate resin monomer having the formula:NCO--CH.sub.2 --(CF.sub.2).sub.n --CH.sub.2 --OCNwhere n is an even integer from 6 to 10, inclusive.Another aspect of the invention is an essentially pure cyanate resin mono having the formula:NCO--CH.sub.2 --(CF.sub.2).sub.n --CH.sub.2 --OCNwhere n=3, 4, 6, 8, or 10. Another aspect of the invention is a prepolymer made by the process of heating a monomer of the invention to a conversion below the gel point. Another aspect of the invention is a method for depositing an interlevel dielectric resin on an integrated circuit, having the steps: (a) coating the integrated circuit with a thin film of a prepolymer made by the process of heating a monomer of the invention to below the gel point, and (b) curing the prepolymer to at least the gel point. Another aspect of the invention is a low dielectric thermoset polymer resin made from these monomers.Type: GrantFiled: January 13, 1998Date of Patent: July 27, 1999Assignee: The United States of America as represented by the Secretary of the NavyInventors: Arthur W. Snow, Leonard J. Buckley
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Patent number: 5880220Abstract: Biodegradable polyetheresteramides P1 which are obtained by reacting(a1) a mixture containing20-95 mol % of adipic acid or ester-forming derivatives thereof or mixtures thereof and5-80 mol % of terephthalic acid or ester-forming derivatives thereof or mixtures thereof, and(a2) a mixture of dihydroxy compounds(a21) from 15 to 99.3 mol % of a dihydroxy compound selected from the group consisting of C.sub.2 -C.sub.6 -alkanediols and C.sub.5 -C.sub.10 -cycloalkanediols,(a22) from 0.2 to 85 mol % of a dihydroxy compound containing ether functionalities of the formula IHO--((CH.sub.2).sub.n --O).sub.m --H Iwhere n is 2, 3 or 4 and m is an integer from 2 to 250, or mixtures thereof and(a23) from 0.5 to 80 mol % of an amino-C.sub.2 -C.sub.12 -alkanol or amino-C.sub.5 -C.sub.10 -cycloalkanol,where the molar ratio of (a1) to (a2) is from 0.4:1 to 1.5:1, with the proviso, inter alia, that the polyetheresteramides P1 have a molecular weight (M.sub.Type: GrantFiled: July 3, 1997Date of Patent: March 9, 1999Assignee: BASF AktiengesellschaftInventors: Volker Warzelhan, Gunnar Schornick, Frank Braun, Ursula Seeliger, Motonori Yamamoto, Peter Bauer
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Patent number: 5863991Abstract: Biodegradable polyetheresteramides Q1 with a molecular weight (M.sub.n) in the range from 6000 to 80,000 g/mol, a viscosity number in the range from 30 to 450 g/ml (measured in o-dichlorobenzene/phenol (50/50 ratio by weight) at a concentration of 0.5% by weight polyetheresteramide Q1 at 25.degree. C.), and a melting point in the range from 50.degree. to 200.degree. C., obtained by reacting a1) from 95 to 99.9% by weight polyetheresteramide P1, obtained by reacting a mixture ofb1) 20-95 mol % adipic acid or ester-forming derivatives thereof, and5-80 mol % terephthalic acid or ester-forming derivatives thereof, andb2) a mixture of a dihydroxy compound selected from C.sub.2 -C.sub.6 -alkanediols and C.sub.5 -C.sub.10 -cycloalkanediols,b22) a dihydroxy compound which contains ether functionalities and has the formula IHO--((CH.sub.2).sub.n --O)).sub.m --H Iwhere n is 2, 3 or 4 and m is an integer from 2 to 250, andb23) from 0.5 to 80 mol % of an amino-C.sub.2 -C.sub.12 -alkanol or an amino-C.sub.5 -C.sub.Type: GrantFiled: July 3, 1997Date of Patent: January 26, 1999Assignee: BASF AktiengesellschaftInventors: Volker Warzelhan, Gunnar Schornick, Matthias Kroner, Ursula Seeliger, Motonori Yamamoto, Gerhard Ramlow
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Patent number: 5854376Abstract: A composition of an aliphatic ester-amide copolymer which is soluble in an organic solvent with an LD.sub.50 value (orally administered to a rat) of about 2,000 mg/kg or more.Type: GrantFiled: March 11, 1996Date of Patent: December 29, 1998Assignee: Sekisui Kaseihin Kogyo Kabushiki KaishaInventor: Takashi Higashi
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Patent number: 5852109Abstract: Solid poly-.alpha.-amino acid particles are obtained by preparing an oil-in-water emulsion from water and an organic solvent having a water solubility of 10 g/100 ml or less, and polymerizing an .alpha.-amino acid-N-carboxy anhydride by emulsion polymerization in the oil-in-water emulsion, or by polymerizing an .alpha.-amino acid-N-carboxy anhydride in water in the presence of an emulsifier and an initiator. Hollow particles can be obtained by adding a poor solvent for the poly-.alpha.-amino acid to the poly-.alpha.-amino acid particles and removing the solvents. These poly-.alpha.-amino acid particles are useful as a novel raw materials for coating on papers, rubbers and fibers, for encapsulating cosmetics, drugs, agricultural chemicals and fertilizers, and as particles for diagnostic reagents.Type: GrantFiled: September 11, 1995Date of Patent: December 22, 1998Assignee: JSR CorporationInventors: Kenya Makino, Seiji Fukuhara, Kyoko Kuroda, Toshio Hayashi
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Patent number: 5852155Abstract: Disclosed are polyesteramide resin compositions having amide units of formula (I): ##STR1## and the units of the formula (II): ##STR2## wherein the polyesteramide is substantially devoid of units derived from butane diol. The ratio of (I) to (II) in the polyesteramide is preferably less than 1:3. Preferred polyesteramides have at least 80% of units of formula (I) separated by at least one of the units of formula (II).Type: GrantFiled: March 1, 1995Date of Patent: December 22, 1998Assignee: General Electric CompanyInventors: Jan Bussink, Reinoud Jaap Gaymans, Johannes Hubertus G. M. Lohmeijer, Ilias Nicholas Mamalis, Gary F. Smith, Antoinette Cornelia Maria van Bennekom
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Patent number: 5843541Abstract: The present invention relates to liquid crystalline copoly(ester-imides) and a process for the preparation thereof. In particular, the invention relates to liquid crystalline copoly(esteri-imides) comprising structural units derived from N-(3'-hydroxyphenyl)-trimellitic acid imide or N-(4'-carboxyphenyl)trimellitic acid imides optionally in combination with aromatic dicarboxylic acids, dioles or hydroxy acids. The invention also concerns the use of these copolymers in polymer blends, in moulded articles, in fibres, filaments and sheets.Type: GrantFiled: December 23, 1996Date of Patent: December 1, 1998Assignee: OPTATECH CorporationInventors: Heli Alanko, Hans Kricheldorf, Ari Salmela
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Patent number: 5837803Abstract: A method of producing a polyamide resin by reacting 1 mol of linear polyester resin (as calculated in repeating unit of the linear polyester resin) consisting of at least one dicarboxylic acid component and at least one diol component and having an intrinsic viscosity of not less than 0.2 dl/g with 0.5-1.5 mol of at least one diamine compound in a reaction medium comprising at least one solvent which is selected from the group consisting of hydrocarbons, halogenated hydrocarbons, ethers and acetals, so that the diol component of the linear polyester resin is substituted by the diamine compound to provide the polyamide resin as a reaction product.Type: GrantFiled: March 31, 1997Date of Patent: November 17, 1998Assignee: M & S Research and Development Co., Ltd.Inventor: Seiko Nakano