Nitrogen-containing Reactant Patents (Class 528/288)
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Publication number: 20040210034Abstract: Anti-reflective compositions and methods of using these compositions to form circuits are provided. The compositions comprise a polymer dissolved or dispersed in a solvent system.Type: ApplicationFiled: May 11, 2004Publication date: October 21, 2004Inventors: Robert Christian Cox, Charles J. Neef
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Patent number: 6806344Abstract: Novel poly-o-hydroxyamides can be cyclized to give polybenzoxazoles which have a good diffusion barrier effect with respect to metals. The poly-o-hydroxyamides can be applied to a semiconductor substrate by customary techniques and converted into the polybenzoxazole in a simple manner by heating. This results in a good barrier layer with respect to diffusion of metals. This allows the diffusion barrier between conductor track and dielectric to be substantially dispensed.Type: GrantFiled: June 27, 2003Date of Patent: October 19, 2004Assignee: Infineon Technologies AGInventors: Recai Sezi, Andreas Walter, Anna Maltenberger, Klaus Lowack
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Patent number: 6797804Abstract: 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 (b) linear ester selected from polyesterpolyol, polyesteretherpolyol or polycarbonatepolyol. The surface resistivity is less than 1013&OHgr;.Type: GrantFiled: June 11, 2003Date of Patent: September 28, 2004Assignee: DSM N.V.Inventor: Motoji Abe
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Patent number: 6794480Abstract: A monomer containing an electron-withdrawing group and an electron-donative group which can be easily controlled in the upper limit of the amount of a sulfonic acid, which impairs the mechanical properties of a copolymer, and can provide a sulfonated polymer that forms a proton-conductive membrane having a high proton conductivity over a wide temperature range, an excellent mechanical strength and an excellent proton conductivity and showing inhibited swelling in hot water and an aqueous solution of methanol, and a copolymer obtained from the monomer. A monomer containing an electron-withdrawing group and an electron-donative group represented by the following general formula (1): wherein Y represents a iodine atom, chlorine atom or bromine atom; X represents an electron-withdrawing group; B represents an electron-donative group; and Z represents an aryl group having a specific structure or a monovalent condensed ring hydrocarbon group such as naphthyl group.Type: GrantFiled: March 26, 2002Date of Patent: September 21, 2004Assignee: JSR CorporationInventors: Kohei Goto, Masayuki Takahashi, Yoshitaka Yamakawa, Makoto Higami
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Publication number: 20040158027Abstract: A polyesteramide copolymer having a glass transition temperature (Tg) of less than or equal to 0° C., contains at least one hard segment containing at least one amide bond, and at least one soft segment containing at least one ester bond. The soft segment is formed from at least one dimer fatty acid and/or dimer fatty diol and/or equivalent thereof. The copolymer is particularly suitable for use as a hot melt adhesive on low energy surfaces.Type: ApplicationFiled: April 14, 2004Publication date: August 12, 2004Inventors: Renee Josie Gide Van Schijndel, Jeffrey Thomas Carter, Eric Appleman
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Patent number: 6774207Abstract: The present invention relates to polyaspartate mixtures containing a) 5 to 70 equiv. %, based on the total equivalents of aspartate groups, of a cyclic polyaspartate corresponding to the formula wherein X1 represents the residue obtained by removing the amino groups from a cyclic polyamine having a functionality of n, R1 and R2 are identical or different and represent organic groups which are inert to isocyanate groups at a temperature of 100° C. or less, R3 and R4 are identical or different and represent hydrogen or organic groups which are inert towards isocyanate groups at a temperature of 100° C. or less and n is 2 to 4, and b) 30 to 95 equiv.Type: GrantFiled: September 26, 2002Date of Patent: August 10, 2004Assignees: Bayer Polymers LLC, Bayer AktiengesellschaftInventors: Karsten Danielmeier, Catherine M. Britsch, Rolf Gertzmann, Michele E. Vargo, Terrell Dean Wayt, Edward P. Squiller, Richard R. Roesler
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Patent number: 6774206Abstract: The present invention relates to polyaspartates corresponding to the formula wherein X1 represents the residue obtained by removing the amino groups from a polyether polyamine having a functionality of n and a number average molecular weight of less than 600, wherein the amino groups are attached to primary carbon atoms and the ether groups are separated by at least two carbon atoms, R1 and R2 are identical or different and represent organic groups which are inert to isocyanate groups at a temperature of 100° C. or less, R3 and R4 are identical or different and represent hydrogen or organic groups which are inert towards isocyanate groups at a temperature of 100° C. or less and n is 2 to 4. The present invention also relates to polyureas prepared by reacting the polyaspartates and optionally other isocyanate-reactive compounds with polyisocyanates.Type: GrantFiled: September 26, 2002Date of Patent: August 10, 2004Assignees: Bayer Polymers LLC, Bayer AktiengesellschaftInventors: Karsten Danielmeier, Catherine M. Britsch, Rolf Gertzmann, Michele E. Vargo, Terrell D. Wayt, Edward P. Squiller
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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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Publication number: 20040120927Abstract: The present invention is directed to synthetic, biodegradable, biocompatible polymers that are the reaction product of an &agr;,&bgr;-unsaturated polybasic acid or derivative thereof and a monoglyceride, and which further contain pended thereto a functional agent, and to medical devices and compositions containing such polymers.Type: ApplicationFiled: December 18, 2002Publication date: June 24, 2004Inventor: Aruna Nathan
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Patent number: 6750316Abstract: 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. With the process according to the invention a permanent increase in the molecular weight of a polyamide is obtained within 2 minutes, whereas this takes at least 10 minutes under comparable conditions using a bislactam according to the state of the art.Type: GrantFiled: April 19, 2002Date of Patent: June 15, 2004Assignee: DSM N.V.Inventors: Jacobus A. Loontjens, Bartholomeus J. M. Plum, Petrus M. M. Nossin
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Patent number: 6740415Abstract: The invention relates to a radiation curable powder paint binder composition comprising a radiation curable compound being a mono or multi valent carboxylic ester of a &bgr;, &ggr;, &dgr;, or &egr;-hydroxyalkylamide group containing compound, in which the carboxylic ester is derived from an &agr;, &bgr;-ethylenically unsaturated carboxylic acid.Type: GrantFiled: January 5, 2001Date of Patent: May 25, 2004Assignee: DSM N.V.Inventors: Rudolfus A. T. M. Van Benthem, Saskia Udding-Louwrier, Johan F. G. A. Jansen, Aylvin J. A. A. Dias
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Patent number: 6740706Abstract: The invention relates to an economical method of making a polymer having reduced VOCs and coating compositions containing such polymers. In one embodiment, the method of invention requires providing a reactant mixture (a), providing a solvent mixture (b) comprising a reactive component (c) which is substantially free of any heteroatoms and is not a crystalline solid at room temperature and comprises (i) from 12 to 72 carbon atoms, and (ii) at least two functional groups, and subjecting the reactant mixture (a) in the solvent mixture (b) to polymerization conditions sufficient to polymerize reactant mixture (a) to provide a mixture (d) of a polymer (a′) in solvent mixture (b), wherein reactive component (c) under the polymerization conditions is substantially nonreactive: (1) with the components of reactive mixture (a), (2) in the polymerization of reactant mixture (a) and (3) with the polymer (a′).Type: GrantFiled: December 7, 2001Date of Patent: May 25, 2004Assignee: BASF CorporationInventors: Walter H. Ohrbom, Robert D. Weise, James A. Laugal
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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: 6727342Abstract: Polyester resins formed by recurring units X=[O—(CH2)n—OCO—(CH2)m—CO] and/or Y=[O—(CH2)k—CO], where the half-sum of n+m is equal to or greater than 6 and k is a number equal to or greater than 6, or by copolymers comprising units and/or sequences having the formula xi[O—(CH2)ni—OCO—(CH2)mi—CO]; yj[O—(CH2)kj—CO] where: i,j=1-5; ni=2-22; mi=0-20; kj=1=21; (Formula (1)) and xi and yj vary between 0 and 1 and are molar fractions of the various units such that (Formula (2)), are used for the preparation of products in which a permeability to water vapour of less than 350 g×30 &mgr;m/m2 per day, measured at 38° C. and 90% RH and good biodegradability are required.Type: GrantFiled: June 8, 2001Date of Patent: April 27, 2004Assignee: Ministero Dell'Universita'E Della Ricerca Scientifica TechnologicaInventors: Catia Bastioli, Marco Foa', Giandomenico Cella, Giovanni Floridi, Fernanda Farachi, Tiziana Milizia
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Patent number: 6723799Abstract: An acid-dyeable polymer composition comprising (a) polymer and (b) polymeric additive comprising repeating units having the formula: or salts thereof, wherein A, B and Q, which may be the same or different, are selected from aliphatic or aromatic substituents provided that at least four carbon atoms separate any two nitrogen groups, R is an aliphatic or aromatic group, a is 1 to 5, and n is 3 to about 1,000. In addition, an acid-dyed composition prepared from the composition, a process of acid dyeing the composition and a process for preparing the composition.Type: GrantFiled: August 24, 2001Date of Patent: April 20, 2004Assignee: E I. du Pont de Nemours and CompanyInventors: Yanhui Sun, David P. Higley
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Publication number: 20040068089Abstract: The invention relates to a process for preparing stabilized compositions based on polyamide. The stabilizer is a phosphorus stabilizer selected from phosphorous acid and hypophosphorous acid. It is introduced before or during the polymerization of the polyamide. The use of these stabilizers prevents foaming phenomena.Type: ApplicationFiled: October 30, 2003Publication date: April 8, 2004Inventors: Thierry Charbonneaux, Jean-Francois Thierry
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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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Publication number: 20040063893Abstract: The present invention relates to polyaspartates corresponding to the formula 1Type: ApplicationFiled: September 26, 2002Publication date: April 1, 2004Inventors: Karsten Danielmeier, Catherine M. Britsch, Rolf Gertzmann, Michele E. Vargo, Terrell D. Wayt, Edward P. Squiller
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Publication number: 20040063894Abstract: The present invention relates to polyaspartate mixtures containingType: ApplicationFiled: September 26, 2002Publication date: April 1, 2004Inventors: Karsten Danielmeier, Catherine M. Britsch, Rolf Gertzmann, Michele E. Vargo, Terrell Dean Wayt, Edward P. Squiller, Richard R. Roesler
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Patent number: 6713641Abstract: Disclosed are blue, diol anthraquinone blue colorant compounds having excellent thermal stability and which can be reacted into or copolymerized with polyester thus providing a blue-colored polyesters useful for manufacturing a variety of shaped articles such as photographic film base, particularly roentgenographic (X-ray) film. Also disclosed are blue anthraquinone colorant compounds which contain two ethylenically-unsaturated (vinyl), photopolymerizable radicals which may be derived from the aforesaid diol anthraquinone compounds. The anthraquinone colorant compounds containing two ethylenically-unsaturated may be reacted into or copolymerized (or cured) with ethylenically-unsaturated monomers to produce colored vinyl polymers.Type: GrantFiled: October 19, 2001Date of Patent: March 30, 2004Assignee: Eastman Chemical CompanyInventors: Max Allen Weaver, Gerry Foust Rhodes, Jason Clay Pearson, Sara Stanley Wells, Michael John Cyr
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Patent number: 6706842Abstract: A glycol-organosilane composition and a process for producing the composition are disclosed. The composition comprises or is produced by combining (a) a glycol and (b) an organosilane. This composition is preferably substantially soluble in glycol and water. Also disclosed is a polyester composition and a process to produce the composition. The composition comprises repeat units derived from (a) a carbonyl compound or its oligomer, (b) a glycol, (c) a crosslinker, and (d) optionally a comonomer. The crosslinker can be the glycol-organosilane, a carbonyl compound containing 3 or more carboxyl groups, or an alcohol containing 3 or more hydroxyl groups. The comonomer is a dicarboxylic compound, a diol compound, or a carbonyl alcohol. The polyester composition can be used to increase the rate of polymerization, to increase pilling resistance and strength of polyester, to decrease crystallization rate and improve object forming process such as fibers and containers.Type: GrantFiled: February 6, 2003Date of Patent: March 16, 2004Inventor: Jiwen F. Duan
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Patent number: 6706855Abstract: An antimicrobial polymer, characterised in that it carries a covalently bound chromophoric marker. The antimicrobial polymer is preferably a cationic antimicrobial polymer, especially a poly(hexamethylenebiguanide). Also claimed are compositions containing the antimicrobial polymer, a method for treating a medium using the antimicrobial polymer and a method for detecting the antimicrobial polymer in a medium.Type: GrantFiled: March 4, 2002Date of Patent: March 16, 2004Assignee: Avecia LimitedInventors: Andrew Neale Collins, Brian David Bothwell, Graham John McPherson
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Publication number: 20040039150Abstract: Triazine ring based polymers for photoinduced liquid crystal alignment introduces photoactive groups for inducing, reinforcing, improving and preserving liquid crystal alignment, for example photoreactor such as cinnamate, coumarin, chalcone and maleimide, as a chain to have at least one photoactive group. One of the photoactive groups can experience Fries rearrangement which induces liquid crystal alignment, and other groups can experience photodimerization, photoisomerization, photocrosslinking or photodegradation to reinforce, change or preserve the generated alignment.Type: ApplicationFiled: May 1, 2003Publication date: February 26, 2004Inventors: Dongcheon Shin, Jinyool Kim, Kyusoon Park, Taemin Kim
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Publication number: 20040039152Abstract: A process for the preparation of polymeric condensates, wherein the reaction mixture is fed at least once during the condensation reaction through a zone of high energy density which has an energy density of at least 105 J/m3.Type: ApplicationFiled: June 9, 2003Publication date: February 26, 2004Inventors: Karlheinrich Meisel, Lars Obendorf, Branislav Boehmer, Bernd Thiele, Armin Spaniol, Dietmar Fuchs, Gerd-Friedrich Renner, Thomas Huebbe
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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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Publication number: 20030232961Abstract: Temperature sensitive, water soluble polymers are disclosed, together with a method for control the LCST of the polymer. The polymers include hydrophillic components and hydrophobic components joined by linking groups such as ester or amide groups wherein the hydrophilic components includes m ethylene oxide groups, the hydrophobic components consist of aliphatic groups such as n ethylenes and/or n cycloaliphatic groups, and where 1≦m≦30 and 1≦n≦30. Substrates bearing the grafted temperature responsive polymers also are disclosed. Microfluidic devices which include the temperature responsive polymers also are disclosed.Type: ApplicationFiled: March 14, 2003Publication date: December 18, 2003Inventors: Evangelos Manias, Mindaugas Rackaitis, Kenneth E. Strawhecker
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Polymeric pigment dispersant utilized as a grind resin for pigments and method of preparing the same
Patent number: 6657002Abstract: The present invention is directed to a polyester carboxylate polymeric pigment dispersant to be used as a grind resin to incorporate inorganic pigment into a pigment dispersion for a coating composition. The polymeric pigment dispersant is the reaction product of pentaerythritol, hexahydrophthalic anhydride, glycidylneodecanoate, and dimethylethanolamine. The present invention is also directed to a method of preparing the polymeric pigment dispersant. In this method, the pentaerythritol and the hexahydrophthalic anhydride are polymerized to form an intermediate compound. Next, an epoxy group of the glycidylneodecanoate reacts with the intermediate compound, and then the dimethylethanolamine neutralizes the intermediate compound to form the completed polymeric pigment dispersant. The polymeric pigment dispersant is utilized for efficient wetting and grinding of the pigment.Type: GrantFiled: December 22, 2000Date of Patent: December 2, 2003Assignee: BASF CorporationInventors: Swaminathan Ramesh, JoAnn Lanza -
Publication number: 20030212242Abstract: 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 (b) linear ester selected from polyesterpolyol, polyesteretherpolyol or polycarbonatepolyol. The surface resistivity is less than 1013 &OHgr;.Type: ApplicationFiled: June 11, 2003Publication date: November 13, 2003Inventor: Motoji Abe
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Patent number: 6645636Abstract: A condensation polymer, obtained through reaction of an alkanolamide and a cyclic anhydride to form a hydroxyalkylamide, followed by polycondensation of the hydroxyalkylamide, has at least two carboxylic acid end groups connected to an alkylamide groups via an ester linkage. The polymers may be used in powder paint compositions.Type: GrantFiled: September 24, 2001Date of Patent: November 11, 2003Assignee: DSM N.V.Inventor: Rudolfus A. T. M. Van Benthem
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Patent number: 6629833Abstract: A transparent conductive film (1) having a transparent plastic film (11) and a transparent conductive thin film (12) formed on at least one side thereof, characterized in that a resin layer (P) containing an ionic group in the range of 20 to 1000 eq/ton is provided between the transparent plastic film and the transparent conductive thin film and the ionic group containing resin has a cross-linked structure. The transparent conductive film has excellent adhesion to other conductive thin films and therefore exhibits excellent durability to input with a pen when used in touch panels.Type: GrantFiled: November 13, 2000Date of Patent: October 7, 2003Assignee: Toyo Boseki Kabushiki KaishaInventors: Toshiyuki Ohya, Tetsuo Shimomura, Yozo Yamada
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Publication number: 20030166828Abstract: Anti-reflective compositions and methods of using these compositions to form circuits are provided. The compositions comprise a polymer dissolved or dispersed in a solvent system.Type: ApplicationFiled: June 25, 2002Publication date: September 4, 2003Applicant: BREWER SCIENCE, INC.Inventors: Robert Christian Cox, Charles J. Neef
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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: 6607795Abstract: Herein is disclosed an oxygen scavenging composition, comprising (i) an oxygen scavenging polymer comprising units having structure I: wherein R1 and R2 are independently selected from the group consisting of —O—, —NCO—, and —NR—, wherein R is selected from the group consisting of —H and —C1-C6 alkyls; (ii) a transition metal oxidation catalyst; and (iii) an energy-absorbing compound selected from the group consisting of microwave reactive materials and photoinitiators having a wavelength of maximum absorption of electromagnetic radiation from about 200 nm to about 750 nm. The oxygen scavenging composition can be used to form an oxygen scavenging packaging article.Type: GrantFiled: December 19, 2001Date of Patent: August 19, 2003Assignee: Chevron Phillips Chemical Company LPInventors: Hu Yang, Ta Yen Ching, Peter Kwan
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Patent number: 6605359Abstract: Novel coating compositions containing a polymer, a hydrazide and a silane, methods of making and using such compositions and a substrate coated with such coating compositions.Type: GrantFiled: June 20, 2001Date of Patent: August 12, 2003Assignee: Akzo Nobel N.V.Inventors: Gregory Frantz Robinson, Robin Carol Shemancik, Robert Dale Speight, Philip Titsum Wong, Kenneth M. Znidersic
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Patent number: 6605688Abstract: This invention concerns low viscosity aldimine and ketimine reactive diluents having multi-imine functionality, which are useful in automotive refinish coating compositions, including a process for making them and the coatings that contain them.Type: GrantFiled: November 9, 2001Date of Patent: August 12, 2003Assignee: E. I. du Pont de Nemours and CompanyInventor: Marko Strukelj
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Publication number: 20030144461Abstract: In a step of polymerizing polyamic acid by mixing tetracarboxylic acid dianhydride and diamine and polycondensating the tetracarboxylic acid dianhydride and diamine under the presence of a polymerization-use solvent, a tetracarboxylic acid dianhydride slurry in which a tetracarboxylic acid dianhydride is dispersed in a dispersion medium is used. According to this, it is possible to directly manufacture a polyamic acid solution having a high concentration of polyamic acid more than or equal to 10% by weight. Especially, even if a tetracarboxylic acid dianhydride having low solubility in the polymerization-use solvent, it is possible to effectively manufacture a polyamic acid solution having high solids content, by a simple process and in a short time.Type: ApplicationFiled: December 19, 2002Publication date: July 31, 2003Applicant: KANEKA CORPORATIONInventors: Kan Fujihara, Kazuhiro Ono, Kiyokazu Akahori
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Patent number: 6596795Abstract: Novel ultraviolet absorbing compounds that are liquid in nature, are extremely low in color (and thus permit use without the concomitant necessity of adding large amounts of other coloring agents to combat such discoloring), and are highly effective in providing protection in wavelength ranges for which previous attempts at low-color ultraviolet absorbers have failed are provided herein. Such compounds provide such excellent, inexpensive, and beneficial protection from ultraviolet exposure within various media, including, but not limited to, clear thermoplastics. The particular compounds are generally polymeric in nature including various chain lengths of polyoxyalkylenes thereon and are liquid in nature to facilitate handling and introduction within the target media. In addition, such ultraviolet absorbers also exhibit extremely low migratory properties thereby providing long-term protective benefits to the target media as well.Type: GrantFiled: August 21, 2001Date of Patent: July 22, 2003Assignee: Milliken & CompanyInventors: Xiaodong E. Zhao, Mary E. Mason, Jusong Xia
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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: 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: 6583255Abstract: High performance polyester sulfone oligomers are prepared for aerospace applications by condensing mono- or difunctional crosslinkable end caps (i.e. unsaturated hydrocarbons having one or two crosslinking sites) with dicarboxylic acid halides and dialcohols (i.e. diols). Multidimensional oligomers have an aromatic hub from which the polyester chains radiate. Blends of the linear and multidimensional oligomers can be made using compatible, non-crosslinking polymers. Prepregs and composites are formed from the oligomers or blends.Type: GrantFiled: June 5, 1995Date of Patent: June 24, 2003Assignee: The Boeing CompanyInventors: Hyman R. Lubowitz, Clyde H. Sheppard
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Patent number: 6541600Abstract: Highly branched polyamides prepared in a single step procedure of condensation polymerization of multifunctional monomer reactants comprising amine and carboxylic acid functional groups. Polymerization proceeds by reaction of an amine group of a first monomer unit with an acid group of a second monomer unit to form a reaction product having an amide linkage between the first and second monomer units and repetition of such amidation reaction between additional amine groups and acid groups of the multi-functional monomers and reaction products of the multi-functional monomers. In the present invention, in order to obtain a water soluble or dispersible hyperbranched polyamide, at least one of the multifunctional monomer unit reactants contains an amine, phosphine, arsenine or sulfide group, such that the highly branched polyamide contains in the backbone thereof an N, P, As or S atom capable of forming an onium ion.Type: GrantFiled: July 31, 2001Date of Patent: April 1, 2003Assignee: Eastman Kodak CompanyInventors: Jin-Shan Wang, Huijuan D. Chen
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Patent number: 6541599Abstract: A process for the manufacture of soluble hyperbranched polyamides is disclosed comprising the steps of combining multifunctional monomer reactants comprising amine and carboxylic acid functional groups in a reactor with water, and reacting amine and carboxylic acid functional groups of the multi-functional monomers at elevated temperature and pressure for a period of time sufficient to form a highly branched polyamide. The present invention advantageously provides a simple, practical, and environmentally friendly process for the manufacture of soluble hyperbranched polyamides comprising multifunctional in-chain and/or end groups. The present invention also provides a process for the manufacture of soluble hyperbranched polyamides from monomers with a broad range of the ratio of functional amine groups to acid groups.Type: GrantFiled: July 31, 2001Date of Patent: April 1, 2003Assignee: Eastman Kodak CompanyInventor: Jin-Shan Wang
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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: 6528613Abstract: A solubilizing agent and a compound made by reacting selected nucleophiles, including fatty acid reactants and amines with an isocyanate are disclosed. The addition of the isocyanate and the different nucleophiles will create a di-urethane tetra-amide solubilizing agent product. The polyamide-solubilizing agent is useful as an ingredient in a phase change solid imaging material and as carrier compositions used to make phase change ink jet inks.Type: GrantFiled: June 26, 2000Date of Patent: March 4, 2003Assignee: 3D Systems, Inc.Inventors: Loc V. Bui, My T. Nguyen
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Patent number: 6521220Abstract: The present invention deals with the certain castor polyesters that give high gloss when applied to the skin. Said ester are the reaction of the hydroxyl group of castor oil with less than one equivalent of a fatty acid then in a subsequently step the remainder of an equivalent of a diacid.Type: GrantFiled: May 7, 2001Date of Patent: February 18, 2003Assignee: Zenitech LLCInventor: Anthony J. O'Lenick, Jr.
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Patent number: 6518390Abstract: A precursor of a polybenzoxazole resin which comprises a crosslinking group in a molecule and has a specific structure, a polybenzoxazole resin obtained from the precursor by the condensation reaction and the crosslinking reaction, an insulating film comprising the polybenzoxazole resin and a semiconductor device comprising an insulating interlayer film in multi-layer wiring or a film for protecting surfaces which comprises the above insulating film. The precursor exhibits excellent processability due to excellent solubility in solvents and, after the ring closure, excellent heat stability in applications. The resin exhibits excellent electric, physical and mechanical properties and is advantageously used for insulating interlayer films of semiconductor devices and the like applications.Type: GrantFiled: March 28, 2001Date of Patent: February 11, 2003Assignee: Sumitomo Bakelite Company, Ltd.Inventors: Masako Okanuma, Tatsuhiro Yoshida, Hidenori Saito, Nobuhiro Higashida, Masanori Fujimoto, Tadahiro Ishikawa
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Patent number: 6518388Abstract: A coating composition comprising; i) a polymer having uretdione groups, and ii) a polyamine crosslinker.Type: GrantFiled: June 21, 2001Date of Patent: February 11, 2003Assignee: PPG Industries Ohio, Inc.Inventor: David Robert Fenn
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Publication number: 20030007950Abstract: The present invention deals with the certain castor polyesters that give high gloss when applied to the skin. Said ester are the reaction of the hydroxyl group of castor oil with less than one equivalent of a fatty acid then in a subsequently step the remainder of an equivalent of a diacid.Type: ApplicationFiled: May 7, 2001Publication date: January 9, 2003Inventor: Anthony J. O'Lenick
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Patent number: 6482915Abstract: The invention provides a method for producing a thermotropic liquid crystalline polymer of high quality at high yield and in short polymerization time, which method includes polymerizing staring monomers I, II, III, and IV, i.e., (I) an aromatic hydroxycarboxylic acid, etc.; (II) an aromatic dicarboxylic acid and an alicyclic dicarboxylic acid; (III) an aromatic diol, an alicyclic diol, an aliphatic diol, etc.; and (IV) an aromatic hydroxylamine, an aromatic diamine, etc. in the presence of an acylating agent, wherein the starting materials are charged so as to satisfy the following equations (1) to (4): 0.0015≦((A)−(B))/((A)+(B))≦0.006 (1); 1.01≦(D)/(C)≦1.08 (2); 0≦(E)≦40 (3); and (D)/(C)≧−0.002 ×(E)+1.Type: GrantFiled: July 19, 2001Date of Patent: November 19, 2002Assignee: Polyplastics Co., Ltd.Inventor: Toshiaki Yokota
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Patent number: 6476184Abstract: Aromatic poly(1,3,4-heterodiazoles) include from 100 to 1,000 repeating units selected from the group consisting of in which R1, R2, R3 and R4 may be identical or different and are each an alkyl, alkoxy, phenyl, phenoxy or thiophenol group and X is S, O or N-phenyl, for use in optical devices, especially electroluminescent components.Type: GrantFiled: May 24, 2001Date of Patent: November 5, 2002Assignee: Fraunhofer-Gesellschaft zur Forderung der Angewardten Forschung E.V.Inventors: Silvia Janietz, Armin Wedel