Fused Or Bridged Ring System Patents (Class 524/324)
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Patent number: 11597819Abstract: A composite material having physical characteristics equivalent to particle board materials bonded with resin-based adhesives that contain formaldehyde-urea is formed of reclaimed textile debris comprising fabric scraps and a latex based binder. The binder includes natural rubber latex, sulfur, an anti-oxidant agent and pH adjustment substances. The binder may also include selected amounts of zinc oxide, zinc diethyldithiocarbamate and a stabilizer. Production of the composite material includes mixing the constituents and vulcanization through the application of heat and compression. Cold compression is subsequently applied.Type: GrantFiled: August 26, 2019Date of Patent: March 7, 2023Inventors: Pitak Laoratanakul, Sanjeev Madan Bahl, Pinyada Ninkamhang
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Patent number: 11161965Abstract: Organopolysulfides such as organodisulfides, organotrisulfides and/or organotetrasulfides are useful stabilizers for polymer compositions, wherein the tendency of a polymer to degrade when exposed to environmental conditions such as heat, light and oxygen may be ameliorated by the incorporation of one or more of such organopolysulfides, optionally together with one or more additional stabilization additives such as a hindered phenol antioxidant, phosp(on)ite stabilizer or hindered amine light stabilizer.Type: GrantFiled: March 6, 2019Date of Patent: November 2, 2021Assignee: Arkema Inc.Inventors: George Charles Fortman, Jonathan Pearce Stehman, Stephanie Christina Vrakas, Kurt Wood
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Patent number: 11084926Abstract: The present document describes a polyamide hot-melt resin having a chemical structure consisting of dimerized fatty acids and diamines, loaded with an active ingredient. The dimerized fatty acids may have 12 to 24 carbons and the diamines may have 2 to 14 carbons. The amine residual functional groups and acid residual functional groups within the polyamide hot-melt resin may have a [NH2]/[COOH] molar ratio below 5, and the active ingredient may be incorporated in quantities of between about 0.01 and about 55% by weight of weight of the resin. The present document also describes items molded from the polyamide hot-melt resins, and processes of preparing the polyamide hot-melt resins.Type: GrantFiled: December 14, 2018Date of Patent: August 10, 2021Assignee: AB7 INNOVATION S.A.S.U.Inventors: René Chelle, David Nguyen, Arnaud Vilbert
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Patent number: 9040612Abstract: A caulk composition having a first color upon application and a second color upon formation of a skin, wherein said skin is suitable for application of a surface treatment.Type: GrantFiled: May 15, 2014Date of Patent: May 26, 2015Assignee: Red Devil, IncorporatedInventors: Larry G. Brandon, Michael Gabel, Curtis True, Lori S. Gonzales
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Publication number: 20150104663Abstract: The invention concerns an olefinically unsaturated radial styrenic block copolymer having the general formula A-B—Y—(B-A)n wherein each A is independently a polymer block composed of at least 90 mol. % of an alkenyl aromatic hydrocarbon, each B is independently a polymer block composed of at least 90 mol. % of one or more conjugated dienes, Y is the remnant of a coupling agent, and n is an integer from 2 to 5. The invention is also an improved vulcanizer-free latex comprising water and the olefinically unsaturated radial styrenic block copolymer. Moreover, the invention concerns a process for preparing articles by coagulation dipping from the improved latex and dipped goods made from such latex.Type: ApplicationFiled: October 9, 2014Publication date: April 16, 2015Applicant: KRATON POLYMERS U.S. LLCInventors: Wouter DE JONG, Maarten TROMP
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Patent number: 8772389Abstract: A caulk composition having a first color upon application and a second color upon formation of a skin, wherein said skin is suitable for application of a surface treatment.Type: GrantFiled: November 23, 2011Date of Patent: July 8, 2014Assignee: Red Devil IncorporatedInventors: Larry G. Brandon, Michael Gabel, Curtis True, Lori S. Gonzales
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Patent number: 8680188Abstract: The invention relates to reaction products of amines with polymers containing dicarboxylic acids anhydride groups, method for the production thereof and use thereof as a dispersing additive for pigments. The invention also relates to solid pigment preparations containing said reaction products.Type: GrantFiled: May 16, 2013Date of Patent: March 25, 2014Assignee: Clariant Finance (BVI) LimitedInventors: Carsten Plueg, Jesus Pitarch Lopez, Alexander Woerndle
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Patent number: 8604113Abstract: The photosensitive resin composition of the present invention includes an alkali solubility resin including molecules each composed of a main chain having one end and the other end opposite to the one end, an organic group bonded to the one end thereof, the organic group having at least one unsaturated group, and a substituent group bonded to at least one of the other end of the main chain and a branch thereof, the substituent group having a cyclic chemical structure containing nitrogen atoms, and a photosensitive agent. Further, the insulating film of the present invention is composed of a cured product of the above photosensitive resin composition. Furthermore, the protective film of the present invention is composed of a cured product of the above photosensitive resin composition. Moreover, the Electronic equipment of the present invention is provided with the above protective film and insulating film.Type: GrantFiled: November 13, 2007Date of Patent: December 10, 2013Assignee: Sumitomo Bakelite Co., Ltd.Inventor: Hideyuki Toyoda
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Publication number: 20130288063Abstract: A curable resin composition which can achieve a cured product in which the generation of cracks upon curing is suppressed and which has both a low thermal expansion rate and a low water absorbability is provided. The curable resin composition comprises: at least a cyanate ester compound (A) represented by the following formula (I); a metal complex catalyst (B); and an additive (C), wherein the additive (C) contains any one or more selected from the group consisting of a compound represented by the following general formula (II), a compound represented by the following general formula (III), and a tertiary amine.Type: ApplicationFiled: January 31, 2012Publication date: October 31, 2013Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.Inventors: Makoto Tsubuku, Taketo Ukeno, Masayuki Katagiri, Tomoo Tsujimoto
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Patent number: 8466219Abstract: The invention relates to reaction products of amines with polymers containing dicarboxylic acids anhydride groups, method for the production thereof and use thereof as a dispersing additive for pigments. The invention also relates to solid pigment preparations containing said reaction products.Type: GrantFiled: March 31, 2009Date of Patent: June 18, 2013Assignee: Clariant Finance (BVI) LimitedInventors: Carsten Plueg, Jesus Pitarch Lopez, Alexander Woerndle
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Publication number: 20130130064Abstract: An aspect of the present invention relates to an alumina dispersion, which is employed to manufacture a particulate magnetic recording medium, comprises alumina, a solvent, and a dispersing agent in the form of an aromatic hydrocarbon compound having a phenolic hydroxyl group, and essentially does not comprise ferromagnetic powder.Type: ApplicationFiled: November 20, 2012Publication date: May 23, 2013Applicant: FUJIFILM CORPORATIONInventor: Fujifilm Corporation
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Patent number: 8273851Abstract: A method for producing a polyimide film comprises the steps of: preparing a polar organic solvent solution of a polyimide precursor obtained by mixing a tetracarboxylic acid dianhydride compound and a diamine compound; adding a dehydrating agent and an imidization catalyst to the polar organic solvent solution so as to prepare a resin solution composition; and drying the resin solution composition by heating so as to imidize the resin solution composition after flowing the resin solution composition onto a support in a casting manner, wherein diethyl pyridine is used as the imidization catalyst. According to the production method, it is possible to obtain a polyimide film which is highly productive and is excellent in the film quality such as the mechanical property, the adhesive strength, and the like.Type: GrantFiled: August 17, 2011Date of Patent: September 25, 2012Assignee: Kaneka CorporationInventor: Katsunori Yabuta
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Patent number: 8273822Abstract: The present invention pertains to a reversible thermochromic system comprising a ?-phenylvinylketone or a ?-phenyl polyacetylenyl ketone with at least one acidic hydrogen and a base and to a reversible thermochromic composition comprising the reversible thermochromic system and a carrier material and to novel substituted ?-phenylvinylketones or ?-phenyl polyacetylenyl ketones with at least one acidic hydrogen.Type: GrantFiled: January 25, 2007Date of Patent: September 25, 2012Assignee: BASF SEInventors: Mirko Rossi, Graziano Zagnoni, Manuele Vitali, Dario Lazzari, Walter Fischer
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Patent number: 8227531Abstract: Crosslinked ultra-high molecular weight polyethylene (UHMW-PE) is disclosed, as well as molded bodies made from the UHMW-PE and a process for making such UHMWE-PE.Type: GrantFiled: November 17, 2005Date of Patent: July 24, 2012Inventors: Klaus Lederer, Christian Wolf
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Patent number: 8178594Abstract: An antioxidant combined with UHMWPE prior to subjecting the UHMWPE to crosslinking irradiation. In one exemplary embodiment, the antioxidant is tocopherol. After the antioxidant is combined with the UHMWPE, the resulting blend may be formed into slabs, bar stock, and/or incorporated into a substrate, such as a metal, for example. The resulting product may then be subjected to crosslinking irradiation. In one exemplary embodiment, the UHMWPE blend is preheated prior to subjecting the same to crosslinking irradiation. Once irradiated, the UHMWPE blended product may be machined, packaged, and sterilized in accordance with conventional techniques.Type: GrantFiled: December 14, 2010Date of Patent: May 15, 2012Assignee: Zimmer, Inc.Inventors: Alicia Rufner, John Knight, Toni Rowe, Dirk Pletcher, Ray Gsell, Werner Schneider, Hallie E. Brinkerhuff
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Patent number: 8129440Abstract: An antioxidant combined with UHMWPE prior to subjecting the UHMWPE to crosslinking irradiation. In one exemplary embodiment, the antioxidant is tocopherol. After the antioxidant is combined with the UHMWPE, the resulting blend may be formed into slabs, bar stock, and/or incorporated into a substrate, such as a metal, for example. The resulting product may then be subjected to crosslinking irradiation. In one exemplary embodiment, the UHMWPE blend is preheated prior to subjecting the same to crosslinking irradiation. Once irradiated, the UHMWPE blended product may be machined, packaged, and sterilized in accordance with conventional techniques.Type: GrantFiled: October 14, 2009Date of Patent: March 6, 2012Assignee: Zimmer, Inc.Inventors: Alicia Rufner, John Knight, Toni Rowe, Dirk Pletcher, Ray Gsell, Werner Schneider, Hallie E. Brinkerhuff
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Publication number: 20120034486Abstract: Disclosed is a rubber composition for a conveyor belt, which is characterized by containing 0.5-3 parts by weight of zinc dimethacrylate and 1.1-4.5 parts by weight of neodecanoic acid cobalt boride per 100 parts by weight of the rubber component. Also disclosed is a conveyor belt in which a galvanized steel cord that is covered with an adhesive rubber layer formed from the rubber composition is used as the core body. The rubber composition has excellent adhesion to a galvanized steel cord and good vulcanization rate. The conveyor belt using the rubber composition has excellent durability and productivity.Type: ApplicationFiled: April 19, 2010Publication date: February 9, 2012Applicant: Bridgestone CorporationInventor: Hiroki Nakano
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Publication number: 20110184097Abstract: The invention relates to pigment preparations containing (i) at least one organic and/or inorganic pigment, and (ii) a dispersant of formula (I) or (II), or mixtures of dispersants of formulae (I) and (II), wherein A is C2-C4 alkylene and B is a C2-C4 alkylene different from A, D is propylene, and Q is SO3, CH2—COO, PO3M or QM.Type: ApplicationFiled: July 17, 2009Publication date: July 28, 2011Applicant: CLARIANT FINANCE (BVI) LIMITEDInventors: Bjoern Fechner, Carsten Schaefer, Alexander Woerndle, Dietmar Beck
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Publication number: 20110107803Abstract: The invention relates to an aqueous pigment preparation containing (A) at least one organic and/or inorganic pigment, (B) a dispersant of formula (I), (II), (III) or (IV) or mixtures of the dispersants of formula (I), (II), (III) or (IV), (C) optionally wetting agents, (C) optionally other surfactants and/other dispersants, (E) optionally at least one organic solvent or at least one hydrotropic substance, (F) optionally other additives commonly used to produce aqueous pigment dispersions.Type: ApplicationFiled: July 23, 2008Publication date: May 12, 2011Applicant: CLARIANT FINANCE (BVI) LIMITEDInventors: Bjoern Fechner, Carsten Schaefer, Alexander Woerndle
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Publication number: 20110046274Abstract: The invention relates to reaction products of amines with polymers containing dicarboxylic acids anhydride groups, method for the production thereof and use thereof as a dispersing additive for pigments. The invention also relates to solid pigment preparations containing said reaction products.Type: ApplicationFiled: March 31, 2009Publication date: February 24, 2011Applicant: CLARIANT FINANCE (BVI) LIMITEDInventors: Carsten Plueg, Jesus Pitarch Lopez, Alexander Woerndle
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Patent number: 7847003Abstract: The present invention provides a positive photosensitive resin composition which can form a cured film excellent in process resistance such as heat resistance, solvent resistance or long-time baking resistance and transparency, and which is excellent in photosensitive properties such as resolution and sensitivity, and which has high storage stability and a wide process margin. Further, the present invention provides a positive photosensitive resin composition having such high reliability that no deterioration of electrical characteristics will be led in its application for liquid crystal display devices.Type: GrantFiled: July 28, 2004Date of Patent: December 7, 2010Assignee: Nissan Chemical Industries, Ltd.Inventors: Shinsuke Tsuji, Yosuke Iinuma, Shinya Arase
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Publication number: 20100305245Abstract: The present invention is directed to a color-pigmented paint composition with high hiding power, comprising a solvent or a solvent mixture and a.) based on the total formulation, 1% to 80% by weight of a polysilazane of the formula (1) —(SiR?R?—NR??)n???(1) and b.) based on the total formulation 1% to 15% by weight, particularly 2% to 8% by weight, of one or more pigments wherein R?, R?, and R?? are alike or different and independently of one another are hydrogen or an unsubstituted or substituted alkyl, aryl, vinyl or (trialkoxysilyl)alkyl radical, n being an integer and n having a magnitude such that the polysilazane has a number average molecular weight of 150 to 150 000 g/mol.Type: ApplicationFiled: May 15, 2008Publication date: December 2, 2010Applicant: CLARIANT INTERNATIONAL LTD.Inventors: Stefan Brand, Andreas Dierdorf, Hubert Liebe, Frank Osterod, Markus Mahn, Ken Ryan
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Publication number: 20100227950Abstract: Provided herein are compositions useful as ink or coatings which contain novel dispersants that are capable of dispersing pigments which are traditionally difficult to disperse while maintaining acceptable levels of viscosity. Use of dispersants as taught herein enables the preparation of a wide variety of inks and coatings having high pigment loading and existing within a conventionally-useful viscosity range.Type: ApplicationFiled: August 9, 2006Publication date: September 9, 2010Applicant: Huntsman Petrochemical CorporationInventors: Duy T. Nguyen, Howard P. Klein
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Patent number: 7776947Abstract: A golf ball composition having a copolymer with an acid content modified by a nucleating agent is described. The nucleating agent modifies the flexural modulus of the acid copolymer.Type: GrantFiled: October 17, 2008Date of Patent: August 17, 2010Assignee: Acushnet CompanyInventor: Michael D. Jordan
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Patent number: 7695818Abstract: Pressure sensitive adhesives and methods, wherein the adhesives include a silicone tackifying resin and a polydiorganosiloxane polyurea copolymer. The tack of these adhesives is improved by the use of a processing aid, such as a plasticizer.Type: GrantFiled: August 10, 2005Date of Patent: April 13, 2010Assignee: 3M Innovative Properties CompanyInventors: Audrey A. Sherman, Kurt C. Melancon, Anthony M. Kremer
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Publication number: 20080227894Abstract: A pigment dispersion comprising a colour pigment and a polymeric dispersant having at least one pending chromophore group covalently bound to the polymeric backbone of the polymeric dispersant through a linking group wherein the at least one pending chromophore group is a derivative from a colour pigment selected from the group consisting of monoazo pigments, disazo pigments, ?-naphtol pigments, naphtol AS pigments, azo pigment lakes, benzimidazolone pigments, disazo condensation pigments, metal complex pigments, isoindolinone pigments, isoindolinine pigments, phthalocyanine pigments, quinacridone pigments, diketopyrrolo-pyrrole pigments, thioindigo pigments, anthraquinone pigments, anthrapyrimidine pigments, indanthrone pigments, flavanthrone pigments, pyranthrone pigments, anthanthrone pigments, isoviolanthrone pigments, aluminium pigment lakes, dioxazine pigments, triarylcarbonium pigments and quinophthalone pigments; the at least one pending chromophore group is a chromophore group occurring as a side grType: ApplicationFiled: June 23, 2006Publication date: September 18, 2008Applicant: AGFA GRAPHICS NVInventors: Johan Loccufier, Wojciech Jaunky, Geert Deroover, Lambertus Groenendaal
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Patent number: 7335693Abstract: The invention relates to an antioxidant for polyamides containing a sterically hindered phenol of formula (I) as a single primary antioxidant, wherein n is a mixture of whole numbers from 1-5. The invention also relates to compositions containing a polyamide and a compound of formula (I) as a single primary antioxidant.Type: GrantFiled: July 11, 2002Date of Patent: February 26, 2008Assignee: Degussa AGInventors: Hark-Oluf Asbahr, Thomas Bomba
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Patent number: 7291388Abstract: An adhesive optical component comprising an optical component and a layer which comprises an adhesive composition, the adhesive composition being disposed on at least one face of the optical component by coating a solution of the adhesive composition on the face of the optical component and drying the solution to form a laminate, the adhesive composition comprising (A) a copolymer of (meth)acrylic esters, (B) a crosslinking agent and (C) a phenol compound.Type: GrantFiled: September 11, 2006Date of Patent: November 6, 2007Assignee: Lintec CorporationInventors: Takashi Suzuki, Kenji Sato, Kazuhiro Kon, Toshio Sugizaki
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Patent number: 7179528Abstract: An adhesive sheet including an adhesive composition disposed on at least one face of a film of acetyl cellulose, the adhesive sheet being produced by coating a solution of the adhesive composition on the face of the film and drying the solution to form a laminate, the adhesive composition containing (A) a copolymer of (meth)acrylic esters,(B) a crosslinking agent and (C) a phenol compound. The adhesive composition in the adhesive sheet serves to suppress degradation of easily hydrolyzable materials by hydrolysis, improve durability and provides excellent stress relaxation without using plasticizers.Type: GrantFiled: February 17, 2004Date of Patent: February 20, 2007Assignee: Lintec CorporationInventors: Takashi Suzuki, Kenji Sato, Kazuhiro Kon, Toshio Sugizaki
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Patent number: 6890399Abstract: Polymerizable compositions for use in or as adhesives, sealants and/or coatings are disclosed herein. The compositions include a (meth)acrylate component together with a dye substantially dissolved in the (meth)acrylate component which imparts a first color to the (meth)acrylate component. Upon curing, a resultant cured composition has a second color. The invention also relates to a method of detecting substantially full cure of the polymerization of the compositions.Type: GrantFiled: January 18, 2002Date of Patent: May 10, 2005Assignee: Henkel CorporationInventor: Stan Wojciak
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Patent number: 6846866Abstract: The invention provides polyurethane containing a) a first additive comprising at least one mono-hindered hydroxyphenyl group and having a molecular weight of at least about 300 Daltons; b) a second additive selected from the group consisting of i) condensation polymers of p-cresol and divinyl benzene and ii) compounds comprising at least one unsymmetrically di-hindered hydroxyphenyl group and having a molecular weight of at least about 300 Daltons; and c) an inorganic chlorine-resist additive. The polyurethane of the invention exhibits improved resistance to degradation by chlorine and by atmospheric fumes.Type: GrantFiled: June 3, 2002Date of Patent: January 25, 2005Assignee: Invista North America S.a.r.L.Inventors: Nathan E. Houser, Gordon W. Selling
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Patent number: 6815076Abstract: A pressure-sensitive adhesive tape having a cured layer of a silicone pressure-sensitive adhesive composition containing a phenolic antioxidant is attached to an adherend of metal, typically copper for bonding or masking purposes. Even after exposure to elevated temperatures of 150-250° C., the tape can be smoothly peeled from the adherend without leaving any adhesive residue.Type: GrantFiled: September 25, 2002Date of Patent: November 9, 2004Assignee: Shin-Etsu Chemical Co. Ltd.Inventor: Shunji Aoki
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Patent number: 6720375Abstract: An adhesive composition comprising a crosslinked product of (A) a copolymer of (meth)acrylic esters and (B) a crosslinking agent, and (C) a phenol derivative. An adhesive composition comprising a crosslinked product of (D) a copolymer of (meth)acrylic esters having a weight-average molecular weight of 500,000 to 2,500,000 or (D′) a mixture of the copolymer (D) and an oligomer of (meth)acrylic esters having a weight-average molecular weight of 1,000 to 10,000 in a ratio of amounts of 100:5 to 100:100 by weight and (E) a crosslinking agent, and (F) a radical scavenger. An adhesive optical component comprising a layer of the adhesive composition disposed on at least one face of an optical component. The adhesive composition serves to suppress degradation of easily hydrolyzable materials by hydrolysis, improve durability and provide excellent stress relaxation without plasticizers.Type: GrantFiled: April 9, 2001Date of Patent: April 13, 2004Assignee: Lintec CorporationInventors: Takashi Suzuki, Kenji Sato, Kazuhiro Kon, Toshio Sugizaki
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Patent number: 6680349Abstract: An organohybrid-based damping material for controlling unwanted vibration and noise, an organic damping improver exhibiting piezoelectric, dielectric and electroconductive effects, and their producing methods, are provided. The damping material comprises a polymer matrix having a polar side chain and a damping improver composed of a compound containing basic nitrogen and a phenol-based compound. The damping material shows an excellent damping properties, alleviates the functional deterioration, and is applicable to different application temperature regions and wide areas.Type: GrantFiled: April 2, 2001Date of Patent: January 20, 2004Assignee: Masao SumitaInventors: Cheng Zhang, Tadashi Miura, Masao Sumita
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Patent number: 6531528Abstract: A ready to use patch repair product is disclosed that includes a color change indicator therein. After the product has dried the color changes to signal that, if desired, the worker can perform other operations such as painting, sanding, etc on the surface. In one aspect of the invention, a substantially ammonia and ammonium salt free latex polymer is used as the resin binder component. This provides enhanced color stability in the stored product.Type: GrantFiled: April 2, 2002Date of Patent: March 11, 2003Assignee: DAP Products Inc.Inventor: Ronald D. Kurp
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Patent number: 6506827Abstract: A rubber composition which contains the following components (A)-(D) and is free from any zinc-containing compounds that would cause trouble at the time of use of the final products: (A): an ethylene-&agr;-olefin copolymer rubber and/or ethylene-&agr;-olefin-non-conjugated diene copolymer rubber, (B): magnesium oxide, (C): carbon black, (D): at least one compound selected from the following compounds (D-1)-(D-3): (D-1): compounds containing a thio group and a carboxylic acid ester group in the molecule, (D-2): compounds containing a phenolic hydroxyl group in the molecule, (D-3): compounds containing an acyl group and an imino group in the molecule, provides vulcanized products including radiator hoses, heater hoses and radiator packings with improved age resistance.Type: GrantFiled: March 8, 2001Date of Patent: January 14, 2003Assignee: Sumitomo Chemical Company, LimitedInventor: Sadayuki Nakano
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Patent number: 6420464Abstract: Resin compositions having a low viscosity, a low hygroscopicity, high adhesive properties and a high heat resistance as well as being light in weight and excellent in mechanical properties are provided. The resin compositions include polyhydric phenol compounds represented by the formula (1) and epoxy resins represented by the formula (3).Type: GrantFiled: April 24, 2000Date of Patent: July 16, 2002Assignee: Nippon Kayaku Kabushiki KaishaInventors: Kenichi Kuboki, Yoshitaka Kajiwara, Eiko Watanabe, Yoshio Shimamura, Katsuhiko Oshimi
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Patent number: 6300395Abstract: A hydrophilic coating having excellent hydrophilicity, which can prevent offensive odor generation, and which has a good antibacterial performance and formability, is formed on an aluminum-containing metal material by coating an aqueous hydrophilization treating liquid containing (A) a glycidyl group-containing, water-soluble organic compound; (B) a water-soluble polymeric or polymerizable compound having a tert-amino group and at least one hydrophilic functional group selected from sulfonic, phosphonic, carboxyl, polyalkyleneglycol, hydroxyl and amide groups; and (C) an antibacterial agent not decomposing at 100° C. or lower, on an aluminum-containing metal material; and heat-drying the coated liquid.Type: GrantFiled: December 5, 1995Date of Patent: October 9, 2001Assignee: Nikon Parkerizing, Co., Ltd.Inventors: Ryosuke Sako, Tomohiro Ohsako, Tatsuo Hibino
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Patent number: 6069199Abstract: The object of the invention is to provide a liquid anti-scaler for coating polymerizing reactors obtained by a condensation reaction of naphthol with an aldehydic cross-linking product, wherein the cross-linking product is the reaction product of hydrosulfite and formaldehyde. It contains hydrosulfite and/or radical bisulfites and/or bisulfite. The condensate is made in such a way that in the absence of oxygen, it is in the form of liquid of clear transparent color.Type: GrantFiled: February 13, 1998Date of Patent: May 30, 2000Assignee: C.I.R.S. S.p.A.Inventors: Francesco Carlin, Mario Sattin
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Patent number: 5852090Abstract: The antioxidants of the formulae I and II ##STR1## in which R.sub.1 is methyl or H,R.sub.2 is H or methyl,R.sub.3 is H or C.sub.1 -C.sub.4 alkyl,R.sub.4 is C.sub.1 -C.sub.5 alkyl,R.sub.5 is C.sub.1 -C.sub.5 alkyl, and the group Z is CH.sub.2 or O,are particularly suitable for stabilizing styrene (co)polymers.Type: GrantFiled: January 29, 1997Date of Patent: December 22, 1998Assignee: Ciba Specialty Chemicals CorporationInventors: Hans Rudolf Meier, Andreas Muhlebach
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Patent number: 5760119Abstract: A method of stabilization of a melt viscosity of aliphatic- and/or aromatic homo- and/or co-polyesters containing catalysts and/or initiators, involves adding a masking agent which is tropon, .alpha.-tropolon, thujaplicin, pupurogallin or mixtures thereof to a melt resulting during synthesis of polyesters or during regeneration of polyesters.Type: GrantFiled: October 2, 1996Date of Patent: June 2, 1998Assignee: Fraunhofer-Gesellschaft zur Forderung der Angewandten Forschung e.V.Inventors: Gerald Rafler, Olaf Wachsen, Karl-Heinz Reichert
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Patent number: 5672574Abstract: Compositions comprising compounds of formula ##STR1## wherein the radicals R and R.sub.1 to R.sub.5 are as defined in claim 1, are described.Some of those compounds are novel. They are suitable for the stabilization of organic materials.Type: GrantFiled: September 20, 1995Date of Patent: September 30, 1997Assignee: Ciba-Geigy CorporationInventors: Samuel Evans, Stephan Allenbach
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Patent number: 5585425Abstract: A thermochromic opaque/transparent composition is capable of exhibiting change in transparency together with change in color in response to temperature variation, a laminate member employing the same, and a three-dimensional article capable of concealing and revealing the interior, utilizing the laminate member. A thermochromic opaque/transparent composition is composed of dispersion, in vinyl chloridevinyl acetate copolymer matric resin, which has been obtained by blending with hindered amine compound selected from piperidine derivatives within a particle size range of 0.1 to 2.0 .mu.Type: GrantFiled: March 23, 1995Date of Patent: December 17, 1996Assignee: The Pilot Ink Co., Ltd.Inventors: Tsutomu Kito, Kuniyuki Senga, Hiroyuki Hayashi
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Patent number: 5476894Abstract: The invention relates to an improved color paste for the manufacture of internally printed, curved laminated glass panes.Prior art color pastes cause problems with respect to adhesion and optical accuracy or require a higher technical complexity during the baking process for producing internally printed laminated glass panes.Color pastes which constitute the invention and overcome the previous drawbacks are characterized by a print medium which contains 5,6,8-trihydroxy-1,4-naphthoquinone in addition to solvents.Type: GrantFiled: November 4, 1994Date of Patent: December 19, 1995Assignee: Cerdec Aktiengesellshcaft Keramische FarbenInventor: Adalbert Huber
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Patent number: 5466732Abstract: A polyimide precursor solution which comprises a polyimide precursor and a solvent wherein the polyimide precursor and the solvent are not solated strongly. A process for the production of the polyimide precursor solution, as well as moldings and coatings obtained from the solution.The polyimide precursor solution of the present invention has excellent storage stability, and the solvent can be removed easily at the time of the production of moldings or coatings. According to the process of the present invention, the polyimide precursor solution can be produced easily using simple apparatus and an inexpensive solvent(s) having low toxicity. The polyimide molding obtained from the polyimide precursor solution has excellent uniformity and no residual solvent. The polyimide coating obtained from the polyimide precursor solution has excellent uniformity, no residual solvent and excellent adhesiveness to a base material.Type: GrantFiled: March 25, 1994Date of Patent: November 14, 1995Assignee: Unitika Ltd.Inventors: Isao Tomioka, Takeshi Nakano, Mikio Furukawa, Yoshiaki Echigo
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Patent number: 5410015Abstract: Thermoplastic polyamide molding materials contain, as essential components,A) from 39 to 99% by weight of a polyamide or a mixture of different polyamides andB) from 1 to 30% by weight of a phenol of the general formula IR.sub.3 E Iand E is a trivalent, aliphatic, C.sub.1 -C.sub.10 -hydrocarbon radical, triazinetriyl or a trivalent C.sub.6 - or C.sub.10 -aryl radical, andc) from 0 to 60% by weight, based on the amount of polyamide, of fibrous or particulate fillers or a mixture thereof.Type: GrantFiled: July 6, 1993Date of Patent: April 25, 1995Assignee: BASF AktiengesellschaftInventors: James Hurley, Walter Goetz, Gerd Blinne
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Patent number: 5360857Abstract: A polymer scale preventive agent for use in polymerization of vinyl chloride monomer or a monomer mixture containing vinyl chloride monomer as a major component, comprising:(A) a naphthoquinone natural dye and(B) a polyvinyl alcohol with a saponification degree of at least 50 mol %. The polymer scale preventive agent is formed as coating on the inner wall, etc. of a polymerization vessel. Deposition of polymer scale can be always effectively prevented. Polymers with a high whiteness can be produced, and products formed from the polymer have only a small number of fish eyes.Type: GrantFiled: March 17, 1993Date of Patent: November 1, 1994Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Hajime Kitamura, Susumu Ueno, Mikio Watanabe, Masahiro Usuki, Toshihiko Nakano
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Patent number: 5306752Abstract: A cyanoacrylate monomer adhesive formulation which has improved thermal properties resulting from the inclusion in the formulation of an effective amount for enhancing the thermal resistance of the cured polymer of a compound of the formula: ##STR1## where R is C(CN).sub.2, C(CO.sub.2 R.sup.e).sub.2, C(SO.sub.2 R.sup.e).sub.2 or C(Ph).sub.2 ; R.sup.a, R.sup.b, R.sup.c and R.sup.d are independently H, monovalent hydrocarbon, halogen or strong electron withdrawing groups; or two of R.sup.a, R.sup.b, R.sup.c and R.sup.d combined form a fused hydrocarbon ring; R.sup.1 is C(CN).sub.2, C(CO.sub.2 R.sup.e).sub.2, C(SO.sub.2 R.sup.e).sub.2 or C(Ph).sub.2, or R.sup.1 and R.sup.b combined form a fused ring having a C(CN).sub.2, C(CO.sub.2 R.sup.e).sub.2, C(SO.sub.2 R.sup.e).sub.2 or C(Ph).sub.2 group in conjugation with R; R.sup.e is alkyl and Ph is phenyl orR and R.sup.1 are both O; and R.sup.a, R.sup.b, R.sup.c and R.sup.Type: GrantFiled: October 9, 1992Date of Patent: April 26, 1994Assignee: Loctite CorporationInventor: Shabbir Attarwala
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Patent number: 5216049Abstract: The present invention relates to an antidegradant system comprised of (A) an antidegradant selected from the group consisting of phenolic antidegradants, amine antidegradants and mixtures thereof; and (B) a unique polymerizable synergist. In addition, there is disclosed a stabilized polymer comprising (A) a polymer selected from the group consisting of (1) homopolymers and copolymers of monoolefins; (2) natural rubber; and (3) synthetic rubber derived from a diene monomer; (B) from about 0.05 to about 10 parts by weight based upon 100 parts of polymer of an antidegradant selected from the group consisting of phenolic antidegradants, amine antidegradants and mixtures thereof; and (C) from about 0.05 to about 20 parts by weight based upon 100 parts of polymer of a unique polymerizable aromatic sulfide synergist.Type: GrantFiled: September 18, 1992Date of Patent: June 1, 1993Assignee: The Goodyear Tire & Rubber CompanyInventors: Dane K. Parker, Gerald O. Schulz
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Patent number: 5110849Abstract: The present invention concerns a thermoplastic polyester resin composition comprising a thermoplastic polyester and a metal alcoholate salt of an aromatic alcohol containing a hydroxy group directly attached to the aromatic ring as the essential ingredient, having a high crystallization rate, excellent moldability upon molding at low temperature, less molecular weight reduction during production and molding of the resin composition, and satisfactory melt degradation stability and hydrolysis resistance.Type: GrantFiled: August 10, 1990Date of Patent: May 5, 1992Assignee: Toray Industries, Inc.Inventors: Hiroo Karasawa, Kiichi Kometani, Kiyokazu Nakamura