Silicon Reactant Contains A Fused, Bridged, Or Cycloaliphatic Ring Patents (Class 528/40)
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Patent number: 5773497Abstract: Disclosed is a crosslinking resin composition comprising: (A) a carboxyl group-containing resin as a main agent, having a number average molecular weight of from 1,000 to 40,000 and an acid value of from 10 to 400 mg KOH/g; (B) a cyclic or chain silicone compound as a curing agent, having a number average molecular weight of from 350 to 8,000 and containing at least two epoxy groups in one molecule thereof, wherein the silicone compound is free of a silanol group, a hydrolyzable silyl group and a vinyl polymer structure, and wherein the silicone compound has a siloxy group-containing skeleton; and (C) a medium. The crosslinking resin composition of the present invention not only exhibits excellent storage stability, but is also capable of providing, upon being crosslinked, a cured resin having excellent gloss, weatherability, acid resistance, solvent resistance, water repellency and stain resistance.Type: GrantFiled: September 16, 1996Date of Patent: June 30, 1998Assignee: Asahi Kasei Kogyo Kabushiki KaishaInventors: Kaoru Ueyanagi, Masahiro Yamamoto
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Patent number: 5773192Abstract: Disclosed are an organic silicon compound having a repeating unit represented by general formula (I) shown below, a resist, a thermal polymerization composition and a photopolymerization composition containing the organic silicon compound, ##STR1## wherein R.sup.1 is a t-butyl group or a pyranyl group, R.sup.2 is an hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 24 carbon atoms, a substituted or unsubstituted aryl group having 1 to 24 carbon atoms, or a substituted or unsubstituted aralkyl having 7 to 24 carbon atoms, R.sup.3 is a substituted or unsubstituted alkyl group having 1 to 24 carbon atoms, a substituted or unsubstituted aryl group having 6 to 24 carbon atoms, a substituted or unsubstituted aralkyl group having 7 to 24 carbon atoms or an alkoxyl group, and k represents an integer from 0 to 4.Type: GrantFiled: February 3, 1997Date of Patent: June 30, 1998Assignee: Kabushiki Kaisha ToshibaInventors: Shinji Murai, Yoshihiko Nakano, Ken Uchida, Shuji Hayase
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Patent number: 5756628Abstract: The present invention provides an inorganic-organic hybrid material having both the characteristics of the inorganic material and the characteristics of the organic material. The material has a lamellar structure formed by piling a sheet of silicon tetrahedrons upon a sheet of titanium octahedrons. In this lamellar structure, an organic group is bonded to a center atom of a tetrahedron via a covalent bond. The organic group can be polymerized to make the organic phyllotitanosilicate a tough and hard coating material. The hybrid material of the present invention thus has both the characteristics, such as high hardness and heat resistance, of the constitutive inorganic material and the characteristics, such as flexibility and filmability at room temperature, of the constitutive organic material, and further has an excellent UV-blocking property.Type: GrantFiled: March 10, 1997Date of Patent: May 26, 1998Assignee: Kabushiki Kaisha Toyota Chuo KenkyushoInventors: Masaaki Tani, Yoshiaki Fukushima, Kazuo Okamoto, Kazuhisa Yano
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Patent number: 5739174Abstract: A photocurable composition comrpising: (a) a photopolymerizable silane or siloxane containing epoxycylohexyl group(s), (b) a photoinitiator, and (c) a photosensitizer, wherein the photosensitizer comprises at least one material selected from the group consisting of sulfolene, sulfolene derivatives, isatin and isatin derivatives.Type: GrantFiled: May 17, 1996Date of Patent: April 14, 1998Assignee: Minnesota Mining and Manufacturing CompanyInventor: Fujio Hara
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Patent number: 5734001Abstract: A novel fluorosilicone compound having at least two hydroxyl groups in its molecule and a curable composition containing such a compound and a commercially available general purpose curing agent; the compound is used suitably for a lubricant and a fiber treating agent, and the curable composition is used suitably for a mold releasing agent, a water- and oil-repelling agent, a stain-proof coating agent, a non-tackifying coating agent, a coating agent for optical use and a sealant.Type: GrantFiled: November 20, 1996Date of Patent: March 31, 1998Assignee: Daikin Industries, Ltd.Inventors: Fumihiko Yamaguchi, Tatsuya Otsuka, Masayuki Yamana, Masato Kashiwagi, Hirotoshi Sakashita
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Patent number: 5721290Abstract: Oxo acids having the formula:HOOC(((CH2).sub.s O).sub.t ((CH2).sub.u O).sub.v R"where R" is a monovalent radical selected from the group consisting of hydrogen, one to forty carbon alkyl, alkylene, alkynylene, aromatic, alkylaromatic or carboxyl groups and the subscripts s, t, u and v are zero or positive subject to the limitation that at least s and t or u and v must be positive reacted with epoxy functional silicones according to scheme: ##STR1## at a molar level that is less than stoichiometric with respect to the epoxy functionality present improve the miscibility of certain photo-catalysts in the epoxy functional silicone.Type: GrantFiled: November 26, 1996Date of Patent: February 24, 1998Assignee: General Electric CompanyInventors: Richard P. Eckberg, Robert F. Agars
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Patent number: 5708078Abstract: Modified natural-resin acid esters comprising units of compounds of each of the groups A) natural resins and natural-resin acids, B) aldehydes and aldehyde acetals, C) alcohols having at least two hydroxyl groups, D) metal salts and, if desired, of compounds of one or more of the groups E) .alpha.,.beta.-ethylenically unsaturated carboxylic acids and their anhydrides, F) fatty acids and fatty acid esters, G) ethylenically unsaturated hydrocarbon resins are suitable in pigment dispersions and pigment concentrates for printing inks. The natural-resin acid esters contain substantially no phenol or phenol-aldehyde condensation products.Type: GrantFiled: October 11, 1996Date of Patent: January 13, 1998Assignee: Vianova Resins GmbHInventors: Albert Bender, Astrid Giencke
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Patent number: 5708115Abstract: A method in which radical polymerization of a vinyl monomer is initiated by an ozonide group attached to a silane or a siloxane polymer. The method is particularly useful for preparing organic polymers having a silicone chain end, or for preparing wide ranges of silicone/organic polymers and copolymers with varied architecture, i.e., ABA block copolymers, comb polymers, star polymers, and hyper-branched polymers. In one embodiment, the method is carried out by simply heating a vinyl monomer in the presence of a silane containing ozonide functionality. The ozonide silane is obtained by exposing silanes or siloxanes having an alkyl group containing a double bond to ozone. Surprisingly, an ozonide attached to an organosilicon compound was found to be stable, and capable of initiating vinyl polymerization upon heating to moderate temperatures, i.e., about 70.degree. C.Type: GrantFiled: February 11, 1997Date of Patent: January 13, 1998Assignee: Dow Corning CorporationInventors: Daniel Graiver, Aaron Quoc Khieu, Binh Thanh Nguyen
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Patent number: 5703192Abstract: A new family of polyorganometallosiloxane-2- or -4-pyridine compounds are provided for corrosion resistant coatings on light metals such as aluminum, magnesium, zinc, steel and their allows. The novel compounds contain backbones modified by metal alkoxides, metallocenes and metallophthalocyanates where the metal is Zr, Ti, Mo, V, Hf, Nb, Si, B and combinations thereof. Methods of making the new compounds are also provided.Type: GrantFiled: November 29, 1995Date of Patent: December 30, 1997Assignee: Associated Universities, Inc.Inventor: Toshifumi Sugama
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Patent number: 5703137Abstract: The present invention relates to initiators for the polymerization and/or crosslinking, cationically and under photochemical and/or thermal activation and/or activation by a beam of electrons, of monomers and/or polymers containing organofunctional groups.The said initiators are of the type comprising an onium salt of an element from groups 15 to 17 of the Periodic Table (Chem & Eng News, Vol 63, N5, 26, of 4 Feb. 1985) and they are characterized in that they contain at least one polymerization and/or crosslinking accelerator chosen from .alpha.-hydroxylated carboxylic acid esters such as, for example, lactic acid esters. Another subject of the invention is compositions based on at least one cationically crosslinkable polyorganosiloxane and on at least one initiator.Type: GrantFiled: March 14, 1996Date of Patent: December 30, 1997Assignee: Rhone-Poulenc ChimieInventors: Christian Priou, Stuart Kerr, III
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Patent number: 5700581Abstract: The present invention discloses chip (die) bond adhesive formulations preferably comprising a siloxane containing epoxide preferably a diglycidyl ether derivative, an anhydride curing additive which is soluble in the epoxide without the use of a solvent, and, optionally comprising, and oligomeric/polymeric co-additive of the type poly(alkylacrylate or -methacrylate), in conjunction with thermal and electrically conductive fillers and conventional co-catalysts used for curing epoxy systems to provide reworkable epoxy adhesives. Also disclosed are adhesive formulations comprising a siloxane containing epoxide and a hydroxybenzophenone curing additive which is soluble in the epoxide without the use of a solvent. The chips can be bonded to the substrate by conventional heating and curing techniques. With epoxy adhesive compositions comprising polyacrylate additives, the die bonded assembly can be reworked by heating the assembly to about 180.degree. C. to 250.degree. C.Type: GrantFiled: June 26, 1996Date of Patent: December 23, 1997Assignee: International Business Machines CorporationInventors: Krishna G. Sachdev, Michael Berger, Mark S. Chace
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Patent number: 5696179Abstract: The invention provides a silane-oligomer (A) of the following formula:(R.sup.3)--X--(R.sup.1.sub.x)--Y--Si(R.sup.2).sub.3 ( 1)wherein R.sup.3 is a group having a functionality that can be polymerized through actinic radiation, R.sup.1.sub.x is a backbone-oligomer having a molecular weight of more than about 200, R.sup.2 is a hydrolyzable group, and X and Y are coupling groups. The invention also provides a glass coating composition containing the silane-oligomer.Type: GrantFiled: December 8, 1994Date of Patent: December 9, 1997Assignee: DSM, N.V.Inventor: Chander P. Chawla
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Patent number: 5688889Abstract: Process for conditioning textile materials in order to enable them to have, especially, a pleasant handle and a very low or even non-existent yellowing, characterized in that the textile materials are brought into contact with a composition comprising a polyorgano-siloxane having, per mole, at least one unit of general formula: ##EQU1## in which: R can represent a C.sub.1 -C.sub.4 alkyl radical;X can represent a hydrolysable radical;Z represents a residue containing (a) sterically hindered piperidyl group(s) of formulae: ##STR1## in which R.sup.1 is a divalent hydrocarbon radical, R'.sup.1 is a trivalent hydrocarbon radical, U and U' represent --O--, --NH-- or --N(alkyl)-, R.sup.2 can represent a C.sub.1 -C.sub.3 alkyl radical and R.sup.3 is H or R.sup.2,a and b are chosen from 0, 1 and 2,the sum a+b being not greater than 2.Type: GrantFiled: May 6, 1996Date of Patent: November 18, 1997Assignee: Rhone-Poulenc ChimieInventors: Edith Canivenc, Jose-Luis Roca-Ortega, Andrew Van Der Spuy
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Patent number: 5674938Abstract: Liquid polysiloxanes are used in defoamant preparations, as diffusion-resistant plasticizer oils, separation agents, or impregnation agents. The liquid polysiloxanes are obtained by reacting:(1) 100 parts by weight of the hydrolysis product of dimethyldichlorosilane having a viscosity of less than 200 mm.sup.2 /sec at 25.degree. C.;(2) 1-100 parts by weight of a polydiorganosiloxane having a viscosity of less than 200 mm.sup.2 /sec at 25.degree. C., of formula (I)R.sup.3.sub.c SiO.sub.(4-c)/2, (I)where each R.sup.3 is independently a substituted or unsubstituted hydrocarbon group with 1-30 carbon atoms, and c has mean value 1.9-3.0; and(3) 0.1-20 parts by weight of one or more compounds (a)-(d),where (a) is a silicon compound of formula (II)R.sup.4.sub.d SiX.sub.(4-d), (II)where R.sup.Type: GrantFiled: December 13, 1994Date of Patent: October 7, 1997Assignee: Huels Silicone GmbHInventors: Holger Rautschek, Rosemarie Guehne, Harald Schickmann
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Patent number: 5665850Abstract: Processes of preparing polymeric photoinitiators are disclosed. The polymers are prepared by either a hydrosilation reaction of a SiH containing siloxane or a ring opening reaction of an epoxy functional siloxane. The resulting polymeric photoinitiators are cationic polymers consisting of organometallic complex salts which are grafted onto a polyorganosiloxane backbone.Type: GrantFiled: November 14, 1996Date of Patent: September 9, 1997Assignee: Rhone-Poulenc ChimieInventor: Christian Priou
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Patent number: 5650474Abstract: A process for preparing an organic functional group-containing organopolysiloxane of the following average compositional formula (1)YmR.sup.1 nSi(OR.sup.2)pO.sub.(4-m-n-p)/2 (1)wherein Y represents an organic group having a functional group, R.sup.1 represents at least one monovalent substituted or unsubstituted hydrocarbon group, R.sup.2 represents a hydrogen atom, an alkenyl group and/or an alkenyl group, 0<m.ltoreq.1, 0.ltoreq.n<2, and 0.ltoreq.p.ltoreq.2 provided that 0<m+n+p.ltoreq.3. The organopolysiloxane is obtained by subjecting an organic functional group-containing alkoxysilane, with or without a functional group-free alkoxysilane, siloxane and/or silicone obtained from the group-free alkoxysiloxane and/or siloxane, to hydrolysis and polycondensation in the presence of a substantially neutral fluorine-containing compound. The functional group includes an epoxy group, a (meth)acryloxy group, a mercapto group and the like.Type: GrantFiled: February 16, 1996Date of Patent: July 22, 1997Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Masaaki Yamaya, Kazuyuki Matsumura, Yuji Yoshikawa
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Patent number: 5631331Abstract: A highly heat-resistant crosslinked polymer is prepared by subjecting an organic-inorganic hybrid polymer consisting of the repeating monomeric units of the formula ##STR1## in which A is a divalent hydrocarbon group such as phenylene group, to an oxidative crosslinking reaction by heating in air at 50.degree. to 400.degree. C.Type: GrantFiled: November 7, 1995Date of Patent: May 20, 1997Assignee: Agency of Industrial Science and TechnologyInventors: Toshiyasu Sakakura, Masato Tanaka
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Patent number: 5624788Abstract: Disclosed are an organic silicon compound having a repeating unit represented by general formula (I) shown below, a resist, a thermal polymerization composition and a photopolymerization composition containing the organic silicon compound, ##STR1## wherein R.sup.1 is a t-butyl group or a tetrahydropyranyl group, R.sup.2 is an hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 24 carbon atoms, a substituted or unsubstituted aryl group having 1 to 24 carbon atoms, or a substituted or unsubstituted aralkyl having 7 to 24 carbon atoms, R.sup.3 is a substituted or unsubstituted alkyl group having 1 to 24 carbon atoms, a substituted or unsubstituted aryl group having 6 to 24 carbon atoms, a substituted or unsubstituted aralkyl group having 7 to 24 carbon atoms or an alkoxyl group, and k represents an integer from 0 to 4.Type: GrantFiled: June 15, 1995Date of Patent: April 29, 1997Assignee: Kabushiki Kaisha ToshibaInventors: Shinji Murai, Yoshihiko Nakano, Ken Uchida, Shuji Hayase
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Patent number: 5616629Abstract: A radiation-curable release composition is disclosed which comprises:(A) an organopolysiloxane represented by the formulaRSi(CH.sub.3).sub.2 --O--(Si(CH.sub.3).sub.2 O).sub.n (Si(CH.sub.3)(R)O).sub.m Si(CH.sub.3).sub.2 R (I)wherein in Formula (I), each R is --R.sup.1 --O(O)C--C(R.sup.2).dbd.CH.sub.2, --R.sup.1 --O--C(R.sup.2).dbd.CH.sub.2 or is derived from an organic molecule containing both ethylenic unsaturation and epoxide functionality; R.sup.1 is a hydrocarbylene group; each R.sup.2 is independently hydrogen or a methyl or ethyl group; m is a number from about 1 to about 15; and n is a number from about 50 to about 300; and(B) an organosiloxane copolymer represented by the formula(R.sub.3 SiO).sub.x (SiO.sub.4/2).sub.y (II)wherein in Formula (II), each R is independently a hydrocarbon group or a group represented by the formula--O(O)C--C(R*).dbd.CH.sub.2wherein R* is hydrogen or a methyl or ethyl group; x is a number from about 0.Type: GrantFiled: February 27, 1995Date of Patent: April 1, 1997Assignee: Avery Dennison CorporationInventors: Thanh V. Nguyen, John Allen, Qun Yu
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Patent number: 5589562Abstract: A synthesis process for polysilsesquioxanes which produces a high yield, tractable copolymer of perfectly alternating silsesquioxane and bridging group segments is provided. A difunctional silsesquioxane monomer of the formula Si.sub.8 R.sub.8 O.sub.11 (OA).sub.2 or Si.sub.7 R.sub.7 O.sub.9 (OSiR.sup.4 R.sup.5 R.sup.6) (OA).sub.2 is reacted with a difunctional compound of the formula X-M-X which forms a bridging group for a time sufficient to condense the difunctional silsesquioxane monomers and bridging groups into a linear polymer containing alternating silsesquioxane and bridging group segments. The resulting linear copolymer is essentially free of impurities and has controllable properties through the proper selection of the monomeric starting materials.Type: GrantFiled: February 3, 1995Date of Patent: December 31, 1996Assignee: The University of DaytonInventors: Joseph D. Lichtenhan, Ngo Quang Vu, Jeffrey W. Gilman, Frank J. Feher
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Patent number: 5583195Abstract: Epoxysilicone polymers partially or completely functionalized by a fluorescent, photo-sensitizing, or simultaneously fluorescing and photo-sensitizing substituent bonded to the silicone polymer by means of a carbon oxygen carbon bond provide fluorescent dye marking compounds for silicone compositions that are particularly useful in determining the quality of release coatings made therewith.Type: GrantFiled: September 29, 1995Date of Patent: December 10, 1996Assignee: General Electric CompanyInventor: Richard P. Eckberg
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Patent number: 5578380Abstract: Crosslinkable copolymers suitable for use as elevated temperature pressure-sensitive adhesives comprise randomly arranged silarylene units and siloxane units. Preferably, there is present in the copolymer backbone in the range of 0.8 to 1.2 siloxane to silarylene units, and there being present in the copolymer a crosslinking functionality.Type: GrantFiled: May 27, 1994Date of Patent: November 26, 1996Inventor: Gaddam N. Babu
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Patent number: 5574114Abstract: A blend of isocyanate-terminated polyurethane prepolymers is provided. The blend consists essentially of a first crystalline prepolymer based upon polyhexamethylene adipate and a second prepolymer based upon polytetramethylene ether glycol.Type: GrantFiled: June 2, 1995Date of Patent: November 12, 1996Assignee: Minnesota Mining and Manufacturing CompanyInventors: Charles W. Stobbie, IV, John C. Tangen, Lani S. Kangas
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Patent number: 5559196Abstract: A blend of isocyanate-terminated polyurethane prepolymers is provided. The blend consists essentially of a first crystalline prepolymer based upon polyhexamethylene adipate and a second prepolymer based upon polytetramethylene ether glycol.Type: GrantFiled: June 2, 1995Date of Patent: September 24, 1996Assignee: Minnesota Mining and Manufacturing CompanyInventors: Charles W. Stobbie, IV, John C. Tangen, Lani S. Kangas
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Patent number: 5558941Abstract: A blend of isocyanate-terminated polyurethane prepolymers is provided. The blend consists essentially of a first crystalline prepolymer based upon polyhexamethylene adipate and a second prepolymer based upon polytetramethylene ether glycol.Type: GrantFiled: June 2, 1995Date of Patent: September 24, 1996Assignee: Minnesota Mining and Manufacturing CompanyInventors: Charles W. Stobbie, IV, John C. Tangen, Lani S. Kangas
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Patent number: 5548052Abstract: Silane modified polyoxometalate anions represented by the formula YZ(SiRR').sub.n were prepared by reacting a silane having two hydrolyzable groups with a lacunary polyoxometalate anion. In the formula YZ(SiRR').sub.n, Z is M.sub.11 O.sub.39.sup.-12, M.sub.9 O.sub.34.sup.-14 or M.sub.17 O.sub.61.sup.-20, where M is tungsten or molybdenum; Y is As.sup.+5, Si.sup.+4, B.sup.+3, Ge.sup.+4, P.sup.+5 or Fe.sup.+5 when Z is M.sub.11 O.sub.39.sup.-12, Y is Si.sup.+4, Ge.sup.+4, or P.sup.+5 when Z is M.sub.9 O.sub.34.sup.-14 and Y is As.sub.2.sup.+10 or P.sub.2.sup.+10 when Z is M.sub.17 O.sub.61.sup.-20 ; R is selected from the group consisting of monovalent hydrocarbon radicals having from 1 to 24 carbon atoms, monovalent halogenated hydrocarbon or carbon radicals having from 1 to 24 carbon atoms and monovalent hydrocarbon radicals having from 1 to 24 carbon atoms substituted with an epoxy group, an amino group, a mercapto group or a methacrylo group; R' is a hydrogen atom or R and n represents the number of (.dbd.Type: GrantFiled: December 27, 1994Date of Patent: August 20, 1996Assignee: Dow Corning CorporationInventors: Dimitris E. Katsoulis, John R. Keryk
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Patent number: 5548051Abstract: Single component inorganic/organic network materials incorporating the physical properties of glasses with the flexibility of organic materials of empirical formula X(SiO.sub.1.5).sub.n wherein X is one or more flexible organic linkages and n is greater than or equal to 2, as well as precursors thereof, are disclosed.Type: GrantFiled: August 7, 1995Date of Patent: August 20, 1996Assignee: E. I Du Pont de Nemours and CompanyInventors: Michael J. Michalczyk, Kenneth G. Sharp
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Patent number: 5536805Abstract: A blend of isocyanate-terminated polyurethane prepolymers comprising: (a) a first prepolymer which comprises the reaction product of an at least essentially semicrystalline hydroxy-functional material and a polyisocyanate; (b) a second prepolymer which comprises the reaction product of a poly(tetramethylene glycol) ether and a polyisocyanate; and (c) a third prepolymer which comprises the reaction product of an essentially amorphous hydroxy-functional material and a polyisocyanate. The blend may also include a fourth prepolymer which comprises the reaction product of a slightly branched hydroxy-functional material and a polyisocyanate.Type: GrantFiled: April 7, 1995Date of Patent: July 16, 1996Assignee: Minnesota Mining and Manufacturing CompanyInventor: Lani S. Kangas
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Patent number: 5512605Abstract: Epoxysilicone polyether block copolymers, when combined with certain sulfonium photocatalysts, provide one-component shelf-stable UV curable compositions. Non-polyether containing epoxy silicones form one part UV curable compositions with sulfonium salt solubilized in the presence of fluoroalcohols.Type: GrantFiled: December 28, 1994Date of Patent: April 30, 1996Assignee: General Electric CompanyInventors: Richard P. Eckberg, Michael J. O'Brien
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Patent number: 5498684Abstract: An oil soluble, natural resin acid ester, modified with phenolic resin which ester is the reaction product of at least one compound of each of the following groups:A) natural resins or natural resin acids,B) monocyclic or polycyclic phenols which are monofunctional or polyfunctional with respect to oxo compounds,C) aldehydes or aldehyde acetals,D) aliphatic, cycloaliphatic or aromatic-aliphatic alcohols having at least two hydroxyl groups,E) .alpha.,.beta.-ethylenically unsaturated carboxylic acids or their anhydrides,F) aliphatic C.sub.3 -C.sub.30 carboxylic acids or carboxylic esters having an iodine number of less than 15 g of iodine per 100 g of carboxylic acid or carboxylic ester,H) magnesium compounds, and optionally further compounds from the group of substances consisting ofG) ethylenically unsaturated hydrocarbon resins, which ester is prepared by reacting the components at a temperature in the range from 100.degree. to 300.degree. C.Type: GrantFiled: October 14, 1994Date of Patent: March 12, 1996Assignee: Hoechst AktiengesellschaftInventor: Albert Bender
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Patent number: 5489662Abstract: A process for the preparation of an organosilicon polymer, which comprises reacting one equivalent of a bis(alkoxysilyl) compound represented by the following general formula:R.sup.1 R.sup.2 R.sup.3 Si--(A).sub.p --SiR.sup.1 R.sup.2 R.sup.3wherein R.sup.1, R.sup.2 and R.sup.3 each represents the same or different substituted or unsubstituted monovalent hydrocarbon group or an alkoxy group, with the proviso that at least one of R.sup.1, R.sup.2 and R.sup.3 is an alkoxy group; A represents a divalent aromatic group, a divalent conjugated or nonconjugated unsaturated aliphatic group, or a divalent saturated aliphatic group; and p represents an integer of 1 or more, with one or more equivalents of an alkoxydisilane represented by the following general formula:(OR.sup.4).sub.6-n Si.sub.2 (R.sup.5).sub.nwherein R.sup.4 and R.sup.Type: GrantFiled: August 31, 1994Date of Patent: February 6, 1996Assignee: Toshiba Silicone Co., Ltd.Inventors: Shigeru Wakamatsu, Keiji Kabeta, Takafumi Imai
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Patent number: 5484867Abstract: A process for preparation of reactive polyhedral oligomeric silsesquioxanes and the subsequent synthesis of polysilsesquioxanes which produce high yield, tractable polymers containing silsesquioxane segments is provided. A trifunctional polyhedral oligomeric silsesquioxane of the formula Si.sub.7 R.sub.7 O.sub.9 (OA).sub.3 is corner capped by reacting it with a compound of the formula M-Z to form a polyhedral oligomeric silsesquioxane which can be reacted in various ways with oligomers, polymers, catalysts, or co-monomers to form polyhedral silsesquioxane polymers containing silsesquioxanes as pendant, block, or end group segments. The resulting polymers are essentially free of impurities and have controllable properties through the proper selection of the synthesis process and starting materials.Type: GrantFiled: June 1, 1994Date of Patent: January 16, 1996Assignees: The University of Dayton, The Regents of the University of California, The United States of America as represented by the Secretary of the Air ForceInventors: Joseph D. Lichtenhan, Jeffrey W. Gilman, Frank J. Feher
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Patent number: 5464922Abstract: There is disclosed a novel organopolysiloxane-grafted polybenzobisoxazole and a method for preparing the functional organopolysiloxane-grafted polybenzobisoxazoles using a phthaloyl halide-functional organopolysiloxane.Type: GrantFiled: August 24, 1994Date of Patent: November 7, 1995Assignee: Dow Corning Asia Ltd.Inventors: Maki Itoh, Akihito Sakakibara
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Patent number: 5440001Abstract: The invention provides a thermal and addition curable silicone release coating comprising a mixture of an epoxysilicone controlled release additive containing at least one tri- or quadri-functional siloxane unit, a vinyl-functional silicone base polymer, a temperature-dependent hydrosilation inhibitor and an effective hydrosilation catalyst.Type: GrantFiled: December 30, 1993Date of Patent: August 8, 1995Assignee: General Electric CompanyInventors: Roy M. Griswold, Michael J. O'Brien
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Patent number: 5436302Abstract: A blend of isocyanate-terminated polyurethane prepolymers is provided. The blend consists essentially of a first crystalline prepolymer based upon polyhexamethylene adipate and a second prepolymer based upon polytetramethylene ether glycol.Type: GrantFiled: June 10, 1994Date of Patent: July 25, 1995Assignee: Minnesota Mining and Manufacturing CompanyInventors: Charles W. Stobbie, IV, John C. Tangen, Lani S. Kangas
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Patent number: 5424338Abstract: The invention relates to rigid, open-celled hydrophilic polyurethane foams obtained by reacting in the presence of water as a blowing agent and a polyisocyanate with a polyhydric polyamine initiated polyether polyol. The polyether polyol is initiated with a polyhydric polyamine having three (3) to five (5) active amine hydrogens and has internal blocks of polyoxyethylene groups. The foam retains from 15 to 35 times its weight in water.Type: GrantFiled: August 6, 1992Date of Patent: June 13, 1995Assignee: BASF CorporationInventor: David C. Krueger
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Patent number: 5414093Abstract: Hydrolyzable and polymerizable silanes for producing poly (hetero) condensation products and (hetero) polymers, the silanes having the general formula (I)Y.sub.n Si X.sub.m R.sub.4-(n+m) (I),wherein the residues X, Y and R may be the same or different and are defined as follows:R=alkyl, alkenyl, aryl, alkylaryl or arylalkyl,X=hydrogen, halogen, hydroxyl, alkoxy, acyloxy, alkylcarbonyl, alkoxycarbonyl or NR'.sub.2, with R'=hydrogen, alkyl or aryl,Y=a substituent containing a substituted or unsubstituted 1,4,6 -trioxaspiro-[4,4]-nonane residue,n=1, 2 or 3, m=1, 2 or 3, with n+m.ltoreq.4.The silanes of the present invention are processed to form scratch-resistant coatings, filling, adhesive or sealing compounds, molded articles or embedding media.Type: GrantFiled: July 20, 1992Date of Patent: May 9, 1995Assignee: Fraunhofer-Gesellschaft zur Forderung der AngewandtenInventor: Herbert Wolter
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Patent number: 5414066Abstract: Room temperature vulcanizable platinum group metal catalyzed silicone compositions are provided which utilize an N-heterocyclic adhesion promoter, such as 2,6 bis(trimethoxysilyltrimethyleneoxy)pyridine. Cohesive bonding is effected on various substrates.Type: GrantFiled: August 5, 1994Date of Patent: May 9, 1995Assignee: General Electric CompanyInventors: Judith Stein, Mark W. Davis
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Patent number: 5412053Abstract: A synthesis process for polysilsesquioxanes which produces a high yield, tractable copolymer of perfectly alternating silsesquioxane and bridging group segments is provided. A difunctional silsesquioxane monomer of the formula Si.sub.8 R.sub.8 O.sub.11 (OA).sub.2 or Si.sub.7 R.sub.7 O.sub.9 (OSiR.sup.4 R.sup.5 R.sup.6)(OA).sub.2 is reacted with a difunctional compound of the formula X--M--X which forms a bridging group for a time sufficient to condense the difunctional silsesquioxane monomers and bridging groups into a linear polymer containing alternating silsesquioxane and bridging group segments. The resulting linear copolymer is essentially free of impurities and has controllable properties through the proper selection of the monomeric starting materials.Type: GrantFiled: August 12, 1993Date of Patent: May 2, 1995Assignee: The University of DaytonInventors: Joseph D. Lichtenhan, Ngo Q. Vu, Jeffrey W. Gilman, Frank J. Feher
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Patent number: 5395697Abstract: A coating composition comprises an epoxy silane, an amine hardener that can react with the epoxy silane to form a cross-linked coating, and a stabilizer that includes a sufficient amount of a metal component to delay cross-linking between the epoxy silane and the amine hardener. The coating composition has a shelf life of at least 3 days.Type: GrantFiled: March 11, 1994Date of Patent: March 7, 1995Assignee: Minnesota Mining and Manufacturing CompanyInventor: Eric D. Morrison
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Patent number: 5376595Abstract: A carbon-containing black glass has the empirical formula SiC.sub.x O.sub.y wherein x ranges from about 0.5 to about 2.0 and y ranges from about 0.5 to about 3.0 and is resistant to oxidation up to a temperature of about 1400.degree. C. The black glass is synthesized by heating a spirosiloxane polymer in a non-oxidizing atmosphere up to a temperature in the range of from about 750.degree. C. to about 1400.degree. C. The polymers are synthesized by reacting the spirosiloxane oligomers: ##STR1## wherein a and b are integers from 0 to 20, preferably 1 to 5, c and d are integers from 2 to 20, preferably 2 to 6, m is an integer from 0 to 10, preferably 0 to 4, and wherein for each silicon atom in the oligomer having R and R' moieties, R is independently selected from the group consisting of alkyl groups from C.sub.1 to C.sub.20, preferably C.sub.1 to C.sub.5, and R' is independently selected from the group consisting of hydrogen, and alkenyl groups from C.sub.2 to C.sub.20, preferably from C.sub.2 to C.sub.5.Type: GrantFiled: August 28, 1992Date of Patent: December 27, 1994Assignee: Allied-Signal Inc.Inventors: Joseph J. Zupancic, Roger Y. Leung
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Patent number: 5357024Abstract: A method of preparation of a polysiloxane resin composition for an antiabrasion coating having a high refractive index involves hydrolysis of a first constituent of the organosiloxane type to an alkoxysilane hydrolyzate containing condensable silanol groups, and reaction of the hydrolyzate obtained with a second constituent formed of an organic compound of titanium having at least one titanium ester function of carboxylic acid, with addition of a quantity of water such as to cause hydrolysis of the hydrolyzable groups which remain in the mixture obtained and formation of a siloxane prepolymer which integrates the titanium.Type: GrantFiled: July 19, 1993Date of Patent: October 18, 1994Assignee: Essilor InternationalInventor: Yves Leclaire
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Patent number: 5346980Abstract: Crosslinkable copolymers suitable for use as elevated temperature pressure-sensitive adhesives comprise randomly arranged silarylene units and siloxane units. Preferably, there is present in the copolymer backbone in the range of 0.8 to 1.2 siloxane to silarylene units, and there being present in the copolymer a crosslinking functionality.Type: GrantFiled: January 28, 1993Date of Patent: September 13, 1994Assignee: Minnesota Mining and Manufacturing CompanyInventor: Gaddam N. Babu
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Patent number: 5342914Abstract: A curable composition comprising an oxyalkylene polymer having a silicon-containing hydrolyzable group and a low-molecular silicon compound having a hydrolyzable group bonded to a silicon atom which is more reactive to H.sub.2 O than the oxyalkylene polymer, with the mole number of the total hydrolyzable groups in said low-molecular silicon compound being not more than that of the hydrolyzable groups in said oxyalkylene polymer. A sealing compound having well-balanced storage stability and rapid curability is provided.Type: GrantFiled: April 7, 1993Date of Patent: August 30, 1994Assignee: Kanegafuchi Kagaku Kogyo Kabushiki KaishaInventors: Hiroshi Iwakiri, Masayuki Fujita, Takashi Hasegawa
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Patent number: 5336714Abstract: Provided are water-dissipatable, sulfo-containing polyesters and polyester-amides having copolymerized therein thermally stable near infrared flourophoric compounds. The polymers are useful in coating or ink compositions, which are in turn useful for marking articles for identification/authentication purposes. Also provided is a method for invisibly marking such articles and a method for detecting and sorting articles by utilizing the near infrared flourophoric ink or coating compositions.Type: GrantFiled: December 30, 1993Date of Patent: August 9, 1994Assignee: Eastman Chemical CompanyInventors: James J. Krutak, Michael R. Cushman, William W. Parham, Clarence A. Coates, Max A. Weaver, Gabor Patonay
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Patent number: 5322555Abstract: A black glass having the empirical formula SiCxOy where x is greater than zero and up to about 2.0 and y is greater than zero and up to about 2.2 is produced from a cyclosiloxane polymer precursor by pyrolysis in the presence of oxygen by heating at a rate exceeding about 5.degree. C./min.Type: GrantFiled: June 29, 1993Date of Patent: June 21, 1994Assignee: Allied-Signal Inc.Inventors: Roger Y. Leung, John G. Sikonia, Stephen T. Gonczy
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Patent number: 5314980Abstract: A coating composition comprises an epoxy silane, an amine hardener that can react with the epoxy silane to form a cross-linked coating, and a stabilizer that includes a sufficient amount of a metal component to delay cross-linking between the epoxy silane and the amine hardener. The coating composition has a shelf life of at least 3 days.Type: GrantFiled: January 19, 1993Date of Patent: May 24, 1994Assignee: Minnesota Mining and Manufacturing CompanyInventor: Eric D. Morrison
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Patent number: 5292855Abstract: Provided are water-dissipatable, sulfo-containing polyesters and polyester-amides having copolymerized therein thermally stable near infrared flourophoric compounds. The polymers are useful in coating or ink compositions, which are in turn useful for marking articles for identification/authentication purposes. Also provided is a method for invisibly marking such articles and a method for detecting and sorting articles by utilizing the near infrared flourophoric ink or coating compositions.Type: GrantFiled: February 18, 1993Date of Patent: March 8, 1994Assignee: Eastman Kodak CompanyInventors: James J. Krutak, Michael R. Cushman, William W. Parham, Clarence A. Coates, Max A. Weaver, Gabor Patonay
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Patent number: 5292827Abstract: There is disclosed a novel epoxy-modified branched epoxy copolymerizate which can be copolymerized with other thermoplastics, such as polycarbonates, to modify melt flow.Type: GrantFiled: February 25, 1993Date of Patent: March 8, 1994Assignee: General Electric CompanyInventors: William J. Raleigh, Michael A. Lucarelli, James F. Hoover
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Patent number: 5292787Abstract: The invention provides a thermal and addition curable silicone release coating comprising a mixture of an epoxysilicone controlled release additive containing at least one tri- or quadri-functional siloxane unit, a vinyl-functional silicone base polymer, a temperature-dependent hydrosilation inhibitor and an effective hydrosilation catalyst.Type: GrantFiled: July 30, 1992Date of Patent: March 8, 1994Assignee: General Electric CompanyInventors: Roy M. Griswold, Michael J. O'Brien