Silicon Containing Carboxylic Acid Or Derivative Or From A Silicon Derivative Of A Nonsilicon Containing Carboxylic Acid Patents (Class 528/41)
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Silicones which contain lateral peripheral vinyl ether groups having aliphatic or aromatic urethanes
Patent number: 5208312Abstract: The invention relates to copolymers of siloxanes with the formula:(R.sub.a).sub.3 SiO(V).sub.v --(W).sub.w --(Y).sub.y --(Z).sub.z --Si(R.sub.a).sub.3whereV=SiR.sub.a R.sub.b O--;W=SiR'.sub.a (R.sub.c --R.sub.d --OCH.dbd.CH.sub.2)O--;Y=SiR.sub.a R.sub.g O--;Z=R.sub.a R.sub.g SiC.sub.n H.sub.2n R'.sub.f C.sub.n H.sub.2n SiR.sub.a R.sub.g O-- where n=2, 3 or 4;v, y, z=0 or an integer, w.noteq.0 with v+y+z.noteq.0;R.sub.a =alkyl or phenyl; R.sub.b =R.sub.a ; R'.sub.a =R.sub.a or alkoxy; R.sub.c =alkylene, for example:R.sub.d =--OCONHR.sub.e NHCO--, --NH--COOC.sub.2 H.sub.4 --, or --NHCOOC.sub.3 H.sub.6 --;R.sub.e =divalent hydrocarbon radicals; R.sub.g, R.sub.f and R'.sub.f are fluorinated or perfluorinated radicals.The above copolymers are used for the preparation of antiadhesive coatings, for example on paper.Type: GrantFiled: February 21, 1992Date of Patent: May 4, 1993Assignee: Dow Corning CorporationInventors: Bernard J. L. Boutevin, Boulos Youssef, Gerardo Caporiccio -
Patent number: 5180627Abstract: The disclosed heat resistant adhesive composition comprises a polyimidesiloxane obtained from a biphenyltetracarboxylic acid or its derivative and a diamine composition comprising a diaminopolysiloxane and an aromatic diamine, an epoxy compound having an epoxy group, and an epoxy compound-hardening agent. An adhesive film and a composite sheet utilizing the heat resistant resinous composition are also disclosed.Type: GrantFiled: December 2, 1991Date of Patent: January 19, 1993Assignee: Ube Industries, Ltd.Inventors: Hiroshi Inoue, Seiichirou Takabayashi, Tadao Muramatsu, Tsutomu Funagoshi, Tetsuji Hirano
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Patent number: 5162451Abstract: A homogeneous composition having improved curability contains an organopolysiloxane having at least two carboxyl group-containing hydrocarbon groups in each molecule, a polymeric compound which contains at least 2 hydroxyl groups and at least one oxyalkylene unit and a catalytic quantity of an esterification reaction catalyst. The curable composition has good standing compatiblity and experiences a high degree of curing. When cured the composition is useful, for example, as an antistatic additive.Type: GrantFiled: February 11, 1991Date of Patent: November 10, 1992Assignee: Dow Corning Toray Silicone Co., Ltd.Inventor: Takashi Nakamura
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Patent number: 5159054Abstract: Imide-containing phthalonitrile monomers are synthesized into heat resistant polymers and copolymers with aromatic ring structure incorporating imide and ether linkages. The synthesis of the high temperature thermosetting polymers and copolymers is also disclosed.Type: GrantFiled: January 10, 1991Date of Patent: October 27, 1992Assignee: The United States of America as represented by the Secretary of the NavyInventor: Teddy M. Keller
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Patent number: 5130401Abstract: The room temperature curable organopolysiloxane composition comprises a silane compound having a group represented by the following formula: ##STR1## wherein R is a hydrogen atom or a monovalent hydrocarbon group, as an adhesion assistant. The composition has the merit of good adhesive properties, particularly for chlorinated polyethylene.Type: GrantFiled: January 10, 1991Date of Patent: July 14, 1992Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Masatoshi Arai, Kouji Yokoo, Yoshifumi Harada
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Patent number: 5130398Abstract: Organopolysiloxanes obtained by heating organocyclopolysiloxanes in the presence of alkali catalysts to effect equilibration reaction contain residual silanol groups. The organopolysiloxanes can be stabilized by effecting silylation reaction by adding silylketeneacetal compounds to them, thereby blocking the residual silanol groups through silylation.Type: GrantFiled: September 11, 1991Date of Patent: July 14, 1992Assignee: Shin-Etsu Chemical Company, LimitedInventors: Hironao Fujiki, Nobuhiro Nakagawa
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Patent number: 5126420Abstract: A mixture of (A) a diorganopolysiloxane end-blocked with a hydroxyl group, (B) an .alpha.,.beta.-substituted vinyloxysilane, or a hydrolyzate thereof, and (C) a perfluorocarboxylic acid derivative provides an RTV organopolysiloxane composition which is stable and non-corrosive to metal.Type: GrantFiled: August 3, 1990Date of Patent: June 30, 1992Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Shinichi Satoh, Toshio Takago, Hitoshi Kinami
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Patent number: 5118724Abstract: The present invention proposes a silane and an organopolysiloxane containing a cyclopentenyl radical, characterized in that the silane or the organopolysiloxane has a radical Y of the formula: ##STR1## directly linked to the silicon atom. The silanes according to the invention can be used as coupling and crosslinking agents, in particular in the compositions of acrylic paints.The diorganopolysiloxanes according to the invention can be used as base polymer of a silicone composition which is crosslinkable to an elastomer, in particular by exposure to atmospheric oxygen.Type: GrantFiled: November 21, 1990Date of Patent: June 2, 1992Assignee: Rhone-Poulenc ChimieInventors: Jean-Marc Frances, Frederic Leising
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Patent number: 5110863Abstract: Solutions and preparation methods necessary for the fabrication of metal oxide cross-linked polysiloxane coating films are disclosed. The films are useful in provide heat resistance against oxidation, wear resistance, thermal insulation, and corrosion resistance of substrates. The sol-gel precursor solution comprises a mixture of a monomeric organoalkoxysilane, a metal alkoxide M(OR).sub.n (wherein M is Ti, Zr, Ge or Al; R is CH.sub.3, C.sub.2 H.sub.5 or C.sub.3 H.sub.7 ; and n is 3 or 4), methanol, water, HCl and NaOH. The invention provides a sol-gel solution, and a method of use thereof, which can be applied and processed at low temperatures (i.e., <1000.degree. C.). The substrate can be coated by immersing it in the above mentioned solution at ambient temperature. The substrate is then withdrawn from the solution. Next, the coated substrate is heated for a time sufficient and at a temperature sufficient to yield a solid coating.Type: GrantFiled: October 1, 1990Date of Patent: May 5, 1992Assignee: Associated Universities, Inc.Inventor: Toshifumi Sugama
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Patent number: 5104958Abstract: Silicone polyimides resulting from the condensation of para phenylene diamine and an organic dianhydride mixture of a bis(phthalic anhydride)poly(diorganosiloxane), a 2,2 bis[4-(3,4-dicarboxyphenoxy)phenyl] propane dianhydride and hydroquinone dianhydride in a dipolar aprotic solvent have been found to be substantially insoluble in chlorinated organic solvents such as chloroform and useful as melt extrudable wire coating compositions.Type: GrantFiled: January 25, 1991Date of Patent: April 14, 1992Assignee: General Electric CompanyInventors: Donald A. Bolon, Patricia C. Irwin
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Patent number: 5095085Abstract: A releasing silicone composition, which in cured form has from medium to high bond release strength, comprising 0.1 to 10 parts by weight of an organopolysiloxane of the formula ##STR1## wherein R.sup.1 is alkyl of 1-3 carbon atoms, or a phenyl group; each R.sup.2 is R.sup.1 or R.sup.3 ; R.sup.3 is C.sub.l H.sub.2l+1 COOCH.sub.2 CH.sub.2 CH.sub.2 -- in which l is an integer from 14-20; m is an integer from 50-200; and n is an integer from 0-20, in a silicone composition comprising 100 parts by weight of an organopolysiloxane which contains at least two vinyl groups bonded directly to silicon atoms, from 0.1 to 30 parts by weight of an organohydrogenpolysiloxane which contains at least two hydrogen atoms bonded directly to silicon atoms, and a platinum catalyst.Type: GrantFiled: September 27, 1990Date of Patent: March 10, 1992Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Yasuaki Hara, Masahiko Ogawa, Tomohiro Yamazaki
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Patent number: 5091483Abstract: A composition which is curable to an elastomer comprising:A polymer or mixture of polymers of the formula ##STR1## wherein: X are monovalent moieties having ethylenic unsaturation which can be the same or different;Y are divalent linking groups which can be the same or different;m is an integer of 0 to 1;D are monovalent moieties which can be the same or different selected from the group consisting of hydrogen, an alkyl group of 1 to about 10 carbon atoms, aryl, and substituted aryl;R are divalent hydrocarbon groups which can be the same or different;R.sup.1 are monovalent moieties which can be the same or different selected from the group consisting of alkyl, substituted alkyl, aryl, and substituted aryl;R.sup.2 are monovalent moieties which can be the same or different selected from the group consisting of alkyl, substituted alkyl, aryl, and substituted aryl;R.sup.Type: GrantFiled: March 15, 1991Date of Patent: February 25, 1992Assignee: Minnesota Mining and Manufacturing CompanyInventors: Mieczyslaw H. Mazurek, Steven S. Kantner, Charles M. Leir, Yvan A. Bogaert, Robert K. Galkiewicz, Audrey A. Sherman
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Patent number: 5081201Abstract: Polymers of silanol-terminated aromatic imide compounds of Formula I ##STR1## where R.sub.3 and R.sub.4 are each selected from the group consisting of a C.sub.1 to C.sub.6 alkyl group, an unsubstituted aryl group and a substituted aryl group, Z is a divalent radical.A preferred copolymer in accordance with the present invention is formed by polymerizing the compound of Formula I with a silicon compound having the formula ##STR2## where R.sub.3 and R.sub.4 are as defined above, X=halogen, OH, OR, NRR, or ureido,Y=--O-- or ##STR3## p=1 to 10.Type: GrantFiled: October 29, 1990Date of Patent: January 14, 1992Assignee: Hughes Aircraft CompanyInventors: Thomas K. Dougherty, Thomas W. Giants
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Patent number: 5079300Abstract: The present invention provides curable gel compositions and also cured gel compositions which possess unexpectedly superior combinations of physical properties and aging resistance. These compositions are particularly useful for environmentally protecting substrates especially electrical conductors, connectors and splices and for sealing around jacketed cables, for example, where they enter splice cases.Type: GrantFiled: March 5, 1990Date of Patent: January 7, 1992Assignee: Raychem CorporationInventors: Robert S. Dubrow, Subbu S. Venkatraman, Albert J. Highe, Frank W. Mercer, Christian A. Debbaut
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Patent number: 5075154Abstract: Silphenylene groups are incorporated into epoxy-functional silicones to improve the physical properties of otherwise weak and brittle UV-cured epoxy-functional silicones without adding fillers and without sacrificing fast, efficient UV cure speed. Such compositions are useful as conformal coatings, optical fiber coatings, and electrical encapsulation.Type: GrantFiled: October 15, 1990Date of Patent: December 24, 1991Assignee: General Electric CompanyInventor: Richard P. Eckberg
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Patent number: 5071908Abstract: The present invention is directed to a silicon polyimide precursor composition which has a viscosity suitable for the formation of films by application or another mean and which is capable of forming hard and tough films having excellent heat resistance, low coefficient of thermal expansion and strong adhesive force by heating the films, the above-mentioned films being formed by the chemical bond between silicon and polyimide. Another feature of the present invention is directed to a method for preparing a crosslinked/cured material of the aforesaid silicon polyimide precursor composition.That is, the present invention is connected with a soluble silicon polyimide precursor composition which comprises 0.5 to 40% by weight of a silicon polyimide precursor represented by the following formula (I) on another precursor obtained by imidizing the compound represented by the formula (I) and having a logarithmic viscosity number of 0.05 to 5 dl/g, 0.Type: GrantFiled: January 24, 1990Date of Patent: December 10, 1991Assignee: Chisso CorporationInventors: Kouichi Kunimune, Ryuji Kobayashi
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Patent number: 5070179Abstract: The present invention relates to water-soluble copolymerized polyester resin suitable to produce a polyester film having a good adhesion and surface properties.That is, the composition of the present invention comprise 50.about.85 mol % of aromatic dicarbonic acid, 0.5.about.25 mol % of aromatic dicarbonic acid containing sulfonic acid alkali metallic base and 0.5.about.25 mol % of dicarbonic acid containing silane system represented by the following formula (I) in the total dicorbonic acid components, wherein the glycol components contained in the composition comprising more than 60 mol % of aliphatic or alicyclic glycol and 1.about.40 mol % of diethylene glycol or triethylene glycol. ##STR1## wherein R.sub.1 is aliphatic hydrocarbon group of 1 to 15 carbon atoms, R.sub.2 is aliphatic hydrocarbon group of 1 to 4 carbon atoms.Type: GrantFiled: February 12, 1991Date of Patent: December 3, 1991Assignee: Cheil Synthetics Inc.Inventors: Kwang T. Kim, Tae H. Kim, Young S. Kim
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Patent number: 5066773Abstract: A poly Ressert can be formed by first reacting benzimidazole with an aliphatic diacid chloride to form bisbenzimidazole and then reacting the bisbenzimidazole with an aliphatic diacid chloride and cyanide to form the poly Reissert.Type: GrantFiled: October 6, 1989Date of Patent: November 19, 1991Assignee: Virginia Tech Intellectual Properties, Inc.Inventors: Harry W. Gibson, Yajnanarayana H. R. Jois
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Patent number: 5063115Abstract: A polyimide coating composition comprising an homogeneous liquid solution of (a) a polyimide or polyimide precursor, (b) a substituted silane compound and (c) aprotic solvent.Type: GrantFiled: June 15, 1990Date of Patent: November 5, 1991Assignee: E. I. du Pont de Nemours and CompanyInventors: Burt T. Merriman, Jr., David L. Goff
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Patent number: 5061762Abstract: The invention relates to modified poly(organo-organosiloxanes) with comb and/or block structures, which consist of a substantially linear diorganopolysiloxane base with organic polymers based on acrylates arranged in terminal positions and/or along the chain. These block polymers can be prepared by a two-step process. In a first process step, alkenyl trialkylsilylacetates are added to polyorgano-H-siloxanes in the presence of, for example, platinum catalysts and in a second process step, polar compounds, such as acrylates or methacrylates are graft copolymerized onto the polyorganosiloxanes modified with trialkylsilylacetoxyalkyl groups obtained above, in the presence of, for example, nucleophilic catalysts according to the principle of the group-transfer method.Type: GrantFiled: August 3, 1989Date of Patent: October 29, 1991Assignee: Wacker-Chemie GmbHInventors: Gerald Fleischmann, Herbert Eck, Johann Schuster
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Patent number: 5049617Abstract: Organopolysiloxane compounds represented by the following general formula (I), which can fully achieve their effects as functional group when introduced as cross-linking groups into moisture cross-linkable polymers: ##STR1## (wherein R' represents methyl group or hydrogen atom; R.sup.2 represents methyl group or ethyl group; m represents an integer from 1 to 3; n represents an integer from 3 to 50; k represents 1 or 2 and l represents 2 or 3).Type: GrantFiled: September 26, 1989Date of Patent: September 17, 1991Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Hiroshi Yoshioka, Ichiro Ono, Hitoshi Uehara
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Patent number: 5045621Abstract: A diorganopolysiloxane in which a polymerizable functional group is present at one (or both) molecule chain ends and in which an arbitrary group is present at the other end can be easily synthesized. The synthesis involves the opening of a cyclotrisiloxane using an alkali metal silanolate which bears the polymerizable functional group, followed by a capping reaction. The resulting diorganopolysiloxane can be used effectively as a feed material for manufacturing silicone rubbers, feed material for manufacturing novel grafted organopolysiloxanes, comonomer components for resins other than organopolysiloxanes or plastics, etc.Type: GrantFiled: September 26, 1989Date of Patent: September 3, 1991Assignee: Toray Silicone Company, Ltd.Inventor: Toshio Suzuki
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Patent number: 5039761Abstract: Novel methacryl functional dimethylpolysiloxanes are provided. Graft copolymers thereof with vinyl monomers exhibit water repellency, mold release properties, slip properties, weatherability, and gas permeability.Type: GrantFiled: September 14, 1989Date of Patent: August 13, 1991Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Ichiro Ono, Hiroshi Yoshioka
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Patent number: 5034491Abstract: A (meth)acrylate ester-modified organopolysiloxane composition, which is composed of several fractions of equilibrated (meth)acrylate ester-modified organopolysiloxanes that differ in the average number of silicon atoms in the mixture of molecules, is disclosed which contains60 to 95% by weight of a modified organopolysiloxane A having, on the average, 5 to 50 silicon atoms and5 to 40% by weight of a modified organopolysiloxane B having, on the average, at least 50 silicon atoms,with the proviso that the number of silicon atoms in the average molecule of the modified organopolysiloxane B is at least twice as large as the number of silicon atoms in the average molecule of the modified organopolysiloxane A. The organopolysiloxane mixtures have improved abhesive properties.Type: GrantFiled: October 24, 1989Date of Patent: July 23, 1991Assignee: Th. Goldschmidt AGInventors: Dietmar Wewers, Christian Weitemeyer, Jurgen Jachmann
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Patent number: 5026741Abstract: A photocurable organopolysiloxane composition comprising an organopolysiloxane having at least one photocurable acryloxyorganosilyl group in the molecule, a polyether-modified organopolysiloxane and a photo-initiator. The composition has good peelable protective properties after curing and heating, for example, in hot solder bath.Type: GrantFiled: May 30, 1989Date of Patent: June 25, 1991Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Masatoshi Arai, Kazutoshi Fujioka, Masaharu Satou
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Patent number: 5023298Abstract: Disclosed is a curable composition which is superior in chemical resistance and weather resistance and appearance by the use of oxazolidine compounds, comprising (A) a compound having a carboxylic anhydride group, (B) an oxazolidine compound and (C) a polymer containing an alkoxysilyl group. An epoxy compound (D) may be added to the composition.Type: GrantFiled: December 27, 1989Date of Patent: June 11, 1991Assignee: Nippon Paint Co., Ltd.Inventors: Hiroshi Miwa, Yoshitaka Okude, Masakazu Watanabe, Sakuichi Konishi
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Patent number: 5019428Abstract: Modified polyurethanes containing perfluoroaliphalic groups which are obtained by reacting oligo(poly)urethanes containing free hydroxyl or isocyanate groups and perfluoroaliphatic groups with di/polyfunctional polysiloxanes at elevated temperatures with conversion of all the reactive groups of the urethane are used for the oil- and water-repellent finishing of fiber materials, conferring on these materials thus treated not only laundering- and drycleaning-stable effects but also in particular a very soft, full hand of very good surface smoothness, these excellent hand effects being further optimized by the addition of a polyethylene dispersion and/or of further customary textile assistants, in particular water-repellent fluorocarbon compounds.Type: GrantFiled: January 25, 1989Date of Patent: May 28, 1991Assignee: Ciba-Geigy CorporationInventors: Simpert Ludemann, Michael Bernheim, Bernhard Sandner, Erich Rossler, Hans-Burkhardt Vogel
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Patent number: 5019637Abstract: The invention is relative to optionally cross-linked organopolysiloxane urea derivatives and thiourea derivatives consisting of: ##STR1## wherein X stands for 0 or S andR.sup.1 is a group of the formula: ##STR2## in which R.sup.5 is alkylene with 1 to 10 C atoms or cycloalkylene with 5 to 8 C atoms or a group of the formula: ##STR3## with n=1-6 (on the nitrogen)m=0-6 (on the silicon), wherein R.sup.2 has the same meaning as R.sup.1 or stands for H, R.sup.3 and R.sup.4 have the same meaning as R.sup.1 or stands for H or alkyl with 1 to 5 C atoms. At least two but at the most three groups according to formula (2) are bound to the units according to formula (1). The free valances of the oxygen atoms bound to the silicon atom are saturated by silicon atoms of further groups of formula (2) with the optional inclusion of cross-linking agents. In addition, preparative methods for the products and a use for the removal of dissolved metals from liquid phases are indicated.Type: GrantFiled: November 3, 1989Date of Patent: May 28, 1991Inventors: Peter Panster, Ulrich Deschler
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Patent number: 5008361Abstract: Novel crystalline polyimidesiloxanes are prepared by reacting BTDA, and a siloxane monomer with a diamine selected from bis-4(4-aminophenoxy) phenyl sulfone and 2,2-bis-4(4-aminophenoxy) phenyl propane. The products have low water absorption.Type: GrantFiled: January 2, 1990Date of Patent: April 16, 1991Assignee: Occidental Chemical CorporationInventor: Chung J. Lee
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Patent number: 5008301Abstract: Compositions containing an acrylamide functional polydiorganosiloxane, a polydiorganosiloxane having methacryloxyalkyl functionality and silicon-bonded alkoxy functionality, a photoinitiator, and an organic titanate can be improved by using organic peroxides. The improvements are observed in shelf life and pot life of the uncurd composition, and the odor of the cured product. The resulting composition has ternary cure mechanisms with two of these mechanisms being available as shadow cure mechanisms, i.e. cures in areas not exposed to ultraviolet radiation by either exposure to atmospheric moisture or by heating.Type: GrantFiled: February 21, 1989Date of Patent: April 16, 1991Assignee: Dow Corning CorporationInventors: William E. Dennis, Bernard VanWert
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Patent number: 5003024Abstract: Organosiloxane amine copolycondensates as statistic or block copolycondensates or mixtures thereof consisting of the units ##STR1## in which R.sup.1 to R.sup.5 is ##STR2## and R.sup.6 is bound directly to the nitrogen atom or the double-bonding X group and is alkylene, cycloalkylene or ##STR3## in which n is 1 to 6 and m 0 to 6. The free valences of the oxygen atoms bound to the silicon atom are saturated by silicon atoms of further groups of formula III, optionally with the inclusion of cross-linking agents, X stands for ##STR4## in which R" is H or alkyl. In addition, preparation methods and the use of the products for the removal of dissolved metals from liquid phase or for the adsorption of gaseous compounds.Type: GrantFiled: November 3, 1989Date of Patent: March 26, 1991Assignee: Degussa AktiengesellschaftInventors: Peter Panster, Robert Gradl, Peter Kleinschmit
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Patent number: 4999413Abstract: Organosiloxane amine copolycondensates as statistic or block copolycondensates or mixtures thereof consisting of the units ##STR1## andX--R.sup.4 (II)in which R.sup.1 to R.sup.4 is ##STR2## and R.sup.5 is bound directly to the nitrogen atom or the single-bonding X group and is alkylene, cycloalkylene or ##STR3## in which n is 1 to 6 and m 0 to 6. The free valences of the oxygen atoms bound to the silicon atom are saturated by silicon atoms of further groups of formula III, optionally with the inclusion of cross-linking agents, X stands for ##STR4## in which R" is H or alkyl. In addition, preparation methods and the use of the products for the removal of dissolved metals from the liquid phase or for the adsorption of gaseous compounds.Type: GrantFiled: November 3, 1989Date of Patent: March 12, 1991Assignee: Degussa AktiengesellschaftInventors: Peter Panster, Horst Grethe, Peter Kleinschmit
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Patent number: 4994532Abstract: Carboxylic acid functionalized polydimethylsiloxane fluids react with polycarbonate in the melt to form polydimethylsiloxane/polycarbonate block copolymers. The resultant copolymers are transparent and show improved flow and thick section impact relative to the polycarbonate.Type: GrantFiled: June 16, 1989Date of Patent: February 19, 1991Assignee: General Electric CompanyInventors: Christopher M. Hawkins, Robert R. Gallucci
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Patent number: 4980396Abstract: A primar composition comprising(A) 100 parts by weight of an organo-polysiloxane represented by the formula (1) ##EQU1## wherein R.sup.1 represents a substituted or unsubstituted monovalent hydrocarbon group, and a is a number of from 1.98 to 2.01, provided that 25 to 50 mol % of the hydrocarbon group is a perfluoroalkyl group and 0.01 to 10 mol % of the hydrocarbon group is a vinyl group, said organo-polysiloxane having a viscosity as measured at 25.degree. C. of 1,000,000 centistokes or more;(B) 5 to 100 parts by weight of a silica type filler;(C) 0.5 to 50 parts by weight of isocyanurate-type organosilicon compound represented by the formula (2) ##STR1## wherein R.sup.2 represents an alkyl group, a fluoroalkyl group or an alkoxyalkyl group, each having 1 to 5 carbon atoms in the alkyl moiety, and n is an integer of 1 to 5; and(D) a desired amount of an organic solvent.Type: GrantFiled: June 1, 1989Date of Patent: December 25, 1990Assignee: Toshiba Silicone Co., Ltd.Inventor: Hirofumi Yoshida
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Patent number: 4969711Abstract: Optical glass fibers are provided with a primary coating of organo-polysiloxanes, containing acrylic acid ester groups, corresponding to the general formula: ##STR1## where the primary coating is free of inert components capable of migration.Type: GrantFiled: March 25, 1988Date of Patent: November 13, 1990Assignee: Siemens AktiengesellschaftInventors: Wolfgang Rogler, Helmut Markert, Christian Weitemeyer, Dietmar Wewers, Goetz-Robert Koerner
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Patent number: 4959407Abstract: A moisture curable solventless organopolysiloxane composition is provided useful as an adherent construction sealant. Improved cure rate, higher elongation at break values and lower modulus RTVs are achieved by using a bis(ureido)silane as a coupler and an aminoxysiloxane as a crosslinker for a silanol-terminated polydiorganosiloxane base polymer.Type: GrantFiled: June 1, 1989Date of Patent: September 25, 1990Assignee: General Electric CompanyInventors: Jonathan D. Rich, David C. Gross, Timothy B. Burnell, Jeffrey H. Wengrovius
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Patent number: 4945147Abstract: There is provided by the present invention aromatic polyester-siloxane block copolymers which can be made by effecting the condensation between tetramethyldisiloxane bisbenzoic acid or acid chloride with a dihydric phenol such as bisphenol A or in combination with a mixture of such tetramethyldisiloxane bisbenzoic acid and aromatic acids, such as terephthalic acid or isophthalic acid. The aromatic polyester-siloxane block copolymers can be used as molding compounds, extruded films, in making composite matrix materials and as flame retardants for aromatic polycarbonates.Type: GrantFiled: March 6, 1989Date of Patent: July 31, 1990Assignee: General Electric CompanyInventors: Peter P. Policastro, Pamela K. Hernandez, Sandra A. Swint, Gary C. Davis, Jonathan D. Rich, Philip J. McDermott, Thomas L. Guggenheim
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Patent number: 4939223Abstract: Silicon-modified polyimides of this invention containing a basic structure of the general formula (1) ##STR1## in which R and R' are hydrogen or alkyl, B is the amineless residue of a diamine, and X is divalent radical ##STR2## in which R.sub.1 to R.sub.4 are monovalent hydrocarbon groups with 1 to 6 carbon atoms show excellent heat resistance and solubility in various solvents and are useful for films for orientation of LCD's, junction coating resins for diodes, passivation films for IC's and LSI's, and alpha ray shielding films for VLSI's.Type: GrantFiled: October 5, 1988Date of Patent: July 3, 1990Assignee: Nippon Steel Chemical Co., Ltd.Inventors: Yasuharu Yamada, Nobuyuki Furukawa
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Patent number: 4889768Abstract: A silicon-urethane (meth) acrylate which is a reaction product of an isocyanato-alkylsilane compound represented by the following general formula: ##STR1## wherein R.sub.1 represents an alkylene group having 2 to 5 carbon atoms, R.sub.2 represents an alkyl group having 1 to 5 carbon atoms or alkoxy group having 1 to 5 carbon atoms, and R.sub.3 and R.sub.4 each represents an alkyl group having 1 to 5 carbon atoms, and a hydroxyl group-containing ester of (meth) acrylic acid, a resin composition and a coating material for optical glass fiber comprising said silicon-urethane (meth) acrylate.Type: GrantFiled: April 14, 1987Date of Patent: December 26, 1989Assignee: Nippon Kayaku Kabushiki KaishaInventors: Minoru Yokoshima, Tetsuo Ohkubo
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Patent number: 4829131Abstract: Substantilly fully imidized polyimidesiloxanes which are based on a mixture consisting essentially of a biphenyl tetracarboxylic dianhydride and a benzophenone tetracarboxylic dianhydride, are soluble in diglyme which gives them particular utility in the micro-electronics industry. The polymers are prepared from the mixture of dianhydrides, a difunctional siloxane monomer and an organic diamine. Diamines can be used to provide an asymmetrical structure in the polyimidesiloxane polymer chain. The polyimidesiloxane can be prepared with functional groups which render them directly curable. The polyimidesiloxanes can also be prepared with functional groups which when reacted with an unsaturated compound renders the polymers curable. The products of the invention can be used in the form of solutions in the micro-electronic industry. The polymers can also be used in wire and cable coating and to prepare films, fibers, and molded and extruded articles.Type: GrantFiled: February 9, 1988Date of Patent: May 9, 1989Assignee: Occidental Chemical CorporationInventor: Chung J. Lee
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Patent number: 4824875Abstract: A conformal coating composition is made from a mixture of acrylamide functional polydimethylsiloxane, a methacrylate functional/dialkoxy polydiorganosiloxane, reactive diluent including isobornyl acrylate, cyclohexyl acrylate, and 2-ethylhexyl acrylate; a photoinitiator combination of 2-hydroxy-2-methylphenylpropanone and 2-methyl-1-[4-(methylthio)phenyl]-2-morpholenopropanone, an amine including dimethylethanolamine and diisopropylethylamine, and an organic titanate. The composition has a viscosity of from 0.07 to 0.2 Pa.s at 25.degree. C. and cures by exposure to ultraviolet radiation and to atmospheric moisture, i.e. a dual curing composition. This composition cures too fast by exposure to ultraviolet radiation in the presence of nitrogen resulting in a distorted surface and therefore for coating printed circuit boards it is recommended that it be cured in air so that the rate of cure is reduced and no surface distortions are formed.Type: GrantFiled: November 6, 1987Date of Patent: April 25, 1989Assignee: Dow Corning CorporationInventor: Beth I. Gutek
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Patent number: 4804732Abstract: A thermosetting coating composition adapted to form a flexible cured coating over a variety of substrates, such as metal and plastic containing a hydroxy functional urethane modified polysiloxane graft copolymer and an alkylated melamine crosslinking agent. The copolymer has a number average molecular weight between about 1,000 and about 4,000, has a hydroxyl number between about 30 and about 300, contains about 1-10 urethane linkages per molecule and is the reaction product of carbon-carbon double bond-reactive monoethylenically unsaturated monomer with hydroxy functional carbon-carbon double bond-bearing branched polysiloxane macromer. The macromer is the reaction product of glycidyl methacrylate and hydroxy functional polysiloxane reactant containing 1-10 urethane linkages per molecule.Type: GrantFiled: February 2, 1988Date of Patent: February 14, 1989Assignee: E. I. Du Pont de Nemours and CompanyInventors: Rose A. Ryntz, Kenneth R. Kurple
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Patent number: 4797462Abstract: Organopolysiloxanes curable into elastomeric state, well adapted as sealing materials for a variety of substrates and useful, e.g., in the automotive industry, are comprised of a polyhydroxylated polysiloxane, a polyacyloxysilane crosslinking agent, and an effective amount of at least one calcium oxide, strontium oxide and/or barium oxide cure accelerator therefor. The subject compositions are stable for at least 10 minutes at ambient temperature and crosslink on heating and/or addition of an aqueous or liquid carboxylic acid promoter thereto.Type: GrantFiled: September 11, 1987Date of Patent: January 10, 1989Assignee: Rhone-Poulenc ChimieInventors: Michel Letoffe, Georges Barrandon
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Patent number: 4795680Abstract: Polyimide-siloxanes are provided resulting from the intercondensation of organic diamines with organosiloxanes having terminal silyl-substituted aromatic organic anhydride groups. Semiconductor devices and composites using such polyimidesiloxanes as dielectric or passivating layers, films, adhesives and composites are also provided.Type: GrantFiled: February 5, 1987Date of Patent: January 3, 1989Assignee: General Electric CompanyInventors: Jonathan D. Rich, Peter P. Policastro, Pamela K. Hernandez
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Patent number: 4794153Abstract: Polyimide-siloxanes are provided resulting from the intercondensation of organic diamines with organosiloxanes having terminal silyl-substituted aromatic organic anhydride groups.Type: GrantFiled: November 16, 1987Date of Patent: December 27, 1988Assignee: General Electric CompanyInventor: Jonathan D. Rich
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Patent number: 4783222Abstract: A surface treatment composition for glass fibers comprising an aqueous solution or emulsion of an organosilane which contains at least one isoimido group. The organosilane with the highest adhesion promotion is N-2-(isomaleimodo)aminoethyl-3-aminopropyl-trimethylsilane.Type: GrantFiled: November 17, 1987Date of Patent: November 8, 1988Assignee: International Business Machines CorporationInventor: Frank Druschke
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Patent number: 4780338Abstract: Solventless silicone coating compositions are disclosed which contain a fluid silicone resin and a polydiorganosiloxane fluid.Type: GrantFiled: March 26, 1987Date of Patent: October 25, 1988Assignee: General Electric CompanyInventors: William T. Saad, George F. Medford
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Patent number: 4754014Abstract: Hydroxy functional polysiloxane graft copolymers are provided. The copolymer is crosslinkable by hydroxy-reactive crosslinking agent and, in particular, is suitable for use in thermosetting coating compositions adapted to form a flexible cured coating over a variety of substrates, such as metal and plastic. The copolymer has a number average molecular weight between about 1000 and about 15,000, has a hydroxyl number between about 30 and about 300, and is the reaction product of carbon-carbon double bond-reactive monoethylenically unsaturated monomer with hydroxy functional carbon-carbon double bond-bearing branched polysiloxane macromer. The macromer is the reaction product of (i) epoxy monomer having the formula: ##STR1## with (ii) hydroxy functional polysiloxane reactant containing 0-10 urethane linkages per molecule.Type: GrantFiled: February 24, 1987Date of Patent: June 28, 1988Assignee: E. I. Du Pont De Nemours and CompanyInventors: Rose A. Ryntz, Kenneth R. Kurple
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Patent number: 4754016Abstract: A process for preparing a polyamide which comprises polycondensing a dicarboxylic acid and a diamine by using a combination of at least one phosphine and at least one disulfide as the condensing agent.Type: GrantFiled: June 3, 1986Date of Patent: June 28, 1988Assignee: Asahi Kasei Kogyo Kabushiki KaishaInventors: Hideo Ai, Akihiko Ikeda, Yoshio Matsuoka
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Patent number: 4697026Abstract: Acryl functional silicone compounds are made by reacting an amine functional silicon compound with a di- or multi-functional acryl compound by a Michael-type addition reaction. These acryl functional silicone compounds are purer than others because no catalyst is used and no by-products are formed. These acryl functional silicone compounds can be used as adhesion promoters and as coating compositions which can be cured by ultraviolet radiation.Type: GrantFiled: January 6, 1986Date of Patent: September 29, 1987Assignee: Dow Corning CorporationInventors: Chi-long Lee, Michael A. Lutz