Two Silicons Bonded Directly To The Same Oxygen Patents (Class 556/439)
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Patent number: 6313329Abstract: This invention relates to composition of matter of certain euganol functionalized silicone polymers useful to make substantive antimicrobial agents. These compounds allow for the topical delivery of euganol to the skin surface, where it has a variety of desirable effects.Type: GrantFiled: June 4, 2001Date of Patent: November 6, 2001Inventor: Anthony J. O'Lenick, Jr.
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Patent number: 6265516Abstract: An anti-staining additive comprising a higher unsaturated aliphatic acid ester-modified organosilicon compound that is produced by carrying out an addition reaction between (a) a higher unsaturated aliphatic acid ester that contains more than one aliphatically unsaturated bond in each molecule and (b) an organosilicon compounds that contains at least 1 silicon-bonded hydrogen atom in each molecule with the aliphatically unsaturated bonds in component (a) present in molar excess over the silicon-bonded hydrogen in component (b). The additive can be used at 0.01 to 50 weight percent in a polyorganosiloxane composition that cures at room temperature by a condensation reaction.Type: GrantFiled: February 18, 2000Date of Patent: July 24, 2001Assignee: Dow Corning Toray Silicone Company, Ltd.Inventors: Tadashi Okawa, Wataru Nishiumi, Seiji Hori
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Patent number: 6218560Abstract: The invention relates to organosilicon compounds modified with mono- or polyhydroxylated hydrocarbon radicals or carbohydrate derivatives and containing units of the general formula (I) AaRbSiXcO(4-a-b-c)/2 (I), in which R is a substituted or unsubstituted hydrocarbon radical, X is chlorine, or an alkoxy radical, A is a hydroxylated hydrocarbon, preferably a mono-, oligo-, or polysaccharide, and the sum of a, b, and c≦4. The organosilicon compounds are interface-active.Type: GrantFiled: November 23, 1999Date of Patent: April 17, 2001Assignee: Wacker-Chemie GmbHInventors: Bors Cajus Abele, Thomas Koini
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Patent number: 6136994Abstract: A method for the preparation of a hydrophobic clay by contacting an aqueous suspension of the clay with an organosilane of formula R.sup.1.sub.a SiX.sub.4-a or an organosiloxane comprising units of formula R.sup.2.sub.n SiO.sub.(4-n)/2 in the presence of an acid and a water-miscible solvent. The resulting clay suspension is then contacted with a water-immiscible solvent to effect separation of the hydrophobed clay from the suspension.Type: GrantFiled: December 18, 1998Date of Patent: October 24, 2000Assignee: Dow Corning LimitedInventors: Julie Joseph, Bryan Thomas
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Patent number: 6121404Abstract: A method of making .beta.-diketo functional silanes and siloxanes in which the acetoacetic ester moiety, i.e., .beta.-diketo CH.sub.3 COCH.sub.2 CO--, is attached to the oxygen or nitrogen atoms of C--OH or C--NH.sub.2 containing functional silanes or siloxanes, by reacting the organosilicon nucleophile with diketene, as illustrated below for the C--OH containing functional silane. ##STR1## The products can be formed into curable compositions, or used as additives in durable textile treatments, polyurethane foams, and hair care applications.Type: GrantFiled: July 6, 1998Date of Patent: September 19, 2000Assignee: Dow Corning CorporationInventor: Donald Taylor Liles
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Patent number: 6118014Abstract: New compositions of matter are organofunctional cocyclic siloxanes of the formula ##STR1## where R1 to R3 are alkyl groups of 1-6 carbon atoms; a and b have a value of 1-10; and R4 is an aminoalkyl group or a carboxyalkyl group. Some representative R4 groups are --CH.sub.2 CH.sub.2 CH.sub.2 NH.sub.2, --CH.sub.2 CH.sub.2 CH.sub.2 NHCH.sub.2 CH.sub.2 NH.sub.2, --CH.sub.2 CH(CH.sub.3)CH.sub.2 NHCH.sub.2 CH.sub.2 NH.sub.2, and --(CH.sub.2).sub.10 COOH.Type: GrantFiled: July 16, 1999Date of Patent: September 12, 2000Assignee: Dow Corning CorporationInventors: Daniel Joseph Halloran, Brett Lee Zimmerman
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Patent number: 6114561Abstract: The invention discloses novel sunscreening ester made by reacting (a) a carboxy silicone, and (b) the hydroxyl group of a sun screening agent. The compounds of the invention by virtue of (i) the silicone group, (ii) the sun screen group present in the compound are extremely efficient skin care compounds used in topical treatment of skin.Type: GrantFiled: December 2, 1999Date of Patent: September 5, 2000Inventor: Anthony J. O'Lenick, Jr.
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Patent number: 6107504Abstract: There are herein disclosed a siloxane compound represented by the formula (1) ##STR1## wherein R.sup.2 is a methyl group or a phenyl group; R.sup.3 is an alkyl group having 1 to 6 carbon atoms or A; l is an integer of 0 to 500; m is an integer of 0 to 1,000; n is an integer of 0 to 500; p is an integer of 0 to 2; and A is an ester group represented by the formula (2) ##STR2## wherein R.sup.6 is hydrogen or the methyl group; s is an integer of 0 to 100; and R.sup.1 is a branched or a straight-chain alkyl group having 1 to 30 carbon atoms, a cyclohexyl group, a phenyl group, a benzyl group, a glycidyl group, or a fluorine-containing organic group represented by the formula (3) ##STR3## wherein R.sup.4 is a saturated hydrocarbon having 0 to 6 carbon atoms, and when 0 is selected, R.sup.4 is not present; R.sup.5 is hydrogen or fluorine; a is 0 or 1; and b and c are each an integer of 0 to 20, but for a, b and c, 0 is not simultaneously selected, and a preparation method of the above siloxane compound.Type: GrantFiled: October 28, 1998Date of Patent: August 22, 2000Assignee: Chisso CorporationInventors: Yuuichi Yamamoto, Koichi Ayama
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Patent number: 5973176Abstract: The invention relates to hydrolyzable fluorinate silanes, methods of their roduction and of their use for producing silicic acid polycondensates and hetero silicic acid polycondensats The silanes in accordance with the invention are of the general formula: {[R'-(Y).sub.e ].sub.c+1 (C.sub.6 F.sub.4-c) (C.sub.6 F.sub.4).sub.d }.sub.f SiR.sub.a X.sub.b (I) in which the groups and indices are identical or different and have the following meaning:R=alkyl, alkenyl, aryl, alkylaryl or arylalkyl, substituted if required, each with 1 to 15 carbon atoms, whereby the groups may be interrupted by oxygen or sulfur atoms, ester, carbonyl, amide or amino groups;R'=I, Br, Cl (if d.noteq.0), F (if d.noteq.0), H (if X.noteq.H or R.noteq.methyl or e=1) or an organic group with 1 to 50 carbon atoms;X=hydrogen, halogen except fluorine, hydroxy, alkoxy, acyloxy, alkylcarbonyl, alkoxycarbonyl or NR".sub.Type: GrantFiled: April 3, 1997Date of Patent: October 26, 1999Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.Inventors: Christof Roscher, Michael Popall, Birke-E. Olsowski
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Patent number: 5914420Abstract: Compositions of unstrained perfluorinated organo substituted cyclosiloxanes of formula (I): ##STR1## wherein m is an integer of 1 to 12; n is an integer of 1 to 4; X is a divalent radical which may include O, NH, N(CH.sub.3), OC(O), NHC(O), N(CH.sub.3)C(O)CH.sub.2 ; and R.sup.F is a perfluorinated straight chain or branched chain monovalent alkyl radical of 1 to 25 carbon atoms; or R.sup.F is a perfluorinated ether radical of the general formula (II): ##STR2## wherein p is an integer of 1 to 10 are described, along with copolymer compositions prepared from these cyclopolysiloxanes and from mixtures of these cyclosiloxanes and other siloxanes.Type: GrantFiled: May 29, 1998Date of Patent: June 22, 1999Assignee: PCR, Inc.Inventors: Mark A. Buese, John Scott Shaffer
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Patent number: 5892086Abstract: Compositions of unstrained perfluorinated ether organo substituted cyclosiloxanes of formula (I): ##STR1## wherein m is an integer of 1 to 12; n is an integer of 1 to 4; X is a divalent radical which may include O, NH, N(CH.sub.3), OC(O), NHC(O), N(CH.sub.3)C(O)CH.sub.2 ; and R.sup.F is a perfluorinated ether radical of the general formula (II): ##STR2## wherein p is an integer of 1 to 10 are described, along with copolymer compositions prepared from these cyclopolysiloxanes and from mixtures of these cyclosiloxanes and other siloxanes.Type: GrantFiled: May 29, 1998Date of Patent: April 6, 1999Assignee: PCR, Inc.Inventors: Mark A. Buese, John Scott Shaffer
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Method for the preparation of acryloxy-functional or methacryloxy-functional organosilicon compounds
Patent number: 5789611Abstract: An method for the synthesis of high-purity (meth)acryloxy-functional organosilicon compounds in which the generation of reaction by-products is inhibited and gelation of the reaction product does not occur comprising an addition reaction between(A) an acrylate ester or methacrylate ester of an aliphatically unsaturated alcohol and(B) a SiH-functional organosilicon compound in the presence of(C) a hydrosilylation-reaction catalyst and(D) a special type of compound such as the zinc salt of 2-mercaptobenzothiazole or zinc dimethyldithiocarbamate.Type: GrantFiled: November 24, 1997Date of Patent: August 4, 1998Assignee: Dow Corning Toray Silicone Co., Ltd.Inventors: Kazuhiro Isoyama, Yokichi Yamamoto -
Patent number: 5705823Abstract: There is now provided a polyol composition containing a polyol having polyester linkages and a number average molecular weight of 400 or more, and at least about 8 php of a silicone-containing surfactant polymer. Either mixed into the polyol composition at the time of foaming, mixed into an isocyanate, or both, is an aliphatic or cycloaliphatic C.sub.4 -C.sub.7 hydrocarbon. The polyol composition is used to make a polyisocyanate based closed cell rigid foam by reacting an organic isocyanate and the polyol composition in the presence of an aliphatic or cycloaliphatic C.sub.4 -C.sub.7 hydrocarbon blowing agent.Type: GrantFiled: October 27, 1995Date of Patent: January 6, 1998Assignee: BASF CorporationInventor: Thomas L. Fishback
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Patent number: 5686499Abstract: There is now provided a closed cell rigid polyurethane foam made from a polyol composition containing a polyol having polyester linkages and a number average molecular weight of 400 or more, and at least about 8 php of a silicone-containing surfactant polymer. Either mixed into the polyol composition at the time of foaming, mixed into an isocyanate, or both, is an aliphatic or cycloaliphatic C.sub.4 -C.sub.7 hydrocarbon.Type: GrantFiled: October 27, 1995Date of Patent: November 11, 1997Assignee: BASF CorporationInventor: Thomas L. Fishback
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Patent number: 5637746Abstract: The invention relates to a process for preparing silanes or siloxanes having carboxyl functionalities, wherein a hydrogen silane or hydrogen siloxane compound is reacted with a tertiary butyl ester having an olefinic double bond and the sil(ox) ane-bonded tertiary butyl ester group is subsequently converted into the corresponding carboxyl group with elimination of isobutene.Type: GrantFiled: April 25, 1996Date of Patent: June 10, 1997Assignee: Th. Goldschmidt AG.Inventors: Arno Knebelkamp, Peter Lersch, Christian Weitemeyer
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Patent number: 5629437Abstract: The invention is directed to water soluble silane compositions that are essentially alcohol free comprising compounds of the structure:(RO).sub.3-x (HO).sub.x Si(CH.sub.2).sub.3 (OCH.sub.2 CH.sub.2).sub.b OH(Ia ){(RO).sub.2-y (HO).sub.y Si(CH.sub.2).sub.3 (OCH.sub.2 CH.sub.2).sub.b O}.sub.z (IIa)wherein x ranges from 1 to 3, b ranges from 1 to 30, y is 0 or 1, and z ranges from 1 to 3, and R is an aryl or alkyl having from 1 to 10 carbon atoms. The invention further comprises methods for forming such compounds and for their use in preparing water soluble silane compositions by reaction with relative insoluble silane compounds terminated in functional groups selected from the group comprising epoxies, vinyls, mercaptos and acrylates.Type: GrantFiled: January 30, 1996Date of Patent: May 13, 1997Assignee: Huls America Inc.Inventors: Loren Linder, Joel Zazyczny
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Patent number: 5616757Abstract: Organosilicon-containing materials are useful in articles such as biomedical devices, including contact lenses.Type: GrantFiled: April 8, 1993Date of Patent: April 1, 1997Assignee: Bausch & Lomb IncorporatedInventors: Ronald E. Bambury, Jay F. Kunzler
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Patent number: 5610258Abstract: The crosslinkable nematic polyorganosiloxanes are cyclic polyorganosiloxanes containing at least three different mesogenic side groups per polyorganosiloxane, where at least two mesogenic side groups per polyorganosiloxane each contain at least three radicals selected from aromatic, heteroaromatic and cycloaliphatic radicals. They contain a methacrylic or acrylic group in at least one of the mesogenic side groups. The cyclic polyorganosiloxanes have a broad nematic phase and can be readily aligned.Type: GrantFiled: October 11, 1995Date of Patent: March 11, 1997Assignee: Consortium f ur elektrochemische Industrie GmbHInventors: Hans-Peter Weitzel, Susanne Weber-Koegl, Sotirios Chatzinerantzis
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Patent number: 5504234Abstract: A novel method is disclosed for the preparation of a (meth)acryloxyalkyl group-containing organopolysiloxane having a linear structure by the ring-opening siloxane rearrangement polymerization reaction of a (meth)acryloxyalkyl group-containing cyclic organopolysiloxane oligomer either alone or in combination with a cyclic organopolysiloxane oligomer having no (meth)acryloxyalkyl groups. Different from conventional acidic catalyst, the reaction can be promoted by the use of a cation-exchange resin in the H.sup.+ form which can be readily removed from the polymerization mixture after completion of the polymerization reaction leaving no acidic matter which influences on the stability of the product. The catalytic efficiency of the cation-exchange resin can be further enhanced when the resin is, prior to contacting with the cyclic organopolysiloxane oligomer(s), impregnated or swollen with a polar organic solvent such as tetrahydrofuran.Type: GrantFiled: May 26, 1995Date of Patent: April 2, 1996Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Naoki Omura, Toshio Ohba, Shinji Irifune
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Patent number: 5504233Abstract: The present invention relates to a process for the preparation of organosilicon compounds containing carboxyl groups. According to the process of the invention, organosilicon compounds containing carboxyl groups are prepared in the presence of Bronstedt or Lewis acids at relatively low temperatures thus avoiding undesirable side effects of higher temperatures such as gelling due to crosslinking.Type: GrantFiled: February 13, 1995Date of Patent: April 2, 1996Assignee: Wacker-Chemie GmbHInventors: Johann Bindl, Herman Petersen, Konrad Bachhuber, Monika Ott
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Patent number: 5492994Abstract: The novel organosiloxane compounds of the present invention are characterized by the presence of 1) a silicon atom containing at least two alkoxy or other hydrolyzable groups and the group --OR.sup.1 Si.dbd. wherein R.sup.1 represents a divalent organic group comprising carbon, hydrogen, and, optionally, oxygen, and 2) a silicon bonded hydrogen atom or alkenyl radical. A preferred method for preparing the compounds is by the reaction of 1) a silane containing a silicon-bonded alkenyloxy group and at least two silicon-bonded hydrolyzable groups or a precursor of said hydrolyzable groups and 2) an organohydrogensiloxane. The reaction is conducted in the presence of a hydrosilation catalyst.Type: GrantFiled: January 12, 1995Date of Patent: February 20, 1996Assignee: Dow Corning CorporationInventors: Theresa E. Gentle, Michael A. Lutz
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Patent number: 5488123Abstract: The present invention relates to polycondensates of the general formula I ##STR1## in which ##STR2## and the other variables are defined as indicated in claim 1, processes for their preparation and their use.Type: GrantFiled: February 6, 1995Date of Patent: January 30, 1996Assignee: Cassella AGInventors: Fritz Engelhardt, Jurgen Kuhlwein, Wilfried Schuler, Ralf Zerrer, Werner Antwerpen
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Patent number: 5484950Abstract: A process for the selective monoadditon of an olefin or acetylene to a siloxane which contains two reactive Si--H bonds to produce a product in which only one of the two Si--H functions has added across the olefin or acetylene is disclosed. A process for making unsymmetrical siloxanes from symmetrical dihydrosiloxanes and products of both of these processes are also disclosed. Products are represented by the formula I in which R.sup.1 and R.sup.Type: GrantFiled: December 21, 1992Date of Patent: January 16, 1996Assignee: Polyset Company, Inc.Inventor: James V. Crivello
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Patent number: 5475126Abstract: A silicone-type benzophenone derivative represented by Formula 1 below, an ultraviolet light absorbent and an endermic liniment which contains it. ##STR1## The silicone-type benzophenone derivative of the present invention exhibits a superior ability to absorb UV-A and UV-B and is compatible with silicone-type bases.Type: GrantFiled: November 23, 1994Date of Patent: December 12, 1995Assignee: Shiseido Company Ltd.Inventors: Masashi Yoshida, Keiichi Uehara
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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: 5461173Abstract: A fluorine-containing organosilicon compound represented by the following general formula (1): ##STR1## wherein Rf represents a perfluoroalkyl group, a perfluorooxyalkyl group, a perfluoroalkylene group, or a perfluorooxyalkylene group, A represents a bivalent organic group, R.sup.1 represents an unsubstituted or substituted monovalent hydrocarbon group, X represents a hydrolyzable group, Y is 1 in the case where the above group Rf represents a perfluoroalkyl group or a perfluorooxyalkyl group or Y is 2 in the case where the above group Rf represents a perfluoroalkylene group or a perfluorooxyalkylene group, m is an integer of 0 to 2, and n is an integer of 1 to 3, with m+n being 3 or less. Since this compound has an acryloyloxy group(s), the compound when irradiated with ultraviolet light can be easily cured within a short period of time, for example, within about 1 to 2 min in the presence of a photopolymerization initiator.Type: GrantFiled: December 27, 1994Date of Patent: October 24, 1995Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Shinichi Sato, Takashi Matsuda, Takafumi Sakamoto, Masatoshi Arai
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Patent number: 5437817Abstract: Liquid crystalline organopolysiloxane is provided having the general formula:R.sub.a (A).sub.b (B).sub.c SiO.sub.(4-a-b-c)/2wherein R is independently selected from the group consisting of a hydrogen atom, hydrocarbon group having i to 4 carbon atoms, and phenyl group, A is a group of the formula: ##STR1## wherein m, n, and x are integers in the range: m.gtoreq.3, n.gtoreq.2, 5.ltoreq.m+nx.ltoreq.15, x=1 or 2, B is an organic chromophore group having an absorption peak in the visible spectrum, a, b, and c are numbers in the range: 1.ltoreq.a<2, 0<b+c.ltoreq.1, 0.45.ltoreq.b(b+c).ltoreq.0.95, and 1<a+b+c.ltoreq.3. This organopolysiloxane as a high molecular weight liquid crystal is combined with a low molecular weight liquid crystal to form a liquid crystal composition.Type: GrantFiled: November 27, 1991Date of Patent: August 1, 1995Assignees: Shin-Etsu Chemical Company, Limited, Toyota Jidosha Kabushiki KaishaInventors: Takashi Kondou, Masaaki Yamaya, Hiroshi Yoshioka, Yasuhiro Ohtsuka, Kazuo Tojima, Yasufumi Shibata, Naomi Ohkuwa, Shinobu Okayama
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Patent number: 5385999Abstract: This invention relates to polysiloxanes having fluoroaliphatic- and carboxyl- containing terminal groups, their preparation and their use in imparting water-, oil- and soil-repellency and a soft hand to fibrous substrates such as leather, and to the resulting treated substrate.Type: GrantFiled: November 3, 1993Date of Patent: January 31, 1995Assignee: Minnesota Mining and Manufacturing CompanyInventors: Claude D'Anvers, Dirk M. Coppens
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Patent number: 5376733Abstract: A polyimidesilicone resin precursor composition which comprises a polysiloxane of the following general formula ##STR1## wherein R is a monovalent organic group having up to 10 carbon atoms, R.sup.1 represents a hydrogen atom or a monovalent organic group having up to 10 carbon atoms, and m is an integer not smaller than 3, and a polyamic acid or a polyimide obtained from the polyamic acid. The composition is cured at a relatively low temperature within a short time to provide a cured film having improved solvent and heat resistances and good adhesion to various substrates.Type: GrantFiled: March 23, 1994Date of Patent: December 27, 1994Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Hiroshige Okinoshima, Hideto Kato, Satoshi Toyoda
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Patent number: 5359101Abstract: Anionically polymerizable monomers containing at least one silicon or titanium atom form polymeric photoresists having good dry etch resistance for use in microlithography. The monomers are of the formula ##STR1## wherein A is --H or --CH.dbd.CH.sub.2 ; X is a strong electron withdrawing group;Y is a strong electron withdrawing group containing at least one silicon or titanium atom.Preferably Y is ##STR2## wherein n is 1-5 and R.sup.2, R.sup.3 and R.sup.4 are C.sub.1 -C.sub.10 alkyl. A particularly preferred monomer is 3-trimethylsilylpropyl 2-cyanoacrylate.Methods for applying a resist coating by vapor deposition of these monomers and exposure to radiation are described. A positive or negative tone image can be produced, depending upon the imaging method employed. The imaging layer may be applied over a planarizing layer to form a multilayer photoresist.Type: GrantFiled: October 1, 1991Date of Patent: October 25, 1994Assignee: Loctite Ireland, Ltd.Inventors: John Woods, Pauline Coakley
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Patent number: 5332796Abstract: Novel organopolysiloxanes containing both a (meth)acryl group and a carboxyl group in a molecule are well compatible with organic resins and useful as resin modifiers.Type: GrantFiled: May 7, 1993Date of Patent: July 26, 1994Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Yuji Yoshikawa, Mitsuhiro Takarada
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Patent number: 5326844Abstract: A primer composition has blended therein an organic silicon compound having in a molecule at least one group of the formula: ##STR1## wherein R.sup.1 is a monovalent hydrocarbon group or a group represented by QSi( R.sup.4 O).sub.a (R.sup.5).sub.3-a, Q is a divalent organic group, R.sup.4 and R.sup.5 each are a monovalent hydrocarbon group, a is an integer of 0 to 3, R.sup.2 and R.sup.3 each are a hydrogen atom or a monovalent hydrocarbon group, and n is 0, 1 or 2. The primer composition is a useful adhesive since it is effective for joining silicone elastomers and similar adherends to supports such as paint coated metals and resins.Type: GrantFiled: April 7, 1993Date of Patent: July 5, 1994Assignee: Shin-Etsu Chemical Company, LimitedInventors: Hironao Fujiki, Masanobu Miyakoshi, Takeo Yoshida, Yoshifumi Inoue, Masatoshi Arai
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Patent number: 5300239Abstract: A treatment agent in which a base component and a crosslinking component contain silicon-bonded perfluoroalkyl groups and curing groups. The components are mutually soluble to homogeneity as a consequence, and this makes possible long-term storage of the mixture of the two components. Moreover, when this treatment agent is used on fibers, textiles, plastics, metals, or porous inorganics and cured, an excellent water repellency and oil repellency are generated because a uniform film is developed.Type: GrantFiled: March 11, 1993Date of Patent: April 5, 1994Assignee: Dow Corning Toray Silicone Co., Ltd.Inventors: Masaru Ozaki, Isao Ona
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Patent number: 5292847Abstract: The invention relates to a series of novel silicone alkoxylates a process for their preparation and the application of these materials as emulsifiers for a variety of oil phases. This class of compounds are prepared by the reaction of a carboxy functional silicone and a ethylene oxide, propylene oxide or mixtures thereof. The products provide unique surfactant properties, specifically emulsification properties for many oil phases.The compounds are useful for preparation of ultra mild products for use personal care applications for skin, hair care and related applications.Type: GrantFiled: September 29, 1993Date of Patent: March 8, 1994Assignee: Siltech CorporationInventor: Anthony J. O'Lenick, Jr.
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Patent number: 5254708Abstract: The present invention relates to substituted cyclopentanone and cyclohexanone derivatives and substituted cyclopentenone and cyclohexenone derivatives, which are useful as intermediates for pharmaceutical products and agricultural chemicals and especially useful for the synthesis of prostaglandins, and also to a process for producing the same.Type: GrantFiled: December 14, 1990Date of Patent: October 19, 1993Assignee: Nissan Chemical Industries, Ltd.Inventors: Fumie Sato, Kazutaka Arai, Katsuaki Miyaji
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Patent number: 5243009Abstract: Silicone-polycarbonate block copolymers are provided resulting from the reaction of certain siloxy aromatic imide siloxanes or hydroxyaromatic ester siloxanes which are made by effecting reaction between an organosiloxane having terminal aromatic anhydride groups or aromatic haloacyl groups which are each attached to silicon by silicon arylene linkages with an appropriate bishydroxyarylene compounds or hydroxyarylene amino compound. The aforementioned hydroxyaromatic imide siloxanes or hydroxyaromatic ester siloxanes are then phosgenated with a dihydric phenol or an aromatic bischloroformate. The silicone-polycarbonate block copolymers have been found to be flame retardant and useful as dielectric films and membranes, and as flame retardants in aromatic polycarbonates.Type: GrantFiled: March 16, 1992Date of Patent: September 7, 1993Assignee: General Electric CompanyInventors: Jonathan D. Rich, Philip J. McDermott, Gary C. Davis, Peter P. Policastro, Karen A. Regh, Pamela K. Hernandez, Thomas L. Guggenheim
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Patent number: 5239085Abstract: An organocyclosiloxane having utility as a coupling agent is disclosed said organocyclosiloxane having the general formula ##STR1## wherein R.sup.1 is independently selected from monovalent hydrocarbon groups having 1 to 8 carbons, R.sup.2 is selected from the group consisting of an alkoxy group and an alkoxysilylalkyl group, R.sup.3 is an organofunctional group selected from the group consisting of glycidoxyalkyl, methacryloxyalkyl, N-(trialkylsilyl)aminoalkyl (hydroxyphenyl)alkyl and haloalkyl x is 1 to 6 and y is 1 to 6, with the proviso that x+y is an integer having a value of 3 to 8.Type: GrantFiled: February 26, 1992Date of Patent: August 24, 1993Assignee: Dow Corning Toray Silicone Co., Ltd.Inventors: Hiroji Enami, Shoji Akamatsu
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Patent number: 5233071Abstract: Alpha-fluorinated olefins are hydrosilated using selected cobalt compounds as catalysts. The products are useful in coatings, and as chemical intermediates, elastomers, and caulks.Type: GrantFiled: March 17, 1992Date of Patent: August 3, 1993Assignee: E. I. Du Pont de Nemours and CompanyInventor: Lech Wilczek
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Patent number: 5233067Abstract: A method for metallizing a polymeric substrate is disclosed. The method includes contacting a surface of an etched polymeric substrate with a silane coupling agent and depositing a metallic layer over the surface. The silane coupling agent forms a chemical linkage between the substrate and the metallic layer. A coupling agent composition and a metallized polymeric substrate are also described.Type: GrantFiled: May 8, 1990Date of Patent: August 3, 1993Assignee: Rogers CorporationInventors: Gwo Swei, Kenneth W. Kristal
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Patent number: 5183912Abstract: An organopentasiloxane having the formulaA--R.sup.1 --SiMe.sub.2 (OSiMe.sub.2).sub.3 OSiR.sup.2 .sub.(3-n) (OR.sup.2).sub.nwherein Me denotes a methyl radical; A is a group selected from the group consisting of methacryloxy, glycidoxy and amino; R.sup.1 is a divalent organic group selected from the group consisting of an alkylene group having at least 2 carbon atoms and an alkyleneoxyalkylene group; R.sup.2 is independently selected from monovalent hydrocarbon groups free of aliphatically unsaturated bonds; and n is an integer having a value of 1 to 3, and methods for the preparation thereof, are disclosed.Type: GrantFiled: February 6, 1992Date of Patent: February 2, 1993Assignee: Dow Corning Toray Silicone Co., Ltd.Inventor: Tadashi Okawa
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Patent number: 5158702Abstract: The present invention relates to compounds of the formula ##STR1## in which Z is a radical bonded to the benzene ring in the 2-, 3-, 5- or 6-position, namely a halogen atom, a cyano group or a hydroxyl group,n is 0, 1 or 2,R" is a radical of the formulaR'''--[Si(R*).sub.2 ](CH.sub.2).sub.y R""-- (9),in whichY is an integer from 4 to 18,R''' is as defined in the description,R* is identical or different, optionally substituted C.sub.1 - to C.sub.18 -hydrocarbon or hydrocarbonoxy radicals,R"" is a radical of the formula --(E).sub.z -- which is optionally bonded to the carboxy group via a phenylene or biphenylene radical, whereE is a divalent radical of the formula --O-- or --Si(R*).sub.2 --, andZ is the number 0 or 1, and the radicalR' is a halogen atom, a cyano radical, a cholesteryl radical, a radical as defined for R* or of the formula --C.sub.6 H.sub.4 --R**, andR** may have any meaning of R*, with the exception of an n-octyloxy or an n-decyloxy radical,and the preparation and use thereof.Type: GrantFiled: June 22, 1990Date of Patent: October 27, 1992Assignee: Consortium fur Elektrochemische Industrie GmbHInventors: Wolfgang Haas, Norman Haberle, Rainer Winkler, Franz-Heinrich Kreuzer
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Patent number: 5118772Abstract: Novel, alkenyloxy-functional organosilicon compounds are described which contain at least one Si-bonded Y radical per molecule having the formula--(CH.sub.2).sub.2 --R.sup.2 --(A--R.sup.3).sub.z --O--CH.dbd.CH--CH.sub.2 --R.sup.4 (I),in whichA represents --O--, --S-- or ##STR1## R.sup.2 represents a linear or branched alkylene radical having from 1 to 7 carbon atom(s) per radical or a cycloalkylene radical having from 5 to 7 carbon atoms per radical, R.sup.3 represents a linear or branched alkylene radical having from 2 to 4 carbon atoms per radical, which may be substituted by a hydroxyl group, methoxy group, ethoxy group or trimethylsiloxy group, R.sup.4 represents a hydrogen atom or an alkyl radical having from 1 to 4 carbon atoms(s) per radical, and z is 0, 1 or 2.The alkenyloxy-functional organosilicon compounds are preferably silanes or organopolysiloxanes.The alkenyloxy-functional organopolysiloxanes can be crosslinked, for example, with ultraviolet light.Type: GrantFiled: June 21, 1991Date of Patent: June 2, 1992Assignee: Wacker-Chemie GmbHInventors: Christian Herzig, Doris Gilch
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Patent number: 5106530Abstract: The present invention relates to compounds of the formula ##STR1## in which Z is a halogen atom, a cyano group or a hydroxyl group,n is 0, 1 or 2,R' is a radical of the formulaR'"--[Si(R*).sub.2 ].sub.x (CH.sub.2).sub.y R""-- (9),in whichx is the number 0 or 1,y is an integer from 1 to 18,R'"is a defined in the description,R* is identical or different, optionally substituted C.sub.1 - to C.sub.18 -hydrocarbon or hydrocarbonoxy radicals,R"" is a phenylene or biphenylene radical or a radical of the formula --E--, whereE is a divalent radical of the formula --O-- or --[Si(R*).sub.2 ].sub.z --, andz is the number 0 or 1,and the compounds contain at least one group of the formula --Si(R*).sub.2 -- per molecule, and the radicalR" is a cholesteryl radical, a radical as defined for R* or a radical of the formula --C.sub.6 H.sub.4 --R*,and the preparation and use thereof.Type: GrantFiled: June 22, 1990Date of Patent: April 21, 1992Assignee: Consortium fur Elektrochemische Ind.Inventors: Wolfgang Haas, Norman Haberle, Rainer Winkler, Franz-Heinrich Kreuzer
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Patent number: 5082959Abstract: An improved process is disclosed for preparation of silicon-containing aromatic polyacids by liquid phase oxidation of a silyl compound in the presence of oxygen and a catalyst comprising cobalt-manganese-bromine. 2-Trimethylsilyl-p-xylene is oxidized to 2-trimethylsilyl-terephthalic acid; 5-trimethylsilyl-m-xylene is oxidized to 5-trimethylsilyl-isophthalic acid, 2,5-bis (trimethylsilyl)-p-xylene is oxidized to 2,5-bis (trimethylsilyl)-terephthalic acid; 5-trimethylsilyl-pseudocumene is oxidized to 1,2,4-tricarboxy-5-trimethylsilyl benzene; and 1,3-bis-(p-tolyl)-tetramethyl-disiloxane is oxidized to 1,3-bis(p-carboxyphenyl)-tetramethyl-disiloxane.Type: GrantFiled: September 6, 1990Date of Patent: January 21, 1992Assignee: Amoco CorporationInventors: Andreas B. Ernst, Howard B. Yokelson, Robert K. Gipe
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Patent number: 5077422Abstract: Organosilicon compounds having at least one unit of the general formula ##STR1## in which R represents alkyl, R' is a divalent alkylene, oxyalkylene, alkenylene or oxyalkenylene, Z represents an alkyl, alkoxy or hydroxyl group, a has a value of 0, 1, 2, or 3 and c is 0 or 1, wherein at least one of Z and R' is linked to the multivalent aryl group via an ether linkage, are useful for absorbing UV radiation. Especially if polymeric (with e.g. diorganosiloxane units) they can be incorporated in sunscreen preparations to improve their substantivity to the skin. A process for preparing the compounds is also disclosed.Type: GrantFiled: November 6, 1989Date of Patent: December 31, 1991Assignee: Dow Corning LimitedInventors: Andre R. L. Colas, Stephen E. Cray, Georg Frater
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Patent number: 5057549Abstract: Novel, alkenyloxy-functional organosilicon compounds are described which contain at least one Si-bonded Y radical per molecule having the formula--(CH.sub.2).sub.2 --R.sup.2 --(A--R.sup.3).sub.z --O--CH.dbd.CH--CH.sub.2 --R.sup.4 (I),in which A represents --O--, --S-- or ##STR1## R.sup.2 represents a linear or branched alkylene radical having from 1 to 7 carbon atom(s) per radical or a cycloalkylene radical having from 5 to 7 carbon atoms per radical, R.sup.3 represents a linear or branched alkylene radical having from 2 to 4 carbon atoms per radical, which may be substituted by a hydroxyl group, methoxy group, ethoxy group or trimethylsiloxy group, R.sup.4 represents a hydrogen atom or an alkyl radical having from 1 to 4 carbon atoms(s) per radical, and z is 0, 1, or 2. The alkenyloxy-functional organosilicon compounds are preferably silanes or organopolysiloxanes. The alkenyloxy-functional organopolysiloxanes can be crosslinked, for example, with ultraviolet light.Type: GrantFiled: May 4, 1990Date of Patent: October 15, 1991Assignee: Wacker-Chemie GmbHInventors: Christian Herzig, Doris Gilch
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Patent number: 5053290Abstract: Novel diorganopolysiloxanes containing benzalmalonate functional groups, well adapted as coatings for optical fibers, as well as lubricants for plastic substrates, e.g., PVC substrates, have one of the following formulae: ##STR1## in which A and/or B is a benzalmalonate radical.Type: GrantFiled: September 11, 1989Date of Patent: October 1, 1991Assignee: Rhone-Poulenc ChimieInventors: Edith Canivenc, Serge Forestier, Michel Gay, Gerard Lang, Herve Richard
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Patent number: 4992261Abstract: Organosilicon compounds having at least one unit of the general formula ##STR1## in which R represents alkyl, R' is a divalent alkylene, oxyalkylene, alkenylene or oxyalkenylene, Z represents an alkyl, alkoxy or hydroxyl group, a has a value of 0, 1, 2 or 3 and c is 0 or 1, wherein at least one of Z and R' is linked to the multivalent aryl group via an ether linkage, are useful for absorbing UV radiation. Especially if polymeric (with e.g. diorganosiloxane units) they can be incorporated in sunscreen preparations to improve their substantivity to the skin. A process for preparing the compounds is also disclosed.Type: GrantFiled: November 6, 1989Date of Patent: February 12, 1991Assignee: Dow Corning LimitedInventors: Andre R. L. Colas, Stephen E. Cray, Georg Frater
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Patent number: RE34415Abstract: A novel method is provided for preparing carboxy functional silicones, comprising the steps of:(1) addition reacting a mixture of ingredients containing(A) an olefin-terminated organoacyloxysilane;(B) an organohydrogenpolysiloxane, and(C) a precious metal or a precious metal-containing catalyst, and(2) hydrolyzing the addition reaction product prepared in step (1).Type: GrantFiled: August 26, 1991Date of Patent: October 19, 1993Assignee: General Electric CompanyInventor: Frank J. Traver
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Patent number: RE35462Abstract: The present invention relates to compounds of the formula ##STR1## in which Z is a halogen atom, a cyano group or a hydroxyl group,n is 0, 1 or 2,R' is a radical of the formulaR"'--[Si(R*).sub.2 ].sub.x (CH.sub.2).sub.y R""-- (9),in whichx is the number 0 or 1,y is an integer from 1 to 18,R"'is a defined in the description,R* is identical or different, optionally substituted C.sub.1 - to C.sub.18 -hydrocarbon or hydrocarbonoxy radicals,R"" is a phenylene or biphenylene radical or a radical of the formula --E--, whereE is a divalent radical of the formula --O-- or --[Si(R*).sub.2 ].sub.z --, andz is the number 0 or 1,and the compounds contain at least one group of the formula --Si(R*).sub.2 -- per molecule, and the radicalR" is a cholesteryl radical, a radical as defined for R* or a radical of the formula --C.sub.6 H.sub.4 --R*,and the preparation and use thereof.Type: GrantFiled: February 7, 1994Date of Patent: February 25, 1997Assignee: Consortium fur elekochemische Ind. GmbHInventors: Wolfgang Haas, Norman Haberle, Rainer Winkler, Franz-Heinrich Kreuzer