Nitrogen Is Bonded Directly To The -c(=x)- Group Patents (Class 556/419)
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Patent number: 5756485Abstract: The invention relates to novel compounds of the organosiloxane and organosilane type, bearing at least one function derived from salicylic acid. These novel products have, in particular, desquamating and/or anti-aging properties and may be used in topical application.Type: GrantFiled: March 21, 1997Date of Patent: May 26, 1998Assignee: L'OrealInventors: Herve Richard, Madeleine LeDuc, Alain LaGrange
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Patent number: 5739369Abstract: A surface treating agent comprising a reaction product of (A) a fluoroalkyl group-containing alkoxysilane with (B) an amino group-containing alkoxysilane and optionally further with (C) an alkyl group-containing alkoxysilane is water soluble. The agent is diluted with water to form a solution for treating glass and other substrates to impart durable water repellency and other improved properties to the substrates.Type: GrantFiled: April 19, 1996Date of Patent: April 14, 1998Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Kazuyuki Matsumura, Mitsuo Asai, Shoji Ichinohe
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Patent number: 5736246Abstract: A sizing composition is provided that includes at least one silane satisfying the following formula:Si(R.sup.1) (R.sup.2) (R.sup.3) (R.sup.4)wherein:R.sup.1 and R.sup.2 are each, independently, an alkoxy group;R.sup.3 is an alkoxy group or a hydrocarbon radical that optionally contains one or more nitrogens;R.sup.4 is a hydrocarbon radical that optionally contains one or more nitrogens, and includes at least one unsaturated ring substituted with at least one unsaturated chain conjugated with the unsaturated ring,that is useful for coating glass strands for reinforcement of organic or inorganic materials, the glass strands coated with such sizing compositions and the reinforced composite materials prepared therefrom, having mproved corrosion resistance, particularly in alkaline media.Type: GrantFiled: August 29, 1996Date of Patent: April 7, 1998Assignee: Vetrotex FranceInventors: Eric Augier, Didier Muller, Michel Arpin
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Patent number: 5717125Abstract: The invention includes hydrolyzable and polymerizable silanes, methods of making them and using them to obtain silicic acid(hetero)polycondensates and silicic acid(hetero)polymerizates. The hydrolyzable and polymerizable silanes have the formula I, ##STR1## wherein A=O, S, NH or C(O)O;whereinB=a straight chain or branched organic residue with at least one C.dbd.C double bond and from 4 to 50 carbon atoms;R is an alkyl group, alkenyl group, aryl group, alkylaryl group or an arylalkyl group;R' is a substituted or unsubstituted alkylene group, arylene group, arylenealkylene group or alkylenearylene group each having zero to ten carbon atoms, with the proviso that the substituted groups each have at least one oxygen atom, sulfur atom and/or amine group substituent;R.sup.Type: GrantFiled: May 11, 1995Date of Patent: February 10, 1998Assignee: Fraunhofer-Gesellschaft Zur Forderung Der AngewandtenInventors: Herbert Wolter, Werner Storch
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Patent number: 5705586Abstract: Novel organic fluorine compounds are of formula (1): ##STR1## wherein R.sup.1 and R.sup.2 are monovalent hydrocarbon groups, Q.sup.1 is a group of formula (2) or (3): ##STR2## wherein R.sup.3 is a divalent hydrocarbon group which may have an intervening oxygen, nitrogen or silicon atom, R.sup.4 and R.sup.5 are divalent hydrocarbon groups, Rf.sup.1 is a divalent perfluoroalkylene or perfluoropolyether group, and letter a is an integer of 0-10. A curable composition comprising (A) a fluorinated amide compound having at least two aliphatic unsaturated groups of formula (1), (B) a fluorinated organohydrogensiloxane containing at least one monovalent perfluoroalkyl ether or perfluoroalkyl group and at least two hydrosilyl groups, and (C) a platinum group compound cures into elastomers solvent and chemical resistance.Type: GrantFiled: June 22, 1995Date of Patent: January 6, 1998Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Shinichi Sato, Noriyuki Koike, Takashi Matsuda, Hirofumi Kishita, Masatoshi Arai
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Patent number: 5705591Abstract: A room temperature curable fluoropolymer composition is provided which comprises (A) a straight chain fluoropolymer compound containing, in its backbone chain, at least one structure selected from a perfluoroalkylene structure and a perfluoropolyether structure and having a hydrolyzable silyl group at both ends of its molecular chain, (B) an organic compound having at least one carbonyl group per molecule, and (C) one compound selected from (C-1) an organic compound having at least one primary amino group per molecule and (C-2) a compound having at least one proton per molecule and having an acid dissociation constant (pKa) in water of 2 or less. Another room temperature curable composition is also provided which comprises said (A) component, (B') an organosilicon compound having at least two silanol groups per molecule, and (C') a condensation accelerator.Type: GrantFiled: May 29, 1996Date of Patent: January 6, 1998Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Takashi Matsuda, Takafumi Sakamoto, Shinichi Sato, Noriyuki Koike, Yasuo Tarumi, Tsuneo Kimura, Yasushi Yamamoto, Masatoshi Arai
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Patent number: 5674964Abstract: The invention relates to self-curing systems based on polymerizable and hydrolytically condensable or condensed silicon compounds. The systems according to the invention comprise one or more components which contain starter and/or activator systems, at least one component of the system containing a silicon compound of the formula I or Ia, or a precondensed form thereof,{X.sub.a R.sub.b Si?R'(A).sub.c !.sub.(4-a-b) }.sub.x B (I){X.sub.a R.sub.b Si?(R'A).sub.c !.sub.(4-a-b) }.sub.x B (Ia)The invention furthermore relates to activators in the form of silane-bonded tertiary amines of the general formula IX or X.Type: GrantFiled: May 17, 1995Date of Patent: October 7, 1997Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.v.Inventors: Herbert Wolter, Helma Baeuerlein
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Patent number: 5670684Abstract: The present invention provides novel intermediates which are useful for the preparation of excitatory amino acid receptor antagonists. Further provided is a process to enatioselectively prepare hydroisoquinoline compounds with central nervous system activity.Type: GrantFiled: May 19, 1995Date of Patent: September 23, 1997Assignee: Eli Lilly and CompanyInventors: Anita Melikian-Badalian, Paul L. Ornstein
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Patent number: 5665846Abstract: Novel fluorinated amide compounds are of formula (1): ##STR1## wherein R.sup.1 is a monovalent hydrocarbon group; R.sup.2 is a hydrogen atom or a monovalent hydrocarbon group; Q is a group represented by formula (2) or (3): ##STR2## wherein R.sup.3 is a divalent hydrocarbon group which may have at least one intervening atom selected from oxygen, nitrogen and silicon atoms, R.sup.4 and R.sup.5 are divalent hydrocarbon groups; Rf is a divalent perfluoroalkylene or perfluoropolyether group; and a is an integer inclusive of 0. A curable composition comprising (A) a fluorinated amide compound of formula (1), (B) a fluorinated organohydrogensiloxane containing at least one monovalent perfluorooxyalkyl or perfluoroalkyl or divalent perfluorooxyalkylene or perfluoroalkylene group and at least two hydrosilyl groups, and (C) a platinum group compound cures into elastomers having improved solvent and chemical resistance.Type: GrantFiled: January 23, 1996Date of Patent: September 9, 1997Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Shinichi Sato, Noriyuki Koike, Takashi Matsuda, Yasushi Yamamoto
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Patent number: 5658943Abstract: Novel antagonists of endothelin are described, as well as novel intermediates used in their preparation, methods for the preparation and pharmaceutical compositions of the same, which are useful in treating elevated levels of endothelin, essential, renovascular, malignant and pulmonary hypertension, cerebral infarction, myocardial ischemia, cerebral ischemia, congestire heart failure and subarachnoid hemorrhage.Type: GrantFiled: January 5, 1995Date of Patent: August 19, 1997Assignee: Warner-Lambert CompanyInventors: Kent Alan Berryman, Xue-Min Cheng, Annette Marian Doherty, Jeremy John Edmunds, Sylvester Klutchko
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Patent number: 5627251Abstract: An organosilicon compound represented by the general formula: ##STR1## wherein Rf represents a perfluoroalkyl group or a perfluoroalkyl ether group; R.sup.1 may be the same or different and each represent a monovalent hydrocarbon group; R.sup.2 represents an alkylene group; R.sup.3 represents a hydrogen atom or a monovalent hydrocarbon group; and a is an integer of 1 to 4, b is an integer of 1 to 3 and c is an integer of 0 to 3, provided that a, b and c satisfy the relationship of 3.ltoreq.a+b+c.ltoreq.6; is provided. These organosilicon compounds are novel compounds useful as crosslinking agents for addition-curable silicone rubber compositions.Type: GrantFiled: June 16, 1995Date of Patent: May 6, 1997Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Shinichi Sato, Noriyuki Koike, Takashi Matsuda, Kouichi Ishida
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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: 5587151Abstract: Topically applicable sunscreen/cosmetic compositions well suited for enhanced photoprotection of human skin and/or hair against the damaging effects of UV-A and UV-B irradiation, particularly solar radiation, comprise a photoprotecting effective amount of a novel oxanilido-substituted polyorganosiloxane/polyorganosilane having one of the formulae (1) to (3): ##STR1## wherein A is a monovalent oxanilide radical which comprises an alkylene or alkyleneoxy bridging group, which is bonded directly to a silicon atom, and which has the formula (4): ##STR2##Type: GrantFiled: November 17, 1995Date of Patent: December 24, 1996Assignee: L'OrealInventors: Herv e Richard, Madeleine Leduc, Alain LaGrange
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Patent number: 5583244Abstract: Disclosed is a novel organosilicon-containing derivative of pullulan of which an organopolysiloxane moiety having a silethylene linkage is bonded to the glucose residue of pullulan through a urethane linkage. Different from conventional organopolysiloxane-modified pullulans, the inventive derivative is stable against attack of water and exhibits unique properties as a combination of the properties inherent in pullulan and in silicones. The organosilicon-containing pullulan of the invention can be easily prepared under mild reaction conditions by reacting an isocyanato group-containing organopolysiloxane with the glucosic hydroxy groups of pullulan.Type: GrantFiled: November 7, 1995Date of Patent: December 10, 1996Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Satoshi Uchida, Akira Yamamoto, Ikuo Fukui, Mikio Endo, Hiroshi Umezawa, Shigehiro Nagura, Tohru Kubota
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Patent number: 5581007Abstract: A process for preparing an optically active (2S,3S)-allophenylnorstatin derivative (I) is disclosed, comprising asymmetrically hydrogenating a 4-phenyl-2-halogeno-3-oxobutyric ester (III) in the presence of a ruthenium-phosphine complex to obtain a 4-phenyl-(2S)-halogeno-(3R)-hydroxybutyric ester (IV), epoxidizing the ester (IV) in the presence of a base to obtain a 4-phenyl-(2S,3R)-epoxybutyric ester (V), reacting the ester (V) with a tri(lower alkyl)silylazide or a (lower alkyl)diarylsilylazide in the presence of a Lewis to obtain a (3S)-azido-4-phenyl-(2S)-trisubstituted silyloxybutyric ester (VI), hydrogenolyzing the ester (VI) into a (2S,3S)-allophenylnorstatin derivative (VII), protecting the amino group of the compound (VII), and, if desired, hydrolyzing the compound before or after the amino group protection. Compounds (I) can be obtained at high optical purity safely and in good yield.Type: GrantFiled: March 1, 1996Date of Patent: December 3, 1996Assignee: Takasago International CorporationInventors: Noboru Sayo, Tetsuro Yamasaki, Hidenori Kumobayashi, Yoshifumi Yuasa, Tsukasa Sotoguchi
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Patent number: 5569731Abstract: N,N' disubstituted perylene diamide, useful in the fabrication of semiconductor devices, which exhibit good planarity and gap-fill characteristics, the cured composites of which are capable of withstanding temperatures in excess of 500.degree. C.Type: GrantFiled: June 7, 1995Date of Patent: October 29, 1996Inventors: Harold G. Linde, Rosemary A. Previti-Kelly, Thomas J. Reen
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Patent number: 5563231Abstract: This invention relates to water-dispersible compounds that are useful as lubricants for textile wet processing having formula (I): ##STR1## wherein R is C.sub.1 -C.sub.10 alkylene;R.sup.1 is an m-functional group having the formula ##STR2## R.sup.2 and R.sup.3 are independently C.sub.1 -C.sub.10 alkyl or groups having the formula ##STR3## R.sup.4 is hydrogen, acyl, or trialkylsilyl; R.sup.5 and R.sup.6 are independently alkyl, alkoxy, --Z--(O--B).sub.s --OR.sup.4, or --Y--(O--A).sub.r --;R.sup.7 and R.sup.8 are independently alkyl, alkoxy, or --Z--(O--B).sub.s --OR.sup.4 ;X is hydrogen, (cyclo)alkyl, (cyclo)alkenyl, --NR.sup.c R.sup.d, --NR.sup.c R.sup.d R.sup.e+ Q.sup.-, --OR.sup.f, --SR.sup.g, --NH--CO--NH--R.sup.h, --O--CO--NH--R.sup.i, --NH--CO--O--R.sup.j, --CN, or halogen;A and B are independently alkylene;Y and Z are independently a direct bond or alkylene;m is from 1 to 20;r and s are independently from 0 to 20; andn and p are from 0 to 100 and the total (n+p) is from 10 to 100.Type: GrantFiled: June 6, 1995Date of Patent: October 8, 1996Assignee: Bayer CorporationInventors: Lloyd Barringer, Jr., Thomas P. Bellina, Brad A. Ziegler
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Patent number: 5559140Abstract: This invention relates to novel difluoro statone analogs, to the processes and intermediates useful for their preparation and to their use as anti-viral agents.Type: GrantFiled: June 30, 1993Date of Patent: September 24, 1996Assignee: Merrell Pharmaceuticals Inc.Inventors: Daniel Schirlin, Viviane Van Dorsselaer, Celine Tarnus
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Patent number: 5554779Abstract: This invention provides an organosilicon compound represented by the following general formula (1): ##STR1## wherein R.sup.1 are independently a hydrogen atom or an unsubstituted or substituted monovalent hydrocarbon group such as methyl, phenyl, 3,3,3-trifluoropropyl and 6,6,6,5,5,4,4,3,3-nonafluorohexyl groups, R.sup.2 are independently an alkylene group such as ethylene and propylene groups, Rf is a perfluoroalkylene group, such as --C.sub.4 F.sub.8 -- and --C.sub.6 F.sub.12 --, or a divalent perfluoropolyether group, such as a group having the formula: ##STR2## wherein m and n are each an integer such that m+n is 2 to 200, and Z is a group having the general formula: ##STR3## wherein R.sup.3 are independently the same unsubstituted or substituted monovalent hydrocarbon group as the group R.sup.1, and a is an integer of 2 to 4. This compound is useful as a crosslinking agent which is used when curing an unsaturated group-containing polymer by hydrosilylation reaction.Type: GrantFiled: November 13, 1995Date of Patent: September 10, 1996Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Shinichi Sato, Noriyuki Koike
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Patent number: 5552485Abstract: Fluoroaluminosilicate dental cement glasses are treated with an aqueous silanol treating solution and optionally with an additional organic compound. The treated glasses form cements with improved strength. The silanol can be ethylenically-unsaturated and can contain acidic groups, and, if so, is novel in its own right.Type: GrantFiled: June 2, 1995Date of Patent: September 3, 1996Assignee: Minnesota Mining and Manufacturing CompanyInventors: Sumita B. Mitra, Scott R. Culler, Bing Wang
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Patent number: 5550272Abstract: A method for silating unsaturated monomers by contacting a system having at least one SiH group, an unsaturated monomer, a transition metal catalyst and a free radical polymerization inhibitor is described.Type: GrantFiled: October 2, 1995Date of Patent: August 27, 1996Assignee: General Electric CompanyInventors: Larry N. Lewis, Terrell W. Carothers
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Patent number: 5545630Abstract: Compounds of the formula ##STR1## wherein R.sub.1 is C.sub.3 -C.sub.8 cycloalkyl, halo-C.sub.3 -C.sub.8 cycloalkyl, C.sub.3 -C.sub.8 cycloalkyl-C.sub.1 -C.sub.6 alkyl, halo-C.sub.3 -C.sub.8 cycloalkyl-C.sub.1 -C.sub.6 alkyl, --Si(R.sub.3).sub.3, --S--R.sub.4, --SO.sub.2 --R.sub.6 or --CO--R.sub.9 ;R.sub.2 is halogen, C.sub.1 -C.sub.4 alkyl or CF.sub.3, the substituents R.sub.2 being identical or different when n is 2;R.sub.3 each independently of the others is C.sub.1 -C.sub.6 alkyl, halo-C.sub.1 -C.sub.6 alkyl, C.sub.1 -C.sub.6 alkoxy or phenyl;R.sub.4 is aryl or heteroaryl each of which is unsubstituted or substituted;R.sub.6 is unsubstituted or substituted C.sub.1 -C.sub.10 alkyl, C.sub.2 -C.sub.6 alkenyl, C.sub.2 -C.sub.6 alkynyl, C.sub.1 -C.sub.20 alkoxy, C.sub.2 -C.sub.6 alkenyloxy, C.sub.2 -C.sub.6 alkynyloxy, C.sub.1 -C.sub.4 alkylthio, aryl, aryloxy or arylthio, or is optionally substituted amino;R.sub.9 is hydroxy, unsubstituted or substituted C.sub.1 -C.sub.10 alkyl, C.sub.2 -C.sub.6 alkenyl, C.Type: GrantFiled: June 5, 1995Date of Patent: August 13, 1996Assignee: Ciba-Geigy CorporationInventors: Peter Maienfisch, Manfred B oger, Thomas Pitterna, Henry Szczepanski
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Patent number: 5543571Abstract: A process for the asymmetric hydrogenation of N-acylhydrazones to optically active N-acylhydrazines in the presence of a chiral phospholane catalyst complex, a process for the reductive N--N bond cleavage of N-acylhydrazine to amines with samarium diiodide, and a multistep process for converting keto group-bearing compounds to the corresponding optically active amino group-bearing compounds are disclosed.Type: GrantFiled: March 7, 1995Date of Patent: August 6, 1996Assignee: E. I. Du Pont de Nemours and CompanyInventor: Mark J. Burk
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Patent number: 5536861Abstract: Antimicrobial quaternary ammonium group-containing organosilicon polymers, aqueous disinfectant solutions containing such polymers, and lenses produced from such polymers are provided herein.Type: GrantFiled: July 5, 1994Date of Patent: July 16, 1996Assignee: Ciba-Geigy CorporationInventor: J. Richard Robertson
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Patent number: 5527931Abstract: The present invention relates to organosilane compounds used for treating porous substrates to render them repellent to water-based and oil-based challenges and to enhance the cleanibility of the protected surfaces from such challenges.Type: GrantFiled: June 27, 1994Date of Patent: June 18, 1996Assignee: Minnesota Mining and Manufacturing CompanyInventors: Larry D. Rich, James F. Sanders
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Patent number: 5510442Abstract: Organosilicon-containing materials are useful in articles such as biomedical devices, including contact lenses. The materials include macromonomers endcapped with at least one ethylenically unsaturated radical, and monomers. The macromonomers and monomers include units of the formula: ##STR1## wherein: each Y is --O-- or --NR.sup.30 -- wherein R.sup.30 is H or C.sub.1 -C.sub.6 alkyl;each R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 is independently selected from the group consisting of H, C.sub.1 -C.sub.6 alkyl, C.sub.1 -C.sub.6 haloalkyl, C.sub.2 -C.sub.6 alkyl wherein at least one methylene group is replaced with --O--, C.sub.2 -C.sub.6 haloalkyl wherein at least one methylene group is replaced with --O--, and --R.sup.Si ;m and n are independently 0 or an integer of 1 to 6;each R.sup.Si is independently an organosilicon radical; andR is the divalent residue of an .alpha., .omega.-dihydroxyl compound or an .alpha., .omega.-diamino compound.Type: GrantFiled: May 11, 1995Date of Patent: April 23, 1996Assignee: Bausch & Lomb IncorporatedInventors: Ronald E. Bambury, Jay F. Kunzler
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Patent number: 5508427Abstract: A bisimide compound of the following general formula (I). ##STR1## (wherein each of the R's is an alkyl group having 1 to 4 carbon atoms, a phenyl group or a phenyl group substituted with an alkyl or alkoxy group having 1 to 4 carbon atoms, a plurality of these R's may be the same or different, each of the Z's is ##STR2## a plurality of these Z's may be the same or different, Y is an arylene group or an aryleneoxy group whose terminal oxygen atom bonds to (CH.sub.2).sub.n, n is an integer of 0 to 20, and m is an integer of 1 to 30.), and a process for the production of the above bisimide compound, which comprises reacting a bisamic acid corresponding to this bisimide compound in a cyclodehydration reaction.Type: GrantFiled: April 6, 1994Date of Patent: April 16, 1996Assignee: Tomoegawa Paper Co., Ltd.Inventors: Toshio Tagami, Yukinori Sakumoto, Takeshi Hashimoto
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Patent number: 5475124Abstract: A composition which is curable to an elastomer comprising:A polymer or mixture of polymers of the formula ##STR1## A composition which is curable to a pressure sensitive adhesive comprising the above polymer and a sufficient amount of tackifier. The invention also relates to fluorosilane compounds useful in the preparation of silicone macromonomer, their preparation and the preparation of silicone macromonomer.Type: GrantFiled: May 20, 1994Date of Patent: December 12, 1995Assignee: Minnesota Mining and Manufacturing CompanyInventors: Mieczyslaw H. Mazurek, Steven S. Kantner, Charles M. Leir, Audrey A. Sherman
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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: 5446180Abstract: Novel 1-aza-3-oxa-4-silacyclohex-1-ene compounds, and tautomers thereof, having utility as chemical modifiers or cross linkers for hydroxy-containing organic or inorganic substances are disclosed, said compounds being represented by the general formula (I) ##STR1## wherein R.sup.1 and R.sup.2 each independently denotes a monovalent organic group having 1 to 6 carbon atoms selected from the group consisting of saturated hydrocarbon groups and unsaturated hydrocarbon groups, R.sup.3 deontes an organic group having 1 to 30 carbon atoms selected from the group consisting of saturated hydrocarbon groups and unsaturated hydrocarbon groups, said R.sup.3 groups optionally containing a heteroatom selected from the group consisting of oxygen, nitrogen, sulfur, silicon, fluorine, chlorine, bromine and iodine, Me denotes a methyl radical and n is an integer having a value of 1 to 4.Type: GrantFiled: December 16, 1994Date of Patent: August 29, 1995Assignee: Dow Corning Asia Ltd.Inventor: Mamoru Tachikawa
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Patent number: 5426204Abstract: A novel coating for glass with an adhesive strength of >45 Kg/cm.sup.2 and improved resistance to moisture and sunlight, which may contain opacifying pigments for decorating glass surfaces, is a hard (Shore D 84), crosslinked siloxane-urea, siloxane-urethane, siloxane-sulfide or siloxane-amide which adheres covalently to the glass surface and is resistant to scratching and delamination.Type: GrantFiled: September 12, 1994Date of Patent: June 20, 1995Assignee: Ciba-Geigy CorporationInventors: Paul Harisiades, Kirtland P. Clark
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Patent number: 5426223Abstract: A process for the asymmetric hydrogenation of N-acylhydrazones to optically active N-acylhydrazines in the presence of a chiral phospholane catalyst complex, a process for the reductive N--N bond cleavage of N-acylhydrazine to amines with samarium diiodide, and a multistep process for converting keto group-bearing compounds to the corresponding optically active amino group-bearing compounds are disclosed.Type: GrantFiled: July 30, 1993Date of Patent: June 20, 1995Assignee: E. I. Du Pont de Nemours and CompanyInventor: Mark J. Burk
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Patent number: 5420324Abstract: Fumaramide-containing monomers are disclosed which are especially useful in the preparation of biocompatible devices, especially contact lenses.Type: GrantFiled: August 24, 1994Date of Patent: May 30, 1995Assignee: Bausch & Lomb IncorporatedInventors: Yu-Chin Lai, Ronald E. Bambury
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Patent number: 5399737Abstract: Novel quaternary ammonium siloxane compounds and methods for their use are disclosed.Type: GrantFiled: April 4, 1994Date of Patent: March 21, 1995Assignee: Alcon Laboratories, Inc.Inventors: Joonsup Park, Joseph J. Falcetta
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Patent number: 5389619Abstract: Compounds of the formula I ##STR1## where n, W, X, Y, Z, R.sup.1, R.sup.2, and R.sup.3 are as defined herein exhibit fungicidal, insecticidal, and acaracidal activity.Type: GrantFiled: March 29, 1993Date of Patent: February 14, 1995Assignee: BASF AktiengesellschaftInventors: Reinhard Doetzer, Hubert Sauter, Horst Wingert, Reinhard Kirstgen, Albrecht Harreus, Gisela Lorenz, Eberhard Ammermann
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Patent number: 5384342Abstract: The present invention is directed to a compound of the Formula:R.sub.1 --R.sub.2 --R.sub.3 --R.sub.4 --A--(R.sub.5).sub.n (R.sub.6).sub.3-nwherein: A is Si or Ti; R.sub.1 is an alkenoxy, acryloxy or ethylenically unsaturated dicarboxylate group; R.sub.2 is a 2 to 18 carbon linear, branched or cyclo alkyl, alkenyl, alkynyl, acyl, aryl or poly(alkoxy) group; R.sub.3 contains a urethane, urea, or thiourethane linkage; R.sub.4 is a 2 to 18 carbon linear, branched, or cyclic alkyl, alkenyl, alkynyl, aryl or acyl non-hydrolyzable silyl linking group; R.sub.5 is a 2 to 18 carbon linear, branched, or cyclic alkyl, alkenyl, alkynyl, aryl or acyl group; R.sub.6 is any hydrolyzable silyl linking group (alkoxy, alkenoxy, or halogen); and n is 0 to 2.The present invention is further directed to an improved method of using of a compound of the above Formula as an adhesion promoter in a UV-curable composition for a surface with a free nucleophilic group. Preferably, that surface is glass.Type: GrantFiled: August 30, 1993Date of Patent: January 24, 1995Assignee: DSM Desotech, Inc.Inventor: David M. Szum
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Patent number: 5380811Abstract: A room temperature curable fluorine-containing organopolysiloxane composition comprising:(A) a fluorine-containing organosilicon compound having the general formula (1):R.sup.2 --NHCO--[Rf--CONH--R.sup.1 --Q--R.sup.1 --NHCO].sub.a --Rf--CONH--R.sup.2 (1)wherein a is an integer of 0 or more, Rf is a divalent perfluoroalkylene group or a divalent perfluoropolyether group, R.sup.1 is a divalent hydrocarbon group, R.sup.2 is a monovalent aliphatic unsaturated group-containing hydrocarbon group, and Q is a divalent siloxane group(B) a hydrogenorganopolysiloxane containing at least two Si--H groups in its molecule, and(C) a platinum family metal catalyst. The cured product of this composition exhibits good solvent resistance against non-polar solvents as well as polar solvents, in addition to good chemical resistance, heat resistance, release properties and water repellency.Type: GrantFiled: June 2, 1993Date of Patent: January 10, 1995Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Hirofumi Kishita, Shinichi Sato, Noriyuki Koike, Takashi Matsuda
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Patent number: 5374755Abstract: Novel carbamate compounds, novel silylcarbamate compounds and novel reversed phase materials comprising a silica substrate modified with a modified novel silylcarbamate compound are disclosed which may, for example, be used as stationary phases for liquid chromatography applications. Attached to the carbamate group are several reversed or normal phase producing groups such as cyanoalkyl, tertiary butyl, dibutyl, octyl, dodecyl, tetradecyl, octadecyl or benzyl. The new stationary phases may be endcapped with a short chain alkyl silane. One particular advantage of these stationary phases is decreased interaction with basic samples due to shielding of the unreacted silanol groups on the silica surface. The new phases are particularly useful in the chromatographic analysis of basic samples or more generally for samples having an undesirable interaction with the unmodified silanols.Type: GrantFiled: July 17, 1992Date of Patent: December 20, 1994Assignee: Millipore CorporationInventors: Uwe D. Neue, Carsten L. Niederlaender, John S. Petersen
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Patent number: 5371261Abstract: Fully alkoxysilane-functionalized aliphatic polyamine compounds (e.g., fully functionalized dialkylenetriamine compounds) can be formed by reacting a dialkylenetriamine (e.g., diethylenetriamine) with a compound comprising an amine-reactive group and an alkoxysilane group (e.g., an isocyanatoalkylalkoxysilane). These functionalized compounds find utility as the predominant component in forming organic/inorganic hybrid materials via sol-gel processing.Type: GrantFiled: May 12, 1993Date of Patent: December 6, 1994Assignee: Virginia Tech Intellectual Properties, Inc.Inventors: Bing Wang, Garth L. Wilkes
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Patent number: 5354881Abstract: New organic silanes are claimed carrying at least one water-solubilizing moiety and at least one hydrophobic group suitable for preparing stable solutions or dispersions containing in excess of about five weight percent of such silanes.Type: GrantFiled: October 15, 1991Date of Patent: October 11, 1994Assignee: PPG Industries, Inc.Inventors: Wen-Hsuan Chang, John F. Grunewalder, Mark A. Harley, Edward E. McEntire
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Patent number: 5352817Abstract: A cationic silicone compound which can be employed in a variety of environments, such as a fiber lubricant, textile fabric softener, hair conditioner, and skin conditioner is formed from an aminosilicone compound which has the following Formula (I): ##STR1## wherein a, b, and c are 0-300; d is 0-4, preferably 1 or 2;R.sub.1 comprises hydrogen, an alkyl, aryl, alkynyl, alkenyl, oxyalkylene group which may be unsubstituted or substituted with P,N, or S moieties;R.sub.2 is defined the same as R.sub.1 and can also be a carboxylic acid residue preferably a fatty acid residues, with the proviso that where R.sub.2 is a carboxylic acid residue, the R.sub.1 attached to the terminal N is hydrogen;R.sub.3 is defined the same as R.sub.2 and can also be alkoxy, aryloxy or alkyloxyalkylene groups;R.sub.4 is defined the same as R.sub.3 and can also be an amino-substituted alkyl group;Z.sub.1 and Z.sub.Type: GrantFiled: November 16, 1992Date of Patent: October 4, 1994Assignee: Karlshamns ABInventors: James P. McCarthy, George H. Greene, Anthony G. DeWar
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Patent number: 5336797Abstract: Siloxane macromonomers are disclosed which can be copolymerized with hydrophilic monomers or hydrophobic monomers to prepare polymeric materials useful as biomedical devices. The copolymers made from hydrophilic monomers exhibit good oxygen permeability and are particularly suitable for use in contact lenses.Type: GrantFiled: December 30, 1992Date of Patent: August 9, 1994Assignee: Bausch & Lomb IncorporatedInventors: Joseph A. McGee, Paul L. Valint, Jr.
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Patent number: 5306837Abstract: Novel intermediates useful in the preparation of the optically active antiviral compound [1R-(1.alpha.,2.beta.,3.alpha.)]-2-amino-9-[2,3-bis(hydroxymethyl)cyclobut yl]-1,9-dihydro-6H-purin-6-one are described.Type: GrantFiled: July 15, 1993Date of Patent: April 26, 1994Assignee: E. R. Squibb & Sons, Inc.Inventors: Gregory S. Bisacchi, Toomas Mitt
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Patent number: 5302735Abstract: Polysiloxanic compounds, containing sterically hindered phenol groups and oxamidic groups in the molecule, obtained by the copolymerization of monomers having general formula (I):(R.sup.1).sub.n (R.sup.2).sub.3-n Si--R.sup.Type: GrantFiled: April 21, 1993Date of Patent: April 12, 1994Assignee: Enichem Synthesis S.p.A.Inventors: Carlo Neri, Daniele Fabbri, Luciano Pallini
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Patent number: 5300613Abstract: Fluorine-containing organosilicon compounds having the following general formula:CH.sub.2 .dbd.CHCH.sub.2 NHCO--[Rf--CONH(CH.sub.2).sub.3 --Q--(CH.sub.2).sub.3 NHCO].sub.a --Rf--CONHCH.sub.2 CH .dbd.CH.sub.2wherein a is an integer of 1 or above, Rf is a divalent perfluoropolyether group, and Rf is a divalent cyclosiloxane group containing an unsubstituted or substituted monovalent hydrocarbon group without an aliphatically unsaturated bond. The compounds are of use as a starting material in synthesizing rubbers or mold release agents which are high in such properties as solvent resistance, chemical resistance and the like.Type: GrantFiled: June 1, 1993Date of Patent: April 5, 1994Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Hirofumi Kishita, Shinichi Sato, Takashi Matsuda
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Patent number: 5288889Abstract: A fluorinated organic silicon compound of a structure having a fluorinated polyether group in its backbone and an isopropenoxysilyl group attached at either end forms a compliant coating on the surface of any substrate such as silicone rubber which is effective in imparting water and oil repellency and stain resistance to silicone rubber surface.Type: GrantFiled: May 13, 1993Date of Patent: February 22, 1994Assignee: Shin-Etsu Chemical Co.Inventors: Toshio Takago, Shinichi Sato, Hitoshi Kinami, Noriyuki Koike
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Patent number: 5286830Abstract: The present invention relates to a series of novel amido silicone functional taurine derivatives, useful in softening hair, and fiber and conditioning skin. The compounds of the present invention are prepared by the reaction of a carboxy silicone with a taurine derivative to produce novel surface active materials useful in personal care applications like soap bars.Type: GrantFiled: April 22, 1993Date of Patent: February 15, 1994Assignees: Siltech Inc., Phoenix ChemicalInventors: John Imperante, Anthony J. O'Lenick, Jr.
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Patent number: 5268442Abstract: Chiral copolymers containing chiral molecular grooves or cavities and oligosiloxane spacers are disclosed. The chiral portion of the copolymer is an enantiomerically enriched organic grouping, having physical properties attributed to uniform and stereochemically possible molecular grooves or cavities, which is chemically and thermally stable to gas, liquid or supercritical s fluid chromatographic conditions and is configured such that one enantiomer of an enantiomeric mixture will be better able to preferentially enter such groove or cavity and interact more strongly than other enantiomers in said mixture.Type: GrantFiled: May 4, 1992Date of Patent: December 7, 1993Assignee: Brigham Young UniversityInventors: Jerald S. Bradshaw, Bryant E. Rossiter, Bryon J. Tarbet, Deborah F. Johnson, Milton L. Lee, Karin E. Markides
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Patent number: RE34805Abstract: A benzonaphthalene compound has the formula ##STR1## wherein R.sub.1 represents ##STR2## or (ii) --CH.sub.2 OH; R.sub.6 represents ##STR3## or OR.sub.7 wherein R.sub.7 represents hydrogen, alkyl having 1-20 carbon atoms, monohydroxyalkyl or polyhydroxyalkyl, r' or r" represent hydrogen, lower alkyl, mono or polyhydroxyalkyl, aryl or a residue of an amino acid or a sugar, or together form a heterocycle; R.sub.2 represents hydrogen, alkyl having 1-15 carbon atoms, alkoxy having 1-4 carbon atoms or a cycloaliphatic radical; R.sub.3 represents hydrogen, hydroxy, alkyl having 1-4 carbon atoms, alkoxy having 1-10 carbon atoms, a cycloaliphatic radical, a thiocycloaliphatic radical or --O--Si(CH.sub.3).sub.2 --R.sub.8 wherein R.sub.8 represents lower alkyl; and R.sub.4 and R.sub.5 represent hydrogen, lower alkyl, hydroxy or lower acyloxy.This compound is useful in the topical and systemic treatment of dermatologic diseases and in the treatment of the degeneration of conjunctive tissues.Type: GrantFiled: July 10, 1992Date of Patent: December 6, 1994Assignee: Centre International de Recherches Dermatologiques (CIRD)Inventors: Braham Shroot, Jacques Eustache, Jean-Michel Bernardon