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4925907 |
Vinylidene fluoride-acrylic acid ester copolymer, process for producing the same and composition containing the same
A substantially random, linear vinylidene fluoride-acrylic acid ester copolymer comprising: (A) 5-85% by weight of a vinylidene fluoride unit, (B) 15-95% by weight of at least one unit...
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4923945 |
Resin composition curable at low temperature
Disclosed is a resin composition curable at a low temperature and characterized in that the composition comprises: (a) at least one of a copolymer comprising as its monomer components an...
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4923906 |
Rigid, gas-permeable polysiloxane contact lenses
New polysiloxane contact lenses are described which are prepared from polysiloxanes bearing at least three polymerizable vinyl groups by copolymerization with acrylic comonomers. The new lens...
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4916038 |
Substituted aromatic silane compounds and method for preparation of same
A new group of silane compounds in which silicon atoms are linked together by a hydrocarbon chain and which comprise phenyl groups substituted with an epoxy group or an ethenyl group. The compounds...
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4911986 |
Curable silicone compositions comprising vinyl monomer
Curable organosilicon compounds which contain (meth)acryl-amido-substituted hydrocarbon radicals have their viscosities greatly reduced by the addition of a small amount of a vinyl monomer...
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4910252 |
Siloxane polymer antifouling paint composition containing polysiloxanes
An antifouling paint composition comprising as a film-forming component a vinyl-type copolymer obtained by copolymerization of (A) 1 to 50% by weight of a specific polymerizable unsaturated...
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4910232 |
Ultraviolet-curable organopolysiloxane composition
The ultraviolet-curable organoploysiloxane composition of the invention comprises (A) an organopolysiloxane having bonded to a silicon atom thereof a silyl-substituted ethyl group represented by...
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4910278 |
Monomeric composition and polymer therefrom
Rubber vulcanizates having excellent oil resistance, heat resistance and cold resistance can be obtained from a rubbery copolymer which is a polymerization product of an acrylic monomer mixture of...
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4902763 |
Process for the polymerization tri-substituted silylalkynes
Polymeric trisubstituted silylalkynes useful for forming gas separation membranes are prepared at accelerated polymerization rates and with improved yields in the presence of a Group VV or VIB...
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4900773 |
Joint filler
This invention relates to a joint filler. More particularly, this invention relates to a composition useful as a joint filler which comprises (a) an aqueous dispersion of a polymerization product...
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4898895 |
Antifouling pain having a polyacrylate component with pendent silyl or siloxane groups
An antifouling paint is described, that contains as its essential components an antifoulant and a polymer of one or more of the monomers A represented by general formula (1) and/or copolymer...
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4889768 |
Novel silicon-urethane (meth) acrylate, and resin composition and coating material comprising same
A silicon-urethane (meth) acrylate which is a reaction product of an isocyanato-alkylsilane compound represented by the following general formula: ##STR1## wherein R 1 represents an alkylene group...
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4889901 |
Ultraviolet-curable blends of acrylated polyurethanes and silsesquioxane oligomers having improved adhesion to glass
A light-curable ethylenically unsaturated liquid coating composition which cures to provide low modulus coatings adapted for the primary or single coat coating of optical glass fiber and having...
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4889876 |
Composite substance and a method for the production of the same
A composite substance made of conjugated polymers that contain an inorganic moiety and an organic moiety in their molecule is provided. The conjugated polymers are produced from metal alkoxides and...
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4888406 |
Polymerizable monomer containing silicons and preparation thereof
A novel class of polymerizable monomers containing silicons represented by the formula: ##STR1## wherein R 1 represents a substituted or unsubstituted monovalent hydrocarbon residue; R 2 ...
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4888392 |
Copolymer of sulfur dioxide and polyalkylpolysilylstyrene
A copolymer of sulfur dioxide and polyalkylpolysilylstyrene composed of repeating units of formula I: ##STR1## where R is a lower alkyl group, p is an integer between 2 and 5, q in an integer...
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4886864 |
Silymethylene methacrylate contact lens and polymer
Silymethylene methacrylate polymers and optical contact lenses fabricated therefrom are disclosed.
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4886862 |
Resin composition
An ordinary temperature-curable resin composition comprising (A) a hydrolyzable silyl group-containing fluoroolefin copolymer obtained by polymerizing a monomeric mixture comprising a fluoroolefin...
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4883852 |
Antifouling coating
An antifouling coating is described, that contains as its essential components a polymer of one or more of the monomers A represented by formula (1) and/or a copolymer composed of one or more of...
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4868260 |
Hard contact lens material consisting of alkyl fumarate and silicon-alkyl fumarate copolymers
A hard contact lens material comprising a copolymer made of at least two kinds of fumaric acid diester at least one of which is a dialkyl fumarate as main components. The hard contact lens material...
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4866149 |
Process for catalytic treatment of a polysilazane containing on average at least two hydrocarbon groups having aliphatic unsaturation per molecule
A process for treating a polysilazane, characterized in that a polysilazane possessing on average at least two, and preferably at least three, hydrocarbon groups having aliphatic unsaturation per...
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4866153 |
Cyclic silethynyl polymers and a method for making them
Cyclic silethynyl polymers, having at least 4 silicon atoms per polymer, have the average formula ##STR1## Preferably x has a value of 5 or 6, and each R is independently methyl or phenyl. They are...
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4866147 |
Soluble silylated polyacetylene derivatives and their use as percursors to novel polyacetylene-type polymers
Polymerization of acetylenic monomers is achieved by using a catalyst which is the reaction product of a tungsten compound and a reducing agent effective to reduce W(VI) to W(III and/or IV), e.g.,...
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4861840 |
Novel siloxanyl acrylic monomer and gas-permeable contact lenses made therefrom
Disclosed are a novel monomer, and oxygen-permeable copolymers made therefrom, as well as contact lenses made from said copolymers, wherein the novel monomer has the formula: ##STR1##
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4853438 |
Water-soluble polymers bearing quaternary ammonium or pyridinium groups and alkoxysilyl groups, a method for their preparation, and the use thereof
Disclosed are new copolymers which are useful as adhesion mediating agents. The copolymers of the invention are prepared by the copolymerization of vinyl silanes, vinyl esters of alpha-halogen...
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4847344 |
Heat-resistant maleimido copolymers
Novel heat-resistant maleimido polymers, well adopted for the production of molded/laminated shaped articles, are copolymerizates of (a) a hydrocarbyl N,N'-bis(maleimide); (b) a diamine containing...
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4843136 |
(Meth)-acrylates of siloxanes containing tricyclodecane groups
New (meth)-acrylates of siloxanes containing tricyclodecane groups having the formula ##STR1## are prepared by reacting poly(hydroxymethyl-tricyclo [5.2.1.0 2 .6 ]decanyl)siloxanes, or the alkylene...
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4839109 |
Process for producing a contact lens
A mixture of a specified siloxanylalkyl ester monomer and a specified vinyl monomer is polymerized by exposure to an ionizing radiation at low temperatures and the resulting polymer is worked with...
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4837386 |
Method of treating membranes with ultraviolet radiation
The present invention is a process for enhancing the permselectivity of a polymeric membrane containing substituted acetylene monomer units without adversely affecting the mechanical properties of...
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4837289 |
UV- and heat curable terminal polyvinyl functional macromers and polymers thereof
New polysiloxanes are described which bear at least three vinyl groups. Such polyvinyl polysiloxanes are useful as heat or UV curing resins with high cross link density and are especially useful as...
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4835229 |
Catalyst and process for the preparation of tri-substituted silylalkynes
Polymeric tri-substituted silylalkynes useful for forming gas separation membranes are prepared at accelerated polymerization rates and increased molecular weights by employing at polymerization...
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4835297 |
Method of preparing sulfenic acid chlorides and sulfenic acid esters
The invention is directed to a method of preparing sulfenic acid chlorides and sulfenic acid esters with hydrolyzable silyl groups in which an oligosulfane containing silyl groups is chlorinated,...
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4829137 |
Continuous-wear highly oxygen permeable contact lenses
There are provided continuous-wear lenses formed by polymerizing a hexafluoroisopropyl ester of an unsaturated carboxylic acid which can have an oygen permeability in excess of at least 150×10 -11...
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4829138 |
Novel heat-stable siloxane/bismaleimido polymers
Novel heat-stable imido polymers, well adapted for the production of a wide variety of useful shaped articles, comprise the coplymerizate of (a) at least one diorganopolysiloxylated...
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4829130 |
Silylated derivatives of isobutene crosslinkable under ambient conditions, and process for preparing them
Isobutene is copolymerized with an unsaturated comonomer containing the chlorosilanic function, and the chlorosilanic function is subsequently transformed into an alkoxysilanic function by means of...
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4826936 |
Silicone-containing contact lens material and contact lenses made thereof
According to the invention contact lenses are formed of unsaturated, multifunctional, organosiloxanes alone or mixed with monofunctional organosilanes and in some cases a hardening agent such as...
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4824922 |
Acrylic silicate compositions and methods and highly oxygen-permeable polyacrylates made therefrom
A polymer derived from a new composition of matter comprising an acrylic silicate of the type having the general formula: ##STR1## wherein R=alkyl, aryl or H, R'=R or OR Y=alkyl, vinyl, aryl,...
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4822864 |
Gas permeable contact lens and method and materials for its manufacture
A polymer is prepared by forming a mixture of 3-methacryloxypropytris(trimethylsiloxy) silane, methacrylic acid, cyclohexylmethacrylate, 2-hydroxypropylmethacrylate,...
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4820607 |
Photosolubilizable composition
A photosolubilizable composition containing (a) a first compound capable of producing an acid by irradiation with actinic rays and (b) a high molecular weight compound, whose solubility in a...
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4814402 |
Contact lens material
A contact lens material composed of a copolymer of a monomer mixture comprising, as essential monomers, from 5 to 20 parts by weight, based on 100 parts by weight of the total monomer mixture, of a...
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4812542 |
Copolymers having o-nitrocarbinol ester groups and preparation thereof
Copolymers containing from 5 to 50 mol % of monomers having o-nitrocarbinol ester groups, from 95 to 50 mol % of O-substituted p-hydroxystyrene and from 0 to 30 mol % of other copolymerizable...
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4810767 |
Curable copolymer and process for preparation thereof
A curable copolymer having a number average molecular weight of 1,000 to 100,000, and having the formula (1): ##STR1## and a process for the preparation of the curable copolymer (1). The curable...
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4810766 |
Acryloxyorganosiloxane polymer
Disclosed are an acryloxyorganosiloxane polymer having a structural unit represented by the formula (1): ##STR1## wherein X 1 is chlorine atom or fluorine atom, X 2 and X 3 are the same or...
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4808679 |
Process for controlling the molecular weight of poly(trialkylsilylpropyne) polymers
The present invention is a process for polymerizing trialkylsilylacetylene derived monomers to form the corresponding poly(trialkylsilylacetylene) polymer. The polymerization reaction is carried...
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4806605 |
Monomers and initiators for group transfer polymerization
A Group Transfer Polymerization process comprising contacting under polymerizing conditions at least one acrylic monomer with (i) a tetracoordinate organosilicon, organotin or organogermanium...
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4806575 |
Prevention of outgassing in polyvinylsiloxane elastomers by the use of finely divided platinum black
A polyvinylsiloxane catalyst paste which comprises up to 20,000 ppm of finely divided platinum black which functions to adsorb hydrogen gas generated in the reaction of said catalyst paste with a...
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4806608 |
Curable siloxane maleimide composition
Bis-maleimide compounds of the formula: ##STR1## where R' is an alkenylene or alkylene group; the R" groups are independently hydrocarbon or halohydrocarbon groups; and n is an integer, are...
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4795786 |
Polymer composition
A crosslinkable composition comprising (A) a copolymer of ethylene and an unsaturated silane compound having hydrolyzable group(s) optionally with other comonomers and (B) a defined dihydrocarbyl...
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4791176 |
Alkenylphenol and alkenylphenol ether copolymers
The invention relates to new copolymers of alkenyl phenol or alkenyl phenol ether in combination with alkenyl silanes. These copolymers are useful positive photoresists.
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4791171 |
Silylated poly(vinyl)phenol polymers
Novel partially silylated polyvinylphenol polymers of the Formula (I) are disclosed: ##STR1## wherein X is H or CH 3 ; R is --OH or ##STR2## wherein R 1 is --O or --O(CH 2 ) n , n is 1 to 4, and...
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