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4783514 |
Polymeric monoarylcyclobutane compositions
Polymeric compositions are comprised of, in polymerized form, a monomer which contains one reactive arylcyclobutane moiety.
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4780515 |
Continuous-wear lenses having improved physical properties
The physical properties of highly oxygen-permeable continuous-wear contact lenses, comprising a copolymer of an organosilicone monomer, a fluoroalkyl ester monomer and a hydrophilic monomer, are...
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4780516 |
Silylmethylene methacrylate contact lens and polymer
Silylmethylene metharcylate polymers and optical contact lenses fabricated therefrom are disclosed.
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4780510 |
Cross-linked optical siloxane polymer
A cross-linked optical siloxane polymer having a group for modifying a refractive index of the polymer which is introduced in a side chain of the polymer by a hydrosilyl reaction of one of the...
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4778868 |
Polymer and a membrane having an improved gas-permeability and selectivity
A permselective membrane having an improved gas-permeability and selectivity is obtained from a polymer of 1-alkyldimethylsilyl-1-propyne.
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4772672 |
Curable compositions and method of curing same
The present invention provides a curable composition characterized in that the composition comprises a copolymer comprising as monomer components an oxirane-containing vinyl monomer and a specific...
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4770968 |
Polysiloxane-styrene-butadiene terpolymers and use in toners
A branched polysiloxane styrene butadiene polymer of the following formula ##STR1## wherein m is a number of from about 2 to about 10; z is the number 3,4 or 5; n is a number of from about 10 to...
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4769431 |
Polyacryloxyalkylsilanol lens composition, articles and method of manufacture
A copolymer composition, especially suited for fabricating optical lenses comprising a copolymer of copolymerized comonomers which include in weight percent about one to about twenty percent by...
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4767824 |
Process for polymerizing acrylic monomers and possibly non-acrylic co-monomers
This invention relates to a process for polymerizing acrylic monomers and possibly non-acrylic co-monomers by means of polymerization-initiating agents of the formula: R--M ...
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4766189 |
Compositions for making improved gas permeable contact lenses
A novel plastic composition material for use in making a corneal contact lens comprising the reaction product of: (a) between about 20 and about 60% by weight of polymerizable silicate having...
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4760122 |
Cluster acrylic silicones having cyclic clusters
Novel polyorganosiloxane polymers having at least one terminal cyclic diorganosiloxane moiety containing a plurality of acrylic units of the formula ##STR1## wherein R 1 is H or lower alkyl; X is...
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4758640 |
Vinylsilyl group-containing monodisperse polymeric compound and a method for the preparation thereof
The invention provides a novel polymeric compound having crosslinkability by irradiation with actinic rays, e.g. ultraviolet light, and useful as a polymeric base ingredient of a negative type...
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4758643 |
Dental adhesive resin compositions
A dental adhesive resin compositions by copolymerization of unsaturated carboxylic acids with vinyl or allyl esters of unsaturated carboxylic acids in the coexistence of (meth)acrylate base...
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4748224 |
Silicone-sulfone and silicone-fluorocarbon-sulfone gas permeable contact lenses and compositions thereof
Highly oxygen permeable hard and semi-hard contact lenses are made from the copolymer of ethylenically unsaturated siloxane ester, ethylenically unsaturated fluorocarbon ester and ethylenically...
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4746702 |
Fluid organosiliconic composition and process for preparing it
An organosiliconic fluid composition, suitable for use in sealants, formed by a liquid phase and by a solid and insoluble polymeric phase, dispersed in said liquid phase, is obtained by...
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4743106 |
Highly oxygen permeable contact lens materials and compositions thereof
Highly oxygen permeable hard and semi-hard contact lenses are made from the copolymer of ethylenically unsaturated siloxanylalkoxy ester monomer, ethylenically unsaturated flurocarbon ester monomer...
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4743667 |
Contact lens material
The invention relates to novel multifunctional organosiloxane monomers which can be represented by the general formulas: ##STR1## wherein, at least one of "X 1 "-"X 7 " is a group of the...
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4742136 |
Optical plastic material
An optical plastic material which is a three-dimensional polymer comprising a structural unit of the following formula (1), (2), (3) or (4) is disclosed: ##STR1##
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4739021 |
Unsaturated silylated vinyl alcohol polymers
Unsaturated silylated vinyl alcohol polymers, derivatives thereof, and processes for their preparation.
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4737558 |
Siloxane copolymers for ophthalmic applications
A copolymer for preparation of optical lenses obtained from siloxane monomers having aromatic ring and vinyl functionality.
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4735998 |
Method for the preparation of a crosslinked organic polymer
A crosslinkable copolymer is prepared by the copolymerization of a first ethylenically unsaturated monomer and a second monomer substituted by a vinyl-containing cyclic organosilicon group such as...
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4731424 |
Process for producing polymer compound containing alkenylsilyl group
A process for producing an alkenylsilyl group-containing polymer compound, comprising polymerizing a vinyl monomer compound containing an alkenylsilyl group-containing styrene compound represented...
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4730031 |
Polymers of substituted 1,3-butadiene compounds having reactive silyl groups and process for their preparation
A polymer obtained by the polymerization of a substituted 1,3-butadiene compound of the formula: ##STR1## wherein each of X 1 and X 2 is hydrogen or SiR 1 R 2 R 3 , provided that at least one...
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4728709 |
Terminal cluster vinyl silicones and acrylate cluster silicones therefrom
A polyorganosiloxane polymer having a structure represented by one of the formulas (AB) m C or [(AB) m ] n SiR (4-n) where the R groups are the same or different organic groups other than...
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4726869 |
Adhesive and method of jointing articles of polyolefin using the same
An adhesive, suitable for joining cured polyolefin articles, comprising a water curable polyolefin having a melt index of from 0.1 to 20, and a method of joining cured polyolefin articles,...
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4725630 |
α, β-unsaturated carbonyl-functional silicone compositions
Polymerizable α, β-unsaturated carbonyl-functional silicone compositions are obtained from the reaction of thiol-functional organopolysiloxanes with an α, β-unsaturated carbonyl-functional...
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4724260 |
Unsaturated alkyl monoarylcyclobutane monomers
Monomeric compositions comprising a monomer containing one arylcyclobutane moiety, and a molecular group comprising at least one unsaturated alkyl group are provided.
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4715999 |
Process of making optical blanks
Optical blanks, for example spectacle lenses, are produced by hot-blank pressing or injection molding of polyorganoheterosiloxanes which are obtainable by hydrolytic polycondensation of at least...
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4716194 |
Removable pressure sensitive adhesive
The removability of acrylate based pressure sensitive adhesives is substantially improved by the addition thereto of a small amount of an organofunctional silane monomer.
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4711943 |
Hydrophilic siloxane monomers and dimers for contact lens materials, and contact lenses fabricated therefrom
A monomer for making a contact lens with improved oxygen permeability and stability is disclosed as having a first portion for increasing wettability and a second portion for increasing oxygen...
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4709066 |
Acrylic silicate compositions and methods and highly oxygen-permeable polyacrylates made therefrom
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, or fluoroalkyl...
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4704438 |
Novel styrene copolymer
A novel styrene copolymer having a functional group, i.e. silyl group on the para-position of the aromatic ring, useful as a functional polymer, is provided. An effective process for the production...
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4703082 |
Integral additives and methods for making filled thermoplastics
Novel methods are described for providing filled thermoplastic polymers by the integral addition, to the polymer/filler mixture, of a surfactant with or without a polymerizable unsaturated silicon...
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4703097 |
Optical contact objects
The optical contact objects contain a wettable, optionally crosslinked copolymer comprising the components N-vinylcarboxamide, (meth)acrylates of a polysiloxane and, optionally, vinyl monomers.
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4699802 |
Dual curing coating method for substrates with shadow areas
A method of curing a liquid silicone composition to a crosslinked polymer on a substrate having shadow areas no readily accessible to direct UV light, the method comprising: (a) applying a...
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4693935 |
Polysiloxane-grafted copolymer pressure sensitive adhesive composition and sheet materials coated therewith
This invention provides pressure sensitive adhesive (PSA) compositions comprising a copolymer having a vinyl polymeric backbone having grafted thereto polysiloxane moieties. The compositions may...
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4690993 |
p-(2-Hydroxy hexafluoroisopropyl) styrene [HFIS] monomer for ophthalmic applications
Copolymer compositions are prepared from a novel class of siloxane monomers in combination with hydroxyperfluoroalkylstyrenes, preferably p-(2-hydroxy hexafluoroisopropyl)sytrene [HFIS] monomer for...
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4689369 |
Silane-crosslinkable copolymer composition
A silane-crosslinkable copolymer composition comprising: (A) 100 parts by weight of a copolymer prepared by radically polymerizing a polymerizable monomeric mixture consisting essentially of...
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4689355 |
Crosslinked silane-functional vinylidene chloride polymer and films or foams therefrom
A polymeric composition is provided which includes the reaction product of vinylidene chloride, an optional copolymerizable monomer, and an α,β ethylenically unsaturated silane crosslinking...
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4687818 |
Polymer and pressure sensitive adhesive composition
A novel moisture-curable polymer useful as a pressure sensitive adhesive, a paint, a sealant, etc. obtained by polymerizing a polymerizable monomer in the presence of an organic polymer having at...
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4684670 |
Ultraviolet radiation-curable silicone release compositions
Novel UV-curable silicone release coating compositions and photocatalysts therefor are provided which include hydrogen-functional and vinyl-functional photoreactive terpolymers, which are...
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4677137 |
Supported photoinitiator
Supported initiators for the radiation-activated polymerization of cationically-polymerizable compounds, particularly epoxide group-containing compounds, are described. The supported initiators...
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4675346 |
UV curable silicone rubber compositions
Compositions of (a) a silicone resin characterized by an intermediate region free of acrylic groups, at least 150 siloxane units long, and terminal acrylic groups; (b) at least 10% of a fumed...
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4666953 |
Silicone polyphotoinitiators
Polyorganosiloxanes having an average of more than two siloxane repeat units, at least one of which repeat units includes a photoinitiating group bound to the silicon atom thereof, the...
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4667006 |
Poly(ethynylphenyl)acetylene, its copolymer and composition thereof
A linear polymer having a recurring unit represented by the formula (I): ##STR1## wherein R 1 , R 2 , R 3 and R 4 each independently is a hydrogen atom, a C 1 -10 alkyl group, a C 6 -10...
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4665145 |
Composite polymeric material comprising vinyl chloride and organosilicon moieties and a method for the preparation thereof
A composite polymeric material having a high permeability to oxygen is proposed comprising a vinyl chloride moiety, an organosilicon moiety and, optionally, a third polymeric moiety. Such a...
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4663409 |
Alpha, beta-unsaturated carbonyl modified amino acid monomer and polymers for biomedical uses
Inclusion of carbonyl modified amino acid monomers in polymeric compositions for biomedical applications, including contact lenses, increases the water content and oxygen permeability of the...
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4656235 |
Siloxane-containing polyimide coatings for electronic devices
Siloxane-containing polyimides, useful as conformal coatings for electrical devices, can be synthesized via a novel Diels-Alder reaction in which bis-maleimide derivatives are polymerized with...
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4652622 |
Polysiloxane composition with improved surface wetting characteristics and biomedical devices made thereof
The surface wetting characteristics of polysiloxanes prepared from monomeric polysiloxanes endcapped with activated unsaturated groups and modulus modifiers are improved by the inclusion of small...
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4649185 |
Contact lens comprising trimethylvinylsilane polymer
The contact lens of the invention is shaped of a poly(trimethylvinylsilane) resin having an average molecular weight of at least 200,000 or a copolymer based thereon. The contact lens has a very...
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