Abstract: Vinyl unsaturated copolymers are described which are obtained in a two-step process and which consist of monomeric units A, B, C, D and E, copolymerized in a first step, and in a second step reacted with a reactive vinyl monomer M.sub.v, and in which A is a siloxane or fluorine containing vinyl monomer, 30-70% by weight; B is N,N-dimethylacrylamide or N-vinylpyrrolidone, 30-70% by weight; C is an active hydrogen containing vinyl monomer, 0.5-25% by weight; D are other copolymerizable comonomers, 0-30% by weight, and E is a chain transfer agent, 0-10 mol percent. M.sub.v is a vinyl unsaturated isocyanate.These vinyl unsaturated polymers are useful, either by themselves or in combination with other copolymerizable vinyl monomers, as heat or UV-curable coatings or glass, plastic, wood, paper, textiles, metal or ceramics, said coatings possessing low surface energies and low refractive indices.

Abstract: A contact lens is described which is synthesized by reaction in a mold of a isocyanate capped poly(dialkylsiloxane) prepolymer with a poly(dialkylsiloxane) di- or polyalkanol. The clear polyurethane rubber contact lens is readily made completely wettable by a transfer-grafting process or post-treatment and has a high oxygen permeability.

Abstract: This invention describes polymers which are obtained by copolymerization of 15-85 wt % N,N-dimethylacrylamide with about 15-85% of a fluorinated monomer such as perfluoroalkyl-alkylene acrylate or methacrylate with from 3 to 25 fluorine atoms and optionally, 0-50 wt % other acrylates or methacrylates and 0-20 wt %, but not more than 5 mol % of a polyvinyl functional crosslinking agent. These polymers are machinable in the dry state and form clear hydrogels with about 25-75 wt % water content and which possess oxygen-permeabilities 3-7 times higher than conventional hydrogels of similar water content. In the absence of crosslinking, the novel polymers are plasticized by water, forming clear hydroplastics with 30-70 wt % water content. The crosslinked polymers are especially useful for fabricating contact lenses for extended wear by either cutting and polishing a xerogel button, or by spin casting or direct molding in bulk or in solution.

Abstract: 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 materials are characterized by a superior combination of high oxygen permeability and rigidity.

Abstract: 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 coatings and in the manufacture of contact lens materials.

Abstract: A contact lens possessing a wettable surface in its aqueous environment of use fabricated from a hydrophobic addition polymer incorporating between about 0.5 and about 30% weight oxirane substituted units in the backbone thereof, wherein the outer surfaces of said lens contain an effective hydrophilic inducing amount of a reaction product of said oxirane substituted units of the formula ##STR1## wherein R is hydrogen or methyl;R.sub.1 is ##STR2## or lower alkylene; n is 1 to 4; andR.sub.0 is hydrogen or ##STR3## with a water soluble reactive organic amine, alcohol, thiol, urea or thiourea or a sulfite, bisulfite or thiosulfate, and the use thereof by placement in the eye of a patient in need of the same to correct vision defects of a refractive nature.

Abstract: Organic aprotic solvent soluble polymers which are derivatives of a polyvinyl alcohol, having a weight average molecular weight of at least about 2,000, and containing from about 0.5 to about 90 percent, based on the number of hydroxyl groups in said polyvinyl alcohol, of units of the formula ##STR1## wherein R.sub.1 and R.sub.2 are independently alkylene, arylene, cycloaliphatic, aralkylene or aralkarylene, n is 0 or 1, A.sub.1 is a carbamoyloxy or ureido linking group, A is an oxa, imino or ureido group, R.sub.3 is hydrogen or methyl, R.sub.4 is hydrogen, or when R.sub.3 is hydrogen, methyl or also --COOR.sub.5 where R.sub.5 is hydrogen or lower alkyl, and crosslinked hydrogel contact lenses made therefrom and their preparation.

Abstract: Organic aprotic solvent soluble polymers which are derivatives of a polyvinyl alcohol, having a weight average molecular weight of at least about 2,000, and containing from about 0.5 to about 90 percent, based on the number of hydroxyl groups in said polyvinyl alcohol, of units of the formula ##STR1## wherein R.sub.1 and R.sub.2 are independently alkylene, arylene, cycloaliphatic, aralkylene or aralkarylene, n is 0 or 1, A.sub.1 is a carbamoyloxy or ureido linking group, A is an oxa, imino or ureido group, R.sub.3 is hydrogen or methyl, R.sub.4 is hydrogen, or when R.sub.3 is hydrogen, methyl or also -COOR.sub.5 where B.sub.5 is hydrogen or lower alkyl, and crosslinked hydrogel contact lenses made therefrom and their preparation.

Abstract: Perfluoroalkyl alkylene substituted polydienes are described which are obtained by addition of perfluoroalkyl-alkylene thiols to polydienes and which are useful as hard, oil- and water repellent coatings on metal, paper, wood, glass ceramics, textiles or leather.

Abstract: Polysiloxanes of uniform molecular weight (MW) distribution with 500-10,000 MW segments of polysiloxane and containing at least one vinyl group connected to said polysiloxane segments through intervening alkylene-urea or -urethane linkages are prepared from polysiloxane-polyols, -polyamines or -polythiols by reaction with an unsaturated compound containing an isocyanato moiety, for example 2-isocyanatoethyl methacrylate. The polysiloxanes containing the vinyl groups are useful as radiation- or thermally curable coatings for glass, textiles, plastics, wood, ceramics, metals, as films or bandages for medicinal purposes, or molded shapes, in form of contact lenses, catheters or implants, either by themselves or in combination with other vinyl monomers; and are particularly useful in preparing hard or soft contact lenses, including hydrogel contact lenses.

Abstract: Fluoroaliphatic-thio,-sulfinyl and -sulfonyl substituted bicycloaliphatic amic acid amine salts of the formula ##STR1## where R.sub.f is perfluoroalkyl, R' is alkylene optionally interrupted by --O--, --S-- or ##STR2## where R.sub.a is hydrogen or alkyl, Y is lower alkylene or --O--, n is 0-2, R.sub.1 and R.sub.2 are independently hydrogen, lower alkyl, hydroxy lower alkyl or together with the nitrogen to which they are attached, represent morpholino, R.sub.3, R.sub.4 and R.sub.5 are independently hydrogen, lower alkyl, or hydroxy lower alkyl, R.sub.6 is lower alkyl, carboxy lower alkyl, sulfo lower alkyl, hydroxy lower alkyl, benzyl or together with R.sub.5 and the nitrogen to which they are attached represent morpholino, and R is hydrogen or methyl are provided. These salts applied in the form of aqueous solutions, dispersions or emulsions are useful in rendering cellulosic and natural and synthetic polyamide materials oil and water repellent.

Abstract: A controlled-release, drug-delivery composition which comprises (A) a crosslinked copolymer, capable of swelling in ethanol to give a swollen copolymer containing at least 40% by weight of ethanol, and capable of swelling in water to give a swollen copolymer containing no more than 20% by weight of water, where the swelling ratio (% ethanol: % water) is 2:1 to 22:1, which comprises the copolymerization product of (a) 50 to 99% by weight of said copolymer of a water-insoluble monoolefinic monomer or (a) with 0 to 45% by weight of total monomers of a water-soluble monoolefinic monomer, with (b) 50 to 1% by weight, but not more than 20 mol % of a divinyl or polyvinyl crosslinking agent; and (B) an effective amount of a pharmaceutical medicament is useful for the controlled and prolonged release of drugs when taken orally.

Abstract: Fluoroaliphatic-thio,-sulfinyl and -sulfonyl substituted bicycloaliphatic amic acid amine salts of the formula: ##STR1## where R.sub.f is perfluoroalkyl, R' is alkylene optionally interrupted by --O--, --S-- or ##STR2## where R.sub.a is hydrogen or alkyl, Y is lower alkylene or --O--, n is 0-2, R.sub.1 and R.sub.2 are independently hydrogen, lower alkyl, hydroxy lower alkyl or together with the nitrogen to which they are attached, represented morpholino, R.sub.3, R.sub.4 and R.sub.5 are independently hydrogen, lower alkyl, or hydroxy lower alkyl, R.sub.6 is lower alkyl, carboxy lower alkyl, sulfo lower alkyl, hydroxy lower alkyl, benzyl or together with R.sub.5 and the nitrogen to which they are attached represent morpholino, and R is hydrogen or methyl are provided. These salts applied in the form of aqueous solutions, dispersions or emulsions are useful in rendering cellulosic and natural and synthetic polyamide materials oil and water repellent.

Abstract: Clear, strong, crosslinked polymers are described, which are obtained by copolymerization of (A) 8-70% of a linear or branched polysiloxane of 400-100,000 molecular weight (MW) containing at least two terminal or pendant, polymerizable, vinyl groups per each 5000 MW unit of polysiloxane and which are attached to the polysiloxane through at least two urethane, thiourethane, urea or amide linkages and (B) 30-92% of a mono- or divinyl compound or a mixture of such monomers consisting of 85 to 100% of water insoluble monomers. These polymers are useful in the preparation of hard or soft contact lenses.

Abstract: Non-uniform water-insoluble interpenetrating polymer blend compositions comprising a first permeable water swellable polymer substrate interpenetrated in a gradient substantially normal to the substrate surface by a second less permeable condensation polymer to form a diffusion rate controlling membrane therein. Such compositions are useful as polymers with reduced permeabilities for water and organic solvents and therefore for the controlled delivery of active ingredients such as fragrances and bio-affecting agents into air or aqueous environments, or in membrane separation processes.

Abstract: A water-insoluble hydrophilic gel comprising: (A) about 30 to about 90% of a hydrophilic (a) polymer of identical or different watersoluble mono-olefinic monomers, or (b) copolymer of said watersoluble monomers with 1 to 70% of water-insoluble, identical or different mono-olefinic monomers, which polymer or copolymer is cross-linked with (B) about 10 to about 70% of a terminal diolefinic hydrophobic macromer having a molecular weight from about 400 to about 8000 is disclosed. The gel is suitable for use as a carrier for medicaments and pesticides.

Abstract: A water-insoluble hydrophilic gel comprising: (A) about 30 to about 90% of a hydrophilic (a) polymer of identical or different watersoluble mono-olefinic monomers, or (b) copolymer of said watersoluble monomers with 1 to 70% of water-insoluble, identical or different mono-olefinic monomers, which polymer or copolymer is cross-linked with (B) about 10 to about 70% of a terminal diolefinic hydrophobic macromer having a molecular weight from about 400 to about 8000.

Abstract: This invention describes new perfluoroalkyl substituted esters, diesters and polyesters which contain at least one cyclic 5-membered anhydride group or two carboxy groups, as well as half amides and half esters thereof; their synthesis and their use as surface-active reactants in polycondensate resin systems.The anhydrides are synthesized by reaction of perfluoroalkyl substituted alcohols or diols with dianhydrides or an anhydrides-acid chloride and have the general structure ##STR1## wherein: Q is the tetra-radical rest of a tri- or tetra-carboxylic acid, which contains at least one 1,2-dicarboxy grouping,X is hydrogen or COOH,R.sub.f is a perfluoroalkyl or perfluoroalkoxy-perfluoroalkyl group of 4 to 18 carbon atoms,a is 1 or 2,A is hydrogen or ##STR2## wherein: m is an integer from 0 to 5, andR.sup.3 is the residue of a R.sub.f substituted alcohol or diol.

Abstract: Perfluoroalkyl compounds containing ether groups have the formulaR.sub.f R.sub.1 SCH.sub.2 CH.sub.2 O T Zwherein R.sub.f is a perfluoroalkyl, R.sub.1 is alkylene or alkyleneoxy or aminoalkylene, T is alkylene, and Z is hydrogen; hydroxy; NR.sub.3 R.sub.4, where R.sub.3 and R.sub.4 each is alkyl or together with nitrogen form a heterocyclic ring; N.sup.+ R.sub.3 R.sub.4 (R.sub.5)X.sub.z.sup.-y, where R.sub.5 is hydrogen, oxide, alkyl, or substituted alkyl, X is an anion, and y is 1 or 2; z is 0 or 1 or is --OCH.sub.2 CH.sub.2 SR.sub.1 R.sub.f ; can be prepared directly by free-radical catalyzed addition of a perfluoroalkylthiol to a vinyl ether or subsequent reaction. These compounds are useful as surfactants and oil spill collecting agents.

Abstract: The invention is directed to fluorinated compounds of the formula ##STR1## wherein R.sub.f is a perfluoroalkyl or perfluoroalkoxyperfluoroalkyl group, R.sup.1 is a branched or straight chain alkylene, alkylenethioalkylene, alkyleneoxyalkylene or alkyleneiminoalkylene group, X is oxygen or an amino group, Q is an organic group containing at least one amino group and y is zero or 1, and the corresponding succinimides. These compounds are useful as surfactants.