Abstract: This invention is directed to polymers (including oligomers) that contain (N-substituted carbamoyloxy)alkanoyloxyalkyl acrylates, to a process for their preparation by reacting the carbamoyloxy alkanoyloxyalkyl acrylates with other ethylenically unsaturated monomers, and to coating, ink, adhesive, and sealant compositions (including the cured coatings, inks, adhesives, and sealants) that are obtained by crosslinking the above compositions by various means. The cured compositions, which are, for example, high-quality industrial finishes, sealants or encapsulants, are made by incorporation of various conventional crosslinking agents and other normally-used formulating ingredients with the polymeric compositions of the invention.

Abstract: Photosensitive compositions having surfactant vesicles therein are described. A method is also shown in which the photosensitive vesicle containing an enclosed substance is exposed to light to control the release of the substance.

Abstract: Novel radiation-curable, water-compatible, resinous compositions result from (1) terminally unsaturated molecules which are the esters of an epoxy compound and (2) the reaction product of a glycidyl ether and an unsaturated acid having at least one glycidyl group per molecule converted to an onium salt of a quaternary ammonium or amine salt, with the anion of an inorganic or organic acid.

Abstract: A bonding structure of a timepiece case such as the glass, bezel, case band, pipe, core and case back. Seams bonded with the bonding agent are both durable and waterproof. The bonding agent includes relative to:(A) 100 parts by weight urethane (met) acrylate having more than one acryloyl group and/or methacryloyl group per molecule;(B) 30 to 200 parts by weight (meta) acrylate having more than one hydroxyl group per molecule;(C) 30 to 200 parts by weight isobornyl (meta) acrylate;(D) 30 to 200 parts by weight pre-tacky resin of the petroleum series and coal series and/or the rosin ester series which are soluble in (meta) acrylate monomer;(E) 5 to 50 parts by weight acrylic acid and/or methacrylic acid; and(F) 0.5 to 15 parts by weight photopolymerization initiator of benzoin or benzyldimethylketal or the like.

Abstract: Novel, non-crosslinked copolymers of vinyl trifluoroacetate (VTA) and up to 5 weight percent of the VTA of certain comonomers, such as vinyl esters, vinyl ethers, or disubstituted ethylene monomers, are disclosed. Solvolysis of these copolymers provides novel water-insoluble, non-crosslinked, poly(vinyl alcohol) copolymers which can be hydrated to copolymers having controllably variable hydrogel properties and high strength. Such poly(vinyl alcohol) copolymers are particularly desirable as ophthalmic devices such as contact lenses, corneal implants and transplants, and intraocular lenses.

Abstract: An ultraviolet curable ink composition comprising, as main components,(A) a polyurethane poly(meth)acrylate obtained by reacting a polyisocyanate compound of the formula: ##STR1## wherein R.sub.1 is a hydrogen atom or a methyl group, and n is an integer of from 1 to 20, with a hydroxyl group-containing (meth)acrylate, and having, in one molecule, at least two (meth)acryloyl groups and at least two urethane bonds,(B) a radical polymerizable low molecular weight compound, and(C) a photopolymerization initiator.

Abstract: Polyfunctional cationically polymerizable styryloxy compounds of the formula ##STR1## where R.sup.1 is H or methyl; R.sup.2 is hydrocarbyl, hydrocarbyl interrupted by ether oxygen atoms, or halo substituted hydrocarbyl; R.sup.3 is H, lower alkyl, or alkoxy; G is any multivalent organic or inorganic radical free of amino or aliphatic thiol groups; and n is an integer of two or more.

Abstract: A drug releasing system in the form of a medical patch comprised of a drug dispensing polyurethane member as a matrix for a therapeutically effective amount of drug dispersed therein. The polyurethane of the drug dispensing or releasing member is a polyurethane acrylic copolymer which is the reaction product of an oligomer of a diisocyanate, a glycol with a molecular weight between the range of 500-5,000 molecular weight units and an acrylyl chain terminator having a molecular weight between the range of 40-200 molecular weight units cured by actinic radiation. In its preferred embodiment, the foregoing drug releasing or dispensing member is incorporated into a medical patch or drug release system comprised of successive layers of an ultrathin polyurethane substrate, pressure sensitive adhesive, the above-described drug releasing member and optionally a second layer of adhesive.

Abstract: Compositions of the invention comprise a radiation sensitive compound having ethylenic unsaturation and at least one moiety selected from the group consisting of a urea moiety, a urethane moiety and mixtures thereof, a radiation insensitive compound having a number average molecular weight of at least about 400 comprising at least about 40 percent, by weight, based on the weight of the radiation insensitive compound, of aromatic ring moieties and having a hydroxyl equivalent weight of between about 200 and 1500 and a crosslinking agent reactive with the hydroxyl groups present in said radiation insensitive compound, said crosslinking agent being selected from the group consisting of an aminoplast resin, a blocked isocyanate and mixtures thereof. The composition is capable of being cured using heat and either ultraviolet light or ionizing radiation. A process for applying and curing the composition of the invention on a substrate is also disclosed.

Abstract: The disclosed wound dressings have a drug dispersed throughout a polyurethane matrix that is the reaction product of: (A) An isocyante terminated prepolymer formed by reaction of isophorone diisocyanate and a macroglycol and (B) a monomer containing hydroxyl and vinyl groups. The reaction product is a vinyl terminated polyurethane oligomer which is liquid at room temperature and which may be readily admixed with a pharmacoactive substance and a photosensitizer, formed into a film and cured by exposure to UV light without release of heat.In the most preferred embodiments the foregoing oligomer is codissolved in an organic solvent with a polyurethane polymer which is the reaction product of:dicyclohexyl methane diisocyanate;a polytetramethylene ether polyol having a molecular weight in the range of 1000-3000 daltons; and1,4-butane diol.That solution is then admixed with the pharmacoactive agent, formed into a film and cured.

Abstract: Exposure to light or an energetic source of radiation of a mixture of a vinyl monomer or prepolymer with a photo-activatable polysilane results in the polymerization of the vinyl monomer or prepolymer.

Abstract: The disclosed wound dressings have a drug dispersed throughout a polyurethane matrix that is the reaction product of: (A) An isocyante terminated prepolymer formed by reaction of isophorone diisocyanate and a marcoglycol and (B) a monomer containing hydroxyl and vinyl groups. The reaction product is a vinyl terminated polyurethane oligomer which is liquid at room temperature and which may be readily admixed with a pharmacoactive substance and a photosensitizer, formed into a film and cured by exposure to UV light without release of heat.In the most preferred embodiments the foregoing oligomer is codissolved in an organic solvent with a polyurethane polymer which is the reaction product of:dicyclohexyl methane diisocyanate;a polytetramethylene ether polyol having a molecular weight in the range of 1000-3000 daltons; and1,4-butane diol.That solution is then admixed with the pharmacoactive agent, formed into a film and cured.