Abstract: A radiation-curable composition suitable for use as an adhesive for bonding glass, and in particular for the production of clear glass laminates, and of the kind comprising a urethane acrylate material in an .alpha..beta.-ethylenically unsaturated diluent therefor, wherein the urethane acrylate material comprises a first component which is generally difunctional and a second component which has a functionality of at least about 3 and a molecular weight M.sub.N above 1200.

Abstract: Radiation curable composition suitable for use as an adhesive for bonding glass, especially for the production of clear glass laminates, and comprising a urethane acrylate component in an .alpha..beta.-ethylenically unsaturated diluent which comprises (i) acrylic acid, (ii) a monoester of acrylic acid and a C.sub.1-6 alkanol or substituted derivative thereof said monoester being present in an amount of up to 400% by weight of component (i), and optionally (iii) up to 40% by weight of multiacrylate.

Abstract: An acrylic-acid- based photopolymerizable composition is prepared which is capable of binding bioactive substances after being photopolymerized. The composition may be applied as a coating on a carrier substrate, photopolymerized and a bioactive substance fixed thereto. The composition adheres well to any usual carrier substrates, and its degree of hydrophilicity and permeability can be adapted to needs. The composition contains acrylic acid, a photoinitiator which is an aromatic ketone compound, a photopolymerization activator and adhesion promotor which is an amino-alcohol, acrylate or methacrylate, and a copolymerizable olefinic monomer which contains a reactive functional group capable of binding bioactive substances. The olefinic monomer is preferably N-hydroxysuccinimide acrylate, N-hydroxysuccinninimde amidocaproate, epoxypropyl acrylate or 2-isocyanato-ethyl acrylate.

Abstract: A photo-hardenable adhesive composition particularly suitable for use in the bonding of glass to other materials, especially plastics, as in the production of safety glass and armored glass laminates and comprising(A) a photopolymerizable ester of an .alpha.,.beta.-ethylenically unsaturated acid and a hydroxylated urethane or urea and having a molecular weight of 500 to 10,000(B) a photoinitiator(C) a substituted or unsubstituted aliphatic or cycloaliphatic N,N-dialkylamino alcohol ester of an .alpha.,.beta.-ethylenically unsaturated carboxylic acid, said alcohol having an alkylene moiety of up to six carbon atoms between hydroxy and the amino functions, and(D) an .alpha.,.beta.-ethylenically unsaturated carboxylic acid in an amount equal to one mole per mole of C, (C) and (D) being capable of reacting together to form a betaine, and preferably(E) at least one further copolymerizable monomer or oligomer and which may comprise an excess of (C) or (D) over equimolar.

Abstract: A photo-hardenable adhesive composition particularly suitable for use in the bonding of glass to other materials, especially plastics, as in the production of safety glass and armoured glass laminates and comprising(A) a photopolymerisable ester of an .alpha.,.beta.-ethylenically unsaturated acid and a hydroxylated urethane or urea and having a moleculare weight of 500 to 10,000(B) a photoinitiator(C) a substituted or unsubstituted aliphatic or cycloaliphatic N,N-dialkylamino alcohol ester of an .alpha.,.beta.-ethylenically unsaturated carboxylic acid, said alcohol having an alkylene moiety of up to six carbon atoms between hydroxy and the amino functions, and(D) an .alpha.,.beta.-ethylenically unsaturated carboxylic acid in an amount equal to one mole per mole of C, (C) and (D) being capable of reacting together to form a betaine, and preferably(E) at least one further copolymerisable monomer or oligomer and which may comprise an excess of (C) or (D) over equimolar.

Abstract: A photohardenable adhesive comprising, as a photopolymerizable agent, acrylic acid.