Chemistry: electrical and wave energy – Processes and products – Processes of treating materials by wave energy
Patent
1976-05-03
1979-01-16
Danison, Walter C.
Chemistry: electrical and wave energy
Processes and products
Processes of treating materials by wave energy
156332, 20415918, 20415919, 260859R, 260860, 260869, 260872, 260884, 260885, 428482, C08F 250, C08F 400
Patent
active
041348141
ABSTRACT:
Halogenated photopolymerizable adhesive, which comprises: (a) 20 to 70% by weight of at least one halogenated polymer, which: (1) has a chain interrupted by at least one oxygen or nitrogen atom, (2) contains from 4 to 70% by weight of halogen atoms attached to carbon atoms having the electronic configuration sp.sup.2, (called "active halogen atoms"), (3) has an average molecular weight between 700 and 10,000 and (4) has a glass transition temperature (Tg) between -80.degree. C and 20.degree. C; (b) 5 to 30% by weight of at least one organic monomer compound containing at least two acrylic and/or methacrylic acid radicals and containing from 0 to 65% by weight of active halogen atoms; (c) 20 to 70% by weight of at least one organic monomer compound containing an acrylic or methacrylic acid radical and containing from 0 to about 65% by weight of active halogen atoms; (d) about 1 to about 25% by weight of a photo-initiator system comprising: (1) 0.5 to 100% by weight of at least one aromatic ketone, (2) 0 to 99.5% by weight of at least one tertiary amine, at least one carbon atom of which, in the alpha position with regard to the nitrogen atom, carries at least one hydrogen atom, (3) 0 to 90% by weight of an aromatic or nonaromatic alpha-dione, the sum of (1) + (2) + (3) representing 100% by weight of the photo-initiator system, the total content of active halogen atoms amonting to 3 to 50% by weight of the total halogenated photopolymerizable adhesive and lamination or contact adhesives based on said halogenated photopolymerizable adhesive.
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Colpaert Marc
De Poortere Michel
Dufour Paul
Vrancken August
Danison Walter C.
UCB Societe Anonyme
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