Prepolymers for photocurable compositions

Details Prepolymers for photocurable compositions Prepolymers for photocurable compositions

1978-07-28

1981-01-06

Seccuro, Carman J.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From reactant having at least one -n=c=x group as well as...

20415919, 20415923, C08G 1867

Patent

active

042437938

ABSTRACT:
A prepolymer for use in preparing photocurable compositions is prepared by reacting an aliphatic diisocyanate having terminal isocyano groups and at least one alkyl side chain with a hydroxy-, mercapto- or amino-containing olefinically unsaturated compound. This prepolymer is compounded with a photosensitizer and, optionally, a polymercaptan to prepare photocurable compositions.

REFERENCES:
patent: 2998451 (1961-08-01), Boenig
patent: 3409595 (1968-11-01), Muller et al.
patent: 3759809 (1973-09-01), Carlick et al.
patent: 4019972 (1977-04-01), Faust
patent: 4056453 (1977-11-01), Barzynski et al.
patent: 4119510 (1978-10-01), Williams

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