Crosslinkable urethane resins containing vinyl and carboxyl grou

Details Crosslinkable urethane resins containing vinyl and carboxyl grou Crosslinkable urethane resins containing vinyl and carboxyl grou

1976-12-10

1979-07-24

Taylor, Hosea E.

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, 96115K, 96 351, 528 69, 525528, 525450, 525451, 525454, C08L 6310

Patent

active

041622740

ABSTRACT:
A crosslinkable, especially photopolymerizable urethane resin soluble in organic solvent, suitable as starting materials for photoresist lacquers and for the production of photopolymer printing plates comprising a reaction product of a polyepoxide having more than one 1,2-epoxide group per molecule with acrylic and/or methacrylic acid so that from 60 to 100 mole % of the 1,2-epoxide groups are converted into .beta.-hydroxy acrylic or methacrylic ester groups; 30 to 90 mole % of said .beta.-hydroxy ester groups having been reacted with an isocyanate and subsequently 10 to 70 mole % of said .beta.-hydroxy ester groups having been converted into acid semiester groups with a cyclic dicarboxylic acid anhydride.

REFERENCES:
patent: 3373221 (1968-03-01), May
patent: 3478126 (1969-11-01), Turpin
patent: 3634542 (1972-01-01), Dowd et al.
patent: 3980483 (1976-09-01), Nishikubo et al.

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