Polymerisable compositions containing tetraacrylates

Details Polymerisable compositions containing tetraacrylates Polymerisable compositions containing tetraacrylates

C - Chemistry, Metallurgy

08

L

C08L 63/00 (2006.01) C09D 4/00 (2006.01) G03C 9/08 (2006.01) G03F 7/00 (2006.01) G03F 7/027 (2006.01)

Patent

CA 2116912

Polymerisable compositions containing tetraacrylates Abstract of the Disclosure Photopolymerisable compositions comprising (a) a tetraacrylate of formula I or II Image (I) Image (II), wherein R1 is a hydrogen atom or methyl, X1 and X2 are each independently of the other -O- or -CO-O-, R2 is a divalent aliphatic, cycloaliphatic or aromatic radical of a diglycidyl compound that contains no more glycidyl ether or ester groups, A is a divalent aliphatic, cycloaliphatic or aromatic radical of a diisocyanate compound that contains no more isocyanate groups, n is an integer from 1 to 8, and R3 is a tetravalent cycloaliphatic radical of a diepoxide compound that contains no more 1,2-epoxide groups at the cycloaliphatischen ring, (b) at least one liquid radically polymerisable compound that differs from component a), and (c) a radical photoinitiator, are suitable preferably for the production of three-dimensional objects by the stereolithographic technique.

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