Surface-active photoinitiators

Details Surface-active photoinitiators Surface-active photoinitiators

2005-08-16

2005-08-16

Cameron, Erma (Department: 1762)

Coating processes

Direct application of electrical, magnetic, wave, or...

Polymerization of coating utilizing direct application of...

C427S515000, C427S517000, C427S519000, C427S521000

Reexamination Certificate

active

06929828

ABSTRACT:
A process for the production of coatings having scratch-resistant durable surfaces, in which there is used a photocurable formulation comprising a surface-active photoinitiator, concentrated at the surface of the formulation, of formula (Ia) or (Ib), wherein R and R3are, for example, a radical of formula (II); R1is, for example, hydrogen, A1-X1- or a radical of formula (II); R2is, for example, unsubstituted or substituted C1-C12alkyl or A2-X2-; R4is, for example, hydrogen or A4-X4-; R5is, for example, hydrogen or A5-X5- or is a radical of formula (II); R6, R7, R8, R9and R10are each independently of the others, for example, hydrogen, A-X- , A3-X3- or C1-C12alkyl; A, A1, A2, A3, A4and A5are each independently of the others, for example, a surface-active radical of formula (III); n is a number from 1 to 1000, m is a number from 0 to 100; p is a number from 0 to 10 000; R18, R19, R20, R21, G1and G2are, for example, C1-C18alkyl; and X, X1, X2, X3, X4and X5are, for example, a single bond.

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