C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
402/305, 402/392
C08F 2/50 (2006.01) C08F 4/00 (2006.01) C08F 20/12 (2006.01) C09J 7/02 (2006.01) C09J 133/08 (2006.01) G03F 7/029 (2006.01)
Patent
CA 1157998
Abstract of the Disclosure The invention concerns a photopolymerizable mixture of (a) acrylic monomer such as 95 parts of an alkyl acrylate and 5 parts of acrylic acid and (b) 0.01 to 2 parts by weight of a chromophore-substituted- halomethyl-s-triazine. The invention differs from the prior art in that the s-triazine has the formula Image wherein R1, R2, R3 and R4 ar independently hydrogen, alkyl or alkoxy groups, and 1 to 3 of R1, R2, R3 and R4 are hydrogen. This s-triazine can be made by a more simple and hence more economical process than can the s-triazine of the prior art, tends to provide desirably shortened reaction times and somewhat greater tolerance to oxygen, and avoids the yellowish color encountered in the prior art. The novel photopolymerizable mixture is primarily useful for making pressure-sensitive adhesive tapes.
369335
Minnesota Mining And Manufacturing Company
Smart & Biggar
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