C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
400/2004, 402/25
C08F 283/00 (2006.01) C08K 5/00 (2006.01)
Patent
CA 1216389
ABSTRACT There is disclosed a process for the polymerization of a non-air-curing monomer having at least two ethylenically unsaturated groups in which an oxidative prepolymerizate is incorporated into the monomer. The prepolymerizate is an oxidatively polymerizable compound in which there at least two unsaturations which are each .beta. , .gamma. to oxygen or sulfur which is employed in an amount of 1 - 200 parts by weight of the prepolymerizate per mole of non-air-curing monomer, and is of the formula Image where R1 is a radical characterized by a molecular weight less than about 2000, obtained by removal of active hydrogen from an active hydrogen compound selected from the group consisting of water, alcohols, thiols, carboxylic acids, carboxylic amides, and amines, where the functionality of R1 is n, and is in the range of 1 to 10, where R2 is selected from the group consisting of hydrogen and C1 to C10 organic radicals, where E is a moiety containing a radical having an activated olefinic unsaturation .beta.,.gamma. to the activating group and is present in sufficient amount to provide a .beta.,.gamma. -unsaturation equivalent of less than about 250, where m is the average number of E moieties in the n segments of the structure and where the product of m and n is in the range of about 4 to about 60. Compositions are also disclosed of the oxidative prepolymerizate described above together with the polymerizable monomer. The resulting products formed after polymerization have a wide field of utility in adhesives, moldings, casting operations and the like. With the present development, since the oxidative prepolymerizate and the monomer copolymerize, varying of the properties of the final product can be readily achieved.
443947
Mcfadden Fincham
Ucb S.a.
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