Process for the preparation of polymeric compositions
AssigneeUnion Carbide Corporation
InventorsRobert J. Weber, Jr., Donald F. Smith, Jr.
Life of this patent
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Abstract
Described herein is a process for the polymerization of a reactive monomer derived from the reaction product of a hydroxyalkyl acrylate or methacrylate and a lactone with other ethylenically unsaturated monomers. The resulting polymeric compositions can be made into high quality industrial finishes by incorporation of various conventional crosslinking agents, plus other normally used formulating ingredients.
Claims26
A process for preparing a polymeric composition comprising polymerizing one or more ethylenically unsaturated monomers with a composition comprising:
- (a) 0 to 10 weight percent of a lactone;
- (b) greater than 0 weight percent to about 20 weight percent of hydroxyalkyl acrylate or methacrylate;
- (c) 2 or less weight percent of diacrylates;
- (d) 10 or less weight percent of products resulting from Michael addition, acrylic polymerization, transesterification reactions, or other side reactions;
- (e) remainder to 100 weight percent of a reactive monomer of the following formula:
- ##STR4## wherein R, R.sub.1, R.sub.2, and R.sub.3 are independently hydrogen or methyl, R.sub.4 and R.sub.5 are independently hydrogen or alkyl of from 1 to 12 carbon atoms, x is from 4 to 7, and both n and the average value of n in the composition are equal to or greater than 1;
- and
- (f) less than about 100 parts per million of catalyst.
A process for preparing a crosslinked polymeric composition comprising:
- (1) polymerizing one or more ethylenically unsaturated monomers with a composition comprising:
- (a) 0 to 10 weight percent of a lactone;
- (b) greater than 0 weight percent to about 20 weight percent of hydroxyalkyl acrylate or methacrylate;
- (c) 2 or less weight percent of diacrylates;
- (d) 10 or less weight percent of products resulting from Michael addition, acrylic polymerizaton, transesterification reactions, or other side reactions;
- (e) remainder to 100 weight percent of a reactive monomer of the following formula:
- ##STR5## wherein R, R.sub.1, R.sub.2, and R.sub.3 are independently hydrogen or methyl, R.sub.4 and R.sub.5 are independently hydrogen or alkyl of from 1 to 12 carbon atoms, x is from 4 to 7, and both n and the average value of n in the composition are equal to or greater than 1;
- and
- (f) less than about 100 parts per million of catalyst;
- and
- (2) crosslinking the polymeric composition of (1) with an isocyanate resin or a resin selected from the group consisting of melamine formaldehydes, urea formaldehydes and benzoguanamine formaldehydes.
Dependencies are inferred from the claim text.