US 2023/0174696 A1 · ACRYLIC COPOYMER, ACRYLIC COPOYMER-CONTAINING COMPOSITION AND CROSSLINKED PRODUCT OF SAME

Abstract

The present invention aims to provide an acrylic copolymer capable of maintaining excellent storage stability in the uncrosslinked state even after long-term exposure to high temperatures, and a crosslinked acrylic rubber product produced from the acrylic copolymer which maintains good normal-state properties and good water resistance. The present invention is based on the finding that an acrylic copolymer produced by polymerizing a liquid mixture of an alkoxyalkyl (meth)acrylate containing an alkoxyalkyl group and a crosslinkable monomer containing a carboxy group has excellent storage stability and that a crosslinked product produced from the acrylic copolymer has good normal-state properties and good water resistance.

Claims5

Dependent claims

An acrylic copolymer, comprising

5% by mass to 70% by mass of at least one structural unit derived from an alkoxyalkyl (meth)acrylate containing a C2-C8 alkoxyalkyl group,
the acrylic copolymer satisfying the following conditions (1) and (2):
(1) the acrylic copolymer has a residual divalent metal content within a range from 50 ppm by mass to 500 ppm by mass;
and
(2) the acrylic copolymer comprises 0.5% by mass to 5% by mass of at least one structural unit derived from a crosslinkable monomer containing a carboxy group.

2 more elements

Dependencies are inferred from the claim text.

Acrylic copoymer, acrylic copoymer-containing composition and crosslinked product of same

Life of this patent

Acrylic copoymer, acrylic copoymer-containing composition and crosslinked product of same

Life of this patent

Abstract

Claims5