Patent ID: 8419890
Filing Date: 2013-04-16
Classification: C08F,C08L,C09J

Abstract:
1. A composition that can be used in a structural adhesive, comprising: (a) 20-80% by weight of at least one methacrylate ester monomer; (b) an elastomeric block copolymer styrene-isoprene-styrene; (c) at least one elastomeric block copolymer selected from a styrene-butadiene-styrene copolymer (SBS) and a styrene-isoprene-butadiene-styrene copolymer (SIBS); and (d) 4-20% by weight of at least one elastomer, wherein said elastomer is polybutadiene, wherein said composition comprises between 10 and 30% by weight of the mixture of said elastomeric block copolymer (b) and said elastomeric block copolymer (c), and the proportion of said elastomeric block copolymer (b) to said elastomeric block copolymer (c) is 4:1 to 1.5:1, and wherein said composition has an elongation at break equal to or greater than 70%.