Patent ID: 9422462
Filing Date: 2016-08-23
CPC Classification: B32B,C08K,C08L,C09J,H01L,Y10T

Claim Text:
1. An adhesive sheet for dicing and/or conveying, comprising a substrate and an adhesive composition laminated thereon, the substrate including polyvinyl chloride and a polyester-based plasticizer, wherein said adhesive composition includes a (meth)acrylate copolymer component (A) with a weight-average molecular weight lower than 350,000 having a functional group-containing monomer unit; and a (meth)acrylate copolymer component (B) with a weight-average molecular weight of 350,000 to 2,000,000 having a functional group-containing monomer unit, in a mass ratio ranging from 10:90 to 90:10, wherein a content of a cross-linking agent which reacts with functional groups of said component (A) and said component (B) is in a range of 0.5 to 20 mass parts with respect to 100 mass parts of a sum of said component (A) and said component (B), and wherein 10 to 95 mass % of said monomer unit composing said component (A) is 2-ethylhexyl acrylate, and 10 to 95 mass % of said monomer unit composing said component (B) is butyl acrylate.