Patent ID: 6861013

Claim:
A die-attaching paste comprising as essential components: (A) a hydrocarbon having a number-average molecular weight of 500 to 5,000 and at least one double bond in the molecule, or its derivative, said hydrocarbon or its derivative consisting of (A1) a combination of a compound obtained by a reaction between a maleinized polybutadiene and a (meth)acrylic acid/aliphatic dialcohol ester, and an epoxidized polybutadiene, (A2) a polybutadiene having acrylic or methacrylic group at the two terminals, or (A3) a combination of an acrylic or methacrylic group-containing polybutadiene which is liquid at room temperature and an epoxidized polybutadiene, (B) a reactive diluent, (C) a radical polymerization catalyst, and (D) a filler.