The polyolefine type resin constituent for the building a bridge foaming body, aromatic ring, alicycle or complex ring was allotted to

摘要

PROBLEM TO BE SOLVED: To obtain the subject polyolefin resin composition for crosslinked foam that can suppress the distribution of crosslinking degree in the thickness direction of the foam body and can increase resistance to heat, fabricability and the like by formulating a specific polyfunctional monomer to a polyolefin resin. ;SOLUTION: To (A) a polyolefin resin preferably in an amount of 100 pts.wt., are formulated (B) a (meth)acrylic polyfunctional monomer bearing an aromatic, alicyclic or heterocyclic ring almost on the center in the chemical formula, preferably a di(meth)acrylate of the formula (R is H or CH3), preferably in an amount of 1-10 pts.wt., (C) a heat decomposition type chemical foaming agent, for example, azodicarbonamide or the like, preferably in an amount of 1-20 pts.wt. In a preferred embodiment, the component A comprises 30-90 wt.% of a polypropylene resin having a melt flow rate of 0.5-5 g/10 min, and 10-70 wt.% of a polyethylene resin having a melt flow rate of 1-20 g/10 minutes.;COPYRIGHT: (C)2000,JPO