Patent ID: 6114025
Filing Date: 2000-09-05
Classification: B32B,C08J,Y10T

Abstract:
A process for preparing a polymeric foam, said process comprising the steps of:(a) melting a linear low density polyethylene and a resiliency modifier resin to form a polymeric composition, said polymeric composition comprising from about 1 to about 90 weight percent linear low density polyethylene and from about 10 to about 99 weight percent resiliency modifier resin, said linear low density polyethylene having a z-average molecular weight, M.sub.z, greater than about 700,000 and a polydispersity index, D=M.sub.w /M.sub.n, of from about 10 to about 20;(b) adding a stability control agent to said polymeric composition;(c) dissolving an effective amount of blowing agent;(d) transferring the mixture of step (c) to an expansion zone; and(e) permitting the mixture of step (d) to expand in said expansion zone to produce said polymeric foam.