Patent · US Expired

Resinous laminates having improved gas permeation and resistance to delamination

US3931449A · kind A · utility

38Cited by
7References
17Claims
0Family size

Assignee

Inventors

Key dates

Filing dateAug 16, 1973
Grant dateJan 6, 1976
Priority date
Expiry dateAug 16, 1993

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T428/31935
  • WIPO fieldSurface technology, coating
  • WIPO sectorChemistry

Abstract

A resin laminate structure comprising a layer of a polymer selected from the group consisting of polyolefins and saponified products of ethylene-vinyl acetate copolymers and a layer of a blend comprising (A) a polyolefin and (B) a saponified product of an ethylene-vinyl acetate copolymer having an ethylene content of 25 to 50 mole % and a degree of saponification of at least 96% at an A:B mixing weight ratio ranging from 98:2 to 2:98, said two layers being laminated so that they are adjacent to each other.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.