Patent · US Expired

Block copolymers

US4136137A · kind A · utility

10Cited by
8References
8Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 8, 1978
Grant dateJan 23, 1979
Priority date
Expiry dateMay 8, 1998

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T428/31696
  • WIPO fieldMacromolecular chemistry, polymers
  • WIPO sectorChemistry

Abstract

Block copolymers and adhesive compositions comprising a block copolymer of a conjugated diene, styrene, and a hydrocarbyl-substituted styrene, the block copolymer having an inherent viscosity within the range of from about 0.5 to about 3.

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