Patent · US Expired

Elastomeric composition having improved cut growth resistance

US4767809A · kind A · utility

9Cited by
17References
19Claims
0Family size

Assignee

Inventor

Key dates

Filing dateOct 14, 1986
Grant dateAug 30, 1988
Priority date
Expiry dateOct 14, 2006

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC08L21/00
  • WIPO fieldMacromolecular chemistry, polymers
  • WIPO sectorChemistry

Abstract

Elastomeric compositions produced by curing blends comprising (A) a highly unsaturated rubber; (B) a saturated rubber; (C) a phenylenediamine compound and (D) a curing agent comprised of (i) sulfur and/or a sulfur donor compound, (ii) a sulfur cure accelerator, and (iii) a peroxide curative; wherein between about 1 and about 10 parts by weight of (C) per 100 parts by weight of (A) plus (B) is present exhibit unexpectedly high resistance to cut growth. In addition, a process for producing such rubber compositions is disclosed.

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