Patent · US Expired

Compositions for sealing products

US4451598A · kind A · utility

17Cited by
9References
8Claims
0Family size

Assignee

Inventor

Key dates

Filing dateJun 2, 1983
Grant dateMay 29, 1984
Priority date
Expiry dateJun 2, 2003

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC09K2200/069
  • WIPO fieldMacromolecular chemistry, polymers
  • WIPO sectorChemistry

Abstract

A composition for sealing products comprising from 35 to 95 weight percent of at least one distillation product selected from the group consisting of bitumens and soft pitches, and from 5 to 65 weight pecent of a terpolymer having a melt index between 1 and 10 dg/minute and comprising: (i) from 88 to 98.7 mole percent of units derived from ethylene (ii) from 1 to 10 mole percent of units derived from an ester selected from alkyl acrylates and methacrylates, wherein said alkyl group has from 1 to 6 carbon atoms, and (iii) from 0.3 to 3 mole percent of units derived from maleic anhydride.

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