Patent · US Expired

Polyketone roofing membranes

US4820578A · kind A · utility

1Cited by
11References
10Claims
0Family size

Assignee

Inventors

Key dates

Filing dateApr 28, 1988
Grant dateApr 11, 1989
Priority date
Expiry dateApr 28, 2008

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T442/2213
  • WIPO fieldMacromolecular chemistry, polymers
  • WIPO sectorChemistry

Abstract

A weatherproof coating for roofs or decks is formed when an adhering material is used in conjunction with a nonwoven mat formed from a linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon.

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