Patent · US Expired

Polyurethane-based friable sealing compound

US5382647A · kind A · utility

6Cited by

4References

3Claims

0Family size

Assignee

Henkel Kommanditgesellschaft auf Aktien · DE

Inventors

Peter Daute · Beverstedt, DE
Roland Gruetzmacher · Wülfrath, DE
Rainer Hoefer · Goldkronach, DE
Gerhard Stoll · Winnenden, DE

Key dates

Filing date	Apr 16, 1993
Grant date	Jan 17, 1995
Priority date	—
Expiry date	Apr 16, 2013

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S528/905
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

A polyurethane friable sealing compound free of solvent and plasticizer having a shore A hardness of below 40 and consisting essentially of a polyol component and an isocyanate component. The polyol component is selected from modified triglycerides obtained by partial ring opening of epoxidized triglycerides of a fatty acid mixture containing olefinically unsaturated fatty acids and monohydric or polyhydric alcohols. The isocyanate component is selected from polyfunctional aromatic and aliphatic isocyanates, wherein the OH:NCO equivalent ratio is from 1:0.1 to 1:1.15.

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