Patent · US Active

VOC-free or VOC-poor polyurethane coating

US8178167B2 · kind B2 · utility

2Cited by

7References

32Claims

0Family size

Assignee

SIKA TECHNOLOGY AG · CH

Inventors

Burkhard Walther · Taching am See, DE
Urs Burckhardt · Zürich, CH
Susanne Strauss · Stuttgart, DE
Carsten Zilg · Ditzingen, DE
Norman Blank · Wayne, US

Key dates

Filing date	Jun 29, 2007
Grant date	May 15, 2012
Priority date	—
Expiry date	Oct 24, 2028

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC09D175/12
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The invention relates to humidity hardening compounds containing at least one polyurethane polymer, P, exhibiting an isocyanate group, at least one polyimine ALD of Formula (I) of at least 22% by weight, in relation to the sum of the components of the compound which contain the isocyanate group, as well as, if necessary, a polyisocyanate oligomer OP. The humidity hardening compound is particularly suitable for providing coatings and linings. The use of the imines makes possible VOC-free or VOC-poor compounds, which is a substantial advantage for indoor applications.

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