Patent · US Expired

Polyisocyanate polyaddition products

US6794421B2 · kind B2 · utility

1Cited by

9References

13Claims

0Family size

Assignee

BASF SE

Inventors

Andreas Arlt · Weisenheim am Berg, DE
Sarbananda Chakrabarti · Mannheim, DE
Martin Kreyenschmidt · Löhne, DE
Dieter Rodewald · Bad Essen, DE

Key dates

Filing date	Oct 17, 2002
Grant date	Sep 21, 2004
Priority date	—
Expiry date	Oct 17, 2022

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08G2110/0083
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The polyisocyanate polyaddition products comprise hydrophobic compounds plus at least one further compound selected from the group consisting of: (i) organic, cyclic compounds having a molecular weight of from 200 to 3000 g/mol, (ii) salts of metals of transition groups I, II and/or VIII, (iii) organic and/or inorganic acid anhydrides, (iv) cyclic sulfonic esters and/or sulfones, (v) lactones, lactams and/or cyclic esters and/or (vi) &agr;,&bgr;-unsaturated carboxylic acids, &agr;,&bgr;-unsaturated carboxylic acid derivatives, &agr;,&bgr;-unsaturated ketones and/or &agr;,&bgr;-unsaturated aldehydes.

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