Patent · US Expired

Aqueous fine dispersion of an organophilic sheet silicate

US5294254A · kind A · utility

4Cited by

3References

13Claims

0Family size

Assignee

Hoechst GmbH · DE

Inventors

Guido Dessauer · Tutzing, DE
Klaus Kuber · Nürnberg, DE
Ute Horn · Westerburg, DE

Key dates

Filing date	Nov 12, 1992
Grant date	Mar 15, 1994
Priority date	—
Expiry date	Nov 12, 2012

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/2991
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

The invention relates to an aqueous fine dispersion of an organophilic sheet silicate which is composed of a sheet silicate which is capable of cation exchange and of a quaternary organic onium salt reacted therewith, and contains 3 to 30% by weight, based on the organophilic sheet silicate, of polyvinyl alcohol. This fine dispersion is suitable as coating composition for paper and board and as lubricant additive for conventional coating compositions.

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