Patent · US Expired

Aqueous cellulose ester dispersions and their preparation

US4970247A · kind A · utility

22Cited by

1References

10Claims

0Family size

Assignee

Wolff Walsrode AG · DE

Inventors

Lutz Hoppe
Wolfgang Koch · Batavia, US
Erhard Luhmann · Bad Fallingbostel, DE
Michael Piepho · Bad Fallingbostel, DE

Key dates

Filing date	Mar 13, 1989
Grant date	Nov 13, 1990
Priority date	—
Expiry date	Mar 13, 2009

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08F251/02
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

Improved cellulose ester dispersions in the aqueous phase contain dispersed particles which contain cellulose esters, a polymerized monomer A having a polymerizable double bond and a polymerized monomer B having at least two polymerizable double bonds.

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