Patent · US Expired

Cellulose ester/polymer combinations, and their preparation and use

US5011874A · kind A · utility

14Cited by

4References

12Claims

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	Oct 10, 1989
Grant date	Apr 30, 1991
Priority date	—
Expiry date	Oct 10, 2009

Classification

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

Abstract

Improved cellulose ester-polymer combinations contain a cellulose ester A and at least one polymerized monomer B of the following formula ##STR1## wherein the substituents have the meaning given in the description and wherein the particles of the combinations are essentially 0.1 to 10 mm in size.

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