Patent · US Expired

Polymers having more than one void

US5989630A · kind A · utility

9Cited by

1References

9Claims

0Family size

Assignee

BASF SE

Inventors

Bernhard Schlarb · Ludwigshafen, DE
Elmar Schwarzenbach · Münstermaifeld, DE
Walter Heckmann · Weinheim, DE

Key dates

Filing date	Mar 6, 1998
Grant date	Nov 23, 1999
Priority date	—
Expiry date	Mar 6, 2018

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08J9/20
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

Disclosed are a polymer in the form of particles more than 1 .mu.m in size which contain more than one void, an aqueous dispersion comprising this polymer, processes for the preparation thereof and the use thereof.

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