The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 15, 1994
Filed:
Dec. 21, 1992
Applicant:
Inventors:
Assignee:
Huels Aktiengesellschaft, Marl, DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08J / ;
U.S. Cl.
CPC ...
524457 ; 524755 ; 524762 ;
Abstract
The invention provides a process for the preparation of large-particle, aqueous plastic dispersions, which permits targeted adjustment of particle size. The process comprises a system which controls the particle size and comprises the step of polymerizing a monomer in the presence of an anionic emulsifier; a substantially non-branched, nonionic, water-soluble polymer auxiliary; and alkali metal and/or ammonium ions not bonded to emulsifier. The polymer auxiliary can be prepared reproducibly with regard to its agglomerating effect.