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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.:

US 4840989 B1

PDFFull Text
Date of Patent:
Jun. 20, 1989

Filed:

Sep. 26, 1988

Copolymer made from n-vinylamides and perfluoroalkyl group-containing,

Applicant:
Inventors:

Holger Ohst, Aachen, DE;

Wolfgang Podszun, Cologne, DE;

Carlhans Suling, Odenthal, DE;

John Goossens, Leverkusen, DE;

Gunther Penners, Leverkusen, DE;

Assignee:

Bayer Aktiengesellschaft, Leverkusen, DE;

Attorney:

Sprung Horn Kramer & Woods

Primary Examiner:

Joseph L Schofer

Assistant Examiner:

N Sarofim

Int. Cl.
CPC ...
C08L / ; C08F / ;
U.S. Cl.
CPC ...
524544 ; 524545 ; 526243 ;
Abstract

The invention relates to copolymers containing 0.01 to 35 mole-% relative to the total monomer composition, of one or more polymerized perfluoroalkyl group-containing monomer units, 55 to 99.99 mole-% of one or more polymerized N-vinylamide monomer units, and 0 to 10 mole-% of one or more further comonomers, a process for the preparation of the copolymers, and their use as emulsifiers and dispersants in aqueous systems.

Find Patent Forward Citations

Ohst, Holger. (1989). Copolymer made from n-vinylamides and perfluoroalkyl group-containing, (U.S. Patent No. 4840989). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4840989

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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