logo

For the Inventor, By the Inventor

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 9096756 B1

PDFFull Text
Expired
Date of Patent:
Aug. 04, 2015

Filed:

Dec. 24, 2013

Process for obtaining low free monomer levels in a block copolymer emulsion prepared with (reverse) iodine transfer polymerisation

Applicant:

Dsm Ip Assets B.v., Heerlen, NL;

Inventors:

Tijs Nabuurs, Waalwijk, NL;

Gerardus Cornelis Overbeek, Waalwijk, NL;

Michael Arnoldus Jacobus Schellekens, Waalwijk, NL;

Danny Visser, Waalwijk, NL;

Frank Vaes, Waalwijk, NL;

Assignee:

DSM IP ASSETS B.V., Heerlen, NL;

Attorney:

Nixon & Vanderhye P.C.

Primary Examiner:

Kelechi Egwim

Int. Cl.
CPC ...
C09D 153/00 (2006.01); C09J 153/00 (2006.01); C08L 53/00 (2006.01); C08F 293/00 (2006.01);
U.S. Cl.
CPC ...
C08L 53/00 (2013.01); C08F 293/00 (2013.01); C08F 293/005 (2013.01); C09D 153/00 (2013.01); C09J 153/00 (2013.01); C08F 2438/00 (2013.01);
Abstract

A process for obtaining an aqueous emulsion comprising a block copolymer by the solution polymerisation of vinyl monomers to obtain block [B] in the presence of a) a radical precursor; and b) an iodine atom containing block [A]; where block [A] and [B] together comprise 0 to 2 wt % of methacrylic acid; where block [A] and block [B] together comprise ≧2.5 wt % of vinyl monomers bearing ionic or potentially ionic water-dispersing groups not including methacrylic acid; and performing a post polymerisation reaction on the block copolymer emulsion obtained in step II; and wherein said aqueous emulsion has a free vinyl monomer level <1000 ppm when having a solids content of ≧20 wt %.

Find Patent Forward Citations

Nabuurs, Tijs. (2015). Process for obtaining low free monomer levels in a block copolymer emulsion prepared with (reverse) iodine transfer polymerisation (U.S. Patent No. 9096756). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9096756

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

Loading…