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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 9012561 B1

PDFFull Text
Date of Patent:
Apr. 21, 2015

Filed:

Feb. 03, 2010

Aqueous compositions comprising a blend of emulsion copolymers

Applicants:

Zhenwen Fu, Lansdale, PA (US);

Andrew Hejl, North Wales, PA (US);

Aurelia C. Sheppard, Newtown, PA (US);

Andrew J. Swartz, Fleetwood, PA (US);

Inventors:

Zhenwen Fu, Lansdale, PA (US);

Andrew Hejl, North Wales, PA (US);

Aurelia C. Sheppard, Newtown, PA (US);

Andrew J. Swartz, Fleetwood, PA (US);

Assignee:

Rohm and Haas Company, Philadelphia, PA (US);

Attorney:

Reid S. Willis

Primary Examiner:

Patrick Niland

Int. Cl.
CPC ...
C04B 24/26 (2006.01); C08F 283/00 (2006.01); C08G 18/42 (2006.01); C08J 3/00 (2006.01); C08J 3/02 (2006.01); C08K 3/20 (2006.01); C08K 5/00 (2006.01); C09B 67/00 (2006.01); C09D 5/02 (2006.01); A61L 15/62 (2006.01); B32B 27/28 (2006.01); C08F 236/12 (2006.01); C08G 18/28 (2006.01); C08K 5/06 (2006.01); C08K 5/09 (2006.01); C08K 5/10 (2006.01); C08K 5/11 (2006.01); C08K 5/12 (2006.01); C08K 5/52 (2006.01); C08K 5/101 (2006.01); C08L 91/00 (2006.01); C09D 11/02 (2014.01); C09J 7/02 (2006.01); H01B 3/30 (2006.01); C09D 133/08 (2006.01); C08L 33/06 (2006.01); C08L 33/08 (2006.01); C08L 33/10 (2006.01); C08L 33/12 (2006.01); C08L 35/00 (2006.01); C08L 35/06 (2006.01); C09D 133/06 (2006.01); C09D 133/12 (2006.01); C09D 151/00 (2006.01); C09D 175/04 (2006.01); C08K 5/20 (2006.01); C08K 5/521 (2006.01);
U.S. Cl.
CPC ...
C09D 133/08 (2013.01); C08K 5/10 (2013.01); C08K 5/20 (2013.01); C08K 5/521 (2013.01); C08L 33/06 (2013.01); C08L 33/08 (2013.01); C08L 33/10 (2013.01); C08L 33/12 (2013.01); C08L 35/00 (2013.01); C08L 35/06 (2013.01); C08L 2205/02 (2013.01); C09D 133/06 (2013.01); C09D 133/12 (2013.01); C09D 151/003 (2013.01); C09D 175/04 (2013.01);
Abstract

The present invention provides compositions that enable excellent early hardness development in coating applications, the compositions comprising a blend of one or more acrylic emulsion copolymer, pA, having a Tg of 20° C. or higher, and one or more acrylic emulsion copolymer, pB, having a Tg at least 15° C. lower than that of pA, together with one or more additive chosen from a coalescent having a normal boiling point no greater than 300° C., a naturally derived plasticizer, and mixtures thereof. The compositions may be ambient curable.

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