Terri A Cunningham

US Patent:

6933415, Aug 23, 2005

Filed:

Jun 6, 2002

Appl. No.:

10/163953

Inventors:

Terri A. Cunningham - Concord NC, US
Li Zhuo - Fort Mill SC, US

Assignee:

BASF AG - Ludwigshafen

International Classification:

C07C041/05
C07C043/15

US Classification:

568616, 568606, 568654, 524425, 524492, 524497

Abstract:

The present invention is an aqueous coating composition having excellent freeze-thaw stability and a low-VOC content. The aqueous coating composition of the invention includes at least one latex polymer derived from at least one monomer and at least one polymerizable alkoxylated surfactant, at least one pigment, and water. In accordance with the invention, less than 3. 0% by weight of anti-freeze agents based on the total weight of the aqueous coating composition are used in the composition. The present invention also includes a method of preparing an aqueous coating composition such as a latex paint including the above components.

US Patent:

7612126, Nov 3, 2009

Filed:

Dec 1, 2004

Appl. No.:

10/580250

Inventors:

Konrad Roschmann - Ludwigshafen-Edigheim, DE
Joerg Leuninger - Mainz, DE
Rolf Dersch - Neustadt, DE
Li Zhuo - Fort Mill SC, US
Terri A. Cunningham - Concord NC, US

Assignee:

BASF Aktiengesellschaft - Ludwigshafen

International Classification:

C08L 83/00

US Classification:

523201, 524515, 524523, 524529, 524533

Abstract:

The present invention relates to an aqueous coating composition having excellent freeze-thaw stability and a low-VOC content, comprising a multi-stage polymer dispersion comprising (a) an inner phase comprising at least one latex polymer derived from at least one monomer and at least one polymerizable alkoxylated surfactant having the structure: R—Rwherein R1 is an allyl group selected from the group consisting of CH—CH═CH— and CH═CH—CH—, or an acrylic group and Ris a radical comprising at least two carbon atoms and at least one oxyethylene or oxypropylene unit; (b) an outer phase having a glass transition temperature of from 30 C. to 110 C. containing at least one ethylenic unsaturated monomer (c) at least one pigment; (d) water; and (e) less than 3. 0% by weight based on the total weight of the aqueous coating composition of anti-freeze agents.

US Patent:

20060052502, Mar 9, 2006

Filed:

May 13, 2003

Appl. No.:

10/515184

Inventors:

Terri Cunningham - Concord NC, US
Li Zhuo - Fort Mill SC, US
Konrad Roschmann - Ludwigshafen-Edigheim, DE
Joerg Leuninger - Mainz, DE
Rolf Dersch - Neustadt, DE

Assignee:

BASF Corporation - mount Olive NJ

International Classification:

C08K 3/26

US Classification:

524425000, 524435000, 524445000

Abstract:

The present invention is an aqueous coating composition having excellent freeze-thaw stability and a low-VOC content. The aqueous coating composition of the invention includes at least one latex polymer derived from at least one monomer and at least one polymerizable alkoxylated surfactant, at least one pigment, and water. In accordance with the invention, less than 3.0% by weight of anti-freeze agents based on the total weight of the aqueous coating composition are used in the composition. The present invention also includes a method of preparing an aqueous coating composition such as a latex paint including the above components.