Johanna C Garcia

US Patent:

20200332067, Oct 22, 2020

Filed:

Dec 20, 2018

Appl. No.:

16/955196

Inventors:

- Omaha NE, US
Johanna L. GARCIA DE VISICARO - Lake Hopatcong NJ, US
Luz Clarena SHAVEL - East Stroudsburg PA, US
Robert SHEERIN - North Caldwell NJ, US

Assignee:

COLUMBIA INSURANCE CO. - Omaha NE

International Classification:

C08G 77/20
C08F 212/08
C08F 220/18
C08F 220/56
C08G 77/38
C09D 183/08
C09D 133/26
C09D 133/08

Abstract:

A siloxane-modified latex binder includes a polymerization product of a monomer or a mixture of monomers for producing a latex polymer and a non-hydrolyzable siloxane. The non-hydrolyzable siloxane is represented by Formula (I) : wherein: R, R, R, R, R, R, R, and Rare independently hydrogen, alkyl, —O-alkyl, —OH, —S-alkyl, —SH, amino, amido, epoxy, carboxyl, acrylate, (meth)acrylate, cycloalkyl, aryl, alkalyl, polyether, alkenyl, or alkynyl; and n is an integer from 0 to about 300; provided that at least one of R, R, R, R, R, R, R, and Ris an alkenyl or alkynyl.

US Patent:

20170321078, Nov 9, 2017

Filed:

May 6, 2016

Appl. No.:

15/147938

Inventors:

- Omaha NE, US
Glenn Cooper - East Hanover NJ, US
Robert Sheerin - North Caldwell NJ, US
Johanna Garcia - Lake Hopatcong NJ, US
Clarena Shavel - East Stroudsburg PA, US

International Classification:

C09D 133/08
C09D 7/12
C09D 7/12
C09D 133/14
C09D 5/02

Abstract:

The present invention is directed to an aqueous architectural composition comprising a low Tg (less than about −10 C. and higher than about −50 C.) acrylic emulsion polymer with at least one cross-linkable moiety, and solid polyutherane (PU) or polybutylacrylate microspheres having a mean weight diameter of less than about 40 microns and a Tg of less than about 0 C., wherein the solid PU spheres make up about 10% to about 20% by weight of the composition. The solid acrylic polymer without water and the PU spheres make up about 30% to about 40% by weight of the aqueous composition. A dried paint film formed by the inventive aqueous architectural composition can withstand at least about 500 cycles on the scrub test, and a gloss value at 60 of less than about 2.5 GU.