Michael D Rhodes

US Patent:

20160152852, Jun 2, 2016

Filed:

Feb 3, 2016

Appl. No.:

15/014069

Inventors:

- Philadelphia PA, US
Pu Luo - King Of Prussia PA, US
Michael Rhodes - Chalfont PA, US
Yogesh Tiwary - Bangalore, IN

International Classification:

C09D 17/00

Abstract:

The present invention relates to a pre-paint composite comprising an aqueous slurry of TiOparticles and a polymeric binder, wherein from 35 to 90 weight percent of the polymeric binder is attached to the TiOparticles, based on the weight of polymeric binder in the pre-paint composite. The pre-composite of the present invention is useful in paint compositions, particularly those that require freeze-thaw stability

US Patent:

20150141546, May 21, 2015

Filed:

Nov 10, 2014

Appl. No.:

14/536732

Inventors:

- Philadelphia PA, US
Pu Luo - King Of Prussia PA, US
Michael Rhodes - Chalfont PA, US
Yogesh Tiwary - Hatfield PA, US

International Classification:

C09D 5/02
C09D 141/00

US Classification:

523122, 524521

Abstract:

The present invention relates to a pre-paint composite comprising an aqueous slurry of TiOparticles and attached and unattached polymeric binder, and a sufficient amount of a secondary alcohol ethoxylate of the formula CHO(CHCHO)H to give 35 to 90 weight percent attachment of polymeric binder to the TiOparticles, based on the weight of total polymeric binder in the pre-paint composite, where x is from 15 to 50; and the O(CHCHO)H group is bonded to a CH group on the CHchain. The present invention also relates to a coatings composition containing the composite as well as a process for preparing the pre-paint composite and the coatings composition.

US Patent:

20150079397, Mar 19, 2015

Filed:

Sep 11, 2014

Appl. No.:

14/483796

Inventors:

- Philadelphia PA, US
James Keith Bardman - Green Lane PA, US
Michele Heffner - Chalfont PA, US
David G. Kelly - Ambler PA, US
Michael Rhodes - Chalfont PA, US

International Classification:

C09D 131/04
C08K 3/22

US Classification:

428407, 524460

Abstract:

A process for encapsulating TiOparticles by polymerizing sodium styrene sulfonate with a redox initiator system; then polymerizing a first monomer mixture comprising at least 60 wt % acrylic monomers; then polymerizing a second monomer mixture comprising at least 40 wt % vinyl ester monomers.