Quang Trong Do

US Patent:

20220213287, Jul 7, 2022

Filed:

Feb 7, 2022

Appl. No.:

17/665685

Inventors:

- Cleveland OH, US
Quang T. Do - Lawrenceville GA, US
Joshua D. Sparks - Macon GA, US

International Classification:

C08J 7/04
C09D 5/02
C09D 139/02
C09D 7/61
C09D 7/45
C09D 7/63

Abstract:

The present invention relates to an anti-tack formulation of high solids content that uses effective amounts of a fine particle size talc, a water soluble cationic polymer, one or more nonionic surfactants, and one or more alkali metal fatty acid soaps. The high solids content anti-tack formulation is capable of being easily shipped to a customer's location and is stable and easily pumped after shipment to a customer. The high solids content anti-tack formulation generates a micro-flocculated pigment dispersion that can be subsequently diluted to a low solids content formulation for use in anti-tack applications, particularly rubber slab dipping applications. The anti-tack formulation provides improved anti-tack performance when coating uncured rubber products.

US Patent:

20200317952, Oct 8, 2020

Filed:

Apr 8, 2019

Appl. No.:

16/377557

Inventors:

- Acworth GA, US
Quang T. Do - Kathleen GA, US
Joshua D. Sparks - Macon GA, US

International Classification:

C09D 139/00
C09D 7/61
C09D 7/63
C09D 7/40
B05D 5/08
B05D 1/18
C08J 7/04

Abstract:

The present invention relates to an anti-tack formulation of high solids content that uses effective amounts of a fine particle size talc, a water soluble cationic polymer, one or more nonionic surfactants, and one or more alkali metal fatty acid soaps. The high solids content anti-tack formulation is capable of being easily shipped to a customer's location and is stable and easily pumped after shipment to a customer. The high solids content anti-tack formulation can be diluted to a low solids content formulation for use in anti-tack applications, particularly rubber slab dipping applications. The anti-tack formulation provides improved anti-tack performance when coating uncured rubber products.

US Patent:

20200061865, Feb 27, 2020

Filed:

Aug 22, 2018

Appl. No.:

16/108325

Inventors:

- Acworth GA, US
Quang T. Do - Kathleen GA, US
Joshua D. Sparks - Macon GA, US

International Classification:

B27K 3/16
B27K 3/12
B27K 3/52
B27K 3/36
C01B 35/10

Abstract:

An aqueous boric acid dispersion includes boric acid particles having a median particle size range of less than 44 microns and a solids content of boric acid particles of 50% or greater. The boric acid dispersion also includes an effective amount of at least one viscosity reducing agent such that the boric acid dispersion has an initial Brookfield 2 rpm static viscosity of about 5,000 to about 25,000 centipoise and a three week aged Brookfield 2 rpm static viscosity of less than 250,000 centipoise, an optional amount of an alkali metal base, wherein the alkali metal base/boric acid mole ratio in the boric acid dispersion ranges from zero to about 0.01; and the balance water. The boric acid dispersion can be used in the manufacture of wood products like oriented strand board, medium density fiberboard, and particle board as well as to coat wood products to improve their fire retardancy.