Douglas A Fox

US Patent:

20210253743, Aug 19, 2021

Filed:

Apr 22, 2021

Appl. No.:

17/237501

Inventors:

Douglas FOX - Reston VA, US

Assignee:

AMERICAN UNIVERSITY - Washington DC

International Classification:

C08B 15/04
B01J 39/04
C08L 1/04
C09D 101/04
B05D 1/30

Abstract:

The present application relates to cellulose nanocrystals and other anionic carbohydrates and methods of preparation thereof. Specifically, in certain embodiments, the cellulose nanocrystals are modified using ion exchange technology to yield thermally stable or task-specific, dispersible cellulose nanocrystals.

US Patent:

20170321068, Nov 9, 2017

Filed:

May 23, 2017

Appl. No.:

15/602340

Inventors:

Mauro Zammarano - Gaithersburg MD, US
Douglas Fox - Reston VA, US
Philipp Grützmacher - Rathsberg, DE
Rick Davis - Ijamsville MD, US

International Classification:

C09D 5/18
C09D 7/12
C08K 5/17
C08K 3/28
C09D 165/00
C08L 65/00
C08K 5/52

Abstract:

A flame retardant coating composition comprising poly(dopamine) and either tris(hydroxymethyl)aminomethane) or gaseous ammonia, as well as an article comprising a substrate and the flame retardant coating composition, is provided. In various embodiments, the poly(dopamine) is substantially water insoluble. The coating composition can further comprise at least one additional component selected from the group consisting of melamine, an anionic clay, a phosphorus-containing compound, an amine-containing compound, aluminosilicates, silicon oxides, and combinations thereof. Also provided are methods for forming the flame retardant coating composition and methods for increasing flame retardant properties of a substrate.

US Patent:

20170037155, Feb 9, 2017

Filed:

Aug 5, 2016

Appl. No.:

15/229738

Inventors:

Douglas Fox - Reston VA, US

Assignee:

AMERICAN UNIVERSITY - Washington DC

International Classification:

C08B 15/04
B05D 1/30
C09D 101/04
B01J 39/04
C08L 1/04

Abstract:

The present application relates to cellulose nanocrystals and other anionic carbohydrates and methods of preparation thereof. Specifically, in certain embodiments, the cellulose nanocrystals are modified using ion exchange technology to yield thermally stable or task-specific, dispersible cellulose nanocrystals.

US Patent:

20150073071, Mar 12, 2015

Filed:

Jul 21, 2014

Appl. No.:

14/336581

Inventors:

Mauro Zammarano - Gaithersburg MD, US
Douglas Fox - Reston VA, US
Philipp Grützmacher - Rathsberg, DE
Rick Davis - Ijamsville MD, US

International Classification:

C09D 5/18
C08K 5/52
C08K 5/17
C08K 3/28
C09D 7/12

US Classification:

524 30, 524186, 524428

Abstract:

A flame retardant coating composition comprising poly(dopamine) and either tris(hydroxymethyl)aminomethane) or gaseous ammonia, as well as an article comprising a substrate and the flame retardant coating composition, is provided. In various embodiments, the poly(dopamine) is substantially water insoluble. The coating composition can further comprise at least one additional component selected from the group consisting of melamine, an anionic clay, a phosphorus-containing compound, an amine-containing compound, aluminosilicates, silicon oxides, and combinations thereof. Also provided are methods for forming the flame retardant coating composition and methods for increasing flame retardant properties of a substrate.