Michael T Coates

US Patent:

6824872, Nov 30, 2004

Filed:

Apr 23, 2002

Appl. No.:

10/128185

Inventors:

Michael Coates - Moorestown NJ
Wes Demonde - Newtown Square PA
Kurt Davidson - Collegeville PA

Assignee:

Laurel Products LLC - Moorestown NJ

International Classification:

B32B 566

US Classification:

428403, 428407, 428327, 427212, 427222, 427302, 427487, 427521

Abstract:

Fluoropolymer powder particles which are surface treated so as to change the chemical functionality on their surfaces which in turn changes the surfaces characteristics. These characteristics improve the usefulness of these powders and can make them wettable. The surface treated fluoropolymer particles are subject to an atmospheric plasma treatment process, and preferably pretreated with a macromolecular chemical species prior to the atmospheric plasma treatment. The atmospheric plasma treatment enhances adhesion to the powder surface and can also enhance cross-linking of the macromolecular chemical species. The surface treated fluoropolymer powders can be used to form fluoropolymer coatings on various substrates.

US Patent:

7220483, May 22, 2007

Filed:

Jan 16, 2003

Appl. No.:

10/345541

Inventors:

Michael Coates - Moorestown NJ, US
Wes Demonde - Newtown Square PA, US
Kurt Davidson - Collegeville PA, US

Assignee:

Laurel Products, LLC - Moorestown NJ

International Classification:

B32B 5/16

US Classification:

428403, 428407, 428327, 427212, 427222, 427302, 427487, 427521

Abstract:

Fluoropolymer particles are subjected to high energy treatment so as to change the chemical functionality of the particle surfaces and thereby change the surface characteristics of the particles. These characteristics improve the usefulness of these particles and can make them highly dispersible, even in water. The surface treated fluoropolymer particles are subject to a chemical crosslinking process, or alternatively, are subject to a high energy treatment process, and may optionally be pretreated with a macromolecular chemical species prior to the foregoing processes. The high energy treatment can be used to both surface treat the fluoropolymer particles and in some embodiments, may also cause chain scission of the fluoropolymers to thereby reduce the molecular weight of the fluoropolymer particles. The surface treated fluoropolymer particles can be used to form fluoropolymer coatings on various substrates.

US Patent:

7811631, Oct 12, 2010

Filed:

Aug 9, 2006

Appl. No.:

11/463498

Inventors:

Michael Coates - Moorestown NJ, US
Wes Demonde - Newtown Square PA, US
Kurt Davidson - Collegeville PA, US

Assignee:

Laurel Products, LLC - Moorestown NJ

International Classification:

B05D 7/00

US Classification:

427212, 427532

Abstract:

Fluoropolymer particles are subjected to high energy treatment so as to change the chemical functionality of the particle surfaces and thereby change the surface characteristics of the particles. These characteristics improve the usefulness of these particles and can make them highly dispersible, even in water. The surface treated fluoropolymer particles are subject to a chemical crosslinking process, or alternatively, are subject to a high energy treatment process, and may optionally be pretreated with a macromolecular chemical species prior to the foregoing processes. The high energy treatment can be used to both surface treat the fluoropolymer particles and in some embodiments, may also cause chain scission of the fluoropolymers to thereby reduce the molecular weight of the fluoropolymer particles. The surface treated fluoropolymer particles can be used to form fluoropolymer coatings on various substrates.

US Patent:

20050096425, May 5, 2005

Filed:

Sep 22, 2004

Appl. No.:

10/947531

Inventors:

Michael Coates - Moorestown NJ, US
Wes Demonde - Newtown Square PA, US
Kurt Davidson - Collegeville PA, US

International Classification:

C08K003/00

US Classification:

524500000

Abstract:

A process for stabilizing aqueous dispersions of polytetrafluoroethylene (PTFE) or co- and terpolymers of PTFE by adding a macromolecular species directly to the aqueous dispersion. Surprisingly, it has been observed that after the macromolecular species has been added to the dispersion of PTFE or co- and terpolymers of PTFE, the dispersions are very stable, do not readily coagulate, and remain stable even when subjected to freeze/melt cycles. The amount of macromolecular species which may be added may vary from about 0.1 wt. % to about 20.0 wt. %, for example, and suitable macromolecular species include polyacrylic acid (PAA), polyvinylalcohol (PVOH), polyethyleneimies (PEI), and polyethylene glycol (PEG), and others. The present method is particularly effective for stabilizing commercially available “unstabilized” aqueous dispersions of PTFE or co- and terpolymers of PTFE which do not include a surfactant or are substantially free of surfactant.

US Patent:

63132222, Nov 6, 2001

Filed:

Oct 1, 1999

Appl. No.:

9/410796

Inventors:

Shiow-Ching Lin - Lawrenceville NJ
Michael Coates - Morristown NJ
Eli M Pearce - New York NY

Assignee:

Ausimont USA, Inc. - Thorofare NJ

International Classification:

C08L 7908

US Classification:

525180

Abstract:

A miscible polymer blend of superior mechanical strength, hardness and abrasion or mar resistance comprising PVDF and at least one compatible aromatic polyimide. The aromatic polyimide in the miscible polymer blend acts as a nucleating agent for PVDF crystallization. The miscible polymer blend comprising PVDF and aromatic polyimide does not exhibit the negative characteristic of reduced mechanical strength encountered in PVDF and polymer alloys known in the art. The PVDF/aromatic polyimide alloy is prepared by dissolving, separately, PVDF and the aromatic polyimide in a solvent and blending the solutions to form the required composition.