James W Rawlins

US Patent:

7767778, Aug 3, 2010

Filed:

Mar 30, 2005

Appl. No.:

11/094589

Inventors:

James Rawlins - Petal MS, US
Michael Grahl - Leverkusen, DE
Dorota Greszta-Franz - Erkrath, DE
Hans-Josef Laas - Bergisch Gladbach, DE
Reinhard Halpaap - Odenthal, DE

Assignee:

Bayer MaterialScience AG - Leverkusen

International Classification:

C08G 18/80
C08G 18/22
C08G 18/42
C08G 18/58

US Classification:

528 45, 528 52, 528 55, 528 65, 528272

Abstract:

The present invention relates to polyurethane powder coating compositions that do not split off blocking agents and have a low stoving temperature. The powder coating compositions contain a hydroxyl functional binder component having a content of carboxyl groups of from 0. 5 to 2. 0 wt. %, a polyaddition compound, at least one zinc compound as a hardening catalyst, and a compound reactive to carboxyl groups.

US Patent:

20050004320, Jan 6, 2005

Filed:

Jun 21, 2004

Appl. No.:

10/873081

Inventors:

Hans-Josef Laas - Bergisch Gladbach, DE
Christoph Gurtler - Koln, DE
Reinhard Halpaap - Odenthal, DE
Michael Grahl - Leverkusen, DE
Peter Thometzek - Stuttgart, DE
James Rawlins - Petal MS, US

International Classification:

C08F020/02

US Classification:

525329700

Abstract:

A process for preparing polyisocyanate-modified polycarboxylic acids by conversion of anhydride-group-free polycarboxylic acids with isocyanate-functional compounds. The process includes reacting A) an anhydride-group-free polycarboxylic-acid component with B) an isocyanate-functional component having an (average) isocyanate functionality of at least 1.8, at an equivalent ratio of carboxylic acid groups to isocyanate groups of from 1.2:1 to 120:1. The polyisocyanate-modified polycarboxylic acids are solid below 40 C. and liquid above 130 C., and have an average carboxylic acid functionality of at least 1.8, a content of free carboxylic acid groups of from 4.0 wt. % to 80.0 wt. % and a content of amide groups of from 0.4 wt. % to 32.5 wt. %.

US Patent:

20080234406, Sep 25, 2008

Filed:

Mar 13, 2008

Appl. No.:

12/047450

Inventors:

James W. Rawlins - Petal MS, US
Huaxiang Yang - Hattiesburg MS, US
Sharathkumar K. Mendon - Hattiesburg MS, US

International Classification:

C08G 18/81
C08K 3/20

US Classification:

523201, 528 45

Abstract:

The present invention provides a nanocapsule of a blocked isocyanate encapsulated within a polymeric nanosphere. In one aspect, the polymeric nanosphere is functionalized. Free isocyanate functionality is released upon thermal annealing or UV exposure of the nanospheres containing the blocked isocyanate. This present invention also provides a novel method for encapsulating isocyanates in aqueous media. In one aspect, the method comprises miniemulsion polymerization. The thermally or UV deblocked isocyanate can be used as an active functional group for many potential applications.

US Patent:

20100089287, Apr 15, 2010

Filed:

Sep 25, 2009

Appl. No.:

12/586739

Inventors:

Shelby F. Thames - Hattiesburg MS, US
James W. Rawlins - Petal MS, US
Richard C. Ferguson - Hattiesburg MS, US
Sharathkumar K. Mendon - Hattiesburg MS, US

International Classification:

C09J 189/00
C09J 197/00

US Classification:

1061371, 1061578

Abstract:

The present invention provides a soy protein-based adhesive composition and a process for making the composition that may be used in particleboards and similar wood composite systems and that is formed from an aqueous mixture of calcium oxide, pine oil, protein, lignin, and acid. The preferred protein is an enzymatically-modified soy protein and the preferred enzyme is urease.

US Patent:

20100210745, Aug 19, 2010

Filed:

Jan 29, 2010

Appl. No.:

12/696651

Inventors:

C. Steven McDaniel - Austin TX, US
Melinda E. Wales - Bryan TX, US
James Rawlins - Hattiesburg MS, US
Pirro Cipi - Hattiesburg MS, US
Eric Williams - Petal MS, US
Juan Carlo Carvajal - Austin TX, US

Assignee:

REACTIVE SURFACES, LTD. - Austin TX

International Classification:

C09D 7/12
C09J 11/08

US Classification:

521 55, 524 17

Abstract:

Disclosed herein are polymeric materials such as a coating, a plastic, a laminate, a composite, an elastomer, an adhesive, or a sealant; a surface treatment such as a textile finish or a wax; a filler for such a polymeric material or a surface treatment that includes an enzyme such as an esterase (e.g., a lipolytic enzyme, a sulfuric ester hydrolase, an organophosphorus compound degradation enzyme), an enzyme (e.g., a lysozyme, a lytic transglycosylase) that degrades a cell wall and/or a cell membrane component, a biocidal or biostatic peotide, and/or a peptidase. Also disclosed herein are methods of altering a material's property such as service life, flexability, or rigidity, by incorporation of an enzyme into a material capable of being chemically crosslinked by the activity of a lipolytic enzyme, a hydrolase, and/or a urease.

US Patent:

20110250626, Oct 13, 2011

Filed:

Apr 12, 2011

Appl. No.:

13/085061

Inventors:

Eric B. Williams - Petal MS, US
Dwaine Braasch - Hattiesburg MS, US
James W. Rawlins - Petal MS, US
Melinda Wales - Bryan TX, US
C. Steven McDaniel - Austin TX, US

Assignee:

REACTIVE SURFACES, LTD. - Austin TX

International Classification:

C12Q 1/527
C09D 5/14
C09D 189/00
C09D 7/00
C12Q 1/00
C12Q 1/34

US Classification:

435 18, 435 4, 1061241, 106 4, 524 17, 106 1505

Abstract:

Disclosed herein are materials such as a coating, comprising a lipolytic enzyme or organophosphrous compound degrading enzyme. Also disclosed herein are methods of visually detecting enzyme activity in a coating by contacting the coating with a substrate of an enzyme and a visual indicator that changes appearance upon production of a product of enzyme activity on a tack-free coating surface.

US Patent:

61144894, Sep 5, 2000

Filed:

Mar 27, 1997

Appl. No.:

8/826192

Inventors:

Richard Vicari - Corpus Christi TX
Olan Stanley Fruchey - Corpus Christi TX
Kathleen Nelson Juneau - Corpus Christi TX
Shelby Freland Thames - Hattiesburg MS
James Wayne Rawlins - Hattiesburg MS

Assignee:

Herberts GmbH - Cologne

International Classification:

C08G 1842

US Classification:

528 84

Abstract:

Novel powder coating compositions containing reactive hyperbranched polymers are disclosed and claimed. Preferred embodiments include powder coating compositions formed from hyperbranched polyesters having terminal hydroxy, carboxy, epoxy, and isocyanate groups. Preferred hyperbranched polyesters are formed from. alpha. ,. alpha. -bis-(hydroxymethyl)-propionic acid, which act either as crosslinkers, adhesion promotors, or flow and leveling agents. A process for the synthesis of powder coating compositions is also disclosed which involves (a) self condensation of one or more of the multifunctional monomers to form the hyperbranched polymer, optionally, in the presence of suitable reactive end-capping moieties which are described herein; (b) melt blending of the hyperbranched polymer with suitable amounts of one or more of polyesters, epoxy resins, blocked urethane resins, or acrylic resins, a crosslinker, and one or more of suitable additional ingredients including degassers or flow and leveling agents, to form a flake; and (c) grinding and sieving of the flake to form the powder coating composition. These compositions exhibit improved flow and curing properties. These compositions can therefore be formed into thin films and can be cured at low temperatures to form smooth surfaces.

US Patent:

20170368233, Dec 28, 2017

Filed:

Sep 11, 2017

Appl. No.:

15/700446

Inventors:

- Mansfield MA, US
Brent MARSDEN - Reading MA, US
Robert F. ALMEIDA - Norton MA, US
Eric W. DAHL - Ann Arbor MI, US
James W. RAWLINS - Hattiesburg MS, US
Sharathkumar K. MENDON - Hattiesburg MS, US

International Classification:

A61L 29/08
A61L 27/54
A61L 17/14
A61L 31/10
A61L 31/16
A61L 27/34
A61L 29/16

Abstract:

Antimicrobial formulations and coatings for medical devices and processes therefor are disclosed. The formulations include at least one water permeable polymer with at least one antimicrobial agent in a liquid medium and are prepared by wet milling the components and can form antimicrobial coatings having uniformly dispersed particles having an average size of no greater than 50 microns.