Kevin G Suddaby

US Patent:

6624274, Sep 23, 2003

Filed:

Nov 9, 2000

Appl. No.:

09/711225

Inventors:

Kevin Grant Suddaby - Morrisville NC

Assignee:

Dow Reichhold Specialty Latex LLC - Research Triangle Park NC

International Classification:

C08F12068

US Classification:

526318, 52631843, 526325, 5263471, 526335, 5263182, 5263183, 526319

Abstract:

The present invention provides a polymer composition capable of being cured or crosslinked in the absence or without the use of conventional sulfur and accelerator cure systems. The polymer is formed from olefinically unsaturated monomers and includes at least one conjugated diene monomer. Such polymer includes additional functionality provided by a chelating monomer.

US Patent:

20020117815, Aug 29, 2002

Filed:

Dec 22, 2000

Appl. No.:

09/747905

Inventors:

Kevin Suddaby - Morrisville NC, US
Venkataram Krishnan - Cary NC, US

International Classification:

F16J015/08

US Classification:

277/650000

Abstract:

The present invention provides a gasket using a polymer composition capable of being cured or crosslinked in the absence or without the use of conventional cure systems. The polymer is formed from olefinically unsaturated monomers. Such polymer includes additional functionality provided by a chelating monomer. Methods of making gaskets or other articles of manufacture either using a beater additions process or a saturation process are also provided.

US Patent:

20070100081, May 3, 2007

Filed:

Nov 3, 2005

Appl. No.:

11/266027

Inventors:

Kevin Suddaby - Research Triangle Park NC, US

International Classification:

C08F 136/00

US Classification:

525331900

Abstract:

The present invention provides a polymer composition capable of being cured or crosslinked in the absence of conventional sulfur and accelerator cure systems. The polymer is formed from olefinically unsaturated monomers and includes at least one conjugated diene monomer. Such polymer includes additional functionality provided by a monomer which may crosslink via enamine formation, condensation with aldehydes, Michael addition, alkylation with alkyl halides, reaction with diisocyanates, or reaction with melamines. By these same mechanisms, the polymer may additionally or alternatively be reacted with a substrate, such as a fiber, to bind the polymer to the substrate. Further, the polymer may be reacted with a molecule, such as a plasticizer, dye, indicator, surface modifier, or antimicrobial moiety in order to bind the molecule to the polymer. Methods of making articles of manufacture that comprise the polymer compositions of the invention are also disclosed.

US Patent:

20090013446, Jan 15, 2009

Filed:

Jul 10, 2008

Appl. No.:

12/171017

Inventors:

Kevin Grant Suddaby - Morrisville NC, US
Neil Douglas Redpath - Raleigh NC, US
Alicia Lee Sellers - Durham NC, US

Assignee:

Dow Reichhold Specialty Latex, LLC - Durham NC

International Classification:

A41D 19/00
C08F 136/06
B32B 27/32

US Classification:

2167, 526335, 428220

Abstract:

A test for determining whether an elastomeric article has a desired ratio of strength to comfort, i.e., a strength-comfort index, is disclosed. Methods for preparing strong, soft, and thin articles from synthetic latexes, to optimize the strength and comfort of the articles, are also disclosed. Using this index, and, optionally, comparing the results with those one obtained using natural rubber, one can determine whether an article of manufacture can be prepared from synthetic elastomers and still have optimal properties (i.e., strength and comfort), particularly as compared to a similar article prepared from natural rubber. The strength of an article is directly related to the force required to break a tensile specimen of the sample and thus the tensile strength of the article. A measure of the strength of an article relative to its resistance to deformation is given by the following ratio:where Tis the tensile strength of the article, Tis the tensile stress at x % elongation, tis the thickness of the unstrained specimen, and T, T, and tare all measured following ASTM D-412. This ratio is defined herein as the strength-comfort index.

US Patent:

20090292081, Nov 26, 2009

Filed:

Dec 1, 2008

Appl. No.:

12/325469

Inventors:

Kevin Grant Suddaby - Morrisville NC, US

Assignee:

Bangkok Synthetics Co., Ltd. - Bangkok

International Classification:

C08F 8/42

US Classification:

525370

Abstract:

Compositions capable of being cured and imparting durability, in the absence or without the use of conventional sulfur-based cure systems, are disclosed. The compositions include a carboxylated base polymer and an aluminum compound, wherein the aluminum compound comprises a retarding anion. The compositions can be used to form elastomeric articles of manufacture such as gloves, condoms, and finger cots, and as binders and coatings. Retarding anions are those which require time to dissociate from the aluminum ion, thereby delaying the crosslinking of the carboxylated polymer. The aluminum compounds can be used to manufacture gloves from aqueous dispersions of the carboxylated polymers, including, for example, carboxylated nitrile latexes, in a coagulant dip process.

US Patent:

6369154, Apr 9, 2002

Filed:

Jul 26, 1999

Appl. No.:

09/360902

Inventors:

Kevin Grant Suddaby - Morrisville NC

Assignee:

Reichhold, Inc. - Durham NC

International Classification:

C08L 3306

US Classification:

524560

Abstract:

The present invention provides a polymer latex composition. The composition includes from about 35 to about 80 weight percent of aliphatic conjugated diene monomer, from about 10 to about 65 weight percent of unsaturated ester or amide monomer, and above 0 to about 15 weight percent of unsaturated acid monomer.