Stuart R Kerr

US Patent:

20050003216, Jan 6, 2005

Filed:

Jun 29, 2004

Appl. No.:

10/882695

Inventors:

Jean-Marc Frances - Meyzieu, FR
Michael Radl - Rock Hill SC, US
Stuart Kerr - Charlotte NC, US
Jeffrey Hoover - Rock Hill SC, US
James Ellison - Chester SC, US

International Classification:

B32B009/04
C08L083/04
C08F002/46

US Classification:

428447000, 524860000, 522006000

Abstract:

The invention is directed to a polymeric microparticle containing silicone release composition having improved slip/shear, anti-block, transfer, and lower release properties. The silicone release composition may be formed of thermal or radiation cured solventless silicone release compositions. The silicone release composition may also be formed of a UV-cationic silicone release composition. The polymeric microparticles are preferably polymeric microspheres. The invention is further directed to the use of such microparticle containing silicone release compositions to coat a substrate, and release coated substrates formed thereof.

US Patent:

57031371, Dec 30, 1997

Filed:

Mar 14, 1996

Appl. No.:

8/616170

Inventors:

Christian Priou - Villeurbanne, FR
Stuart Kerr - Rock Hill SC

Assignee:

Rhone-Poulenc Chimie - Courbevoie Cedex

International Classification:

C08L 8306
C08F 250

US Classification:

522 25

Abstract:

The present invention relates to initiators for the polymerization and/or crosslinking, cationically and under photochemical and/or thermal activation and/or activation by a beam of electrons, of monomers and/or polymers containing organofunctional groups. The said initiators are of the type comprising an onium salt of an element from groups 15 to 17 of the Periodic Table (Chem & Eng News, Vol 63, N5, 26, of 4 Feb. 1985) and they are characterized in that they contain at least one polymerization and/or crosslinking accelerator chosen from. alpha. -hydroxylated carboxylic acid esters such as, for example, lactic acid esters. Another subject of the invention is compositions based on at least one cationically crosslinkable polyorganosiloxane and on at least one initiator.

US Patent:

59730200, Oct 26, 1999

Filed:

Jan 6, 1998

Appl. No.:

9/003397

Inventors:

Stuart R. Kerr - Rock Hill SC
Reeshemah L. Beaty - Chester SC

Assignee:

Rhodia Inc. - Cranbury NJ

International Classification:

C08F 246

US Classification:

522 25

Abstract:

The present invention relates to a photoinitiator composition that can be used to initiate polymerization upon exposure to radiation. The said composition includes both a composition which yields cations upon exposure to actinic radiation, such as an iodonium borate initiator and a stabilizing amino agent. The amino agent is a secondary or tertiary amine having the general formula (VIII), a sterically arranged cyclic amine having the general formula (IX), or an amine consisting of groups that have the general formulas (VIII) and (IX) and that are interconnected. ##STR1## The compositions are particularly useful when used in conjunction with polyorganosiloxane monomers and when exposed to ultraviolet radiation.

US Patent:

58662618, Feb 2, 1999

Filed:

Dec 20, 1996

Appl. No.:

8/772342

Inventors:

Stuart R. Kerr - Rock Hill SC
Reeshemah Beaty - Chester SC

Assignee:

Rhodia Inc. - Cranbury NJ

International Classification:

B32B 904

US Classification:

428447

Abstract:

A composition of matter comprising: (a) about 60 to about 99 parts by weight of a curable epoxypolyorganosiloxane; (b) about 1 to about 40 parts by weight of a crosslinkable silicone hydride resin having no epoxy functionality; and (c) about 0. 1 to about 5 parts by weight of an curing agent, which, upon exposure to actinic radiation is capable of curing components (a) and (b); wherein the total amount of components (a) and (b) is 100 parts by weight and wherein said composition demonstrates surface release properties when coated and cured onto a substrate is provided. The composition is particularly useful in articles of manufacture where release properties are desired.