Timothy J Mitchell

US Patent:

7432338, Oct 7, 2008

Filed:

Dec 17, 2003

Appl. No.:

10/538680

Inventors:

Brian Douglas Chapman - Midland MI, US
Loren Dean Durfee - Midland MI, US
Timothy Paul Mitchell - Clio MI, US
James Steven Tonge - Sanford MI, US
Paul Cornelius Vandort - Sanford MI, US

Assignee:

Dow Corning Corporation - Midland MI

International Classification:

C08G 77/12
C08G 77/20
C08G 77/04

US Classification:

528 31, 528 32, 528 33

Abstract:

This invention relates to a method comprising (1) heating in the presence of a catalyst a mixture comprising (i) at least one organohydrogensilicon compound containing at least one silicon-bonded hydrogen atom per molecule or a reaction product obtained by mixing in the presence of a platinum group metal-containing catalyst at least one organohydrogensilicon compound containing at least one silicon-bonded hydrogen atom per molecule and at least one compound having at least one aliphatic unsaturation, (ii) at least one endblocker, and optionally (iii) at least one organosiloxane chosen from a hydrolyzate or a cyclosiloxane, so to cause polymerization of components (i), (ii), and optionally (iii) to form silicon-bonded hydrogen containing branched polymers.

US Patent:

7449536, Nov 11, 2008

Filed:

Dec 17, 2003

Appl. No.:

10/538682

Inventors:

Brian Douglas Chapman - Midland MI, US
Loren Dean Durfee - Midland MI, US
Timothy Paul Mitchell - Clio MI, US
James Steven Tonge - Sanford MI, US
Paul Cornelius Vandort - Sanford MI, US

Assignee:

Dow Corning Corporation - Midland MI

International Classification:

C08G 77/00
C08G 77/04
C08G 77/12
C08G 77/08
C08G 77/06

US Classification:

528 10, 528 31, 528 37, 528 14

Abstract:

A method comprising heating in the presence of a catalyst, a mixture comprising (i) a reaction product obtained by mixing in the presence of a platinum group metal-containing catalyst at least one organohydrogensilicon compound containing at least one silicon-bonded hydrogen atom per molecule and at least one compound having at least one aliphatic unsaturation; (ii) at least one endblocker, and optionally (iii) at least one organosiloxane chosen from a hydrolyzate or a cyclosiloxane, so to cause polymerization of components (i), (ii), and optionally (iii) to form branched polymers.

US Patent:

8124689, Feb 28, 2012

Filed:

Jun 6, 2007

Appl. No.:

12/303362

Inventors:

Gary Loubert - Midland MI, US
Timothy P. Mitchell - Clio MI, US
Xavier Thomas - Rhode-Saint-Genese, BE

Assignee:

Dow Corning Corporation - Midland MI

International Classification:

A61K 9/70
C08L 83/10

US Classification:

525100, 525477, 526319, 526328, 528 24, 528 38

Abstract:

A silicone acrylate hybrid composition includes the reaction product of a silicon-containing pressure sensitive adhesive composition, an ethylenically unsaturated monomer, and an initiator. The silicon-containing pressure sensitive adhesive composition includes acrylate or methacrylate functionality. A method of making the hybrid composition includes polymerizing the ethylenically unsaturated monomer and the silicon-containing pressure sensitive adhesive composition in the presence of the initiator.

US Patent:

20110135923, Jun 9, 2011

Filed:

Jul 27, 2009

Appl. No.:

13/056290

Inventors:

Dongchan Ahn - Midland MI, US
Timothy Mitchell - Clio MI, US

International Classification:

B32B 27/36
B32B 27/06
B05D 5/10
C08F 4/52

US Classification:

428355AC, 428355 R, 428480, 428446, 4272084, 526196

Abstract:

A composite article includes a substrate and a pressure sensitive adhesive (PSA) disposed on the substrate. The PSA includes a polymer formed from at least one radical curable organic compound polymerized in the presence of an organoborane initiator. The polymer has a polydispersity index of less than or equal to 5.0 and a temperature of softening less than a temperature of use. The composite article is formed by a method including the steps of polymerizing the at least one radical curable organic compound to form the polymer and applying the PSA to the substrate to form the composite article. The polymer is formed by a method including the steps of combining the at least one radical curable organic compound and the organoborane initiator and polymerizing the at least one radical curable organic compound.

US Patent:

20220411588, Dec 29, 2022

Filed:

Dec 2, 2020

Appl. No.:

17/780546

Inventors:

- Midland MI, US
Zhenbin NIU - Midland MI, US
Sze-Sze NG - Midland MI, US
Lori DEHLIN - Midland MI, US
Deana DUJARDIN - Seneffe, BE
Alex KNOTT - Seneffe, BE
David RICH - Midland MI, US
Thomas BEKEMEIER - Midland MI, US
Timothy P. MITCHELL - Midland MI, US
Dongchan AHN - Midland MI, US

International Classification:

C08G 77/08
C09J 183/04
C09J 7/40
C08G 77/00
C08G 77/20

Abstract:

A composition for forming a release coating is disclosed. The composition comprises (A) an organopolysiloxane comprising the reaction product of: (i) a silicone resin having a particular formula; (ii) a cyclic siloxane; and (iii) (iii) at least one of (A)(iii) (a) a branched organopolysiloxane having a particular formula or (A)(iii)(b) a terminating agent; in the presence of a polymerization catalyst. The composition further comprises (B) an organopolysiloxane including an average of at least two silicon-bonded ethylenically unsaturated groups per molecule.

US Patent:

20220380623, Dec 1, 2022

Filed:

Sep 11, 2020

Appl. No.:

17/625513

Inventors:

- Midland MI, US
Mike Ferritto - Midland MI, US
Timothy Mitchell - Midland MI, US
Sze-Sze Ng - Midland MI, US
Dianna Proffit - Midland MI, US
Randall G. Schmidt - Midland MI, US
Hannah Wedge - Midland MI, US

International Classification:

C09D 183/04
C08G 77/08
C08G 77/12
C08G 77/00
C08G 77/20
C08K 5/05
C08K 5/12
C08K 5/5425
C08J 7/04

Abstract:

A silicone release coating composition and method for its preparation and use are described. A release coating prepared by curing the silicone release coating composition has high immediate release force (>50 g/in). A release liner including the release coating is suitable for use as a transfer liner in processes for making composites articles, such as aircraft parts.

US Patent:

20230103925, Apr 6, 2023

Filed:

Mar 15, 2021

Appl. No.:

17/797478

Inventors:

- Midland MI, US
Timothy Mitchell - Midland MI, US
Jodi Mecca - Midland MI, US

International Classification:

C09J 183/04
C09J 7/38

Abstract:

A polydiorganosiloxane having a silicon bonded poly(meth)acrylate polymer or copolymer is useful in a polyorganosiloxane hybrid pressure sensitive adhesive composition that cures to form a polyorganosiloxane hybrid pressure sensitive adhesive. An adhesive article including the polyorganosiloxane hybrid pressure sensitive adhesive is also disclosed.

US Patent:

20230047536, Feb 16, 2023

Filed:

Dec 2, 2020

Appl. No.:

17/780542

Inventors:

- Midland MI, US
Zhenbin NIU - Midland MI, US
Sze-Sze NG - Midland MI, US
Sébastien GROFILS - Seneffe, BE
Lori DEHLIN - Midland MI, US
Deana DUJARDIN - Seneffe, BE
Alex KNOTT - Seneffe, BE
David RICH - Midland MI, US
Thomas BEKEMEIER - Midland MI, US
Timothy P. MITCHELL - Midland MI, US
Dongchan AHN - Midland MI, US

International Classification:

C09J 7/40
C09J 7/21
C09J 7/20

Abstract:

A composition for forming a release coating is disclosed. The composition comprises (A) an organopolysiloxane comprising the reaction product of: (i) a silicone resin having a particular formula; and (ii) a cyclic siloxane; in the presence of a polymerization catalyst. The composition further comprises (B) an organopolysiloxane including an average of at least two silicon-bonded ethylenically unsaturated groups per molecule.