Thomas J Tangney

US Patent:

6465552, Oct 15, 2002

Filed:

May 1, 2001

Appl. No.:

09/845971

Inventors:

Igor Chorvath - Midland MI
Frances Marie Fournier - Flint MI
Christopher James Julien - Freeland MI
Michael Kang-Jen Lee - Midland MI
Dawei Li - Midland MI
Jun Liao - Midland MI
Robert Leo Oldinski - Bay City MI
Richard Leroy Rabe - Midland MI
David Joseph Romenesko - Midland MI
Thomas John Tangney - Midland MI
Yongjun Lee - Hiratsuka, JP
Koji Nakanishi - Ichihara, JP

Assignee:

Dow Corning Corporation - Midland MI

International Classification:

C08K 513

US Classification:

524323, 524349, 524730, 524731, 524862, 525431, 525446

Abstract:

Thermoplastic elastomers are disclosed which are prepared by; (I) mixing, (A) a thermoplastic resin comprising more than 50 percent by volume of a polyamide or a polyester resin, (B) a silicone base comprising; (Bâ) 100 parts by weight of a diorganopolysiloxane gum having a plasticity of at least 30 and having an average of at least 2 alkenyl groups per molecule and (Bâ) 5 to 200 parts by weight of a reinforcing filler, wherein the weight ratio of said silicone base to said polyamide or polyester resin is from 35:65 to 85:15, (C) a compatibilizer, (D) a radical initiator, present in an amount sufficient to cure said diorganopolysiloxane gum, and optionally (E) a stabilizer, (II) dynamically vulcanizing said diorganopolysiloxanes gum, wherein at least one property of the thermoplastic elastomer selected from tensile strength or elongation is at least 25% greater than the respective property for a corresponding simple blend wherein said diorganopolysiloxane is not cured and said thermoplastic elastomer has an elongation of at least 25%.

US Patent:

6479580, Nov 12, 2002

Filed:

Apr 30, 2001

Appl. No.:

09/843906

Inventors:

Igor Chorvath - Midland MI
Dean Curtis Gray - Midland MI
Michal Kang-Jen Lee - Midland MI
Thomas John Tangney - Midland MI

Assignee:

Dow Corning Corporation - Midland MI

International Classification:

C08L 8307

US Classification:

524588, 524866, 524860, 524291, 524343, 524342

Abstract:

Polyolefin thermoplastic elastomers are disclosed which are prepared by; (I) mixing (A) a thermoplastic resin comprising more than 50 percent by volume of a polyolefin resin, said thermoplastic resin having a softening point of 23Â C. to 300Â C. ; (B) a silicone base comprising (Bâ) 100 parts by weight of a diorganopolysiloxane gum having a plasticity of at least 30 and having an average of at least 2 alkenyl groups per molecule, and optionally, (Bâ) up to 200 parts by weight of a reinforcing filler, the weight ratio of said silicone base to said polyolefin thermoplastic resin is from 35:65 to 85:15; (C) a radical initiator, present in an amount sufficient to cure said diorganopolysiloxane gum (Bâ); and (II) dynamically vulcanizing said diorganopolysiloxane gum, wherein at least one property of the thermoplastic elastomer selected from tensile strength or elongation is at least 25% greater than the respective property for a corresponding simple blend wherein said diorganopolysiloxane gum is not cured and said thermoplastic elastomer has an elongation of at least 25%.

US Patent:

6759487, Jul 6, 2004

Filed:

Oct 23, 2002

Appl. No.:

10/278532

Inventors:

Gerald Alphonse Gornowicz - Longboat Key FL
Craig Steven Gross - Midland MI
Mark Daniel Hartmann - Midland MI
Jun Liao - Midland MI
Jeffrey Paul Sage - Midland MI
Gifford Neale Shearer - Midland MI
Thomas John Tangney - Copley OH

Assignee:

Dow Corning Corporation - Midland MI

International Classification:

C08L 8306

US Classification:

525478, 524588

Abstract:

Re-processable thermoplastic elastomer composition comprising (A) a thermoplastic polyurethane polymer, and (B) a silicone elastomer, wherein the weight ratio of the silicone elastomer to the thermoplastic polyurethane polymer is from 5:95 to 85:15, are disclosed along with methods for making such compositions.

US Patent:

45074550, Mar 26, 1985

Filed:

May 11, 1984

Appl. No.:

6/609380

Inventors:

Thomas J. Tangney - Midland MI
Maris J. Ziemelis - Midland MI

Assignee:

Dow Corning Corporation - Midland MI

International Classification:

C08G 7704

US Classification:

528 26

Abstract:

Aminofunctional siloxanes, such as siloxanes bearing ethylenediamine-substituted hydrocarbon radicals, have their amine functionality fully modified by reaction with a monocarboxylic acid anhydride. The modifying functionality includes complete diamide or amide-amine salt formation. The amide-amine salt functionality can further be converted to a mixture of diamide and amide-amine functionality, if desired. The modified aminofunctional siloxanes have utility as components in hair care compositions, textile treating compositions and moldable polymeric compositions.

US Patent:

49804405, Dec 25, 1990

Filed:

Jun 4, 1990

Appl. No.:

7/534568

Inventors:

Craig K. Kendziorski - Midland MI
Charles E. Neal - Midland MI
Loretta A. Sobieski - Midland MI
Thomas J. Tangney - Midland MI
David L. Stickles - Midland MI

Assignee:

Dow Corning Corporation - Midland MI

International Classification:

C08G 7706

US Classification:

528 15

Abstract:

A new organohydrogenpolysiloxane compound and a new fluorosilicone polymer each have unique properties which allow for the preparation of faster curing coating compositions having longer bath life than those disclosed in the art. In a preferred embodiment the new polymers are mixed together to provide, along with a metal-containing hydrosilylation catalyst and a catalyst inhibitor to provide improved coating compositions which are useful for preparing a release liner to protect silicone pressure sensitive adhesives.

US Patent:

50827065, Jan 21, 1992

Filed:

Nov 23, 1988

Appl. No.:

7/276178

Inventors:

Thomas J. Tangney - Midland MI

Assignee:

Dow Corning Corporation - Midland MI

International Classification:

C09J 700
C09J14304

US Classification:

428 40

Abstract:

Addition-curable silicone pressure sensitive adhesives can be covered with an addition-cured fluorosilicone release coating to provide a releasable laminate. The release force of the laminate is low to moderate and the subsequent adhesion and tack of the adhesive is high and all three values are stable with time. The laminate can be prepared by contacting the release coating with cured adhesive or by curing the adhesive in contact with the release coating.

US Patent:

51009765, Mar 31, 1992

Filed:

Jan 16, 1990

Appl. No.:

7/464805

Inventors:

Yuji Hamada - Chiba, JP
Akihiko Shirahata - Chiba, JP
Thomas J. Tangney - Midland MI

Assignee:

Dow Corning Corporation - Midland MI
Dow Corning Toray Silicone Company, Ltd. - Tokyo

International Classification:

C08F28300

US Classification:

525477

Abstract:

The subsequent tack and adhesion of a silicone pressure-sensitive adhesive can be improved by incorporating into the adhesive a small amount of an organopolysiloxane resin having a majority of R. sub. 3 SiO. sub. 1/2 siloxane units and the balance (R. sup. 2 O). sub. a SiO. sub. (4-a)/2, preferably SiO. sub. 4/2, siloxane units. The resulting composition, when brought into contact with a release liner, such a peelable protective sheet or the backside of the next turn in a roll of tape, have better tack and/or adhesion when separated from that liner than an analogous composition which does not contain the resin.

US Patent:

49506340, Aug 21, 1990

Filed:

Sep 22, 1988

Appl. No.:

7/248893

Inventors:

Dwight E. Williams - Midland MI
Thomas J. Tangney - Midland MI

Assignee:

Dow Corning Corporation - Midland MI

International Classification:

B01J 2032
B01J 2022
B01D 1508
B32B 514

US Classification:

502401

Abstract:

Dual zone porous materials having an external zone and an internal zone are prepared by contacting a suspension of a porous support, such as particulate silica, in an aprotic solvent with an organosilane mixture of a first organosilane having first silyl groups and a second organosilane of a second type in order to form first silyl groups predominantly or the external surfaces of the porous support and second silyl groups predominantly on the internal surfaces of the porous support.