Elizabeth Ann Walker

US Patent:

6841647, Jan 11, 2005

Filed:

Nov 6, 2001

Appl. No.:

09/993589

Inventors:

Elizabeth M. Walker - Nashua NH, US
Jiazhong Luo - Waltham MA, US
Rose Ann Schultz - Westford MA, US
Katharine Louise Pearce - Andover MA, US

Assignee:

National Starch and Chemical Investment Holding Corporation - New Castle DE

International Classification:

C08G 7712
C08G 7720
C08G 7748

US Classification:

528 31, 528 15, 528 32, 528 35, 528 36, 525474, 525477, 525478

Abstract:

A cross-linkable and cross-linked organosilicon polymer which is prepared from a mixture of a reactive polysiloxane resin having both reactive carbon-carbon double bonds and silicone-hydrogen groups, characterized by alternating structures of polycyclic polyene residue and cyclic (or tetrahedral) polysiloxane residue, and either vinyl terminated fluorine-containing polysiloxane or vinyl terminated phenyl-substituted siloxane. In an alternative embodiment, the polymer comprises a mixture of vinyl terminated phenyl-substituted polysiloxane and vinyl functional fluorosilicone elastomer with the cross-linkable and cross linked organosilicon polymer.

US Patent:

7199206, Apr 3, 2007

Filed:

Jan 8, 2004

Appl. No.:

10/753293

Inventors:

Elizabeth M. Walker - Nashua NH, US
Susan Krawiec - Lawrence MA, US
Jiazhong Luo - Acton MA, US
Roseann Schultz - Westford MA, US
Katharine Louise Pearce - Andover MA, US

Assignee:

National Starch and Chemical Investment Holding Corporation - New Castle DE

International Classification:

C08L 83/04

US Classification:

528 35, 528 15, 528 31, 528 32, 524588

Abstract:

A cross-linkable and cross-linked organosilicon polymer which is prepared from a mixture of a reactive polysiloxane resin having both reactive carbon-carbon double bonds and silicone-hydrogen groups, characterized by alternating structures of polycyclic polyene residue and cyclic (or tetrahedral) polysiloxane residue, and either vinyl terminated fluorine-containing polysiloxane or vinyl terminated phenyl-substituted siloxane. In an alternative embodiment, the polymer comprises a mixture of vinyl terminated phenyl-substituted polysiloxane and vinyl functional fluorosilicone elastomer with the cross-linkable and cross linked organosilicon polymer. In an alternative embodiment, the polymer comprises vinyl functional polydimethyl siloxane, and preferably high molecular weight methyl divinyl siloxane, with or without phenyl substituted siloxane.

US Patent:

7241852, Jul 10, 2007

Filed:

Jul 29, 2004

Appl. No.:

10/901713

Inventors:

Elizabeth M. Walker - Nashua NH, US
Jiazhong Luo - Waltham MA, US
Rose Ann Schultz - Westford MA, US
Katharine Louise Pearce - Andover MA, US

Assignee:

National Starch and Chemical Investment Holding Corporation - New Castle DE

International Classification:

G08G 77/08

US Classification:

528 15, 528 31, 528 35

Abstract:

A cross-linkable and cross-linked organosilicon polymer which is prepared from a mixture of a reactive polysiloxane resin having both reactive carbon-carbon double bonds and silicone-hydrogen groups, characterized by alternating structures of polycyclic polyene residue and cyclic (or tetrahedral) polysiloxane residue, and either vinyl terminated fluorine-containing polysiloxane or vinyl terminated phenyl-substituted siloxane. In an alternative embodiment, the polymer comprises a mixture of vinyl terminated phenyl-substituted polysiloxane and vinyl functional fluorosilicone elastomer with the cross-linkable and cross linked organosilicon polymer.

US Patent:

7273916, Sep 25, 2007

Filed:

Jul 29, 2004

Appl. No.:

10/901699

Inventors:

Elizabeth M. Walker - Nashua NH, US
Jiazhong Luo - Waltham MA, US
Rose Ann Schultz - Westford MA, US
Katharine Louise Pearce - Andover MA, US

Assignee:

National Starch and Chemical Investment Holding Corporation - New Castle DE

International Classification:

C08G 77/50

US Classification:

528 25, 528 32, 528 31

Abstract:

A cross-linkable and cross-linked organosilicon polymer which is prepared from a mixture of a reactive polysiloxane resin having both reactive carbon-carbon double bonds and silicone-hydrogen groups, characterized by alternating structures of polycyclic polyene residue and cyclic (or tetrahedral) polysiloxane residue, and either vinyl terminated fluorine-containing polysiloxane or vinyl terminated phenyl-substituted siloxane. In an alternative embodiment, the polymer comprises a mixture of vinyl terminated phenyl-substituted polysiloxane and vinyl functional fluorosilicone elastomer with the cross-linkable and cross linked organosilicon polymer.