Jayantha Amarasekera

6395815, May 28, 2002

Feb 11, 2000

09/503617

John Eric Tkaczyk - Delanson NY
Frederic Joseph Klug - Schenectady NY
Jayantha Amarasekera - Clifton Park NY
Chris Allen Sumpter - Scotia NY

General Electric Company - Schenectady NY

C08K 334

524449

A high temperature insulating composite composition comprising at least one ground silicate mineral and at least one silicone polymer. The at least one ground silicate mineral is at least one mineral selected from the group of olivine group; garnet group; aluminosilicates; ring silicates; chain silicates; and sheet silicates. The high temperature insulating material has particular usefulness for insulating electrical wires.

6582825, Jun 24, 2003

Aug 30, 2001

09/943236

Jayantha Amarasekera - Clifton Park NY
John Raymond Krahn - Schenectady NY

General Electric Company - Niskayuna NY

B32B 2520

428417, 524425, 524492, 524588, 528 24, 428405, 525477, 174137 R

A hydrophobicity imparting particulate is provided in the present invention. A silicone composition comprises (A) a silicone polymer and (B) a hydrophobicity imparting particulate filler that imparts a hydrophobicity property to the composition. An insulator comprises a housing portion that includes a cured product of (A) a silicone polymer and (B) a hydrophobicity imparting particulate filler. A hydrophobicity recovery property of a silicone polymer composition can be improved by determining a target hydrophobicity recovery property for the cured silicone composition, selecting a hydrophobicity imparting particulate (HIP) to impart the hydrophobicity recovery property to the silicone polymer composition and compounding a blend of (A) a silicone polymer and (B) the selected inorganic filler and heating to cure the blend.

6689835, Feb 10, 2004

Nov 15, 2001

09/683069

Jayantha Amarasekera - Clifton Park NY
Kim Balfour - Delanson NY
Christian Lietzau - Delmar NY

General Electric Company - Pittsfield MA

C08K 304

524495, 524494, 524496

An improved, conductive, polymeric composition comprises a polymeric resin; an electrically conductive filler system comprising small carbon fibers and either carbon powder or fibrous non-conductive filler or a combination of both. The amount of the conductive filler system utilized is dependent upon the desired electrical conductivity (surface and volume conductivity or resistivity) while preferably preserving intrinsic properties of the polymeric resin such as impact, flex modulus, class A finish, and the like. The conductive articles made from these compositions can therefore be used for electromagnetic shielding, electrostatic dissipation or antistatic purposes in packaging, electronic components, housings for electronic components and automotive housings.

20010014714, Aug 16, 2001

Jan 16, 2001

09/760124

Jayantha Amarasekera - Clifton Park NY, US
John Krahn - Schenectady NY, US

C08L083/00

524/588000

A hydrophobicity imparting particulate is a hydrophobicity imparting particulate. A silicone composition comprises (A) a silicone polymer and (B) a hydrophobicity imparting particulate filler that imparts a hydrophobicity property to the composition. An insulator comprises a housing portion that includes a cured product of (A) a silicone polymer and (B) an hydrophobicity imparting particulate filler. A hydrophobicity recovery property of a silicone polymer composition can be improved by determining a target hydrophobicity recovery property for the cured silicone composition, selecting an hydrophobicity imparting particulate (HIP) to impart the hydrophobicity recovery property to the silicone polymer composition and compounding a blend of (A) a silicone polymer and (B) the selected inorganic filler and heating to cure the blend.

20030181568, Sep 25, 2003

Dec 27, 2002

10/331151

Jayantha Amarasekera - Clifton Park NY, US
Kim Balfour - Delanson NY, US
Christian Lietzau - Delmar NY, US

C08K003/04

524/495000

An improved, conductive, polymeric composition comprises a polymeric resin; an electrically conductive filler system comprising small carbon fibers and either carbon powder or fibrous non-conductive filler or a combination of both. The amount of the conductive filler system utilized is dependent upon the desired electrical conductivity (surface and volume conductivity or resistivity) while preferably preserving intrinsic properties of the polymeric resin such as impact, flex modulus, class A finish, and the like. The conductive articles made from these compositions can therefore be used for electromagnetic shielding, electrostatic dissipation or antistatic purposes in packaging, electronic components, housings for electronic components and automotive housings.

20060235117, Oct 19, 2006

Jul 6, 2005

11/175242

Nicola Cont - Bergen op Zoom, NL
Bo Liu - Coatesville PA, US
Xiaomin Zhang - Shanghai, CN
Jayantha Amarasekera - Exton PA, US

C08K 5/49

524115000, 524465000, 524508000

An internally lubricated thermoplastic composition consisting essentially of 5 to 50 wt. % of a polycarbonate; 35 to 90 wt. % of a polyalkylene terephthalate, a polyalkylene naphthanoate resin, or blends thereof; 0.5 to 4 wt. % of a modified polyolefin; and optionally, up to 30 wt. % of a flame retardant agent, with a balanced fatigue and dimensional stability properties. Articles molded from the composition of the invention display excellent wear performance properties.

20070213455, Sep 13, 2007

Jan 3, 2007

11/648909

Jayantha Amarasekera - Clifton Park NY, US
James Doin - Hoosick Falls NY, US

C08L 83/04

524588000

The present invention discloses a composition comprising a silicone polymer, a reinforcing filler, an anti-tracking agent and a flame retardant, a coupling agent, a curing agent an extending filler; and at least one processing fluid. These compositions, upon curing, are useful as High Voltage Insulators (HVI) with out door applications.

20080139065, Jun 12, 2008

Dec 11, 2006

11/609147

Jayantha Amarasekera - Exton PA, US
Bo Liu - Cootesville PA, US
Lowrence D. Lucco - Parkesburg PA, US

D03D 15/00

442189, 252500, 252503, 252601, 252 884, 26417211, 26417216, 428367

A conductive thermoplastic composition capable of forming conductive fibers including monofilaments, methods of making these compositions, and fibers including these compositions. The conductive thermoplastic compositions may be formed using any method capable of forming the compositions into fibers. The fibers are substantially smooth and/or are capable of being woven into fabrics or other articles to provide conductive properties to the fabric or article. These fibers provide effective static charge dissipation that may be imparted into applications such conveying belts or protective clothing for clean room operation.