Stephen L Tondre, 7133455 Caliban Dr, Fremont, CA 94555

4521485, Jun 4, 1985

Sep 27, 1983

6/536919

Stephen L. Tondre - Menlo Park CA
Hans E. Lunk - Fremont CA

Raychem Corporation - Menlo Park CA

B32B 1500
H01B 700

428383

Electrical insulation comprises (1) an inner layer of a cross-linked polymer, e. g. polyethylene, an ethylene/tetrafluoroethylene copolymer, an ethylene/chlorotrifluoroethylene polymer or a vinylidene fluoride polymer, and (2) an outer layer of an aromatic polymer having a glass transition temperature of at least 100. degree. C. , e. g. a polyether ether ketone, a polyether ketone or a polyether sulfone. Such insulation combines excellent properties under normal service conditions with low smoke evolution on burning, and is therefore particularly useful for aircraft wire and cable.

5248713, Sep 28, 1993

Jun 13, 1990

7/537558

Hans E. Lunk - Menlo Park CA
Timothy S. Smith - Nr. Trowbridge, GB2
Stephen L. Tondre - Fremont CA
Alan S. Yeung - Redwood City CA

Raychem Corporation - Menlo Park CA

C08K 549

524120

Compositions containing at least about 30% of a poly(alkylene terephthalate), at least about 3% of a polylactone, about 0. 05% to about 10% of a carbodiimide and at least about 0. 05% to about 10% of an aliphatic phosphite, all percentages being by weight based on the weight of the composition, has excellent thermal stability. The compositions are useful for wire insulation and cable jacketing. Heat recoverable articles, such as tubing and molded parts can be prepared from the compositions.

6087591, Jul 11, 2000

Jul 31, 1996

8/690092

Phu D. Nguyen - San Jose CA
Ismael L. Sandoval - Tracy CA
Stephen L. Tondre - Fremont CA
Alan S. Yeung - Redwood City CA

H01B 700

174110R

Polymeric compositions which contain a thermoplastic aromatic polyester, preferably polybutylene terephthalate, and a polyester block copolymer having a recrystallization temperature greater than 150. degree. C. , preferably a thermoplastic elastomer containing aromatic polyester blocks and aliphatic polyester blocks. The ratio of the block copolymer to the aromatic polyester is 0. 05:1 to 0. 35:1, preferably 0. 15:1 to 0. 30:1. These compositions are particularly useful as the insulation on hermetic lead wires for use in refrigerant systems. To prevent cracking of such insulation when it is contacted by a varnish used to provide hermetic sealing, it can be covered by a thin layer of a fluoropolymer.

4678709, Jul 7, 1987

May 28, 1985

6/738622

Stephen L. Tondre - Menlo Park CA
Hans E. Lunk - Fremont CA

Raychem Corporation - Menlo Park CA

B32B 1508
H01B 700

428380

Electrical insulation comprises (1) an inner layer of a cross-linked polymer, e. g. polyethylene, an ethylene/tetrafluoroethylene copolymer, an ethylene/chlorotrifluoroethylene polymer or a vinylidene fluoride polymer, and (2) an outer layer of an aromatic polymer having a glass transition temperature of at least 100. degree. C. , e. g. a polyether ether ketone, a polyether ketone or a polyether sulfone. Such insulation combines excellent properties under normal service conditions with low smoke evolution on burning, and is therefore particularly useful for aircraft wire and cable.

5908887, Jun 1, 1999

Jul 14, 1994

8/275174

Stephen L. Tondre - Fremont CA
Alan S. Yeung - Redwood City CA
Viktors Jansons - Los Gatos CA

Raychem Corporation - Menlo Park CA

C08K 504
C08K 332
C08K 318
B32B 1508

524399

Novel polyester compositions, particularly suitable for the insulation of wires, contain an aromatic polyester, especially polybutylene terephthalate. The presence of certain tin (II) compounds, for example tin (II) oxide, oxalate, phthalate, pyromellitate, or phosphite, reduces the flammability and smoke generation of such compositions. The presence of an aliphatic polyester, and optionally a thermoplastic elastomer, can also improve the properties of such compositions.

2016019, Jul 7, 2016

Dec 29, 2015

14/983451

- San Carlos CA, US
Dennis Menchung Kwok - San Mateo CA, US
Eric David Nyberg - San Carlos CA, US
Stephen Leroy Tondre - Fremont CA, US

PIONETICS CORPORATION - San Carlos CA

C02F 1/469
B01D 69/04

An anti-scale electrochemical apparatus comprises at least one ion exchange cell, each cell comprising a housing having a plurality of openings to receive and release a water stream, inner and outer electrodes in the housing, and a water-splitting membrane between the inner and outer electrodes to treat an influent water stream to form an effluent water stream. A controlled-release scale-inhibitor composite comprising a scale-inhibitor agent and a polymer, is provided in the housing or in the water flow pathway of the electrochemical apparatus. An anti-scale, water splitting ion exchange membrane was also fabricated.