Robert Burford Schultz

US Patent:

48064246, Feb 21, 1989

Filed:

Oct 30, 1986

Appl. No.:

6/924884

Inventors:

Robert E. Schultz - Lawrence KS

Assignee:

Camco, Incorporated - Houston TX

International Classification:

B32B 900
B32B 1500
B32B 2700
H01B 700

US Classification:

428372

Abstract:

The present invention relates to a polymer composition exhibiting high temperature oil resistance, while having improved modulus and tensile strength, as well as a novel insulated electrical conductor employing such material, said material comprising a polymeric constituent selected from the group consisting of copolymers of ethylene and propylene, polymers of same with other polymerizable materials, and mixtures of the foregoing, said constituent being in intimate mixture with from about 1 to about 150 parts by weight (per 100 parts by weight of polymer) of processing oil, and a calcined aluminum silicate clay filler containing less than about 0. 5 percent by weight water (based on the weight of the clay) having an average particle size less than 1 micron with at least about 80 weight percent of the particles having size finer than 2 microns and with as much as 10 weight percent of the particles being more finely divided than 0. 5 microns.

US Patent:

48163376, Mar 28, 1989

Filed:

Oct 30, 1986

Appl. No.:

6/924936

Inventors:

Robert E. Schultz - Lawrence KS

Assignee:

Camco, Incorporated - Houston TX

International Classification:

B32B 900
B32B 1500
B32B 2700
H01B 700

US Classification:

428372

Abstract:

The present invention relates to a polymer composition exhibiting high temperature oil resistance, while having improved modulus and tensile strength, as well as a novel insulated electrical conductor employing such material, said material comprising a polymeric constituent selected from the group consisting of copolymers of ethylene and propylene, polymers of same with other polymerizable materials, and mixtures of the foregoing, said constituent being in intimate mixture with a fully calcined aluminum silicate clay filler containing less than about 0. 5 percent by weight water (based on the weight of the clay) having an average particle size less than 1 micron with at least about 80 weight percent of the particles having size finer than 2 microns and with at least about 10 weight percent of the particles being more finely divided than 0. 5 microns.