Radiation resistant composition, wire and cable
AssigneeHitachi Cable, Ltd.
InventorsYoshiaki Nakamura, Masami Sorimachi, Hitoshi Kimura, Shigeki Matsuyama
Life of this patent
Estimating the term…
Abstract
A radiation resistant composition includes 100 parts by weight of a polymer, 5 to 80 parts by weight of an aromatic series process oil that a polycyclic aromatic (PCA) extract by an IP 346 method (DMSO extraction) is not more than 3% and an aromatic compound content is not less than 20% by a Kurtz analysis, and a radiation resistance imparting agent. The polymer is cross-linked or vulcanized. A wire or a cable includes an insulation and/or a sheath material including the radiation resistant composition.
Claims11
A radiation resistant composition, comprising:
- 100 parts by weight of a polymer;
- 5 to 80 parts by weight of an aromatic series process oil that a polycyclic aromatic (PCA) extract by an IP 346 method (DMSO extraction) is not more than 3% and an aromatic compound content is not less than 20% by a Kurtz analysis;
- and
- a radiation resistance imparting agent, wherein the polymer comprises a first component polymer that comprises at least one cross-linked rubber and a second component polymer that comprises at least one non-cross-linked rubber.
A radiation resistant composition, comprising:
- 100 parts by weight of a polymer;
- 5 to 80 parts by weight of an aromatic series process oil that a polycyclic aromatic (PCA) extract by an IP 346 method (DMSO extraction) is not more than 3% and an aromatic compound content is not less than 20% by a Kurtz analysis;
- and
- a radiation resistance imparting agent,
- wherein the polymer is cross-linked or vulcanized,
- wherein the polymer comprises 5 to 100 parts by weight of a first component polymer, and 50 to 0 parts by weight of a second component polymer, the first component polymer being cross-linked and the second component polymer being non-cross-linked,
- wherein the first component polymer comprises at least one of ethylene propylene rubber, polychloroprene rubber, chlorosulfonated polyethylene, chlorinated polyethylene and nitrile rubber, and
- wherein the second component polymer comprises at least one of ethylene propylene rubber, chlorosulfonated polyethylene and chlorinated polyethylene.
A radiation resistant composition, comprising:
- 100 parts by weight of a polymer;
- 5 to 80 parts by weight of an aromatic series process oil that a polycyclic aromatic (PCA) extract by an IP 346 method (DMSO extraction) is not more than 3% and an aromatic compound content is not less than 20% by a Kurtz analysis;
- and
- a radiation resistance imparting agent,
- wherein the polymer is cross-linked or vulcanized,
- wherein the radiation resistance imparting agent comprises 2 to 30 parts by weight of an antioxidant,
- wherein a first component polymer comprises at least one of ethylene propylene rubber, polychloroprene rubber, chlorosulfonated polyethylene, chlorinated polyethylene and nitrile rubber, and
- wherein a second component polymer comprises at least one of ethylene propylene rubber, chlorosulfonated polyethylene and chlorinated polyethylene.
Dependencies are inferred from the claim text.