C - Chemistry – Metallurgy – 08 – K
Patent
C - Chemistry, Metallurgy
08
K
C08K 3/30 (2006.01) C08K 9/08 (2006.01) C08L 9/00 (2006.01) C08L 23/16 (2006.01) C08L 27/18 (2006.01) H01B 3/30 (2006.01)
Patent
CA 2151132
A novel rubber molding composition suitable for electrical appliances, particularly for a PST, is obtained by improving the resistance to tearing of a silicone-modified EPDM inherently resistant to cold, weather conditions, and heat. A PST produced from this composition is also provided. A rubber molding composition for electrical. Appliances characterized by comprising (1) 100 parts by weight of a silicone- modified ethylene-propylene-diene terpolymer and (2) from 0.5 to 2 parts by weight of granular polytetrafluoroethylene and an amount of molybdenum disulfide effective to uniformly mix the granular polytetrafluoroethylene with the terpolymer; a rubber molding composition for electrical appliances characterized by comprising (1) 100 parts by weight of a silicone-modified ethylene-propylene-diene terpolymer, (2) from 0.5 to 2 parts by weight of granular polytetrafluoroethylene and an amount of molybdenum disulfide effective to uniformly mix the granular polytetrafluoroethylene with the terpolymer, and (3) 4 to 20 parts by weight of a 1,4-hexadiene type ethylene-propylene-diene terpolymer possessing a Mooney viscosity, [ML(1+4)121°C], in the range of from 60 to 80; electrical appliances such as, for example, PST, formed of the rubber molding composition mentioned above are provided.
Kobayashi Hiroyuki
Nagaosa Tomoo
Minnesota Mining And Manufacturing Company
Smart & Biggar
LandOfFree
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