Neoprene compositions containing triarylphosphines

Details Neoprene compositions containing triarylphosphines Neoprene compositions containing triarylphosphines

1974-12-19

1976-06-08

Jacobs, Lewis T.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 4234, 260 457P, 260 795B, 260 795C, 526 2, 526 17, 526 30, 526291, C08K 550, C08L 1100

Patent

active

039621790

ABSTRACT:
Addition to unvulcanized chloroprene polymer of 0.5-5 parts by weight of certain triarylphosphines per 100 parts of polymer improves the processing safety of unvulcanized stocks of polymer prepared in the absence of elemental sulfur and reduces the compression set of vulcanizates. In chloroprene-sulfur copolymers, the addition of triarylphosphines results in improved flex resistance.

REFERENCES:
patent: 2382812 (1945-08-01), Parker
patent: 3050499 (1962-08-01), Gordon et al.
patent: 3808183 (1974-04-01), Branlard et al.
patent: 3878181 (1975-04-01), Mayer-Mader et al.

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