Processing method for synthetic rubbers

Details Processing method for synthetic rubbers Processing method for synthetic rubbers

1973-09-27

1976-07-20

Ziegler, J.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260879, 526 66, 526 79, 526 86, 526335, C08L 900

Patent

active

039707245

ABSTRACT:
A method of preparing synthetic rubbers having improved green strength and improved processing characteristics wherein a portion of the monomer is contacted with a catalyst imparting a cis-1,4 configuration and subsequently contacting the remaining portion of the monomer with a catalyst capable of imparting a trans-1,4 configuration.

REFERENCES:
patent: 3086000 (1963-04-01), Wargotz
patent: 3335041 (1967-08-01), Osborne
patent: 3489823 (1970-01-01), Naarmann et al.

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