Selective catalytic process for preparing N-halothiosulfonamide

Details Selective catalytic process for preparing N-halothiosulfonamide Selective catalytic process for preparing N-halothiosulfonamide

1989-09-06

1991-05-21

Henderson, Christopher

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

5253318, C08C 1922

Patent

active

050176625

ABSTRACT:
A catalyst composition is provided which comprises at least one specified metal salt of a weak acid and a zinc salt of a weak acid or an iron salt of a weak acid. A process for preparing a N-halothio-sulfonamide-modified terpolymer of ethylene, an alpha olefin and a diene utilizing the catalyst is also provided. The catalyst is a selective catalyst in this process.

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R. J. Hopper, "Improved Cocure of EPDM-Polydiene Blends by Conversion of EPDM Into Macromolecular Cure Retarder", Rubber Chemistry and Technology, vol. 49, p. 346 and Table 1.
G. A. Olah, Friedel-Crafts Chemistry, John Wiley & Sons, 1973, p. 238.
R. J. Hopper et al., Preprint, International Conference on Advances in the Stabilization and Controlled Degradation of Polymers, Ozone Resistant, Co-Curable Blends of Chemically Modified EPDM with Polydiene Elastomers, 5/84.

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