Ept elastomers

Details Ept elastomers Ept elastomers

1976-08-06

1978-03-07

Holler, Alan

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

260897A, 526 65, 526 66, 526143, 526169, 526336, C08C 1920, C08F21018

Patent

active

040781313

ABSTRACT:
Elastomers of the ethylene-propylene-termonomer type.
In accordance with the invention these elastomers have a bimodal distribution of the molecular weights, each principal fraction having, on the one hand, a wide distribution of the molecular weights and a monomer composition which is different from that of the other principal fraction, but, on the other hand, a distribution of composition as a function of the molecular weights which is very narrow around the average value contemplated for the fraction.

REFERENCES:
patent: 3718632 (1973-02-01), Gardner et al.
"Copolymerization," Ed. by G. E. Ham, Interscience, New York (1964), pp. 264-273.

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