Method of processing low molecular weight EPM and EPDM polymers

Details Method of processing low molecular weight EPM and EPDM polymers Method of processing low molecular weight EPM and EPDM polymers

1983-04-08

1984-05-08

Seccuro, Carman J.

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

Synthetic resins

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

525283, 525289, 525290, 525282, 525293, 525296, 525292, 525340, 525343, 525375, 525379, C08L 5106, C08L 2326, C08L 2328

Patent

active

044475829

ABSTRACT:
A method of improving the handling of low molecular weight EPM or EPDM polymers which includes reacting the low molecular weight polymer with a monomer capable of providing quaternary salt forming groups and then cross linking the resulting polymer with a difunctional cross linking agent whereby the polymer takes on the characteristics of a high molecular weight polymer but which can be returned to the characteristics of a low molecular weight polymer upon exposure to elevated temperature.

REFERENCES:
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patent: 3271477 (1966-09-01), Kresge
patent: 3435096 (1969-03-01), Limbert et al.
patent: 3483273 (1969-12-01), Prucnal et al.
patent: 3657395 (1972-04-01), Meredith et al.
patent: 3806555 (1974-04-01), Nagaoka et al.
patent: 3849518 (1974-11-01), Severini et al.
patent: 3886233 (1975-05-01), Visseren
patent: 4340689 (1982-07-01), Joffrion

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