Process for hydrogenating conjugated diene polymers

Details Process for hydrogenating conjugated diene polymers Process for hydrogenating conjugated diene polymers

1982-07-19

1984-06-05

Schofer, Joseph L.

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

Synthetic resins

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

5253293, C08F 804

Patent

active

044529511

ABSTRACT:
In a process for hydrogenating a conjugated diene polymer which comprises hydrogenating the carbon-carbon double bonds of the conjugated diene polymer using a hydrogenation catalyst supported on a carrier, the improvement wherein the carrier is porous silica having an average pore diameter of from 80 to 1,200 .ANG. and a specific surface area of not more than 600 m.sup.2 /g.

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patent: 2844573 (1958-07-01), Gluesenkamp et al.
patent: 2864809 (1958-12-01), Jones et al.
patent: 3809687 (1974-05-01), Allison, Jr. et al.
patent: 4337329 (1982-06-01), Kubo et al.
patent: 4384081 (1983-05-01), Kubo et al.

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