Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1995-05-25
1996-05-28
Jagannathan, Vasu S.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
5253328, 5253333, 525370, 525940, C08F 804, C08F29704
Patent
active
055212549
ABSTRACT:
Polymers containing ketone groups such hydroesterified 1,3-butadiene polymers, including styrenic block copolymers, are hydrogenated with a cobalt/aluminum catalyst which substantially converts ketone groups to alcohol groups and improves polymer stability.
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Jagannathan Vasu S.
Shell Oil Company
Tackett Keith M.
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