Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1989-05-09
1990-12-18
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...
525314, 525315, 525316, 525375, C08F 846, C08F 830, C08F 826, C08F 814
Patent
active
049787195
ABSTRACT:
Novel heat-curable elastomeric polymers comprise an elastomeric base polymer modified by the presence on the elastomeric base polymer molecule of at least one pendant carboxylic acid ester group wherein the ester moiety contains certain types of reactive unsaturation. In a preferred embodiment, the base polymer is a selectively hydrogenated block copolymer of the poly(vinylaromatic compound)polyalkadiene type, and the ester moiety is propargyl.
REFERENCES:
patent: 3658942 (1972-04-01), Kargin et al.
patent: 3842146 (1974-10-01), Milkovich et al.
patent: 3976628 (1976-08-01), Halasa et al.
patent: 4006113 (1977-02-01), Furukawa et. al.
patent: 4638019 (1987-01-01), Von Gentzkow et al.
Seccuro Carman J.
Shell Oil Company
Vance Dean F.
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