Epoxidized diene elastomers for exterior block crosslinking

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Compositions to be polymerized by wave energy wherein said...

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525314, 525901, C08J 328

Patent

active

H00015970

ABSTRACT:
An epoxidized diene block polymer comprising at least interior and exterior diene blocks wherein the exterior diene blocks contain a greater concentration of di-, tri- and tetrasubstituted olefinic epoxides than the interior blocks and wherein the exterior blocks contain from 0.2 to 10 Meq of olefinic epoxides per gram of exterior blocks and the molecular weights of the exterior blocks are from 3000 to 50,000 and the molecular weights of the interior blocks are from 15,000 to 200,000.

REFERENCES:
patent: 3607982 (1971-09-01), Winkler et al.
patent: 4417029 (1983-11-01), Milkovich
patent: 5002676 (1991-03-01), Willis et al.

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