Preparation of dicyclopentadiene-containing unsaturated...

Details Preparation of dicyclopentadiene-containing unsaturated... Preparation of dicyclopentadiene-containing unsaturated...

2005-12-20

2005-12-20

Acquah, Samuel A. (Department: 1711)

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

Synthetic resins

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

C528S281000, C528S306000, C524S745000, C525S437000

Reexamination Certificate

active

06977282

ABSTRACT:
A process for making dicyclopentadiene (DCPD)-containing polyesters is disclosed. The process comprises reacting 2-methyl-1,3-propanediol with maleic anhydride to form an acid terminated prepolymer and then reacting the prepolymer with a low grade DCPD to form DCPD-containing polyesters. The reaction of the prepolymer with DCPD is catalyzed by a transition metal triflate catalyst.

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