Norbornene compounds with cross-linkable groups and their...

Details Norbornene compounds with cross-linkable groups and their... Norbornene compounds with cross-linkable groups and their...

2008-01-29

2008-01-29

Teskin, Fred (Department: 1713)

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

Synthetic resins

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

C525S327300, C525S338000, C526S282000

Reexamination Certificate

active

07323518

ABSTRACT:
The present invention provided a norbornene compound with cross-linkable groups and their derivative polymers, wherein said cross-linkable groups were olefin or epoxy groups. Norbornene polymers with cross-linkable side chain and their block copolymers as well as modified derivatives were prepared via living ring-open metathesis polymerization method. The resulting polymers with excellent solubility and optic properties had narrow molecular weight distribution, well-controlled molecular weight, small refraction ration and high transparency. They were also suitable for preparing hybrid materials with high thermal stability and chemical resistance.

REFERENCES:
patent: 3277036 (1966-10-01), Whitworth, Jr. et al.
patent: 3681438 (1972-08-01), Starcher et al.
Liaw, et al. Polynorbornene with Cross-Linkable Side Chains via Ring-Opening Metathesis Polymerization, Macromolecules 2000, vol. 33, 6925-6929.

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