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

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...

Reexamination Certificate

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C525S280000, C525S289000, C525S326700, C525S376000

Reexamination Certificate

active

11522484

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: 6284852 (2001-09-01), Lynn et al.
Liaw, et al, Preparation of New DiBlock Polymeric Materials with Carbazole Groups Derived from the Combination of Living Ring-Opening Metathesis Polymerization and Atom Transfer Radical Polymerization, Polymer Preprints 2003, 44(1), 945-946.
Liaw, et al. Polynorbornene with Cross-Linkable Side Chains via Ring-Opening Metathesis Polymerization, Macromolecules 2000, vol. 33, 6925-6929.

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