Resin composition for optical material

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...

Reexamination Certificate

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C525S222000, C525S238000, C525S241000

Reexamination Certificate

active

07985803

ABSTRACT:
An optical material having a high birefringence and a small absolute value of a photoelastic coefficient is provided by use of a resin composition for an optical material comprising a resin (a) having a positive photoelastic coefficient and a negative inherent birefringence and a resin (b) having a negative photoelastic coefficient and a negative inherent birefringence.

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Taiwan Office Action for related Taiwan Patent Application 095143988, issued Mar. 31, 2011.
Taiwan Office Action for related Taiwan Patent Application 095143988, issued Mar. 31, 2011.

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