Curable resin composition

Details Curable resin composition Curable resin composition

2007-09-20

2008-11-04

Teskin, Fred M (Department: 1796)

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C526S292300, C526S320000, C522S181000, C522S183000

Reexamination Certificate

active

07446159

ABSTRACT:
A resin composition having a viscosity suitable for encapsulating optical devices such as light-emitting devices is provided. Specifically, the cured product of the resin composition has a refractive index greater than or equal to that of epoxy resins, exhibits excellent heat resistance and light resistance, and has thermal stress relaxation properties. The curable resin composition contains a fluorene group-containing acrylate or methacrylate represented by the following formula and a specific monofunctional acrylate or methacrylate:wherein X is —(CH2CH2O)n— or —(CH2CH2O)—CH2CH(OH)CH2O— with n being 1 to 5 and R is an acrylic or methacrylic group.

REFERENCES:
patent: 5502139 (1996-03-01), Toh et al.
patent: A 2002-293762 (2002-10-01), None
patent: A 2004-015063 (2004-01-01), None

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