Silicone resin compositions and molded articles thereof

Details Silicone resin compositions and molded articles thereof Silicone resin compositions and molded articles thereof

2008-06-10

2008-06-10

Zimmer, Marc S (Department: 1796)

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C522S099000, C526S308000, C526S309000, C526S321000, C526S323100, C526S323200, C526S328000, C526S328500

Reexamination Certificate

active

07385017

ABSTRACT:
This invention relates to a silicone resin composition which exhibits high heat resistance, high transparency and high dimensional stability and thus can be suitably used for optical applications such as a lens, an optical disc, an optical fiber, a substrate for a plat panel display, a window material for an automobile, and the like. A silicone resin composition, which comprises a silicone resin comprising, as a primary component, a polyorganosilsesquioxane being represented by the formula: [RSiO3/2]n, wherein R represents an organic functional group having a (meth)acryloyl group, and n is 8, 10 or 12, and having a cage type structure in its structural unit, and an unsaturated compound having, in its molecule, at least one unsaturated group represented by —R3—CR4═CH2or —CR4═CH2, wherein R3represents an alkylene group, an alkylidene group or a —OCO— group and R4represents a hydrogen atom or an alkyl group, and being capable of radically copolymerizing with the above silicone resin, in a weight proportion of 1:99 to 99:1.

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Printed structure of product No. MA 0735 from the internet site of Hybrid Plastics Co.
English Translation of International Preliminary Report dated Nov. 17, 2005.
Supplementary European Search Report by EPO, App. No. 04722461.3-1214, Reference EPP92941, Jul. 25, 2007 (3 pages).

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