Devices featuring silicone elastomers

Details Devices featuring silicone elastomers Devices featuring silicone elastomers

1992-12-30

1993-11-30

Marquis, Melvyn I.

Coating processes

Optical element produced

Polarizer, windshield, optical fiber, projection screen, or...

427162, 528 15, 528 31, B05D 506, C08G 7706

Patent

active

052663523

ABSTRACT:
Devices are described in which certain crosslinked silicone polymers are incorporated. These polymers have various functions such as encapsulating agents, surface protective agents or agents to index match optical components (e.g. optical fiber, optical waveguide, etc.) to other optical devices or articles. The polymer is a vinyl-terminated dimethyldiphenylsiloxane copolymer crosslinked with tri- or tetrafunctional silanes in the presence of a platinum catalyst. The phenyl group content of the crosslinked silicone copolymer is adjusted to change the index of refraction of the polymer to the optimum for the particular application contemplated. Polymer preparation procedures are described which yield good optical quality for the polymer as well as optimum physical and chemical properties.

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