Dual-cure silicone compounds exhibiting elastomeric properties

Details Dual-cure silicone compounds exhibiting elastomeric properties Dual-cure silicone compounds exhibiting elastomeric properties

2006-09-12

2006-09-12

Berman, Susan (Department: 1711)

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

Synthetic resins

Compositions to be polymerized by wave energy wherein said...

C528S030000, C528S032000, C528S033000

Reexamination Certificate

active

07105584

ABSTRACT:
A dual-cure silicone composition is provided that is useful to make an encapsulating/potting compound. The dual-cure silicone exhibits both UV- and moisture-initiated curing mechanisms, with the UV-initiated curing mechanism providing very rapid curing compared to conventional dual-cure silicones. The dual-cure silicone is an elastomeric material on curing. In a preferred embodiment, the dual-cure silicone composition is made from a mixture of a first polysiloxane component having terminal mercapto and alkoxy functionality, and a second polysiloxane component having terminal vinyl and alkoxy functionality. Methods of making the first and second polysiloxane components also are disclosed.

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