Process for the production of an assembly comprising several...

Details Process for the production of an assembly comprising several... Process for the production of an assembly comprising several...

2003-06-17

2009-08-11

Gulakowski, Randy (Department: 1796)

Stock material or miscellaneous articles

Composite

Of silicon containing

C428S446000, C428S448000, C528S015000, C528S031000, C528S032000, C528S033000, C528S010000, C528S012000

Reexamination Certificate

active

07572514

ABSTRACT:
A process for production of an assembly including several silicone elements crosslinked by polyaddition of ≡Si—H units onto ≡Si-alkenyl (preferably ≡Si-vinyl) units, the elements adhering to one another without detracting from their mechanical properties. The process includes: (I) forming (1stcoating) a silicone element (i) with a liquid silicone preparation (i) containing polyorganosiloxanes (POS) A with ≡Si-vinyl units, (POS) B with ≡Si—H units, a platinum catalyst C; (II) crosslinking so that (i) has a surface density SD of unreacted, residual vinyl, per nm2, of 0.0100≧SD≧0.0040; (III) optionally repeating steps (I) and (II) n times to give n elements (i) that adhere to one another; (IV) forming (2ndcoating) a silicone element (ii) with a liquid silicone preparation (ii) of the same type as described above; (v) crosslinking to give crosslinked (ii) that adheres to (i).

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