The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 11, 2009
Filed:
Jun. 17, 2003
Fabienne Howe, Caluire, FR;
Alain Pouchelon, Meyzieu, FR;
Fabienne Howe, Caluire, FR;
Alain Pouchelon, Meyzieu, FR;
Rhodia Chimie, Boulogne-Billancourt, FR;
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 (1coating) 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 nm, 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 (2coating) 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).