RTV-1 silicone elastomer compositions which crosslink by...

Details RTV-1 silicone elastomer compositions which crosslink by... RTV-1 silicone elastomer compositions which crosslink by...

2006-07-11

2006-07-11

Zimmer, Marc S (Department: 1712)

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

Synthetic resins

From silicon reactant having at least one...

C528S025000

Reexamination Certificate

active

07074875

ABSTRACT:
Crosslinkable RTV-1 compositions with enhanced physical properties include an alkoxy-functional polydiorganosiloxane having alkoxy-functional silyalkylene groups linked to a polydiorganosiloxane via ureaalkylene groups, prepared by reacting an α,ω-dihydroxyorganopolysiloxane with a silazaneand with a silane of formulain-line-formulae description="In-line Formulae" end="lead"?OCN—X-SirR1a(OR2)3-a,   (6)in-line-formulae description="In-line Formulae" end="tail"?where R0, R1, R2, and R3are optionally substituted hydrocarbon groups.

REFERENCES:
patent: 3146250 (1964-08-01), Speier
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patent: 5254657 (1993-10-01), Inoue
patent: 6534615 (2003-03-01), Schafer et al.
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Derwent Abstract corresponding to EP 559045 [AN 1993-281925].
Derwent Abstract corresponding to DE 3546376 [AN 1986-125089].

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