Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From silicon reactant having at least one...
Reexamination Certificate
2006-08-22
2006-08-22
Moore, Margaret G. (Department: 1712)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From silicon reactant having at least one...
C528S034000
Reexamination Certificate
active
07094858
ABSTRACT:
A Process for the preparation of materials crosslinkable with elimination of alcohols to give elastomers, wherein(A) an organopolysiloxane having at least two hydroxyl groups,(B) trialkoxysilanes and/or the partial hydrolysis products thereof in an amount of at least 0.7 part by weight, based on 100 parts by weight of component (A),(C) an organosilicon compound which comprises at least one radical bonded to silicon via carbon and having basic nitrogen,(D) a tin catalyst, optionally,(E) fillers,(F) stabilizers and(G) further substancesare mixed with one another, (A) and (B) forming a reaction product with elimination of alkanol, with the proviso that tin catalyst (D) is added to the component (A) or the mixture containing the reaction product thereof only when from 1 to 60% of the Si—OH groups originally present remain present.
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Neuhauser Franz
Sixt Torsten
Brooks & Kushman P.C.
Moore Margaret G.
Wacker-Chemie GmbH
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