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US 7,125,922 B2Granted
Alkoxysilane dryer for crosslinkable polymer compounds
AssigneeDegussa AG
InventorsDieter Barfurth, Helmut Mack
Life of this patent
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Abstract
A composition containing an alkoxysiloxane including a catenate alkoxysilane of formula I and/or a cyclic siloxane of formula II, and a crosslinkable polymer compound and the use thereof as a water scavenger, dryer or precuring retarder R3Si—O—[SiR2—O—]mSiR3 (I)
Claims17
A composition, comprising:
- one or more alkoxysiloxane compound which is selected from the group consisting of catenate alkoxysiloxane compounds of fomula I
- R3Si—O—[SiR2—O—]mSiR3 (I)
- and cyclic siloxane compounds of formula II
- wherein m is an integer ranging from 0 to 40 and n is an integer from 2 to 40, groups R are identical or different and each is a hydrocarbon-functional group selected from the group consisting of vinyl, allyl, phenyl, n-alkyl, iso-alkyl, and cyclo-alkyl having from 1 to 18 carbon atoms or is an alkoxy group, wherein not more than one hydrocarbon-functional group is attached to each silicon atom, and a crosslinkable polymer.
1 more element
In a composition comprising at least one crosslinkable polymer and at least one crosslinking catalyst, wherein the improvement comprises:
- an alkoxysilane mixture comprising one or more catenate alkoxysiloxane compounds of formula I
- R3Si—O—[SiR2—O—]mSiR3 (I)
- and one or more cyclic siloxane compounds of formula II
- wherein m is an integer ranging from 0 to 40 and n is an integer ranging from 2 to 40, groups R are identical or different and each is a hydrocarbon-functional group selected from the group consisting of vinyl, allyl, phenyl, n-alkyl, iso-alkyl, and cyclo-alkyl having from 1 to 18 carbon atoms or is an alkoxy group, wherein not more than one hydrocarbon-functional group is attached to each silicon atom, each being present in an amount effective for drying or retarding procuring in said composition.
1 more element
Dependencies are inferred from the claim text.