C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
402/16, 117/185,
C08G 77/14 (2006.01) C08G 77/38 (2006.01) C08L 83/04 (2006.01) D06M 15/65 (2006.01)
Patent
CA 1234443
ORGANOPOLYSILOXANES HAVING Si-BONDED HYDROGEN AND SiC-BONDED EPOXY GROUPS AND A PROCESS FOR PREPARING THE SAME Abstract of the Disclosure Novel organopolysiloxanes are described in which the organopolysiloxanes are terminated by units of the formula R3SiO? and comprise units of the formulas RR1SiO, RR2SiO, RR3SiO, RHSiO and R2SiO, where R represents the same or dif- ferent alkyl radicals having from 1 to 4 carbon atoms per radical, or phenyl radicals, R1 represents the same or different alkyl radicals having at least 6 carbon atoms per radical, R2 represents the same or different aralkyl radicals and R3 repre- sents the same or different, SiC-bonded, monovalent organic radicals having at least one vicinal epoxy group per radical. These organopolysiloxanes are preferably prepared by reacting organopolysiloxanes which contain units of the formulas R3SiO? and RHSio and optionally units of the formula R2SiO, wherein R is the same as above, with an organic compound that has a termi- nal C=C-bond and at least one vicinal epoxy group per molecule, at least one alkene having at least 6 carbon atoms per molecule, and at least one aralkene in the presence of a catalyst which promotes the addition of Si-bonded hydrogen to the aliphatic C=C bond. These organopolysiloxanes may be applied simultaneously with a polymer having perfluoroalkyl groups with at least 3 carbon atoms per alkyl group to fibers to render them oil and water repellent.
488739
Huhn Karl
Kaufmann Rudolf
Bereskin & Parr Llp/s.e.n.c.r.l.,s.r.l.
Wacker-Chemie Gmbh
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