Poly(aminoorganofunctionalsiloxanes)

Details Poly(aminoorganofunctionalsiloxanes) Poly(aminoorganofunctionalsiloxanes)

C - Chemistry, Metallurgy

08

G

C08G 77/26 (2006.01) C07F 7/21 (2006.01) C08G 77/04 (2006.01) C08G 77/34 (2006.01)

Patent

CA 2341783

The present invention provides near quantitative yields of greater than about 95% isomeric purity of poly(3-aminopropylmethylsiloxanes) of the general formulae: Me3Si(H2NCH2CH2CH2MeSiO)x OSiMe3 (H2NCH2CH2CH2MeSiO)y wherein Me is methyl, x may range from 2 to about 100 and y may range from 3 to about 7. The present invention also provides a simple method for rapidly producing poly(3-amino- propylmethylsiloxanes) of the general formulae: Me3Si(H2NCH2CH2CH2MeSiO)x OSiMe3 (H2NCH2CH2CH2MeSiO)y wherein Me is methyl, x may range from 2 to over 100 and y may range from 3 to about 7, the method comprising heating of 3-(3-aminopropyl)-1,1,1,3,5,5,5- heptamethyltrisiloxane, of at least 95% isomeric purity, with a basic catalyst, removing hexamethyldisiloxane, and decomposing the catalyst.

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