Dow Corning Corporation

Iain A MacKinnon

Bizhong Zhu

Stephen E Cray

Pierre Maurice Chevalier

Helen L Gough

Genevieve Marie-Louise Emile Cerveau

Bertrand Francois Dabiens

Robert Jean-Pierre Corriu

A curable silicone resin composition comprises (A) an uncured silicone resin having units of the formula (R*) (R) SiO , where each R* is a functional group capable of reacting with Si&mdash;OH and/or Si-alkoxy groups and each R is a nonfunctional monovalent hydrocarbon group, a&plus;b is from 1.0 to 3.0 and each molecule of uncured silicone resin contains an average of at least two groups R*, and (B) a silanol or hydrolysable compound of the formula (I) where R&prime; represents a hydroxyl group or a hydrolysable group; each R&Prime; represents hydrogen, a monovalent hydrocarbon which optionally is substituted, or a group within the above definition of R&prime;; and Ar is a substantially nonflexible linkage including at least one para-arylene moiety, so that the groups (R&prime;) R&Prime;Si&mdash; are spatially separated.

Curable silicone resin composition and reactive silicon compounds

A method for preparing an aminoalkoxysiloxane comprises reacting a siloxane having at least one Si--X bond with an aminoalcohol of the general formula HO--R--NR.sup.1.sub.2 and removing HX from the reaction mixture, wherein X is a hydrogen atom, an --OH group or an --OC(O)NR.sup.1.sub.2 group, R is a divalent substituted or unsubstituted alkylene or arylene group, and R.sup.1 is a hydrogen atom or an alkyl group having from one to eighteen carbon atoms. The siloxane and aminoalcohol are preferably HO(Me.sub.2 SiO).sub.4.5 H and ethanolamine, (Me.sub.3 SiO).sub.2 MeSiH and ethanolamine, isopropanolamine or 3-aminopropan-1-ol, or Me.sub.3 SiO(Me.sub.2 SiO).sub.3 (MeHSiO).sub.5 SiMe.sub.3 and isopropanolamine respectively. The aminoalkoxysiloxanes thus prepared are useful for treating textile fabrics.

Method for preparing aminoalkoxysiloxanes

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Sully, United Kingdom

Iain A MacKinnon