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Title: Polysiloxane compounds containing hydroxyl groups

Abstract: Polysiloxanes containing hydroxyl groups are manufactured by reacting polysiloxanes containing alkoxy groups with aliphatic or cycloaliphatic-alipatic diols in the presence of a catalyst at elevated temperatures. The new polysiloxanols can be used as modifiers for organic resins, such as urethane resins or epoxide resins, and give flexible hydrophobic plastics having valuable mechanical properties.


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Inventors: Lohse, Friedrich (Oberwil, CH)
Rembold, Heinz (Arlesheim, CH)
Baumann, Dieter (Birsfelden, CH)
Munk, Kurt (Wyhlen, DT)

Application Number: 558987
Filing Date: 1975-03-17
Publication_date: 1976-08-24
Assignee: Ciba-Geigy Corporation (Ardsley, NY)
Primary Class(es): 556/449
Other Classes:
US Patent Ref:
3293211Dec, 1966Krimm et al.260/448.
3317460May, 1967Clark et al.260/448.
3576028Apr, 1971Fish260/448.
3600418Aug, 1971Bailey et al.260/448.

Other Refs: 341,816
Jun, 1972SU

Primary Examiner: Shaver, Paul F.
Assistant Examiner:
Attorney: Hall; Luther A. R.