HUT34524A - Process for the production of organic silicon polymers
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Process for the production of organic silicon polymers
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Publication number
HUT34524A
HUT34524AHU143883AHU143883AHUT34524AHU T34524 AHUT34524 AHU T34524AHU 143883 AHU143883 AHU 143883AHU 143883 AHU143883 AHU 143883AHU T34524 AHUT34524 AHU T34524A
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Application filed by Finomvegyszer SzfiledCriticalFinomvegyszer Sz
Priority to HU143883ApriorityCriticalpatent/HU193878B/en
Publication of HUT34524ApublicationCriticalpatent/HUT34524A/en
Publication of HU193878BpublicationCriticalpatent/HU193878B/en
Linear or branched organic silicone polymers having average mol. masses between 1000 and 10 million and which may carry various alkyl, aryl, aralkyl and/or alkenyl substds. and may or may not have reactive end gps. are prepd. by polycondensation and/or equilibration reactions between siloxane oligomers having silanol end gps. and opt. alkyl-chloro-silan and/or polysiloxane oligomers in the presence of 10-15 ppm oxo-halogen-acid or oxo-halogen-acid derivs. as catalysts and in the presence of organic-carboxylic acids or organic carboxylic-acid derivs. and/or alcohol or alcohol derivs. at 20-200 deg.C The reaction mixt. is subsequently neutralised with an inorganic or organic base.
HU143883A1983-04-271983-04-27Process for preparing organic silicon polymers
HU193878B
(en)