METHOD OF PRODUCING HYDROXYL-CONTAINING POLYMETHYLSILOXANES Russian patent published in 2019 - IPC C08G77/04 C08G77/06 C08G77/44 

Abstract RU 2697476 C1

FIELD: technological processes.

SUBSTANCE: invention relates to methods of producing organosilicon compounds. Disclosed is a method of producing cyclolinear polydimethylsiloxanes containing hydroxyl groups in silicon atoms in a cyclic fragment by reacting α,ω-dichloropolymethylsiloxane with cyclic polyols of general formula [C6H5Si(O)OH]n, where n is equal to 4, 6 or 12, in the presence of an acceptor. Molar ratio of reagents ranges from 1:1 to 1:2.

EFFECT: method enables controlled modification of polydimethyl siloxane by hydroxyl groups.

1 cl, 2 dwg, 1 tbl, 5 ex

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RU 2 697 476 C1

Authors

Muzafarov Aziz Mansurovich

Kalinina Aleksandra Aleksandrovna

Polyakov Gleb Viktorovich

Bystrova Aleksandra Valerevna

Shchegolikhina Olga Ivanovna

Dates

2019-08-14Published

2018-12-29Filed