POLYORGANOSILOXANE Russian patent published in 2015 - IPC C08G77/452 

FIELD: chemistry.

SUBSTANCE: invention relates to polyorganosiloxanes of specific structure, applied for hair styling. Claimed polyorganosiloxane is obtained by binding to, at least, two silicon atoms in polyorganosiloxane segment, which constitutes the main chain, of poly(N-acylalkylenimine) segment, consisting of repeated unit of formula (1), where R¹ stands for hydrogen atom or alkyl group, which has from 1 to 3 carbon atoms, and n equals 2 or 3, by means of alkylene group, containing heteroatom, with poly(N-acylalkylenimine) segment having number average molecular weight 1600-3500; weight ratio (a/b) of polyorganosiloxane segment (a), constituting the main chain, to poly(N-acylalkylenimine) segment (b) 42/58-58/42; polyorganosiloxane segment between two adjacent segments of poly(N-acylalkylenimine) has weight average molecular weight 1600-3500; and polyorganosiloxane segment, constituting the main chain, has weight average weight 7000-100000.

EFFECT: obtained polyorganosiloxane has high resilience modulus and is simultaneously capable of large deformations, which makes it possible to style hair and provide its preservation under impact of external factors.

3 cl, 1 tbl, 8 ex