DK0637600T3 - New polyester polyurethanes, their preparation, pseudo-latexes made from these polyester polyurethanes and their use in cosmetic preparations - Google Patents

Abstract

Polyester-urethanes contg. units of formula -Ä-O-R<2>-O-(-C(O)-R<1>-C(O)-O-R<2>-O-)n-C(O)-NH-R-NH-C(O)-Ü- (I) and -Ä-O-A-O-C(O)-NH-R-NH-C(O)-Ü- (II) are new in which R = alkylene, cycloalkylene or divalent aromatic radical with 6-15 C, n = a whole number such that the unit has a mol. wt. of 400-5000, R<1> = a divalent radical chosen from (i) -(CH2)m- where m = an integer 2-12 and a gp. of formula (ii) in which the mobile bond is in the ortho, meta or para position, R<2> = a divalent radical chosen from gps. of formula -(-CH2-C(CH3)2-C(O)-O-)p-CH(R<3>)-C(R<4>)(R<5>)-CH2- (a), (b) or (c) in which R<3> = H or branched alkyl gp. with 1-3C, R<4> = H or linear or branched alkyl with 1-4C, R<5> = linear or branched alkyl with 1-4C and p = 0 or 1, and A = a 2-20C alkylene radical substd. by a carboxylic acid or sulphonic acid function, opt. in salt form, or interrupted by a tert. N atom, with a mol. ratio of units (II) to units (I) of 1-10, esp. 1-5. Also claimed are prepn. of the polyester-polyurethanes; pseudo-latexes prepd. from the polyester-polyurethanes; and a cosmetic compsn. contg. the pseudo-latex.