Drug – bio-affecting and body treating compositions – Solid synthetic organic polymer as designated organic active... – Polymer from ethylenic monomers only
Patent
1989-02-02
1990-05-15
Schofer, Joseph L.
Drug, bio-affecting and body treating compositions
Solid synthetic organic polymer as designated organic active...
Polymer from ethylenic monomers only
424 70, 424 47, 424DIG2, 424DIG1, 524265, 514880, 514881, A61K 3174, A61K 706, A61K 700
Patent
active
049256599
ABSTRACT:
Use in cosmetics of diorganopolysiloxanes containing a .beta.-keto ester group, corresponding to the formula: ##STR1## in which: the groups R, which may be identical or different, denote, independently of one another, a C.sub.1 -C.sub.4 alkyl, 3,3,3-trifluoropropyl, vinyl or phenyl groups, at least 80%, in numerical terms of the groups R being methyl radicals;
the groups Y, which may be identical or different, denote, independently of one another, a C.sub.1 -C.sub.18 linear or branched alkylene link, optionally extended by a polyether chain;
the groups X, which may be identical or different, denote, independently of one another, a radical Y--OH or Y--OCOR', Y having the meaning stated above and R' being chosen from C.sub.1 -C.sub.18 linear or branched alkyl or alkenyl groups;
the groups Z, which may be identical or different, denote, independently of one another, a group R as defined above or alternatively a radical ##STR2## Y having the meaning stated above, it also being possible for Z to denote a group OR' in which R' has the meaning stated above;
p is an integer between 1 and 50 inclusive, and preferably between 1 and 16 inclusive;
q is an integer between 0 and 30 inclusive, and preferably between 0 and 8 inclusive; and
r is an integer between 0 and 500 inclusive, and preferably between 2 and 50 inclusive;
or a mixture of these copolymers of formula (I), in which case p, q and r can be decimal numbers.
REFERENCES:
patent: 4744978 (1988-05-01), Homan et al.
patent: 4808649 (1989-02-01), Gay et al.
Dubief Claude
Grollier Jean F.
"L'Oreal"
Pili-Curtis Carmen
Schofer Joseph L.
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