28.
    发明专利
    未知

    公开(公告)号:NO991527D0

    公开(公告)日:1999-03-29

    申请号:NO991527

    申请日:1999-03-29

    Applicant: BASF AG

    Abstract: A cosmetic composition comprising water-soluble copolymer, which as characteristic structural elements comprisesa) vinylcarboxamide units of the general formula IwhereR1 and R2 independently of one another are H, alkyl, cycloalkyl, aryl or aralkyl, andb) units of the general formula IIwhereA is a chemical bond or an alkylene group,the radicals R3 independently of one another are H, alkyl, cycloalkyl, aryl or aralkyl, or together with the nitrogen atom to which they are bonded, form an unsubstituted, mono- or polysubstituted, five- to seven-membered, heterocyclic, aromatic or nonaromatic ring, which if appropriate contains one or two further heteroatoms, selected from among O, N and S, it being possible for the heterocyclic ring to be fused to a further five- or six-membered, aromatic or nonaromatic ring,R4 is H, alkyl or aralkyl.

    30.
    发明专利
    未知

    公开(公告)号:DE50211299D1

    公开(公告)日:2008-01-10

    申请号:DE50211299

    申请日:2002-12-10

    Applicant: BASF AG

    Abstract: New water-soluble or -dispersible copolymer (I) is produced by polymerizing an N-vinyl lactam and a comonomer, in the presence of a polyether or polyvinyl alcohol, and polymerizing an anionic monomer in the presence of the product. New water-soluble or -dispersible copolymer produced by a two-stage radical polymerization of a monomer mixture comprising (wt.%): (1) N-vinyl lactam (20-99.9); (2) an alpha , beta -unsaturated anionic monomer (0.1-30); (3) a monomer of formula (II) or (II) or an alpha , beta -unsaturated anionic or cationic monomer (0.1-65); and (4) comonomer(s) (0-15). The polymerization is in the presence of a polyether or a polymer (5) comprising at least 50 wt.% vinyl alcohol units. Monomer (1) and at least part of monomer (3) are polymerized in the presence of at least part of component (5), after which monomer (2) and optionally (4) and any remaining monomer (3) and component (5) are added and polymerized. R1 = CH2=CR3; R3 = H or 1-4C alkyl; R2 = H, alkyl, hydroxyalkyl, aminoalkyl, N-alkylaminoalkyl, N,N-dialkylaminoalkyl or a polyether group of at least 5 alkylene oxide units; X = O or NR4; and R4 = H, 1-7C alkyl or a polyether group of at least 5 alkylene oxide units. An Independent claim is also included for a cosmetic or pharmaceutical composition comprising (I).

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