Phosphonic copolymer and use thereof in the cosmetics field
申请人:L'OREAL
公开号:US10632058B2
公开(公告)日:2020-04-28
The invention relates to a copolymer resulting from the polymerization of:
(i) 70% to 95% by weight, of the total weight of the monomers, of isobornyl (meth)acrylate;
(ii) 1% to 30% by weight of vinylphosphonic acid monomer;
(iii) 0 to 20% by weight of an additional monomer.
The invention also relates to a cosmetic composition comprising the copolymer and to a cosmetic process for caring for or making up keratin materials, comprising the topical application of the composition to the keratin materials.
It also relates to the use of the copolymer as a skin-tensioning agent.
Hair dyeing process comprising a phosphonic ethylenic polymer and a pigment
申请人:L'OREAL
公开号:US10874602B2
公开(公告)日:2020-12-29
Hair dyeing process comprising a phosphonic ethylenic polymer and a pigment The invention relates to a process for dyeing hair comprising at least one pigment and at least one phosphonic polymer derived from the polymerization of: (a) 45% to 95% by weight of ethylenic monomer bearing an at least C8 linear or branched alkyl group; (b) 5% to 25% by weight of vinylphosphonic acid monomer; (c) 0 to 50% by weight of additional monomer chosen from: (i) linear or branched C1-C6 alkyl (meth)acrylate or C6-C12 cycloalkyl (meth)acrylate non-silicone monomers; (ii) specific polydimethylsiloxane silicone monomers bearing a mono(meth)acryloyloxy end group.
Hair dyeing process comprising a block polymer bearing phosphonic acid groups and a pigment
申请人:L'ORÉAL
公开号:US10959935B2
公开(公告)日:2021-03-30
The invention relates to a hair dyeing process comprising at least one pigment, at least one additional component selected from cross linking agents and/or plasticizers and at least one block polymer comprising: a first block with a glass transition temperature (Tg) of greater than or equal to 40° C. derived from a monomer CH2═C(R1)—COOR2 in which R1=H or methyl, R2=C4 to C12 cycloalkyl group; and a second block with a glass transition temperature (Tg) of less than or equal to 20° C. derived from a vinylphosphonic acid and from a monomer CH2=C(R1)—COOR3 in which R1=H or methyl, R3=linear or branched C1 to C6 unsubstituted alkyl group, with the exception of a tert-butyl group or a methoxyethyl group.
Phosphonic ethylenic polymer and cosmetic uses thereof
申请人:L'OREAL
公开号:US11207260B2
公开(公告)日:2021-12-28
The invention relates to a cosmetic process for caring for or making up keratin materials, comprising the topical application to the keratin materials of a cosmetic composition comprising a phosphonic polymer derived from the polymerization of: (a) 45% to 95% by weight of ethylenic monomer bearing an at least C8 linear or branched alkyl group; (b) 5% to 25% by weight of vinylphosphonic acid monomer; (c) 0 to 50% by weight of additional monomer chosen from linear or branched C1C6 alkyl (meth)acrylates, C6-C12 cycloalkyl (meth)acrylates, and polydimethylsiloxanes bearing a mono(meth)acryloyloxy end group, optionally combined with an additional compound chosen from polyamine compounds bearing several primary amine and/or secondary amine groups, aminosilanes, salts of divalent or trivalent metal ions, clays and metal oxides. The process makes it possible to obtain a film-forming deposit that has good resistance to water, to oil and to sebum. The film is also non-tacky and transfer-resistant. The invention also relates to polymers containing the three monomers (a), (b) and (c).