摘要:
The present invention describes linear or star block copolymers, their process of preparation and their use in adhesive compositions, in particular as pressure-sensitive adhesive. The copolymers of the invention are prepared by controlled radical polymerization by nitroxides; they exhibit at least one soft block with a Tg of less than 0° C. and at least one hard block with a Tg of greater than ambient temperature.
摘要:
The present invention describes linear or star block copolymers, their process of preparation and their use in adhesive compositions, in particular as pressure-sensitive adhesive. The copolymers of the invention are prepared by controlled radical polymerization by nitroxides; they exhibit at least one soft block with a Tg of less than 0° C. and at least one hard block with a Tg of greater than ambient temperature.
摘要:
The invention relates to a linear ethylenic block copolymer comprising: at least a first block A having a glass transition temperature above 20° C.; at least a second block B having a glass transition temperature below 15° C.; and at least a third block C having a glass transition temperature above 20° C.; said first block A and third block C being identical or different and at least one of them comprising at least one monomer unit comprising at least one —CO2H and/or carboxylate —COO− functional group. Use of this copolymer in adhesive compositions and thermoplastic compositions.
摘要:
The present invention relates to a linear ethylenic block copolymer comprising in each block at least one ionic hydrophilic unit, which may be different from one block to another, the said ionic hydrophilic unit being present in each block in a proportion of from 2% to 100% by weight relative to the weight of the said block.The invention also relates to a cosmetic or pharmaceutical composition comprising such a copolymer, and also to a cosmetic process for making up or caring for keratin materials using the said composition.
摘要:
The present invention relates to a linear ethylenic block copolymer comprising in each block at least one ionic hydrophilic unit, which may be different from one block to another, the said ionic hydrophilic unit being present in each block in a proportion of from 2% to 100% by weight relative to the weight of the said block.The invention also relates to a cosmetic or pharmaceutical composition comprising such a copolymer, and also to a cosmetic process for making up or caring for keratin materials using the said composition.
摘要:
The present invention relates to a linear ethylenic block copolymer comprising in each block at least one ionic hydrophilic unit, which may be different from one block to another, the said ionic hydrophilic unit being present in each block in a proportion of from 2% to 100% by weight relative to the weight of the said block.The invention also relates to a cosmetic or pharmaceutical composition comprising such a copolymer, and also to a cosmetic process for making up or caring for keratin materials using the said composition.
摘要:
The present invention relates to a linear ethylenic block copolymer comprising in each block at least one ionic hydrophilic unit, which may be different from one block to another, the said ionic hydrophilic unit being present in each block in a proportion of from 2% to 100% by weight relative to the weight of the said block. The invention also relates to a cosmetic or pharmaceutical composition comprising such a copolymer, and also to a cosmetic process for making up or caring for keratin materials using the said composition.
摘要:
The invention relates to a method for preparing a living polymer comprising methacrylic and/or methacrylate units using a monofunctional or polyfunctional alkoxyamine consisting in polymerising one or several types of methacrylic an/or methacrylate units.
摘要:
The present invention relates to the use of composites based on carbon nanotubes as viscosity enhancers for aqueous solutions, characterized in that said composite comprises carbon nanotubes (CNTs) and at least one hydrophilic (co) polymer.More particularly, the invention relates to the use of the composites described above as viscosity enhancers in industrial sectors such as, especially, the papermaking sector, and in particular for coating paper and for weighting paper, in the oil sector, or else in the paint, water-treatment, detergent, ceramic, cement, hydraulic-binder, public-works, ink, varnish and textile-sizing sectors.
摘要:
The present invention describes the use of copolymers with a composition gradient as sole stabilizer in emulsion free-radical polymerization. The copolymers of the invention are prepared via controlled free-radical polymerization and comprise at least one hydrophilic monomer such as acrylic acid and at least one hydrophobic monomer such as styrene.