| 摘要 |
Dispersion (A), in a non-aqueous silicone medium (B), of particles (P) that consist of at least one acrylic polymer (I) that comprises a skeleton insoluble in (B) and a part, soluble in (B), consisting of side chains, bonded covalently to the skeleton. Dispersion (A), in a non-aqueous silicone medium (B), of particles (P) that consist of at least one acrylic polymer (I) that comprises a skeleton insoluble in (B) and a part, soluble in (B), consisting of side chains, bonded covalently to the skeleton. (I) is produced by radical polymerization of a monomer (M1), i.e. a 1-3C alkyl (meth)acrylate, optionally together with one or more of (meth)acrylic acid or (meth)acrylate esters of formula CH2=CR1-COOR2, to form the skeleton, and at least one silicone macromonomer (II) with an end group that reacts during polymerization to form the side chains. (II) has molecular weight of at least 200 and makes up 1-18 wt.% of (I). R1 = H or CH3; R2 = 1-6C linear or branched alkyl, including at least one oxygen and/or one or more of hydroxy, halo or NR'R'' substituents, or a 3-6C cycloalkyl, optionally containing one or more oxygen and/or substituted by one or more hydroxy or halo; and R', R'' = 1-3C alkyl. |
