Pigment dispersants universal compatibility.
1995
The invention discloses copolymers P as dispersants for dyes and / or pigments in plastics FOR STANDARD SK, where P UNIVERSALLY TOLERANT WITH SK PLASTICS, with the characteristic that the copolymer P comprises Monomers (M1) 30 to 94.5% by weight of methyl methacrylate (M2) 5 to 50% by weight of (meth) acrylate of formula I: wherein R1 is hydrogen or methyl and R2 is a CILOALQUILO moiety substituted with 5 to 7 carbon atoms in the ring, (M3) 0.5 to 20% by weight of the compound of formula II: where: R3 is hydrogen or methyl, R4 is a substituent, containing at least one oxygen atom and / or nitrogen atoms and z is O, NH or NR5 wherein R5 is an alkyl 1 to 6 carbon atoms, or R5 = R4, and in a particular case (M4) 0.5 to 30% by weight of mETHACRYLATE formula III wherein: R6 is an alkyl radical having 3 to 24 carbon atoms branched / or substituted; AND monomer units (M1), (M2), (M3) and IF (M4) total 100% by weight.
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