Patent ES-8504228-A1 (ES)
Title: Polymer binders contg. lightly crosslinked rheology controllers
IPC: C08L25/10
Filed: 1983-06-17
Abstract: EP--93206 A Polymeric binders (I) for coating colours contain a rheology control polymer (II) comprising a lightly cross-linked copolymer of an unsatd. carboxylic acid, carboxylic acid ester, carboxamide and opt. other monomers. (I) are esp. copolymers based on (a) monovinylidene aromatics and conjugated dienes, or (b) unsatd. carboxylic acid esters and comonomers which have water-insol. homopolymers. (II) esp. have 0.01-10 wt.% cross-linking monomer. The mixts. esp. contain 3-50 wt.5 (II) and they are included as binders in paper coatings comprising aq. suspensions of pigments and/or fillers. - Coated papers have high binding strengths and excellent printability in rotogravure process.  (0/0) EPAB- EP--93206 B Polymeric binders (I) for coating colours contain a rheology control polymer (II) comprising a lightly cross-linked copolymer of an unsatd. carboxylic acid, carboxylic acid ester, carboxamide and opt. other monomers. (I) are esp. copolymers based on (a) monovinylidene aromatics and conjugated dienes, or (b) unsatd. carboxylic acid esters and comonomers which have water-insol. homopolymers. (II) esp. have 0.01-10 wt.% cross-linking monomer. The mixts. esp. contain 3-50 wt.5 (II) and they are included as binders in paper coatings comprising aq. suspensions of pigments and/or fillers. - Coated papers have high binding strengths and excellent printability in rotogravure process.  (20pp Dwg.No.0/0) - EP--93206 B A polymeric composition useful as the binder component in a coating colour, the polymeric composition being composed of a binder copolymer and a rheology control copolymer, characterised in that the binder copolymer is derived from a monovinylidene aromatic, a conjugated diene and, optionally, other copolymerisable monomers and the rheology control copolymer is an aqueous dispersed rheology control copolymer of an alpha, beta-ethylenically unsaturated carboxylic acid, an ester of an alpha, beta-ethylenically unsaturated carboxylic acid, an unsaturated carboxamide, an unsaturated nitrile, from 0.01 to 10 weight percent of a cross-linking monomer, said weight percent being based on the total weight of the rheology control copolymer, and, optionally one or more copolymerisable monomers. - (19pp) USAB- US4602059 A A polymeric compsn. useful as a coating colour, comprising based on 100 pts.wt., 50-97 pts.wt. of a binder copolymer (I) and 3-50 pts.wt. of a rheology control copolymer (II). (I) 60 wt.% or more, in polymerised forms of 10-90 wt.% monovinylidene aromatic and 10-90 wt.% conjugated diene, and optis, in polymerised form, up to 20 wt.% of an alpha, beta-ethylenically unsatd. carboxylic acid and up to 20 wt.% of other copolymerised monomers; and (II) 40-90 wt.% of an ester of an alpha,beta-ethylenically unsatd. carboxylic acid, 1-30 wt.% of an alpha,beta-ethylenically unsatd. carboxylic acid, 5-15 wt.% of an ethylenically unsatd. carboxamide, 0.5-20 wt.% of an unsatd. nitrile, and 0.01-10 wt.% of a crosslinking monomer, and optis 0-20 wt.% of other copolymerisable monomers. - Pref. (I) comprises 50-70 wt.% styrene, 30-50 wt.% of 1,3-butadiene and 1-5 wt.% of itaconic and/or acrylic acid. Pref. (II) comprises 50-70 wt.% ethyl (meth)acrylate, 10-20 wt.% of (meth)acrylic acid, 10-20 wt.% of acrylonitrile, 8-15 wt.% of acrylamide, and 0.05-5 wt.% allyl (meth)acrylate.