POLYMER MADE FROM MALEIC ACID, ALLYL ETHER, AND VINYL ACETATE, PRODUCTION OF SAID POLYMER, AND USE OF SAID POLYMER

摘要

Polymer comprising (in mole%) (a) at least one ethane structural unit (I) (m, preferably 20-85), (b) at least one allyl ether structural unit (II) (n, preferably 10-50), (c) at least one 1-acetoxyethane-1,2-diyl structural unit (o, preferably 5-50), and optionally (d) at least one further structural unit (p, preferably 0-20), where the sum of the weights of the units (a), (b), (c) and (d) is 100 mole%, is new. Polymer comprising (in mole%) (a) at least one ethane structural unit of formula (-(CH(R1)-CH(R2)-) (I) (m, preferably 20-85), (b) at least one allyl ether structural unit of formula (-(CH 2-C(R3)(CH 2-O-R4)-) (II) (n, preferably 10-50), (c) at least one 1-acetoxyethane-1,2-diyl structural unit (o, preferably 5-50), and optionally (d) at least one further structural unit (p, preferably 0-20), where the sum of the weights of the units (a), (b), (c) and (d) is 100 mole%, is new. R1, R2 : COO-M or COOR4; R3 : H or CH 3; R4 : -(R5) r-(AO) q-R6; R5 : 1-6C alkylene; R6 : H, 1-20C alkyl or 7-20C alkylaryl; A : 2-4C alkylene; q : 2-300; r : 0-1; and M : H +>, alkali metal cation, alkaline earth metal cation, divalent or trivalent metal cation, NH4 +>or organic ammonium, preferably H +>, Na +>, Ca 2> +>, Mg 2> +>, NH 4 +>or organic ammonium. Independent claims are also included for: (1) preparing the polymer; (2) a hydraulically setting composition comprising at least one above polymer; and (3) preparing the hydraulically setting composition with extended processability, comprising mixing a hydraulically setting binder, water and the above polymer.