11-05-2017 дата публикации
Номер: US20170129812A1
Принадлежит:
The present invention relates to a composition comprising (α) at least one inorganic binder and (β) at least one water-soluble copolymer based on (a) 0.1 to 20 wt % of at least one monomer of the formula (I) and (b) 25 to 99.9 wt % of at least one hydrophilic monomer (b) which is different from monomer (a), where the at least one copolymer has a molar mass average M of 1 500 000 to 30 000 000 g/mol. Furthermore, a process for producing this composition is disclosed. A further aspect of the present invention is the use of the copolymer of component (β) as rheological additive in a composition of the invention. 1. A composition comprising(α) at least one inorganic binder {'br': None, 'sub': 2', '2', '2', 'k', '2', 'l', '2', '2', 'm, 'sup': 1', '2', '3', '4, 'HC═C(R)—R—O—(—CH—CH—O—)—(—CH—CH(R)—O—)—(—CH—CH—O—)—R\u2003\u2003 (I)'}, '(a) 0.1 to 20 wt % of at least one monomer of the formula (I),'}, '(β) at least one water-soluble copolymer based on'}{'sub': 2', '2', 'k', '2', 'l, 'sup': '3', 'where the units —(—CH—CH—O—), —(—CH—CH(R)—O—)and'}{'sub': 2', '2', 'm, 'claim-text': and the radicals have the following meanings:', 'k: is from 10 to 150;', '1: is from 5 to 25;', 'm: is from 1 to 15;', {'sup': '1', 'R: is H or methyl;'}, {'sup': '2', 'sub': n', '2n', 'n′', '2n′', 'n″', '2n″, 'the radicals R: are each, independently of one another, a single bond or a divalent, linking group selected from the group consisting of —(CH)— and —O—(CH)— and —C(O)—O—(CH)—, where n, n′ and n″ are each a natural number from 1 to 6;'}, {'sup': 3', '3′', '3′', '3', '3, 'sub': 2', '2', 'l, 'R: is a hydrocarbon radical having at least 2 carbon atoms or an ether group of the general formula —CH—O—R, where R is a hydrocarbon radical having at least 2 carbon atoms and the radicals Rcan be identical or different within the group —(—CH—CH(R)—O—);'}], '—(—CH—CH—O—)are arranged in a block structure in the order shown in formula (I)'}{'sup': '4', 'the radicals R: are each, independently of one another, ...
Подробнее
