公开(公告)号：US09657137B2

公开(公告)日：2017-05-23

申请号：US14652244

申请日：2013-12-13

Applicant: BASF SE

Inventor： Christian Bittner ,  Björn Langlotz ,  Benjamin Wenzke ,  Christian Spindler ,  Roland Reichenbach-Klinke ,  Markus Klumpe ,  Nicole Meier ,  Ulrich Annen ,  Thomas Ostrowski

IPC: C08G65/26 ,  C08F216/14 ,  C08F290/06

CPC classification number: C08G65/2696 ,  C08F216/1416 ,  C08F290/062 ,  C08F2216/1425 ,  C08G65/2609 ,  C08G65/2648 ,  C08G2650/36 ,  C08F220/58 ,  C08F2220/585 ,  C08F220/56

Abstract: The present invention relates to a process for preparing hydrophobically associating macromonomers M and to the novel macromonomers prepared by means of the process according to the invention. The macromonomers M comprise a copolymerizable, ethylenically unsaturated group and a polyether structure in block form, the latter consisting of a polyethyleneoxy block and a hydrophobic polyalkyleneoxy block consisting of alkyleneoxy units having at least 4 carbon atoms. Optionally, the macromonomers M may have a terminal polyethyleneoxy block. The macromonomers prepared by the process according to the invention are suitable for reaction with further monomers, especially with acrylamide, to give a water-soluble, hydrophobically associating copolymer.