公开(公告)号：US11505636B2

公开(公告)日：2022-11-22

申请号：US16463555

申请日：2017-11-21

Applicant: BASF SE

Inventor： Kostas S. Avramidis ,  Armin A. Burghart ,  Don M. Cho ,  Luke S. Egan ,  Vanessa Adams

IPC: C08F220/18 ,  C08F212/08 ,  C08F220/06 ,  C08F220/56 ,  C08F283/06 ,  C08F2/00 ,  C08F2/20 ,  C08F301/00 ,  C08G75/24 ,  C08G77/04 ,  C09D151/08

Abstract: The present disclosure relates to compositions comprising a copolymer derived from a vinyl aromatic monomer, a (meth)acrylate monomer, an acid monomer, and a copolymerizable surfactant and compositions comprising the same. The (meth)acrylate monomer can be selected from a monomer having a theoretical glass transition temperature (Tg) for its corresponding homopolymer of 0° C. or less or a hydrophobic (meth)acrylate monomer. In some embodiments, the copolymer is further derived from an organosilane. The copolymers can have a theoretical glass transition temperature (Tg) from −60° C. to 80° C. and a number average particle size of 250 nm or less. The compositions can be used to prepare compositions such as coatings that have improved water resistance, blush resistance, and/or resistance to hydrostatic pressures. Methods of making the copolymers are also provided.