公开(公告)号：US11613644B2

公开(公告)日：2023-03-28

申请号：US16765785

申请日：2018-11-19

Applicant: BASF SE

Inventor： Matthias Zorn ,  Armin A. Burghart ,  Timo Mangel ,  Felix Laubersheimer

IPC: C08L33/14 ,  C08K3/013 ,  C08F220/18 ,  C08F2/00 ,  C08F8/30 ,  C08F220/06 ,  C08F220/14 ,  C08F220/34 ,  C08K3/22 ,  C08K3/26 ,  C08K3/34 ,  C08K5/3412 ,  C09D133/14

Abstract: The present invention relates to aqueous acrylic polymer latexes, which are suitable as binders in coating compositions for providing flexible roofing. The present invention also relates to coating compositions containing such binders, which are suitable for providing flexible roofing. The aqueous acrylic polymer latexes have a glass transition temperature Tg of at most from −10° C., in particular at most −20° C., or, in case of a multi-stage polymer latex a weight average glass transition temperature Tg of at most from −10° C., where the polymer of the acrylic polymer latex has a carbon polymer backbone formed by polymerized ethylenically unsaturated monomers M comprising acrylic monomers, and where the carbon polymer backbone bears functional groups of the formula (I) attached to carbon atoms of the polymer backbone *—C(═O)—O-[A-NH]nH (I) where the asterisk indicates the atom attached to a carbon atom of the polymer backbone, n is an integer, the number average of n in all functional groups of the formula (I) being >1, in particular at least 1.1 or at least 1.2 or at least 1.3, and A is selected from the group consisting of 1,2-ethandiyl or 1,2-propandiyl, where the functional groups of the formula (I) contribute to the total weight of the polymer in the acrylic polymer latex by 0.1 to 10% by weight.

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.

公开(公告)号：US20230250271A1

公开(公告)日：2023-08-10

申请号：US18134067

申请日：2023-04-13

Applicant: BASF SE

Inventor： Randall J. Petrie ,  Luke S. Egan ,  Sridhar G. Iyer ,  Armin A. Burghart ,  Jeremy J. Funk

IPC: C08L33/08 ,  C09D133/02 ,  C09D179/02 ,  C08L79/02 ,  C09D133/08 ,  C08F220/18 ,  C09D133/00

CPC classification number: C08L33/08 ,  C09D133/02 ,  C09D179/02 ,  C08L79/02 ,  C09D133/08 ,  C08F220/1804 ,  C09D133/00 ,  C08L33/02

Abstract: Disclosed herein are aqueous coating compositions containing an anionically stabilized polymer, one or more derivatized polyamines, and a volatile base. Coating compositions can further include one or more additional copolymers, which may or may not be anionically stabilized, and/or additional additives, including pigments, defoamers, pigment dispersing agents, thickeners, surfactants, and combinations thereof. By incorporating a derivatized polyamine, such as an alkoxylated polyamine, the setting time of the coating compositions can be decreased. Also provided are coatings formed from the coating compositions described herein, as well as methods of forming these coatings.