公开(公告)号：US10336912B2

公开(公告)日：2019-07-02

申请号：US15500821

申请日：2015-07-29

Applicant: BASF SE

Inventor： Ekkehard Jahns ,  Timo Mangel ,  Christine Roesch ,  Paola Romanato ,  Yeni Burk ,  Joachim Pakusch

IPC: C08K5/42 ,  C09D175/08 ,  C08F2/16 ,  C08G18/66 ,  C08G18/72 ,  C08G18/75 ,  C08F283/00 ,  C08G18/08 ,  C08G18/12 ,  C08G18/22 ,  C08G18/24 ,  C08G18/28 ,  C09D175/06 ,  C08G18/42 ,  C09D7/61 ,  C08G18/32 ,  C08G18/40 ,  C08K3/00 ,  E04D7/00

Abstract: The present invention provides an aqueous polyurethane (PU)-polyacrylate hybrid dispersion obtainable by free radical polymerization of at least one acrylate polymer (A1) in the presence of at least one polyurethane (P1), a process for preparing these aqueous polyurethane-polyacrylate hybrid dispersions, wherein said process comprises a) preparing an aqueous polyurethane dispersion and b) using the polyurethane dispersion thus prepared as raw material for the further synthesis of a polyacrylate dispersion, and the use of the hybrid dispersion thus obtained as binder in filled coating materials, particularly as a binder for flexible roof coatings.

公开(公告)号：US11674048B2

公开(公告)日：2023-06-13

申请号：US16643079

申请日：2018-08-29

Applicant: BASF SE

Inventor： Ekkehard Jahns ,  Timo Mangel ,  Yeni Burk ,  Joachim Pakusch

IPC: C09D133/08 ,  C08K3/013 ,  C08F220/18 ,  C08F20/12 ,  C08K3/30 ,  C08L21/02 ,  C08L25/06 ,  C08L35/06 ,  C08L71/02 ,  C08F12/08

CPC classification number: C09D133/08 ,  C08F12/08 ,  C08F20/12 ,  C08F220/1804 ,  C08K3/013 ,  C08K3/30 ,  C08L21/02 ,  C08L25/06 ,  C08L35/06 ,  C08L71/02 ,  C08K2003/3045

Abstract: The present invention relates to the use of liquid aqueous polymer compositions containing an aqueous polymer latex and at least one inorganic particulate material for providing flexible roof coatings. The present invention also relates to a method for providing flexible roof coatings, which comprises applying said liquid aqueous polymer compositions to a flat roof. The liquid aqueous polymer composition contain, a. an aqueous polymer latex, where the polymer in the polymer latex is made of polymerized monomers M, where the polymerized ethylenically unsaturated monomers M comprise a combination of) at least two different monoethylenically unsaturated, non-ionic monomers M1, whose homopolymers have a theoretical glass transition temperature Tg(th) of at least 25° C. and ii) at least two different monoethylenically unsaturated, non-ionic monomers M2, whose homopolymers have a theoretical glass transition temperature Tg(th) of at less than 25° C., where each of the monomers M1 and M2 have a solubility in deionized water of at most 50 g/L and where the total amount of monomers M1 and M2 contributes with at least 90% by weight to the total amount of the monomers M, and b. at least one inorganic particulate material selected from inorganic pigments, inorganic fillers and mixtures thereof.