公开(公告)号：US20190071545A1

公开(公告)日：2019-03-07

申请号：US16093437

申请日：2017-04-10

Applicant: BASF SE

Inventor： Gerhard ALBRECHT ,  Sophie PUTZIEN ,  Torben GAEDT ,  Michael DIETZSCH ,  Harald GRASSL ,  Iris LOESCHER ,  Luc NICOLEAU

IPC: C08J3/12 ,  C08J3/05 ,  C08K3/08 ,  C08K3/22 ,  C08K3/34 ,  C04B40/00 ,  C04B24/26 ,  C04B24/28

Abstract: The invention relates to a process for modifying polymer particles of an aqueous polymer dispersion in which positively or negatively charged polymer particles are provided with an inorganic salt shell. The inorganic shell leads to an improved drying ability and storage stability of the latex and improves the storage stability of the resulting polymer powder. The obtained polymer powder exhibits an improved viscosity and faster skin-forming time in the final application and is therefore particularly useful in a building material composition.

公开(公告)号：US20200207671A1

公开(公告)日：2020-07-02

申请号：US16620361

申请日：2018-06-06

Applicant: BASF SE

Inventor： Christian SCHMIDTKE ,  Ekkehard JAHNS ,  Torben GAEDT ,  Martin WINKLBAUER ,  Klaus SEIP ,  Iris LOESCHER

IPC: C04B40/00 ,  C04B26/06

Abstract: The present invention relates to a process for producing a redispersible dispersion powder, to the redispersible dispersion powder obtainable by this process, to an aqueous dispersion obtainable by step (1) of this process, and to a building material composition comprising the redispersible dispersion powder and/or the aqueous dispersion, to the use of the redispersible dispersion powder in a building material composition and to the use of the aqueous dispersion for production of a redispersible dispersion powder.

公开(公告)号：US20170022350A1

公开(公告)日：2017-01-26

申请号：US15301880

申请日：2015-03-25

Applicant: BASF SE

Inventor： Stefan FUELDNER ,  Iris LOESCHER

IPC: C08K5/07 ,  C08K5/1545 ,  B05D3/06 ,  C09J5/00 ,  C09D135/02 ,  C09J135/02 ,  C09D133/14 ,  C09J133/14

CPC classification number: C08K5/07 ,  B05D3/06 ,  C08K5/1545 ,  C09D133/14 ,  C09D135/02 ,  C09J5/00 ,  C09J133/14 ,  C09J135/02 ,  C09J2205/102 ,  C09J2205/31 ,  C09J2433/00 ,  G03F7/0295

Abstract: A photocurable composition is curable by exposure to visible light, and comprises a free-radical polymerizable compound and a photoinitiating system, the photoinitiating system comprising a) a dye which is excitable by visible light and has a triplet energy form 150 kJ/mol to 250 kJ/mol, such as Eosin Yellow and Fluorescein, and b) an α-halogen carbonyl compound. Preferably, the composition comprises a compound with a C—H-acidic hydrogen atom adjacent to at least one carbonyl group. The composition is cured by visible light in an oxygen-containing atmosphere and results in tack-free, colorless coatings.

Abstract translation: 可光固化的组合物可通过暴露于可见光固化，并且包含自由基可聚合化合物和光引发体系，该光引发体系包含a）可被可见光激发并具有150kJ / mol到250的三重态能量的染料 kJ / mol，如曙红和荧光素，和b）α-卤代羰基化合物。 优选地，组合物包含与至少一个羰基相邻的C-H-酸性氢原子的化合物。 通过可见光在含氧气氛中固化该组合物，并产生无粘性的无色涂层。