中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

68 records (took 0.021 seconds)

    Aqueous multistage polymer dispersion, process for its preparation and use thereof as binder for coating substrates
    22.
    发明专利
    Aqueous multistage polymer dispersion, process for its preparation and use thereof as binder for coating substrates 未知

    公开(公告)号：NZ614963A

    公开(公告)日：2014-11-28

    申请号：NZ61496312

    申请日：2012-03-22

    Applicant: BASF SE

    Inventor： BALK ROELOF ,  TUCHBREITER ARNO ,  LOHMEIJER BAS

    IPC: C08F265/02 ,  B27K3/00 ,  C08F2/22 ,  C08F8/44 ,  C08F265/06 ,  C08F265/10 ,  C09D151/00

    Abstract: The disclosure relates to a process for preparing a polymer dispersion obtained by at least two-stage emulsion polymerization. The first stage comprises forming in an aqueous medium a first polymer having a glass transition temperature of more than 50°C and a weight-average molecular weight of between 5 and 100 kDa is prepared by free-radical emulsion polymerization from a first composition comprising hydrophilic and hydrophobic monomers, comprising (A1) at least one (meth)acrylic acid alkyl ester, (B1) optionally at least one vinylaromatic having up to 20 C atoms, (C1) optionally at least one free-radically polymerizable compound selected from the 15 group consisting of ethylenically unsaturated nitriles having up to 20 C atoms, vinyl esters of carboxylic acids comprising up to 20 C atoms, vinyl halides having up to 10 C atoms, and vinyl ethers of alcohols containing 1 to 10 C atoms, (D1) at least one a,B-ethylenically unsaturated carboxylic acid, or a vinyl monomer with latent ionic groups, (E1) optionally at least one crosslinker, (F1) at least one compound selected from the group consisting of 2-(2-oxoimidazolidin-1-yl)ethyl (meth)acrylate, 2-ureido(meth)acrylate, acetoacetoxyethyl acrylate, acetoacetoxypropyl methacrylate, acetoacetoxybutyl methacrylate, 2-(acetoacetoxy)ethyl methacrylate, diacetoneacrylamide (OAAM), and 25 diacetonemethacrylamide, (G1) optionally at least one compound having a (meth)acrylate group and an epoxy group, and (H1) optionally at least one a,B-ethylenically unsaturated carboxamide, in the presence of at least one initiator, at least one emulsifier, and at least one chain transfer agent, neutralization to a pH of at least 4.5 of the particles thus formed, using a base (neutralizing agent), followed by free-radical polymerization of hydrophobic and hydrophilic monomers in a following stage, in the presence of the copolymer prepared in the first stage, from (A2) at least one (meth)acrylic acid alkyl ester, (B2) optionally at least one vinylaromatic having up to 20 C atoms, (C2) optionally at least one free-radically polymerizable compound selected from the group consisting of ethylenically unsaturated nitriles having up to 20 C atoms, vinyl esters of carboxylic acids comprising up to 20 C atoms, vinyl halides having up to 10 C atoms, and vinyl ethers of alcohols containing 1 to 10 C atoms, (02) optionally at least one a,B-ethylenically unsaturated carboxylic acid, or a vinyl monomer with latent ionic groups, (E2) optionally at least one crosslinker, and (F2) optionally at least one compound selected from the group consisting of 2-(2- 5 oxoimidazolidin-1-yl)ethyl (meth)acrylate, 2-ureido(meth)acrylate, acetoacetoxyethyl acrylate, acetoacetoxypropyl methacrylate, acetoacetoxybutyl methacrylate, 2-(acetoacetoxy)ethyl methacrylate, diacetoneacrylamide (OAAM), anddiacetonemethacrylamide, (G2) optionally at least one compound having a (meth)acrylate group and an epoxy group, and (H2) optionally at least one a,B-ethylenically unsaturated carboxamide, with the proviso that the polymer of the 2nd stage is more hydrophobic than that of the 1st stage, and the glass transition temperature of the second stage is at least 50°C lower than that of the first stage.

    Composición de agente aglutinante acuosa
    23.
    发明专利
    Composición de agente aglutinante acuosa 未知

    公开(公告)号：ES2403641T3

    公开(公告)日：2013-05-20

    申请号：ES06806990

    申请日：2006-10-05

    Applicant: BASF SE

    Inventor： BALK ROELOF ,  DERSCH ROLF ,  DITTRICH UWE

    IPC: C09D133/06 ,  C09D5/02 ,  C09D125/14 ,  C09D167/08

    Abstract: Composición de agente aglutinante acuosa que contiene a) al menos un polímero en emulsión que contiene como componentes monómeros un (met)acrilato dealquilo con 1 a 8 átomos de carbono, un compuesto aromático vinílico con hasta 20 átomos de carbono, omezclas de los mismos, b) al menos una resina alquídica hidrosoluble con un peso molecular promedio en peso entre 5000 y 40 000Da, así como c) al menos una resina alquídica con un peso molecular promedio en peso mayor que 100 000 Da en formade una emulsión acuosa, caracterizado porque el contenido en producto sólido de la mezcla de (a), (b) y (c)es menor que un 60 % en peso.

    Finely divided aqueous multistage polymerizate dispersion, method for the production thereof, and use thereof as a binder
    28.
    发明专利
    Finely divided aqueous multistage polymerizate dispersion, method for the production thereof, and use thereof as a binder 未知

    公开(公告)号：AU2017234180B2

    公开(公告)日：2021-05-20

    申请号：AU2017234180

    申请日：2017-03-14

    Applicant: BASF SE

    Inventor： BALK ROELOF ,  LOHMEIJER BASTIAAN ,  WRAZIDLO ROBERT

    IPC: C08F265/06 ,  C09D151/00

    Abstract: The invention relates to a very finely divided polymerizate dispersion, which can be obtained by means of at least a two-stage emulsion polymerization, wherein 1) an acid-rich first polymerizate P1 is produced from a first composition by radical polymerization, the first composition comprising A) at least one monomer selected from the group of the (meth)acrylic acid (cyclo)alkyl esters, the vinyl aromatics having up to 20 C atoms, a radically polymerizable compound selected from the group of the ethylenically unsaturated nitriles having up to 20 C atoms, vinyl esters of carboxylic acids containing up to 20 C atoms, vinyl halogenides having up to 10 C atoms, and vinyl ethers of alcohols containing 1 to 10 C atoms, B) at least one α,β-ethylenically unsaturated carboxylic acid, C) at least one cross-linking monomer having a keto group or aldehyde group, D) optionally at least one adhesion promoter, E) optionally t-butyl acrylate, F) optionally further monomers M, in the presence of a chain length regulator, 2) the polymerizate P1 produced under 1) is mixed with a base, 3) a hydrophobic polymerizate P2 is produced from a second composition by radical polymerization in the presence of the polymerizate P1 treated under 2), the second composition comprising A) at least one monomer selected from the group of the (meth)acrylic acid (cyclo)alkyl esters, the vinyl aromatics having up to 20 C atoms, a radically polymerizable compound selected from the group of the ethylenically unsaturated nitriles having up to 20 C atoms, vinyl esters of carboxylic acids containing up to 20 C atoms, vinyl halogenides having up to 10 C atoms, and vinyl ethers of alcohols containing 1 to 10 C atoms, B) optionally at least one α,β-ethylenically unsaturated carboxylic acid, C) at least one cross-linking monomer having a keto group or aldehyde group, D) optionally at least one adhesion promoter, and E) optionally further monomers M, 4) and by optionally adding a water-soluble at least trifunctional alkoxylated polyamine, in particular an ethoxylated and/or propoxylated triamine, after the polymerization of P1 and P2.

    Procedimiento de preparación de un látex polimérico acuoso
    29.
    发明专利
    Procedimiento de preparación de un látex polimérico acuoso 未知

    公开(公告)号：ES2820861T3

    公开(公告)日：2021-04-22

    申请号：ES17721631

    申请日：2017-05-03

    Applicant: BASF SE

    Inventor： ROST TANJA ,  BALK ROELOF ,  WILLERICH IMMANUEL ,  ENCK SEBASTIAN ,  LESWIN JOOST ,  GASCHLER WOLFGANG ,  SCHEUBLE MARTIN ROBERT

    IPC: C08F220/14 ,  C08F212/08 ,  C08F220/18 ,  C08K3/22 ,  C09D133/02 ,  C09D133/08 ,  C09D133/12

    Abstract: Un procedimiento de preparación de un látex polimérico acuoso mediante la polimerización de una composición de monómeros M por una polimerización de emulsión radical, donde la composición de monómeros M consiste en a) Del 80 al 99,95% en peso, en base al peso total de la composición de monómeros M, de los monómeros M1 insaturados etilénicamente, que se seleccionan a partir de mezclas de - al menos un monómero M1a, seleccionado de ésteres de C1-C20-alquilo del ácido acrílico y de ésteres de alquilo-C5-C20 del ácido metacrílico; y - al menos un monómero M1b, seleccionado de monómeros vinilaromáticos, y ésteres de alquilo-C1-C4 del ácido metacrílico y sus mezclas; b) Del 0,05 al 5% en peso, en base al peso total de la composición de monómeros M, de uno o más monómeros M2 insaturados monoetilenicamente, que se seleccionan de ácidos monocarboxílicos insaturados monoetilenicamente que tienen de 3 a 6 átomos de carbono y de ácidos dicarboxílicos insaturados monoetilenicamente que tienen de 4 a 6 átomos de carbono; c) Del 0 al 20% en peso de monómeros M3 no iónicos, que son diferentes de los monómeros M1; en el que al menos el 95% de la composición de monómero M que va a ser polimerizado se dosifica durante un período P en la reacción de polimerización en condiciones de polimerización, en el que durante al menos un período P(n) dentro de dicho período P la cantidad relativa de monómeros M2, que se dosifica en la reacción de polimerización durante los períodos P(n), respecto a la cantidad total de la composición de monómero M, que se dosifica en la reacción de polimerización durante dicho período P(n), es al menos un 1% en peso mayor que la cantidad relativa de los monómeros M2, que se dosifican en la reacción de polimerización fuera de cada uno de dichos períodos P(n), respecto a la cantidad total de la composición del monómero M, que se dosifica en la reacción de polimerización fuera de cada uno de dichos períodos P(n), en el que el primer período P(n) comienza en un punto del tiempo t(s) y el último período P(n) termina en un punto del tiempo t(e), en el que t(s) está en un punto del tiempo, donde al menos el 10% de la cantidad total de la composición de monómeros M a polimerizar se ha dosificado en la reacción de polimerización y donde t(e) se encuentra en un punto de tiempo, donde como máximo el 90% de la cantidad total de la composición de monómeros M a polimerizar se ha dosificado en la reacción de polimerización.

    FINELY DIVIDED AQUEOUS EMULSION POLYMERS AND USE THEREOF FOR HYDROPHOBIC COATINGS
    30.
    发明专利
    FINELY DIVIDED AQUEOUS EMULSION POLYMERS AND USE THEREOF FOR HYDROPHOBIC COATINGS 未知

    公开(公告)号：ZA201702606B

    公开(公告)日：2018-08-29

    申请号：ZA201702606

    申请日：2017-04-12

    Applicant: BASF SE

    Inventor： BALK ROELOF ,  LOHMEIJER BASTIAAN

    Abstract: The present invention relates to a polymer dispersion obtainable by at least one two-stage emulsion polymerization, by 1) preparing a polymer A by a radical polymerization from a 1st composition comprising A) at least one monomer, B) at least one anionic copolymerizable emulsifier, 2) admixing the polymer A prepared at 1) with a base, 3) in the presence of the polymer A treated at 2), preparing a polymer B by radical polymerization from a 2nd composition comprising A) at least one monomer, B) at least one anionic copolymerizable emulsifier. The present invention also relates to a process for preparing the polymer dispersion of the invention, to coating materials in the form of an aqueous composition comprising the polymer dispersion of the invention, and to the use of the polymer dispersion of the invention for coating compositions or paints and varnishes.

Patent Agency Ranking