POLYUREA ELASTOMER HAVING INCREASED CHEMICAL RESISTANCE

    公开(公告)号:CA2879661C

    公开(公告)日:2020-07-21

    申请号:CA2879661

    申请日:2013-07-25

    Applicant: BASF SE

    Abstract: Coating surfaces with a polyurea elastomers, wherein (a) polyisocyanates are mixed with (b) polyamines, (c) optionally amine chain extenders comprising primary or secondary amine groups, (d) optionally polyols, and (e) optionally auxiliaries and additives to form a reaction mixture and cured, where at least one of the components (a) to (d) comprises dispersed filler particles obtained by polymerization of monomers selected from the group consisting of styrene, acrylonitrile, butadiene, isoprene, 1,4-pentadiene, 1,6-hexadiene, 1,7-octadiene, alpha-methylstyrene, 2-methylstyrene, 3-methylstyrene, 4-methylstyrene, 2,4-dimethylstyrene, ethylstyrene, isopropylstyrene, butylstyrene, phenylstyrene, cyclohexylstyrene, benzylstyrene, cyanostyrene, nitrostyrene, N,N-dimethylaminostyrene, acetoxystyrene, methyl-4-vinyl benzoate, phenoxystyrene, p-vinylphenyl oxide, acrylonitrile, acrylic acid, methacrylic acid, methacrylonitrile, vinyl methyl ketone, vinyl ethyl ketone, vinyl phenyl ketone, vinyl ethyl sulfone, N-methyl-N-vinylacetamide, N-vinylpyrrolidone, vinylimidazole, divinyl sulfoxide, divinyl sulfone, sodium vinylsulfonate, methyl vinylsulfonate, N-vinylpyrrole, vinyl phosphonate, dimethyl fumarate, dimethyl maleate, maleic acid, crotonic acid, fumaric acid, itaconic acid, monomethyl itaconate, allyl alcohol, vinylpyridine, and mixtures of these monomers.

    Procedimiento para la preparación de dispersiones que contienen sílice, de polieteroles o polieteraminas

    公开(公告)号:ES2637037T3

    公开(公告)日:2017-10-10

    申请号:ES10709819

    申请日:2010-03-11

    Applicant: BASF SE

    Abstract: Procedimiento para la fabricación de dispersiones que tienen sílice, que contienen un polieterol o una polieteramina, que comprende las etapas, en la sucesión (i) a (iii), (i) entrecruzamiento de un sol (K) acuoso de sílice con un promedio de tamaño de partícula de 1 a 150 nm con un contenido de sílice, calculado como SiO2, de 1 a 60 % en peso con un valor de pH de 1 a 6 con por lo menos un polieterol (b1) y / o polieteramina (b2) a base de óxido de etileno y/u óxido de propileno con un promedio de funcionalidad OH o amina de 2 a 6 y un promedio aritmético de peso molecular de 62 a 6000 g/mol, (ii) separación por lo menos parcial por destilación del agua, (iii) entrecruzamiento de la dispersión con por lo menos un compuesto (S), que exhibe por lo menos un grupo sililo con por lo menos un grupo alcoxilo y por lo menos un sustituyente alquilo, cicloalquilo o arilo, en el que este sustituyente dado el caso puede exhibir grupos que son reactivos frente a un alcohol, una amina o un isocianato, en una cantidad de 0,1 a 20 mmol (S) por m2 de superficie de (K), (iv) opcional ajuste del valor de pH de las dispersiones obtenidas que tienen sílice, a un valor de 7 a 12, mediante adición de un compuesto básico, en la que la etapa (iv) puede ser ejecutada también entre las etapas (ii) y (iii).

    Method for producing rigid polyurethane foams

    公开(公告)号:AU2010224939C1

    公开(公告)日:2015-08-27

    申请号:AU2010224939

    申请日:2010-03-16

    Applicant: BASF SE

    Abstract: The invention relates to a method for producing rigid polyurethane foams, wherein a mixture of one or more highly functional polyether alcohols having functionalities of (3.5) to (5.5) and a hydroxyl value of (350) to (550) mg KOH/g, one or more polyether alcohols based on aliphatic and/or aromatic amines having functionalities of (3) to (4) and a hydroxyl value of (150) to (800) mg KOH/g, a fatty acid ester containing OH groups, and optionally one or more low-molecular-weight chain extenders and/or cross-linking agents having functionalities of (2) to (3) and a molecular weight M

    Process for producing rigid polyurethane foams

    公开(公告)号:AU2012241832A1

    公开(公告)日:2013-10-31

    申请号:AU2012241832

    申请日:2012-04-12

    Applicant: BASF SE

    Abstract: A process for producing rigid polyurethane foams by reacting a) organic polyisocyanates with b) compounds having at least two hydrogen atoms which are reactive toward isocyanate groups in the presence of c) blowing agents, d) catalysts and optionally, e) auxiliaries and additives, wherein a mixture of b1) from 20 to 60 parts by weight of one or more high-functionality polyether alcohols having functionalities of from 3.5 to 5.5 and a hydroxyl number of from 400 to 550 mg KOH/g, b2) from 5 to 25 parts by weight of one or more polyether alcohols based on aromatic and/or aliphatic amines and having functionalities of from 3.5 to 4.5 and a hydroxyl number of from 350 to 500 mg KOH/g, b3) from 5 to 25 parts by weight of one or more polyether alcohols having functionalities of from 2 to 4 and a hydroxyl number of from 150 to 450 mg KOH/g b4) from 1 to 15 parts by weight of one or more low molecular weight chain extenders and/or crosslinkers having functionalities of from 2 to 3 and a molecular weight Mw of

    PROCESS FOR PRODUCING RIGID POLYURETHANE FOAMS

    公开(公告)号:CA2833077A1

    公开(公告)日:2012-10-18

    申请号:CA2833077

    申请日:2012-04-12

    Applicant: BASF SE

    Abstract: A process for producing rigid polyurethane foams by reacting a) organic polyisocyanates with b) compounds having at least two hydrogen atoms which are reactive toward isocyanate groups in the presence of c) blowing agents, d) catalysts and optionally, e) auxiliaries and additives, wherein a mixture of b1) from 20 to 60 parts by weight of one or more high-functionality polyether alcohols having functionalities of from 3.5 to 5.5 and a hydroxyl number of from 400 to 550 mg KOH/g, b2) from 5 to 25 parts by weight of one or more polyether alcohols based on aromatic and/or aliphatic amines and having functionalities of from 3.5 to 4.5 and a hydroxyl number of from 350 to 500 mg KOH/g, b3) from 5 to 25 parts by weight of one or more polyether alcohols having functionalities of from 2 to 4 and a hydroxyl number of from 150 to 450 mg KOH/g b4) from 1 to 15 parts by weight of one or more low molecular weight chain extenders and/or crosslinkers having functionalities of from 2 to 3 and a molecular weight Mw of

    PROCESS FOR PRODUCING RIGID POLYURETHANE FOAMS

    公开(公告)号:CA2833066A1

    公开(公告)日:2012-10-18

    申请号:CA2833066

    申请日:2012-04-11

    Applicant: BASF SE

    Abstract: A process for producing rigid polyurethane foams by reacting a) organic polyisocyanates with b) compounds having at least two hydrogen atoms which are reactive toward isocyanate groups in the presence of c) blowing agents, d) catalysts and, if appropriate, e) auxiliaries and additives, wherein a mixture of b1) from 20 to 60 parts by weight of one or more high-functionality polyether alcohols having functionalities of from 3.5 to 5.5 and a hydroxyl number of from 400 to 550 mg KOH/g, b2) from 1 to 20 parts by weight of one or more polyether alcohols based on aliphatic amines and having functionalities of from 3.5 to 4.5 and a hydroxyl number of from 450 to 900 mg KOH/g, b3) from 10 to 30 parts by weight of one or more polyether alcohols and/or aromatic polyester alcohols having functionalities of from 1.5 to 3 and a hydroxyl number of from 150 to 450 mg KOH/g, and b4) optionally from 1 to 5 parts by weight of water is used as polyol component b). The polyol component b) of the invention has good storage stability and the rigid polyurethane foams obtained have a good surface quality, curing and adhesion.

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