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    Aq. polymer dispersions, useful as binders for coating materials - are prepd. by two=stage emulsion copolymerisation of N-butyl acrylate] with other monomers, esp. N-methylol-(meth)acrylamide] and (meth)acrylamide]
    1.
    发明专利
    Aq. polymer dispersions, useful as binders for coating materials - are prepd. by two=stage emulsion copolymerisation of N-butyl acrylate] with other monomers, esp. N-methylol-(meth)acrylamide] and (meth)acrylamide] 未知

    公开(公告)号：DE4123853A1

    公开(公告)日：1993-01-21

    申请号：DE4123853

    申请日：1991-07-18

    Applicant: BASF AG

    Inventor： EINWILLER ANDREAS DR ,  ANGEL MAXIMILIAN DR ,  ZOSEL ALBRECHT DR

    IPC: C08F2/24 ,  C08F265/04

    Abstract: Aq. polymer dispersions (I) are claimed; (I) are obtd. by emulsion polymerisation of a mixt. of (A) 50-99.5wt.% n-butyl acrylate; (B) 0.5-10wt.% N-alkylolamide(s) of 3-10C alpha,beta- mono-unsatd. acids or corresp. 1-4C alkyl ethers or monomer(s) with 2 double bonds, and (C) 0-49.5wt.% other mono-unsatd. monomers, in the presence of surfactants and radical initiators; the process is carried out at 0-60 deg.C, the polymer obtd. (II) has Tg (-10) to (-5) deg.C, and the polymerisation is carried out in 2 consecutive stages, involving polymerisation of 40-99.5wt.% of the total amt. of monomers in stage 1 and 0.5-60wt.% in stage 2, with addn. of the whole of monomer (B) in stage 2 and with n-butyl acrylate making up at least half of the monomers used in stage 1. Also claimed is the above process as such. More specifically, the monomer mixt. contains at least 75 (pref. 90-97.5) wt.% N-methylol- (meth)acrylamide and 1-5wt.% (meth)acrylamide; stage 2 is carried out with monomer (B) only, or with (B) and above 10wt.% (A) and/or (C) (at 0-30 deg.C), or with (B) and below 10wt.% (A) and/or (C) (at 40-60 deg.C). USE/ADVANTAGE - (I) are useful as binders for coating materials (claimed). W.r.t. prior-art materials, (I) enable the prodn. of coating materials with increased elongation at tear and low surface tackiness, and are therefore esp. useful in paint and plaster for use on cracked exterior surfaces

    4.
    发明专利
    未知

    公开(公告)号：DE3734752A1

    公开(公告)日：1989-05-03

    申请号：DE3734752

    申请日：1987-10-14

    Applicant: BASF AG

    Inventor： PFOEHLER PETER DR ,  ANGEL MAXIMILIAN DR ,  EINWILLER ANDREAS DR ,  SCHAGERER KLAUS DR

    IPC: C08F2/22 ,  C08F2/24 ,  C08F20/52 ,  C08F220/12 ,  C08F220/58 ,  C08F265/04 ,  C08F265/06 ,  C09J133/04 ,  D04H1/435 ,  D04H1/58 ,  D04H1/587 ,  D04H1/645 ,  D06M15/263

    Abstract: A process for the preparation of aqueous (meth)acrylate copolymer dispersions by polymerising the monomers in two steps of different monomer composition and additionally using crosslinking monomers in aqueous emulsion at a conventional temperature in the presence of conventional emulsifiers and polymerisation initiators, wherein from 40 to 99.5 % by weight of the entire amount of monomers are polymerised in the first step and from 60 to 0.5 % by weight are polymerised in the second step, from 0.5 to 10 % by weight, based on the total amount of monomers, of (meth)acrylamidoglycolic acid and/or the methyl ester and/or methyl ether thereof are polymerised in the second step and from 0 to 1.8 % by weight, based on the total amount of monomers, of the amidoglycolic acid compounds are polymerised in the first step. The copolymer dispersions obtained are used as binders for sheet-like textile structures made from fibres.

    6.
    发明专利
    未知

    公开(公告)号：DE59005048D1

    公开(公告)日：1994-04-28

    申请号：DE59005048

    申请日：1990-04-05

    Applicant: BASF AG

    Inventor： ANGEL MAXIMILIAN DR ,  EINWILLER ANDREAS DR

    IPC: C08J3/03 ,  C08F2/22 ,  C08J3/00 ,  D04H1/64 ,  D06M15/21 ,  D06M15/693

    Abstract: Aqueous dispersions of synthetic resins are obtainable by combining an aqueous starting dispersion of a polymer A which has a glass transition temperature of from -50 to +60 DEG C and is built up from monoethylenically unsaturated monomers which carry, apart from carboxyl groups and derivatives thereof, no further polymerisable or mutually condensable groups, and optionally butadiene, and an aqueous solution of a polymer B which is built up essentially from N-hydroxycarboxymethylamides of acrylic and/or methacrylic acid and/or from water-soluble salts of these N-hydroxycarboxymethylamides, at the beginning, during and/or after completion of the preparation of the aqueous starting dispersion, with the proviso that the solid content of the polymer B, based on the total amount of polymers A and B, is from 0.5 to 10% by weight.

    7.
    发明专利
    未知

    公开(公告)号：DE3911942A1

    公开(公告)日：1990-10-18

    申请号：DE3911942

    申请日：1989-04-12

    Applicant: BASF AG

    Inventor： ANGEL MAXIMILIAN DR ,  EINWILLER ANDREAS DR

    IPC: C08J3/03 ,  C08F2/22 ,  C08J3/00 ,  D04H1/64 ,  D06M15/21 ,  D06M15/693

    Abstract: Aqueous dispersions of synthetic resins are obtainable by combining an aqueous starting dispersion of a polymer A which has a glass transition temperature of from -50 to +60 DEG C and is built up from monoethylenically unsaturated monomers which carry, apart from carboxyl groups and derivatives thereof, no further polymerisable or mutually condensable groups, and optionally butadiene, and an aqueous solution of a polymer B which is built up essentially from N-hydroxycarboxymethylamides of acrylic and/or methacrylic acid and/or from water-soluble salts of these N-hydroxycarboxymethylamides, at the beginning, during and/or after completion of the preparation of the aqueous starting dispersion, with the proviso that the solid content of the polymer B, based on the total amount of polymers A and B, is from 0.5 to 10% by weight.

    9.
    发明专利
    未知

    公开(公告)号：ES2062150T3

    公开(公告)日：1994-12-16

    申请号：ES90106518

    申请日：1990-04-05

    Applicant: BASF AG

    Inventor： ANGEL MAXIMILIAN DR ,  EINWILLER ANDREAS DR

    IPC: C08J3/03 ,  C08F2/22 ,  C08J3/00 ,  D04H1/64 ,  D06M15/21 ,  D06M15/693

    Abstract: Aqueous dispersions of synthetic resins are obtainable by combining an aqueous starting dispersion of a polymer A which has a glass transition temperature of from -50 to +60 DEG C and is built up from monoethylenically unsaturated monomers which carry, apart from carboxyl groups and derivatives thereof, no further polymerisable or mutually condensable groups, and optionally butadiene, and an aqueous solution of a polymer B which is built up essentially from N-hydroxycarboxymethylamides of acrylic and/or methacrylic acid and/or from water-soluble salts of these N-hydroxycarboxymethylamides, at the beginning, during and/or after completion of the preparation of the aqueous starting dispersion, with the proviso that the solid content of the polymer B, based on the total amount of polymers A and B, is from 0.5 to 10% by weight.

    10.
    发明专利
    未知

    公开(公告)号：DK0392353T3

    公开(公告)日：1994-04-11

    申请号：DK90106518

    申请日：1990-04-05

    Applicant: BASF AG

    Inventor： ANGEL MAXIMILIAN DR ,  EINWILLER ANDREAS DR

    IPC: C08J3/03 ,  C08F2/22 ,  C08J3/00 ,  D04H1/64 ,  D06M15/21 ,  D06M15/693

    Abstract: Aqueous dispersions of synthetic resins are obtainable by combining an aqueous starting dispersion of a polymer A which has a glass transition temperature of from -50 to +60 DEG C and is built up from monoethylenically unsaturated monomers which carry, apart from carboxyl groups and derivatives thereof, no further polymerisable or mutually condensable groups, and optionally butadiene, and an aqueous solution of a polymer B which is built up essentially from N-hydroxycarboxymethylamides of acrylic and/or methacrylic acid and/or from water-soluble salts of these N-hydroxycarboxymethylamides, at the beginning, during and/or after completion of the preparation of the aqueous starting dispersion, with the proviso that the solid content of the polymer B, based on the total amount of polymers A and B, is from 0.5 to 10% by weight.

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