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    5.
    发明专利
    未知

    公开(公告)号：ES2058388T3

    公开(公告)日：1994-11-01

    申请号：ES89109591

    申请日：1989-05-27

    Applicant: BASF AG

    Inventor： PFOEHLER PETER DR ,  SEYFFER HERMANN DR ,  VIETMEIER JURGEN DR ,  TUERK JOHANNES ,  DRUSCHKE WOLFGANG DR ,  SCHAGERER KLAUS DR

    IPC: C08L33/06 ,  C08F220/00 ,  C08F220/10 ,  C08F220/12 ,  C08F220/18 ,  C08F220/26 ,  C08F220/28 ,  C08F220/44 ,  C08L33/04 ,  C09D133/06 ,  C09J7/02 ,  C09J133/00 ,  C09J133/04

    Abstract: Aqueous dispersions of copolymers of (a) from 70 to 85% by weight of nontertiary butyl (meth)acrylates, (b) from 8 to 27.2% by weight of (meth)acrylates (A) whose homopolymers have a glass transition temperature greater than that of the polybutyl (meth)acrylate up to 0 DEG C. and (meth)acrylates (B) whose homopolymers have a glass transition temperature below that of the polybutyl (meth)acrylate, the weight ratio of the (meth)acrylates (A) to the (meth)acrylates (B) being from 3:1 to 1:3, (c) from 2 to 15% by weight of methyl methacrylate, styrene and/or acrylonitrile and (d) 0.8 to 5% by weight of monoolefinically unsaturated mono- and/or dicarboxylic acids of 3 to 5 carbon atoms and/or their amides which are unsubstituted or substituted at the nitrogen atoms by alkyl and/or alkylol radicals of 1 to 4 carbon atoms and/or hydroxyalkyl (meth)acrylates where the alkyl groups are of 2 to 5 carbon atoms, are used for coating sheet-like substrates.

    Aq. polymer dispersions, useful for prodn. of self-adhesive tape, etc. - contain acrylic] ester] copolymer, rosin, poly:isocyanate, emulsifiers and water
    6.
    发明专利
    Aq. polymer dispersions, useful for prodn. of self-adhesive tape, etc. - contain acrylic] ester] copolymer, rosin, poly:isocyanate, emulsifiers and water 未知

    公开(公告)号：DE4007637A1

    公开(公告)日：1991-09-12

    申请号：DE4007637

    申请日：1990-03-10

    Applicant: BASF AG

    Inventor： PFOEHLER PETER DR ,  FIETZEK HERBERT ,  ZETTL ALEXANDER

    IPC: C08G18/40 ,  C08G18/62 ,  C08G18/70 ,  C08L93/04 ,  C09J7/02 ,  C09J133/08 ,  C09J175/00

    Abstract: Aq. polymer dispersions (I) are claimed, contg. (A) 20-60 wt.% polymer(s) (A) with Tg (-)60 - (-)10 deg.C, (B) 5-20 wt.% rosin, rosin derivs. or mixts., (C) 0.1-6 wt.% isocyanate(s) with 2-3 NCO gps., (D) emulsifiers and (E) at least 25 wt.% water; (A) are polymers of (a) 70-100 pts.wt. non-tert. 4-12C alkyl acrylate(s), (b) 0.1-5 pts.wt. 3-5C mono-unsatd. mono- or di-carboxylic acid(s), amides (opt. partly or completely N-substd. with 1-4C alkyl and/or alkylol gps.) or esters of (meth)acrylic acid with 2-5C polyhydric alcohols, and (c) 1-30 pts.wt. 1-3C alkyl acrylates, 1-8C alkyl methacrylates, vinyl 2-4C carboxylates, (meth)acrylonitrile and/or styrene. (I) are produced by mixing components (B) and (C) with an aq. dispersion of (A). Specifically (a) is n-butyl, iso-butyl and/or 2-ethylhexyl acrylate, and (b) is acrylic and/or methacrylic acid; (A) has K value 70-110 in THF at 25 deg.C; (I) contains 0.2-0.7 wt.% isocyanate and has wt. ratio (A):(B) = (8:2)-(6:4); the aq. dispersion of (A) is mixed with an aq. dispersion of (B) and, as component (C), an aliphatic polyisocyanate (II) in the form of a polyisocyanate prepn. which contains (II) with NCO functionality 2-3 and, as emulsifier, a reaction prod. of (II) with a mono- or poly-hydric non-ionic polyalkylene-ether-alcohol contg. at least one polyether chain with at least 10 ethylene oxide units (III). USE/ADVANTAGE - (I) are useful for the prodn. of self-adhesive articles (claimed); also claimed is adhesive tape consisting of a PP substrate coated with a film of (I). The invention provides self-adhesive tape, etc. with a combination of high tackiness, high adhesive strength and high cohesion, as required, esp. for packaging tape, etc..

    8.
    发明专利
    未知

    公开(公告)号：DE3720860A1

    公开(公告)日：1989-01-05

    申请号：DE3720860

    申请日：1987-06-24

    Applicant: BASF AG

    Inventor： AUCHTER GERHARD DR ,  SCHWERZEL THOMAS DR ,  OSTERLOH ROLF DR ,  NEUBERT GERHARD DR ,  PFOEHLER PETER DR ,  DRUSCHKE WOLFGANG DR ,  JAEGER HELMUT

    IPC: C08F2/16 ,  C08J3/07 ,  C08K5/25 ,  C08L33/04 ,  C08L33/06 ,  C09J133/04 ,  C09J133/06 ,  C08J3/10 ,  C08F20/12 ,  C09J3/14 ,  C08J5/12 ,  B32B7/12

    Abstract: The polymer dispersions are obtainable by dispersing a mixture of… 15 - 70% by weight of a copolymer (A) comprising… (I) 1.5 - 15% by weight of copolymerisable compounds containing 3 to 10 carbon atoms and one carboxyl or carboxylic anhydride group,… (II) 65 - 98.5% by weight of C1- to C20-alkyl acrylates or methacrylates,… (III) 0 - 20% by weight of vinylaromatic compounds,… (IV) 0 - 20% by weight of copolymerisable carbonyl compounds,… (V) 0 - 10% by weight of further copolymerisable organic compounds not mentioned under (I) to (IV),… and 30 - 85% by weight of a copolymer (B) comprising… 60 - 100% by weight of monomers (II) and… 0 - 40% by weight of monomers (III) to (V),… with the proviso that the copolymers (A) and (B) together contain more than 65% by weight of alkyl (meth)acrylates (II) as synthesis component whose homopolymers have glass transition temperatures of below 0 DEG C, and that at least one of the copolymers (A) and (B) contains the monomers (IV) as synthesis component,… in water with addition of ammonia and a polyhydrazide (C). … The dispersions are used as contact adhesives and as adhesives for multilayer films.

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