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    31.
    发明专利
    未知

    公开(公告)号：DE59208171D1

    公开(公告)日：1997-04-17

    申请号：DE59208171

    申请日：1992-10-31

    Applicant: BASF AG

    Inventor： WALLON ALEXANDER DR ,  MAEMPEL LOTHAR DR ,  AUCHTER GERHARD DR ,  SEIBERT HORST

    IPC: C08L75/04 ,  C08G18/08 ,  C08G18/65 ,  C08L75/00 ,  C09J175/00 ,  C09J175/04

    Abstract: Aqueous dispersions containing a polyurethane and from 5 to 60% by weight, based on the polyurethane, of an adhesion-improving polymer, the polyurethane consisting essentially of (a) organic diisocyanates, (b) dihydroxy compounds which have a molecular weight of from more than 500 to 5,000 g/mol and contain no ionic groups or groups convertible into ionic groups, (c) compounds having one or two functional groups reactive toward isocyanate and at least one ionic group or group convertible into an ionic group and (d) compounds having at last 3 isocyante groups or at least 3 functional groups reactive toward isocyanate, (e) optionally compounds which differ from (c) and have two functional groups reactive toward isocyanate and a molecular weight of from 60 to 500 g/mol, the compounds (d) being used in amounts such that the functionality F of all components is from 2.01 to 2.5, and the polyurethane or a prepolymer thereof is prepared in a water-miscible solvent boiling below 100 DEG C. and, after addition of the adhesion-improving polymer, is dispersed in water.

    32.
    发明专利
    未知

    公开(公告)号：DE59108388D1

    公开(公告)日：1997-01-16

    申请号：DE59108388

    申请日：1991-05-14

    Applicant: BASF AG

    Inventor： REHMER GERD DR ,  AUCHTER GERHARD DR ,  JAEGER HELMUT

    IPC: C08F20/12 ,  C08F2/50 ,  C08F8/00 ,  C08F8/14 ,  C08F8/30 ,  C08F8/32 ,  C08F20/34 ,  C08F20/36 ,  C08F20/52 ,  C08F20/58 ,  C08F220/10 ,  C08F220/12 ,  C09J4/00 ,  C09J4/02

    Abstract: Synthetic resins are obtainable by chemically bonding one or more compounds of the general formula I (* CHEMICAL STRUCTURE *) (I) where R1 is -OH, -NH2, (* CHEMICAL STRUCTURE *) -NHR3 or (* CHEMICAL STRUCTURE *) R2 is -H, -CH3 or -C2H5, R3 is -CmH2m+1, where m is from 1 to 6, R4 is -H or -CH3 and n is from 1 to 12, via the oxygen or nitrogen atom of R1 to one or more polymers A which consist of a) from 50 to 100% by weight of one or more esters of acrylic or methacrylic acid with monohydric alcohols of 1 to 18 carbon atoms or a mixture of these esters (monomers a) and b) from 0 to 50% by weight of other copolymerizable monomers (monomers b) in polymerized form, in amounts such that the synthetic resin contains from 0.01 to 1 mole of double bonds per kg of polymer A. After exposure to ultraviolet light or to electrons, these synthetic resins are suitable as contact adhesives.

    36.
    发明专利
    未知

    公开(公告)号：DE4137660A1

    公开(公告)日：1993-05-19

    申请号：DE4137660

    申请日：1991-11-15

    Applicant: BASF AG

    Inventor： WALLON ALEXANDER DR ,  MAEMPEL LOTHAR DR ,  AUCHTER GERHARD DR ,  SEIBERT HORST

    IPC: C08L75/04 ,  C08G18/08 ,  C08G18/65 ,  C08L75/00 ,  C09J175/00 ,  C09J175/04

    Abstract: Aqueous dispersions containing a polyurethane and from 5 to 60% by weight, based on the polyurethane, of an adhesion-improving polymer, the polyurethane consisting essentially of (a) organic diisocyanates, (b) dihydroxy compounds which have a molecular weight of from more than 500 to 5,000 g/mol and contain no ionic groups or groups convertible into ionic groups, (c) compounds having one or two functional groups reactive toward isocyanate and at least one ionic group or group convertible into an ionic group and (d) compounds having at last 3 isocyante groups or at least 3 functional groups reactive toward isocyanate, (e) optionally compounds which differ from (c) and have two functional groups reactive toward isocyanate and a molecular weight of from 60 to 500 g/mol, the compounds (d) being used in amounts such that the functionality F of all components is from 2.01 to 2.5, and the polyurethane or a prepolymer thereof is prepared in a water-miscible solvent boiling below 100 DEG C. and, after addition of the adhesion-improving polymer, is dispersed in water.

    Radiation-cured polyurethane-acrylate]-based contact adhesive - contg. vinyl monomer and reaction prod. of di:isocyanate, poly:ol, diol. unsatd. hydroxy cpd. and cyclic ether with hydroxy or amino gp.
    38.
    发明专利
    Radiation-cured polyurethane-acrylate]-based contact adhesive - contg. vinyl monomer and reaction prod. of di:isocyanate, poly:ol, diol. unsatd. hydroxy cpd. and cyclic ether with hydroxy or amino gp. 未知

    公开(公告)号：DE3915981A1

    公开(公告)日：1990-11-29

    申请号：DE3915981

    申请日：1989-05-17

    Applicant: BASF AG

    Inventor： JAEGER ULRICH DR ,  REHMER GERD DR ,  AUCHTER GERHARD DR

    IPC: C08G18/28 ,  C08G18/67 ,  C09J175/16

    Abstract: Radiation-curable contact adhesives (I) contain (A) 10-98 wt. % oligomeric or polymeric reaction prod. with mol. wt. 500-100,000 and (B) 2-99 wt. % mono-vinyl cpd. (A) is the reaction prod. of (a) di-isocyanate, (b) 20-99 equiv. % polyester-polyol and/or polyether-polyol (c) 0-79 equiv. % 2-50C diol, (d) an OH gp. which is not directly linked with (II) and (e) a cpd. with an OH or amino gp. namely up to 20C acetal or ketal and/or a cycloaliphatic ether with a 3- or 10-membered ring, amt. of (d+e) is 1-50 equiv. % w.r.t. NCO gps. in (a), equiv. ratio (d):(e) = (10:90)-(90:10), and NCO gps. in (a) are equiv. to the sum of the OH and amino gps. in (b), (c), (d) and (e). Amts. are 40-70 wt. % (A) and 30-60 wt. % (B) and (A) has mol. wt. 1000-40,000 and is derived from (a) 50-98 equiv. % (b) 0-40 equiv. % (c) and 2-40 equiv. % (d+e) (wtih equiv. ratio (d):(e) = (15:85)-(30:70)), (d) is hydroxy(1-20C alkyl)-(meth)acryalte or -(meth)acrylamide, pref. a versatic acid mono-ester (III) of 2,3-dihydroxypropyl 1-(meth)acrylate and/or 1,3-dihydroxypropyl 2-(meth)acrylate, (e) is an up to 20C acetal or ketal with an OH amino gp. or a 3-10membered cycloaliphatic ether with an OH or amino gp. (B) is a vinyl monomer which gives a homopolymer with Tg below 20 deg.C pref. a reaction prod. of the above versatic acid mono-esters with an equimol. amt. of a satd. or mono-unsatd. 4-5C cyclic dicarboxylic anhydride. USE/ADVANTAGE - (I) are useful for the prodn. of labels, adhesives strips, decorative film, etc. These adhesives have a balanced combination of surface tackiness, peel strength and cohesion.

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