21.
    发明专利
    未知

    公开(公告)号:DE59007186D1

    公开(公告)日:1994-10-27

    申请号:DE59007186

    申请日:1990-04-05

    Applicant: BASF AG

    Abstract: Aqueous dispersions of polyurethanes which are crosslinkable by the action of high energy radiation contain (a) a polyisocyanate, (b) a polyol having a molecular weight of from 400 to 6,000 g/mol, (c) if required, a polyol having a molecular weight of from 62 to 399 g/mol, (d) if required, a polyamine having two or more amino groups which are reactive to isocyanate, (e) if required, an aminoalcohol having one or more amino groups which are reactive to isocyanate, (f) a compound containing ionic groups or groups which can be converted into ionic groups and one or more hydroxyl or amino groups which are reactive to isocyanate (g) if required, a monofunctional polyetheral and (h) a compound having one or more ethylenically unsaturated groups and one or more hydroxyl groups. The compound having an ethylenically unsaturated group (h) is used in amounts corresponding to 0.02-0.08 gram equivalent, based on the polyisocyanate (a), of OH, and the polyurethane, dissolved in dimethylformamide, has a Fikentscher K value greater than 40 or is insoluble in dimethylformamide.

    22.
    发明专利
    未知

    公开(公告)号:AT111927T

    公开(公告)日:1994-10-15

    申请号:AT90106517

    申请日:1990-04-05

    Applicant: BASF AG

    Abstract: Aqueous dispersions of polyurethanes which are crosslinkable by the action of high energy radiation contain (a) a polyisocyanate, (b) a polyol having a molecular weight of from 400 to 6,000 g/mol, (c) if required, a polyol having a molecular weight of from 62 to 399 g/mol, (d) if required, a polyamine having two or more amino groups which are reactive to isocyanate, (e) if required, an aminoalcohol having one or more amino groups which are reactive to isocyanate, (f) a compound containing ionic groups or groups which can be converted into ionic groups and one or more hydroxyl or amino groups which are reactive to isocyanate (g) if required, a monofunctional polyetheral and (h) a compound having one or more ethylenically unsaturated groups and one or more hydroxyl groups. The compound having an ethylenically unsaturated group (h) is used in amounts corresponding to 0.02-0.08 gram equivalent, based on the polyisocyanate (a), of OH, and the polyurethane, dissolved in dimethylformamide, has a Fikentscher K value greater than 40 or is insoluble in dimethylformamide.

    23.
    发明专利
    未知

    公开(公告)号:DE58901120D1

    公开(公告)日:1992-05-21

    申请号:DE58901120

    申请日:1989-01-03

    Applicant: BASF AG

    Abstract: The invention relates to a method for waterproofing leather, furs and synthetic leathers with a carboxyl-containing polysiloxane whose carboxyl groups are present in neutralised form in aqueous phase in the absence of emulsifiers and without aftertreatment with mineral tannins.

    29.
    发明专利
    未知

    公开(公告)号:ES2058652T3

    公开(公告)日:1994-11-01

    申请号:ES90106517

    申请日:1990-04-05

    Applicant: BASF AG

    Abstract: Aqueous dispersions of polyurethanes which are crosslinkable by the action of high energy radiation contain (a) a polyisocyanate, (b) a polyol having a molecular weight of from 400 to 6,000 g/mol, (c) if required, a polyol having a molecular weight of from 62 to 399 g/mol, (d) if required, a polyamine having two or more amino groups which are reactive to isocyanate, (e) if required, an aminoalcohol having one or more amino groups which are reactive to isocyanate, (f) a compound containing ionic groups or groups which can be converted into ionic groups and one or more hydroxyl or amino groups which are reactive to isocyanate (g) if required, a monofunctional polyetheral and (h) a compound having one or more ethylenically unsaturated groups and one or more hydroxyl groups. The compound having an ethylenically unsaturated group (h) is used in amounts corresponding to 0.02-0.08 gram equivalent, based on the polyisocyanate (a), of OH, and the polyurethane, dissolved in dimethylformamide, has a Fikentscher K value greater than 40 or is insoluble in dimethylformamide.

    30.
    发明专利
    未知

    公开(公告)号:DE4141760A1

    公开(公告)日:1993-06-24

    申请号:DE4141760

    申请日:1991-12-18

    Applicant: BASF AG

    Abstract: An aqueous polymer dispersion, films of which have increased elasticity at the same time as reduced surface tack and increased aging resistance on exposure to light, heat and oxygen, and the use thereof for coating leather.

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