42.
    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.

    43.
    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.

    44.
    发明专利
    未知

    公开(公告)号:DE4036927A1

    公开(公告)日:1992-05-21

    申请号:DE4036927

    申请日:1990-11-20

    Applicant: BASF AG

    Abstract: A nonaqueous polyisocyanate preparation containing a) at least one aliphatic polyisocyanate having a mean NCO functionality of 2.5 to 3.5 and b) an amount which ensures the dispersibility of the polyisocyanates of a product of the reaction of a diisocyanate, selected from tetramethylene diisocyanate, hexamethylene diisocyanate, dodecamethylene diisocyanate, 1,4-diisocyanatocyclohexane, 4,4'-di(isocyanatocyclohexyl)methane, trimethylhexane diisocyanate, tetramethylhexane diisocyanate, 1-isocyanato-3,3,5-trimethyl- 5-(isocyanatomethyl)cyclohexane, 2,4- and 2,6-tolylene diisocyanate, tetramethylxylylene diisocyanate, p-xylylene diisocyanate, 2,4'- and 4,4'-diisocyanatodiphenylmethane and a mixture of at least two of these diisocyanates, with a monohydrate or polyhydrate polyalkylene ether alcohol having 2 to 4 carbon atoms in the alkylene groups and containing a polyether chain having at least 8 ethylene oxide units, the preparation thereof, and the use thereof in aqueous coating compositions and adhesive dispersions.

    Flexible plastic film with polyurethane foam backing prodn. - by pretreating film, before foam prodn., with an aq. dispersion of film-forming polyurethane to repair any damage due to processing

    公开(公告)号:DE4019951A1

    公开(公告)日:1992-01-02

    申请号:DE4019951

    申请日:1990-06-22

    Applicant: BASF AG

    Abstract: A process is claimed for the prodn. of moulded prods. (I) consisting of a preformed film made of flexible plastic (II), backed with a layer of polyurethane foam (III); the novelty is that any faults in the film produced during mfr. or further processing are repaired before the foaming process by treatment with an aq. dispersion of film-forming polyurethane (IV). Specifically (IV) is derived from (a) 1 mol. (NCO) di- or poly-isocyanate, (b) 0.1-0.8 mol. (OH) di- or poly-hydric alcohol with mol. wt. 400-6000, (c) 0.05-0.5 mol. (OH and/or NHR) of a cpd. contg. OH and/or NHR gps. together with ionic gp(s)., (d) 0-0.5 mol. (OH) di- or polyhydric alcohol with mol. wt. 62-400, (e) 0-0.4 mol. (NHR) di- or poly-amine with prim. or sec. amino gps. (with R = H, 2-4C alkyl or a moiety contg. the gp. NHR), (f) 0-0.4 mol. (OH + NHR) aminoalcohol with prim. and/or sec. amino gp(s). and (g) 0-0.2 mol. (OH) monohydric polyether-alcohol, such that total OH and/or NHR gps in components (b)-(g) = 0.9-1.2 mol.; (b) is a poly-THF, present as an alpha, omega-diol, and (c) is 2,2-bis-(hydroxymethyl)-propionic acid. USE/ADVANTAGE - The process is useful, e.g. in the prodn. of seats, arm rests, instruments panels, interior linings, etc. for motor vehicles and aircraft; the process makes it possible to use substrate film (II) which has been damaged (e.g. during deep-drawing, processing by the powder-slush method, etc.), by repairing the damage as above.

    Aq. polyurethane prepn(s)., esp. for low-gloss coatings - obtd. from di:isocyanate(s), long- and short-chain di:ol(s), cpds. with ionisable gps. and hydroxy or amino gps., and opt. other gps.

    公开(公告)号:DE4017525A1

    公开(公告)日:1991-12-05

    申请号:DE4017525

    申请日:1990-05-31

    Applicant: BASF AG

    Abstract: Aq. PU prepns. contg. 10-60 wt.% polyurethane(s) (PU) are new. (A) are obtd. from (a) organic di-isocyanate(s) with no lateral alkyl gps. or a mixt. of isocyanates with mean NCO functionality 1.5-2.5 (Monomer I), (b) isocyanate (mixt.) with functionality 1.5-2.5 and contg. lateral alkyl gp(s). (Monomer II), (c) dihydric alcohol(s) with Mn 400-6000 or a mixt. of alcohols with similar Mn and mean OH functionality 1.5-2.5 (Monomer III), (d) dihydric alcohol(s) with Mn 62-399 or a mixt. of alcohols with similar Mn and mean OH functionality 1.5-2.5 (Monomer IV), (e) cpd(s). with ionisable gp(s). and at least one alcoholic OH or -NH- gp. (Monomer V), (f) 0, 1 or more polyamines with at least 2 -NH- gps. (Monomer VI), (g) 0, 1 or more cpd(s). with alcoholic OH gp(s). and -NH- gp(s). (Monomer VII) and (h) 0, 1 or more monohydric polyether-alcohols (Monomer VIII); the amts. of monomers are such that the equiv. ratio (OH + -NH-)/NCO is 0.1-0.4 for (III)/(I + II), 0.5-0.8 for (IV)/(I + II), 0.05-0.5 for (V)/(I + II), 0-0.4 for (VI)/(I + II), 0-0.4 for (VII)/(I + II), 0-0.2 for (VIII)/(I + II) and 0.80-1.25 for (total III-VIII)/(I + II); (I + II) contains 50-90 mol.% (I), and 0.05-2 mmols. of the ionisable gps. in monomer (V) are ionised per g PU in the prepn. Also claimed is a process for the prodn. of the above PU prepns. USE/ADVANTAGE - Prepns. are useful as binders for coating materials for various substrates, esp. leather (claimed). The prepns. give a final coating with a reduced level of gloss, combined with high abrasion resistance, high water resistance and elasticity. (7pp Dwg.No.0/0)

    FLOWABLE POLYESTERS WITH CARBODIIMIDE STABILIZERS

    公开(公告)号:MY138325A

    公开(公告)日:2009-05-29

    申请号:MYPI20060342

    申请日:2006-01-25

    Applicant: BASF AG

    Abstract: 43 FLOWABLE POLYESTERS WITH C@RBODIIMIDE STABILIZERS ABSTRACT 5 THERMOPLASTIC MOLDING COMPOSITIONS COMPRISING A) FROM 1 0 LO 98.9BY WEIGHT OF AT LEAST ONE THERMOPLASTIC POLYESTER, B) FROM 0.01 TO 50BY WEIGHT OF 131) AT LEAST ONE HIGHLY BRANCHED OR HYPERBRANCHED POLYC2RBONATE HAVING AN OH 1 0 NUMBER OF FROM 1 TO 600 MG KOH/G OF POLYCARBONATE (TO DIN 53240, PART 2). OR 132) AT LEAST ONE HIGHLY BRANCHED OR HYPERBRANCHED POLYESTER OF THE A,BY TYPE WHERE X IS AT LEAST 1.1 AND Y IS AT LEAST 2.1 OR MIXTURES THEREOF C) FROM 0.1 TO 1 0BY WEIGHT OF AT LEAST ONE CARBODIIMIDE. 1 5 D) FROM 0 TO 60BY WEIGHT OF FURTHER ADDITIVES, THE SUM OF THE PERCENTAGES BY WEIGHT OF COMPONENTS A) TO D) ADDING UP TO 100 0E+002,

    48.
    发明专利
    未知

    公开(公告)号:DE59905693D1

    公开(公告)日:2003-07-03

    申请号:DE59905693

    申请日:1999-03-02

    Applicant: BASF AG

    Abstract: Carbodiimides which are solid at 25 degrees C, containing carbodiimide structures which are attached to non-aromatic carbon atoms, together with urethane and/or urea structures. Independent claims are also included for: (a) a process for the production of these solid carbodiimides from di-isocyanates in which the isocyanate (NCO) groups are not attached to aromatic carbon, by reaction in presence of catalysts to form the carbodiimide with cleavage of carbon dioxide, followed by reaction with compounds containing at least two NCO-reactive groups; (b) another process in which the above stages are reversed and the ratio of NCO groups to NCO-reactive groups used in the first stage is at least 2:1; (c) solid carbodiimides obtained by these processes; (d) mixtures containing compounds with ester units together with these carbodiimides; and (e) mixtures containing these carbodiimides and at least one of the following: polyurethanes with ester units and/or polycondensation products such as polyesters, e.g. polyethylene- or polybutylene- terephthalate, polyether-esters, polyester-esters, polyester-amides, polycaprolactones, unsaturated polyester resins and polyamides.

Patent Agency Ranking