CARBODIIMIDE, PRODUCTION AND USE THEREOF, AND MIXTURE CONTAINING CARBODIIMIDE

    公开(公告)号:JP2000256436A

    公开(公告)日:2000-09-19

    申请号:JP6034999

    申请日:1999-03-08

    Applicant: BASF AG

    Abstract: PROBLEM TO BE SOLVED: To provide a solid carbodiimide which has an urethane structures and/or an urea sructures, has a carbodiimide structures bonded to nonaromatic carbon atoms, and is useful as a stabilizer for polyester plastics. SOLUTION: This carbodiimide is solid at 25 deg.C and is produced by separating carbon dioxide in the presence of a catalyst from a diisocyanate having no isocyanate group bonded to an aromatic carbon atom, thus converting the diisocyanate into a carbodiimide, and reacting this isocyanate-group-containing carbodiimide with a compound having at least two isocyanate-reactive groups to form urethane structures and/or urea structures. Preferably, the diisocyanate is 1,3-bis(1-methyl-1-isocyanatoethyl)benzene. Preferable examples of the compound having at least two isocyanate-reactive groups are an organic compound having at least two hydroxyl groups, an organic compound having at least two amino groups, and an organic compound having at least one hydroxyl group and at least one amino group.

    AQUEOUS COATING MATERIAL, PRODUCTION THEREOF, METHOD FOR COATING SUBSTRATUM AND COATED ARTICLE

    公开(公告)号:JPH1088041A

    公开(公告)日:1998-04-07

    申请号:JP23077397

    申请日:1997-08-27

    Applicant: BASF AG

    Abstract: PROBLEM TO BE SOLVED: To provide an aqueous coating material which not only has excellent storage stability, but also is little poisonous, and further has high flexibility in making its formulation, by using an organic polymer having free and/or neutralized acid groups present in an aqueous solution or an aqueous dispersion together with a specific crosslinking agent. SOLUTION: This aqueous coating material comprises (a) an organic polymer having free and/or neutralized acid groups being present in an aqueous solution or an aqueous dispersion, and (b) a crosslinking agent which has a structure represented by the formula (wherein each of R1 to R4 is H, or an alkyl, an aryl or an aralkyl each having 1 to 24 carbon atoms; X is oxygen, sulfur or-N(R5 )-; R5 is an alkyl, an aryl or an aralkyl each having 1 to 24 carbon atoms; Z is an n-functional arkyl, aryl, or aralkyl; n is a number of at least 2, and which has a molar mass of 10,000 or less).

    7.
    发明专利
    未知

    公开(公告)号:DE19618675A1

    公开(公告)日:1997-03-27

    申请号:DE19618675

    申请日:1996-05-09

    Applicant: BASF AG

    Abstract: The invention concerns aqueous dispersions containing a polyurethane (A), containing structural units derived from compounds of formula (I), in which the substituents have the following meanings: R , R , R each designate hydrogen, C1-C24 alkyl or C6 - C24 alkenyl; R designates hydrogen; R , R a) together designate C4-C10 alkane-diyl, b) each designate C2-C10 alkyl, C5-C8 cycloalkyl or C7-C20 aralkyl, c) each designate a hydroxyl-terminated poly(C2-C4 alkylene oxide), or d) designate an R or R group with the meaning given in (a) to (c) and the other group designating hydrogen or a group of formula (II), in which X designates C2-C6 alkane-diyl; and R has the same meaning as R or R with the exception that R is not a group of formula II, R and R carrying a total of between 2 and 5 hydroxyl groups bonded to aliphatic carbon atoms; and R and/or R optionally carrying 1 or 2 aromatically bonded hydroxyl groups or 1 nitrile, tertiary amino, carboxylic acid or sulphonic acid group which are optionally present in the form of their salts.

    8.
    发明专利
    未知

    公开(公告)号:ES2142642T3

    公开(公告)日:2000-04-16

    申请号:ES97107492

    申请日:1997-05-07

    Applicant: BASF AG

    Abstract: Latent hardening aqueous polyurethane dispersions contain (1) a disperse phase (P.1) containing (1a) a polyurethane (PUR.1a) containing groups (G-1) imparting dispersibility in water and groups (G-2) with a carbon-carbon (C-C) double bond activated by a carbonyl group bound directly to this or (1b) a mixture of a polyurethane (PUR.1b) containing G-1 groups but not G-2 groups and a compound (I) containing G-2 groups, other than PUR.1a and PUR.1b; and (2) a compound (II) which contains an average of NOTLESS 2 hydrogen (H) atoms as amino function, has a water solubility > 1 g/l (25 degrees C) and has a number average molecular weight (Mn) of 200-1000000. Also claimed are wood, metal, textile, leather or plastics articles bonded, impregnated or coated with the dispersions.

    9.
    发明专利
    未知

    公开(公告)号:DE19634598A1

    公开(公告)日:1998-03-05

    申请号:DE19634598

    申请日:1996-08-27

    Applicant: BASF AG

    Abstract: An aqueous coating composition (CC), contains (a) an organic polymer with free and/or neutralised acid groups, in aqueous solution or dispersion, and (b) a crosslinker of formula (R1-CH(R2)-C(O)-C(R3)(R4)-C(O)-X)n-Z (I) with a molecular weight of less than 10000. In (I), R1-R4 = H and/or 1-24C alkyl, aryl and/or aralkyl; X = -O-, -S- or -NR5-; R5 = H or 1-24C alkyl, aryl or aralkyl; and Z = optionally substituted, n-functional alkyl, aryl or aralkyl group. Also claimed are (i) the production of CC by mixing (a) and (b); (ii) a process for coating substrates by applying composition CC; and (iii) coated objects obtained by process (ii).

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