ACID-MODIFIED POLYESTERS AND THEIR USE IN STOVING ENAMELS

    公开(公告)号:CA2115909A1

    公开(公告)日:1994-08-27

    申请号:CA2115909

    申请日:1994-02-17

    Applicant: HOECHST AG

    Abstract: Acid-modified polyesters and their use in stoving enamels Acid-modified polyesters obtained by reacting (a) from 20 to 60, preferably 30-50, mol% of at least one dicarboxylic acid, (b) from 3 to 30, preferably 5-20, mol% of a dihydroxy alkanecarboxylic acid, (c) from 10 to 60, preferably 20-50, mol% of a diol, (d) from 0 to 30 mol% of a polyalcohol having more than two OH groups or of a polycarboxylic acid, and (e) from 0 to 20, preferably up to 10, mol% of a mono carboxylic acid, the ratio of the sum of the hydroxyl equivalents to the sum of the carboxyl equivalents in the reactants being between 0.5 and 2.0, the quantities of free hydroxyl groups in the end product being between 30 and 350 mmol of hydroxyl groups per 100 g of solid resin, preferably between 100 and 250 mmol of hydroxyl groups per 100 g of solid resin, and the content of free, neutralized and/or neutralizable acid groups being between 5 and 350 mmol of acid groups per 100 g of solid resin, preferably between 9 and 120 mmol of acid groups per 100 g of solid resin.

    24.
    发明专利
    未知

    公开(公告)号:BR9303417A

    公开(公告)日:1994-03-15

    申请号:BR9303417

    申请日:1993-08-18

    Applicant: HOECHST AG

    Abstract: Water-dilutable (water-thinnable), two-component coating composition containing 1) a polyisocyanate component and 2) a polyester resin built up from the starting materials (a), (b), (c), (d) and (e) or ester-forming derivatives thereof, where the ratio between the total of the hydroxyl equivalents and the total of the carboxyl equivalents in the reactants is between 1:0.5 and 1:2.0, where (a) is at least one dicarboxylic acid which is not a sulphomonomer, (b) is from 0 to 15 mol% of at least one difunctional sulpho or phosphonomonomer whose functional groups are carboxyl and/or hydroxyl groups, containing at least one sulphonate or phosphonate group, (c) is at least one glycol, (d) is from 0 to 40 mol% of a higher-functional compound (functionality > 2) whose functional groups comprise hydroxyl and/or carboxyl groups, and (e) is from 0 to 20 mol% of a monofunctional carboxylic acid, where the amounts of free hydroxyl groups are between 30 and 350 milliequivalents of OH/100 g, and the content of free neutralised and/or neutralisable acid groups is between 5 and 350 meq/100 g. These coating compounds are particularly suitable for the production of primers, fillers, topcoats and single-coat finishes.

    25.
    发明专利
    未知

    公开(公告)号:NO932933D0

    公开(公告)日:1993-08-18

    申请号:NO932933

    申请日:1993-08-18

    Applicant: HOECHST AG

    Abstract: Water-dilutable (water-thinnable), two-component coating composition containing 1) a polyisocyanate component and 2) a polyester resin built up from the starting materials (a), (b), (c), (d) and (e) or ester-forming derivatives thereof, where the ratio between the total of the hydroxyl equivalents and the total of the carboxyl equivalents in the reactants is between 1:0.5 and 1:2.0, where (a) is at least one dicarboxylic acid which is not a sulphomonomer, (b) is from 0 to 15 mol% of at least one difunctional sulpho or phosphonomonomer whose functional groups are carboxyl and/or hydroxyl groups, containing at least one sulphonate or phosphonate group, (c) is at least one glycol, (d) is from 0 to 40 mol% of a higher-functional compound (functionality > 2) whose functional groups comprise hydroxyl and/or carboxyl groups, and (e) is from 0 to 20 mol% of a monofunctional carboxylic acid, where the amounts of free hydroxyl groups are between 30 and 350 milliequivalents of OH/100 g, and the content of free neutralised and/or neutralisable acid groups is between 5 and 350 meq/100 g. These coating compounds are particularly suitable for the production of primers, fillers, topcoats and single-coat finishes.

    26.
    发明专利
    未知

    公开(公告)号:NO924924D0

    公开(公告)日:1992-12-18

    申请号:NO924924

    申请日:1992-12-18

    Applicant: HOECHST AG

    Abstract: An aqueous filler composition containing a polyester resin which is built up from the starting materials (a), (b), (c), (d) and (e) or ester-forming derivatives thereof, where the sum of the reactants corresponds to 100 mol% and the ratio between the sum of the hydroxyl equivalents (eq of OH) and the sum of the carboxyl equivalents in the reactants is between 0.5 and 2.0, where (a) is at least one dicarboxylic acid which is not a sulpho or phosphorus monomer, (b) from 0 to 15 mol% of at least one difunctional sulpho or phosphono monomer whose functional groups are carboxyl or hydroxyl groups, containing at least one sulphonate or phosphonate group, (c) at least one difunctional compound which is derived from a glycol containing two -C(R)2-OH groups, (d) up to 40 mol% of a higher-functional compound (functionality > 2) whose functional groups comprise hydroxyl and/or carboxyl groups, and (e) from 0 to 20 mol% of a monofunctional carboxylic acid, where the radicals R in (c) may be, independently of one another, hydrogen, C1-C4-alkyl or C6-C10-aryl, the amounts of free hydroxyl groups are between 30 and 350 milliequivalents of OH/100 g, preferably between 100 and 250 meq of OH/100 g, and the content of free neutralised and/or neutralisable acid groups, in particular sulphonic, phosphonic or carboxyl groups, is between 5 and 350 meq of acid groups/100 g, preferably between 9 and 120 meq of acid groups/100 g.

    30.
    发明专利
    未知

    公开(公告)号:BR9504557A

    公开(公告)日:1997-02-25

    申请号:BR9504557

    申请日:1995-10-26

    Applicant: HOECHST AG

    Abstract: Polyurethanes with olefinic double bonds and a content of 20-80 wt.% ethylene oxide (EO) units in the form of polyethylene glycol chains (I) are obtd. by reacting (a) polyisocyanates with (b) polybutadiene derivs. which are reactive towards isocyanates, (c) opt. diols with at least one other OH or COOH gp., and (d) polyoxyalkylene glycol components with a mol. wt. of 500-10,000, at an equiv. ratio of NCO-OH gps. = (0.5:1)-(1.2:1). Also claimed are (i) water-dispersible mixts. (II) of radically-curable, unsatd. gp.-contg. resins contg. (A) 50-95 pts. wt. non-water-dispersible unsatd. synthetic resin(s) with an average mol. wt. (Mn) of 500-10,000 and (B) 5-50 pts. wt. (I); (ii) aq. coating materials contg. a radically- and/or oxidatively-curable mixt. (II) as binder, and opt. other conventional paint components and additives.

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