TWO-COMPONENT POLYURETHANE CONTAINING REACTIVE DILUENT

    公开(公告)号:JPH11193319A

    公开(公告)日:1999-07-21

    申请号:JP28757298

    申请日:1998-10-09

    Applicant: BASF AG

    Abstract: PROBLEM TO BE SOLVED: To provide a two-component polyurethane contg. a reactive diluent which is easy to manufacture and incorporated into a polyurethane without difficulty, and has no side-reaction with the structural component of the polyurethane. SOLUTION: This polyurethane comprises at least two-functional polyisocyanate component and polyol component, and the polyol component contains at least a cyclic acetal contg. a hydroxyl and/or a ketal. This method of manufacturing the polyurethane comprises a reaction of at least two- functional polyisocyanate with a compd. contg. an active hydrogen, and the compd. contg. an active hydrogen contains the cyclic acetal and/or the ketal as a reactive diluent.

    Diisocyanate with alicyclic allophanate groups, useful in 2-component polyurethane paint for coating metal, plastic, wood or glass

    公开(公告)号:DE19801322A1

    公开(公告)日:1999-07-22

    申请号:DE19801322

    申请日:1998-01-16

    Applicant: BASF AG

    Abstract: Diisocyanates with allophanate groups derived from alicyclic alcohols are obtained by reacting hexamethylene diisocyanate and/or isophorone diisocyanate with alcohols such as cyclohexanol, norbornol etc. Diisocyanates of formula (I) are claimed. R , R = group of formula -(CH2)6- (II) (type Ia), or one of R and R is group (II) and the other is a group of formula (III) (type Ib), or R and R are a group of formula (III) (type Ic). R = 5-6C cycloalkyl (optionally with up to 3 hydrogens replaced by 1-4C alkyl and/or with 1 or 2 CH2 groups replaced by O and/or NH and/or N(1-4C alkyl)), or 1-4C alkyl with one H replaced by 5-6C cycloalkyl (optionally substituted/modified as above) or by a pyrrolidone or morpholine residue with the N atom attached to the alkyl group. Independent claims are included for: (1) mixtures containing diisocyanates (Ia), (Ib) and/or (Ic), urethanes of formula OCNR NHC(O)OR (IV), diisocyanates of formula OCNR N(R )C(O)N(R )R N(R )C(O)NR R NCO (V) and mono-isocyanurates (VII) made up of 3 molecules selected from isophorone diisocyanate (IPDI) or hexamethylene diisocyanate (HDI); (2) a process for the production of these mixtures by reacting IPDI and/or HDI with a 5-6C cycloaliphatic alcohol (optionally modified as for R above) or a 1-4C alkanol substituted as for R above in a mol ratio (isocyanate:alcohol) of (1.5:1)-(20:1) in presence of a catalyst, then deactivating the catalyst and optionally removing unreacted isocyanate; (3) 2-component coating materials containing (A) a compound with groups which can react with polyisocyanate and (B) a compound of formula (I); (4) a coating process in which a coating composition is obtained by mixing (A) and (B) as above and then applied within 12 hours to the surface to be coated; and (5) objects coated by this process. R , R and R = same as R in formula (I); R = H or -COOR (VI), with 2 of the 4 groups being H and the other 2 being group (VI), two groups with the same meaning being separated by R .

    7.
    发明专利
    未知

    公开(公告)号:DE3866722D1

    公开(公告)日:1992-01-23

    申请号:DE3866722

    申请日:1988-02-06

    Applicant: BASF AG

    Abstract: Binders (I) contain (A) copolymer of (a) 5-70 wt.% monoester of acrylic and/or methacrylic acid with 2- to 6-hydric 2-18C alcohol; (b) 0.1-80 wt.% ester or amide of acrylic and/or methacrylic acid with monofunctional 2-20C alcohol or amine, contg. in ester or amide residue at least one open chain and/or cyclic urea gp.; (c) 1-60 wt.% ester of acrylic and/or methacrylic acid with monofunctional 1-20C alcohol; and (d) 0-60 wt.% other comonomer; and (d) 0-60 wt.% other comonomer; and (B) polyisocyanate, opt. with NCO gps. partly or wholly capped by CH-, NH-, or OH- acid blocking agents, having NCO functionality 2.5-6.

    Isocyanato compounds with capped isocyanate-reactive groups.

    公开(公告)号:ZA9610762B

    公开(公告)日:1998-06-22

    申请号:ZA9610762

    申请日:1996-12-20

    Applicant: BASF AG

    Abstract: PCT No. PCT/EP96/05634 Sec. 371 Date Jun. 18, 1998 Sec. 102(e) Date Jun. 18, 1998 PCT Filed Dec. 16, 1996 PCT Pub. No. WO97/23536 PCT Pub. Date Jul. 3, 1997Isocyanato compounds with capped, isocyanate-reactive groups are those of the formula I where R1 and R2 are hydrogen, C1-C10-alkyl, C6-C10-aryl or C7-C10-aralkyl or together form C3-C10-alkanediyl, X and Y are -O-, -S- or where R4 is hydrogen, C1-C20-alkyl which is uninterrupted or interrupted by oxygen atoms in ether function, or is C6-C10-aryl or C7-C10-aralkyl, R3 is C1-C10-alkanediyl which together with -X-CR1R2-Y- forms a 4-7-membered ring, in which either one hydrogen in R3 or the radical R4 in is replaced by an allophanate group RIa in which R5 is a divalent aliphatic, alicyclic, araliphatic or aromatic C2-C20 hydrocarbon unit, R6 is a single bond or a divalent aliphatic, alicyclic, araliphatic or aromatic C1-C20 hydrocarbon unit or a mono- or poly(C2-C4-alkylene oxide) unit, and R7 is a carbamoyl radical or a biuret group RIb in which one R8 is hydrogen and the other is as defined for R7 or a biuret group RIc in which one R9 is as defined for R7 and the other is as defined for R1 or a thioallophanate group RId

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