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    Stable hardener for two-component coating material contains polyisocyanate with isocyanurate and-or biuret units and polyisocyanate with allophanate and-or urethane units, both derived from (cyclo)aliphatic di-isocyanate
    3.
    发明专利
    Stable hardener for two-component coating material contains polyisocyanate with isocyanurate and-or biuret units and polyisocyanate with allophanate and-or urethane units, both derived from (cyclo)aliphatic di-isocyanate 未知

    公开(公告)号：DE10057603A1

    公开(公告)日：2002-05-23

    申请号：DE10057603

    申请日：2000-11-21

    Applicant: BASF AG

    Inventor： BRUCHMANN BERND ,  MOHRHARDT GUENTER ,  RENZ HANS ,  JAEHME JOACHIM

    IPC: C08G18/78 ,  C08G18/80 ,  C08L75/04 ,  C08G18/08 ,  C08J7/16 ,  C09D175/04

    Abstract: Mixtures containing (a) polyisocyanates (A) with isocyanurate and/or biuret units, derived from aliphatic or cycloaliphatic di-isocyanates (C) and (b) other polyisocyanates (B) with allophanate and/or urethane units, derived from (b1) di-isocyanates (C) as above and (b2) polyhydric aliphatic or cycloaliphatic alcohols (alcohols A'), with a mol ratio of (A):(B) = (200:1)-(5:1). Independent claims are also included for (i) a method for the production of these mixtures by reacting (C) with (A') in a mol ratio of (200:1)-(5:1), optionally in presence of catalysts for the formation of allophanates and urethanes, optionally deactivating the catalyst, optionally removing unreacted (C) and then mixing the resulting (B) with (A) in the above ratio; (ii) an alternative method in which (A) contains mainly isocyanurate units, involving the reaction of (C) with (A') as above, optionally in presence of catalysts for the formation of isocyanurates, allophanates and urethanes; (iii) an alternative method in which (A) contains mainly biuret unit, involving the reaction of (C), (A') and a biuretising agent (D) in mol ratios of (C):(A') = (200:1)-(5:1) and (C):(D) = (200:1)-(5:1), optionally in presence of catalysts for the formation of biurets, allophanates and urethanes; (iv) two-component coating materials containing a polyisocyanate mixture as above and an isocyanate-reactive component; (v) a method for coating objects by mixing the two components (see iv above) and coating the resulting mixture onto the substrate within 12 hours; (vi) coated objects obtained by this method.

    S-TRIAZINE-RADICAL-CONTAINING POLYETHER POLYOL MIXTURES, PROCESS FOR THEIR PREPARATION AND THEIR USE
    5.
    发明专利
    S-TRIAZINE-RADICAL-CONTAINING POLYETHER POLYOL MIXTURES, PROCESS FOR THEIR PREPARATION AND THEIR USE 未知

    公开(公告)号：CA1250289A

    公开(公告)日：1989-02-21

    申请号：CA477958

    申请日：1985-03-29

    Applicant: BASF AG

    Inventor： MARX MATTHIAS ,  JAEHME JOACHIM

    IPC: C08G18/50 ,  C08G65/26 ,  C07D251/70

    Abstract: S-TRIAZINE-RADICAL-CONTAINING POLYETHER POLYOL MIXTURES, PROCESS FOR THEIR PREPARATION AND THEIR USE The invention relates to s-triazine radicalcontaining polyether polyol mixtures having functionalities of from 2 to 6 and hydroxyl numbers of from 210 to 640, prepared by the oxyalkylation of a mixture of one or more polyamino-1,3,5-triazines, preferably melamine, and an alkanol having a hydroxyl functionality of from 2 to 6 and having 2 to 18 carbon atoms, water, or their mixtures in the absence of catalysts and conventional inert polar solvents. The resulting polyether polyol mixtures are suitable for the preparation of rigid polyurethane, polyisocyanurate, and urethane group-containing polyisocyanuate foams produced by means of the polyisocyanate polyaddition process.

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