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    Process for the production of modified polyisocyanates, the polyisocyanates obtainable by this process and their use as binders or as a binder component
    1.
    发明授权
    Process for the production of modified polyisocyanates, the polyisocyanates obtainable by this process and their use as binders or as a binder component 失效
    用于制备改性多异氰酸酯的方法，可通过该方法获得的多异氰酸酯及其作为粘合剂或粘合剂组分的用途

    公开(公告)号：US4935486A

    公开(公告)日：1990-06-19

    申请号：US343328

    申请日：1989-04-26

    Applicant: Wolfgang Wellner

    Inventor： Wolfgang Wellner

    IPC: C07C263/00 ,  C07C67/00 ,  C07C241/00 ,  C07C265/10 ,  C07C265/12 ,  C07C271/12 ,  C08G18/10 ,  C08G18/79 ,  C08G18/80

    CPC classification number: C08G18/8045 ,  C08G18/10 ,  C08G18/791

    Abstract: The present invention is directed to a process for the production of urethane- or isocyanurate-modified polyisocyanates based on a starting diisocyanate selected from (i) 2,4-diisocyanatotoluene or mixtures thereof with up to about 35%, based on the mixture, of 2,6-diisocyanatotoluene, (ii) mixtures of the diisocyanates mentioned under (i) with up to 80 NCO equivalent %, based on the mixture, of 1,6-diisocyanatohexane and (iii) 1-isocyanato-3,3,5-trimethyl-5-isocyanatomethyl cyclohexane by reacting the starting diisocyanate with substoichiometric quantities of polyhydric alcohols or trimerizing a portion of the isocyanate groups of the starting diisocyanate, removing sufficient excess, unreacted starting diisocyanate to obtain modified polyisocyanates containing at most 3% by weight, based on solids, of monomeric starting diisocyanate, characterized in that, the content of starting diisocyanate is further reduced by adding at least 10 mol-% water, based on the content of unreacted 2,4-diisocyanatotoluene or 1-isocyanato-3,3,5-trimethyl-5-isocyanatomethyl cyclohexane present, to the modified polyisocyanates.The present invention is also directed to the low-monomer polyisocyanates obtained by this process and their use as the binder component in one-component or two-component polyurethane lacquers.

    Abstract translation: 本发明涉及一种制备基于起始二异氰酸酯的起始二异氰酸酯的方法，所述起始二异氰酸酯选自（i）2,4-二异氰酸根合甲苯或其混合物，基于混合物，最高约35％ 2,6-二异氰酸基甲苯，（ii）（i）中提到的二异氰酸酯与基于混合物的高达80NCO当量％的混合物的1,6-二异氰酸根合己烷和（iii）1-异氰酸根合-3,3,5 通过使起始二异氰酸酯与亚化学计量的多元醇反应或将起始二异氰酸酯的一部分异氰酸酯基团三聚，除去足够多的未反应的起始二异氰酸酯，得到含有至多3重量％的改性多异氰酸酯， 基于固体的单体起始二异氰酸酯，其特征在于，通过加入至少10mol％的水，基于未反应的2,4-二异氰酸酯的含量进一步降低起始二异氰酸酯的含量， 二异氰酸根合甲苯或1-异氰酸酯基-3,3,5-三甲基-5-异氰酸甲酯环己烷存在于改性的多异氰酸酯中。 本发明还涉及通过该方法获得的低单体多异氰酸酯及其在单组分或双组分聚氨酯漆中作为粘合剂组分的用途。

    Process for polyisocyanates
    3.
    发明授权
    Process for polyisocyanates 失效
    多异氰酸酯工艺

    公开(公告)号：US4465639A

    公开(公告)日：1984-08-14

    申请号：US461247

    申请日：1983-01-26

    Applicant: Richard Hatfield, Jr.

    Inventor： Richard Hatfield, Jr.

    IPC: C07C265/14 ,  C07C67/00 ,  C07C241/00 ,  C07C263/10 ,  C08G18/76 ,  C08G18/80 ,  C07C118/02 ,  C07C119/048

    CPC classification number: C07C263/10 ,  C08G18/7664 ,  C08G18/8045

    Abstract: Addition of controlled amounts of water to the reaction mixture produced by phosgenation of a mixture of polymethylene polyphenyl polyamines (and like polyamines produced by condensation of formaldehyde and aromatic amines) prior to complete removal of excess phosgene gives rise to the corresponding polymethylene polyphenyl polyisocyanates having significantly improved properties. Not only is the color of the product, and of polyurethane foams prepared therefrom, significantly lighter but the proportion of higher molecular weight products is significantly less and the viscosity is less. No undesirable by-products are introduced into the polyisocyanate as a result of the process.

    Abstract translation: 在完全去除过量的光气之前，通过多亚甲基多苯基多胺（和类似于通过甲醛和芳族胺的缩合产生的多胺）的混合物的光气化产生的反应混合物中加入受控量的水，导致相应的多亚甲基多苯基多异氰酸酯具有显着的 改善性能。 不仅产品的颜色和由其制备的聚氨酯泡沫的颜色明显较浅，而且较高分子量产品的比例明显较小，粘度较低。 作为该方法的结果，不会将不期望的副产物引入到多异氰酸酯中。

    Surface isocyanate groups process for providing solid particles with a coating having reactive
    4.
    发明授权
    Surface isocyanate groups process for providing solid particles with a coating having reactive 失效
    用具有反应性涂层提供固体颗粒的表面异氰酸酯组合方法

    公开(公告)号：US3758334A

    公开(公告)日：1973-09-11

    申请号：US3758334D

    申请日：1971-09-08

    Applicant: HERCULES INC

    Inventor： DEHM H

    IPC: C08G18/00 ,  C08G18/30 ,  C08G18/80 ,  B32B1/00 ,  B32B27/14

    CPC classification number: C08G18/8045 ,  C08G18/00 ,  C08G18/302

    Abstract: SOLID PARTICLES ARE PROVIDED WITH A CROSS-LINKED POLYMERIC COATING HAVING A HIGH CONCENTRATION OF REACTIVE SURFACE ISOCYANATE GROUPS. AN ORGANIC POLYISOCYANATE WITH AN NCO FUNCTIONALITY OF AT LEAST 3 IS DISSOLVED IN AN APROTIC SOLVENT, INERT TO THE PARTICLES TO BE COATED AND THEN MIXED WITH A LIMITED AMOUNT OF WATER. THE PARTICLES TO BE COATED ARE CONTACTED WITH THE REACTION MIXTURE FORMED ABOVE UNTIL A CROSS-LINKED POLYMER IS ABSORBED OVER THE ENTIRE SURFACE OF THE PARTICLES. THE PARTICLES ARE THEN RECOVERED FROM THE REACTION MIXTURE AND STORED IN AN INERT ATMOSPHERE UNTIL FURTHER USE. A CATALYST MAY BE USED. THE SOLID PARTICLES COATED MAY BE ORGANIC, INORGANIC, POLYMERIC OR SILCEOUS. THE COATED PARTICLES ARE USEFUL AS FILLERS IN POLYMERIC SYSTEMS.

    Reaction of organic diisocyanates with water
    5.
    发明授权
    Reaction of organic diisocyanates with water 失效
    有机二异氰酸酯与水反应

    公开(公告)号：US4176132A

    公开(公告)日：1979-11-27

    申请号：US882466

    申请日：1978-03-01

    Applicant: Akira Ide ,  Sojiro Matsumoto

    Inventor： Akira Ide ,  Sojiro Matsumoto

    IPC: C07C263/16 ,  C07C265/04 ,  C07C265/14 ,  C08G18/78 ,  C08G18/80 ,  C09D101/18 ,  C09D175/00 ,  C09J175/00 ,  C07C119/042 ,  C07C119/045 ,  C07C119/048

    CPC classification number: C08G18/302 ,  C07C263/18 ,  C08G18/7825 ,  C08G18/8045

    Abstract: A process for producing an organic polyisocyanate having a long storage life which comprises reacting an aliphatic, alicyclic or araliphatic diisocyanate monomer with water in the presence of a solvent comprising a mixture of at least one ethylene glycol derivative represented by the formula (I):R.sub.1 O(CH.sub.2 CH.sub.2 O).sub.n R.sub.2 (I)wherein R.sub.1 and R.sub.2, which may be the same or different, each represents an alkyl group having 1 to 4 carbon atoms, which may be straight chain or branched chain, or an acetyl group and n is an integer of 1 to 2; and at least one phosphoric acid derivative represented by the formula (II): ##STR1## wherein R.sub.3 R.sub.4 and R.sub.5, which may be the same or different, each represents a methyl group or an ethyl group.

    Abstract translation: 一种具有长存储寿命的有机多异氰酸酯的制备方法，其包括使脂族，脂环族或芳脂肪族二异氰酸酯单体与水在溶剂存在下反应，所述溶剂包含至少一种由式（I）表示的乙二醇衍生物：R1O （CH 2 CH 2 O）n R 2（I）其中可以相同或不同的R 1和R 2各自表示具有1至4个碳原子的烷基，其可以是直链或支链，或乙酰基，n是整数 1至2; 和由式（II）表示的至少一种磷酸衍生物：其中R 3 + L，R 4和R 5可以相同或不同，各自表示甲基或乙基。

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