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    • 1. 发明授权
    • Polyisocyanates containing allophanate groups
    • 含有脲基甲酸酯基的多异氰酸酯
    • US5672736A
    • 1997-09-30
    • US555200
    • 1995-11-08
    • Martin BrahmLutz SchmalstiegJosef Pedain
    • Martin BrahmLutz SchmalstiegJosef Pedain
    • C07C273/18C07C275/60C08G18/78C09D175/00C07C263/00
    • C08G18/7837C07C275/60
    • The present invention relates to a process for preparing polyisocyanates containing allophanate groups by reacting compounds a), which i) contain urethane groups, but which are substantially free of hydroxyl groups and isocyanate groups, ii) have an average of at least two urethane groups per molecule, iii) are prepared by reacting organic isocyanates a1) with organic hydroxyl compounds a2) and iv) have an average molecular weight of at most 2,500, with excess quantities, based on the urethane groups, of distillable organic polyisocyanates b) to form polyisocyanates containing allophanate groups and subsequently removing by distillation the unreacted excess of component b) to a residual content of less than 0.5 wt. %, provided that polyisocyanates a1) and polyisocyanates b) are different. The present invention also relates to the products obtained from this process and to their use as binders or binder components in coating compositions.
    • 本发明涉及通过使具有氨基甲酸酯基但不含羟基和异氰酸酯基的化合物a)反应制备含有脲基甲酸酯基团的多异氰酸酯的方法,ii)基本上不含羟基和异氰酸酯基团,ii)平均具有至少两个氨基甲酸酯基团 分子,iii)通过使有机异氰酸酯a1)与有机羟基化合物a2)和iv)具有至多2500的平均分子量,基于氨基甲酸酯基团的过量的可蒸馏有机多异氰酸酯b)来制备,以形成多异氰酸酯 含有脲基甲酸酯基团,随后通过蒸馏将未反应的组分b)过量除去至少于0.5wt。 %,条件是多异氰酸酯a1)和多异氰酸酯b)不同。 本发明还涉及从该方法获得的产品及其作为涂料组合物中的粘合剂或粘合剂组分的用途。
    • 8. 发明授权
    • Isocyanate prepolymers containing ether and ester groups a process for
their preparation and their use for the production of coating, sealing
or casting composition
    • 含有醚和酯类的异氰酸酯预处理剂其制备及其用于生产涂料,密封或铸造组合物的方法
    • US5151484A
    • 1992-09-29
    • US823226
    • 1992-01-21
    • Lutz SchmalstiegPeter HihleinJosef PedainWolfhart Wieczorrek
    • Lutz SchmalstiegPeter HihleinJosef PedainWolfhart Wieczorrek
    • C08G18/10C08G18/42C08G18/48C09D175/06C09D175/08C09K3/10
    • C08G18/4891C08G18/10C08G2190/00
    • The present invention relates to isocyante prepolymers containing ether and ester groups, having an isocyanate content of 1.9% to 25% by weight and based on the reaction product ofA) a polyisocyanate component containing at least one organic polyisocyanate having an average molecular weight of 168 to 1000,B) an organic polyhydroxyl component containing at least one polyhydroxyl compound containing ether and ester groups, having an average hydroxyl functionality of 2 to 3 and an average hydroxyl number of 40 to 90 and based on the esterification products ofi) polyether polyols having an average hydroxyl number of 200 to 600 withii) from 25 to 67 equivalent-%, based on the hydroxyl groups of component (i) and the carboxyl groups of component (ii), of an organic carboxylic acid component containing at least one organic monocarboxylic acid or a mixture of at least one organic monocarboxylic acid with up to 20 carboxyl equivalent-%, based on all the carboxylic acids, of polybasic organic carboxylic acids.The present invention also relates to a process for the preparation of these isocyanate prepolymers containing ether and ester groups and to their as binders or binding components in low solvent or solvent-free polyurethane coating compositions, sealing compositions or casting compositions.
    • 本发明涉及含有醚和酯基的异氰酸酯预聚物,其异氰酸酯含量为1.9〜25重量%,基于A)含有至少一种平均分子量为168的有机多异氰酸酯的多异氰酸酯组分的反应产物 至100,B)含有至少一种含醚和酯基的多羟基化合物的有机多羟基组分,其平均羟基官能度为2至3,平均羟值为40至90,并基于i)聚醚多元醇的酯化产物 平均羟基数为200至600,其中ii)基于组分(i)的羟基和组分(ii)的羧基),含有至少一个有机羧酸组分的25至67当量% 有机单羧酸或至少一种有机一元羧酸与至多20%羧基当量%的混合物,基于所有羧酸,多元组织 c羧酸。 本发明还涉及在低溶剂或无溶剂的聚氨酯涂料组合物,密封组合物或浇铸组合物中制备含有醚和酯基的这些异氰酸酯预聚物以及它们作为粘合剂或粘结组分的方法。
    • 10. 发明授权
    • Reactive compositions with an extended pot life
    • 具有延长适用期的活性组合物
    • US06624282B2
    • 2003-09-23
    • US08908655
    • 1997-08-07
    • Stefan GrothJosef PedainLutz SchmalstiegDetlef-Ingo Schütze
    • Stefan GrothJosef PedainLutz SchmalstiegDetlef-Ingo Schütze
    • C08G1810
    • D06N3/14C08G18/10C08G18/12C08G18/4812C08G18/6607C08G18/6677C08G18/3215C08G18/6674
    • The present invention relates to reactive compositions containing (A) NCO prepolymers based on (cyclo)aliphatic polyisocyanates having an NCO content of 1 to 8 wt. % and a monomeric polyisocyanate content of less than 2 wt. %, (B) amine-free chain extenders containing at least 50 equivalent percent of a compound melting between 50° and 160° C. having formula (I) HO—X—Y—X—OH  (I)  wherein Y denotes methylene, ethylene, —C≡C—, 1,4-, 1,3-, or 1,2-cyclohexylene, or 1,4-, 1,3-, or 1,2-phenylene, and X denotes methylene, —OCH2CH2— (wherein oxygen is bonded to group Y), or 1,4-, 1,3-, or 1,2-cyclohexylene, and (C) 0 to 20 wt. %, relative to component (A), of inert organic solvents, wherein the equivalent ratio of the free NCO groups of component (A) to the NCO-reactive groups of component (B) is 0.90 to 1.35.
    • 本发明涉及含有(A)基于(环)脂族多异氰酸酯的NCO预聚物的反应性组合物,其NCO含量为1-8重量% %和单体多异氰酸酯含量小于2wt。 %,(B)含有至少50当量%的熔点在50°至160℃之间的化合物的无胺扩链剂,式(I)其中Y表示亚甲基,亚乙基,-C = C-, 1,3-或1,2-亚环己基,或1,4-,1,3-或1,2-亚苯基,X表示亚甲基,-OCH 2 CH 2 - (其中氧与基团Y键合),或1, 4-,1,3-或1,2-亚环己基,和(C)0-20重量% 组分(A)的游离NCO基与组分(B)的NCO反应性基团的当量比为0.90至1.35,相对于组分(A)为惰性有机溶剂的%。