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1. 发明申请

WO2010007061A1 WATERBASED FORMALDEHYDE FREE ADHESIVES 审中-公开
标题翻译：含水甲醛免费粘合剂
公开(公告)号：WO2010007061A1
公开(公告)日：2010-01-21
申请号：PCT/EP2009/058988
申请日：2009-07-14
申请人： DSM IP ASSETS B.V. , TENNEBROEK, Ronald , OVERBEEK, Gerardus, Cornelis , SLOT, VAN DER, Saskia, Carolien , AABICH, Mourad , ZAMBEEK, Marcel
发明人： TENNEBROEK, Ronald , OVERBEEK, Gerardus, Cornelis , SLOT, VAN DER, Saskia, Carolien , AABICH, Mourad , ZAMBEEK, Marcel
IPC分类号： C08G18/08 , C08G18/12 , C09J175/04 , C08L33/12
CPC分类号： C08G18/0823 , B32B7/12 , B32B21/08 , B32B21/14 , B32B27/40 , B32B2307/414 , B32B2307/7265 , B32B2405/00 , C08G18/12 , C08G18/4854 , C08G18/6692 , C08G18/755 , C08L2666/04 , C09J175/04 , Y10T156/1043 , Y10T428/31551 , C08G18/3231
摘要： There is described a formaldehyde-free laminating adhesive, optionally the with less than 3% by weight of co-solvent(s), the adhesive comprising: (I) a polyurethane that comprises from 30 % to 65 % by weight of hard segments, the polyurethane being obtained and/or obtainable from a first polyurethane dispersion (PUD) comprising the reaction product of (A) an organic isocyanate and (B) at least one chain extender reacting in a respective stoichiometric ratio (NCO to NCO reactive group) from 1:1 to 1:2.5 and; optionally the NCO reactive group(s) of the chain extender comprises one or more hydrazinyl-like group(s) (denoting isocyanate reactive groups selected from the group comprising, preferably consisting of: -NRNR 2 (hydrazinyl groups); -CONRNR 2 (hydrazidyl groups), -NRCONRNR 2 (semicarbazidyl groups); and -ONR 2 (oxyamine groups), where each R is independently selected from H or C 1-10 hydrocarbo); and (II) optionally a second polymer obtained and/or obtainable from a polymer precursor comprising at least one unsaturated moiety, preferably an ethylenically unsaturated group, and where optionally the second polymer may be iminated; with the provisos that: (α) when the first polyurethane does not comprise hydrazinyl-like group(s) then the second polymer is iminated; and (β) when the second polymer is un-iminated or is absent then the first polyurethane comprises hydrazinyl-like group(s). These adhesives may be used to adhere surface veneers to wood and/or to laminate the layers within plywood.
摘要翻译：描述了不含甲醛的层压粘合剂，任选地具有小于3重量％的助溶剂，粘合剂包含：（I）包含30重量％至65重量％硬链段的聚氨酯，所述聚氨酯由包含（A）有机异氰酸酯和（B）至少一种以相应的化学计量比（NCO至NCO反应性基团）反应的至少一种扩链剂的反应产物的第一聚氨酯分散体（PUD）获得和/或获得， 1：1至1：2.5和; 任选地，扩链剂的NCO反应性基团包含一个或多个肼基 - 类基团（表示选自以下的异氰酸酯反应性基团：优选由以下基团组成：-NRNR2（腙基）; -CONRNR2（肼基），-NRCONRNR2（氨基脲基）;和-ONR2（羟胺基），其中每个R独立地选自H或C1-10氢化碳基）; 和（II）任选的第二聚合物，其由包含至少一个不饱和部分，优选烯键式不饱和基团的聚合物前体获得和/或可获得，并且其中任选地第二聚合物可以被亚胺化; 条件是：（a）当第一聚氨酯不包含肼基 - 类基团时，则第二聚合物被亚胺化; 和（ß），当第二聚合物未被或不存在时，第一聚氨酯包含类似肼基的基团。这些粘合剂可以用于将表面胶合板粘附到木材上和/或将胶层层压在胶合板中。

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