Anionic water dispersed polyurethane polymer for improved coatings and
adhesives
    3.
    发明授权
    Anionic water dispersed polyurethane polymer for improved coatings and adhesives 失效
    阴离子水分散聚氨酯聚合物,用于改进涂料和粘合剂

    公开(公告)号:US5354807A

    公开(公告)日:1994-10-11

    申请号:US101430

    申请日:1993-08-03

    摘要: Improved anionic water dispersible polyurethanes are disclosed. Polyurethane-urea polymers in aqueous dispersion are obtained by chain extending an NCO-containing prepolymer in aqueous medium. The NCO-containing prepolymer is prepared by reacting a polyisocyanate with an active hydrogen-containing compound such as a polyol and dimethylolpropionic acid (DMPA) to form a pre-prepolymer and to this is added a diamine monomer containing a pendant aliphatic, to form the prepolymer which is then dispersed in water and chain extended. The improved anionic water dispersible polyurethane polymers of the invention form excellent coatings and adhesives.

    摘要翻译: 公开了改进的阴离子水分散性聚氨酯。 水性分散体中的聚氨酯 - 脲聚合物是通过在含水介质中将含NCO的预聚物链延伸而获得的。 含有NCO的预聚物是通过使多异氰酸酯与多元醇和二羟甲基丙酸(DMPA)等含活性氢的化合物反应形成预聚物来制备的,并加入含有侧链脂肪族的二胺单体,形成 预聚物,然后分散在水中并扩链。 本发明改进的阴离子水分散性聚氨酯聚合物形成优异的涂料和粘合剂。

    Melamine-formaldehyde resin based adhesive compositions
    5.
    发明授权
    Melamine-formaldehyde resin based adhesive compositions 失效
    三聚氰胺 - 甲醛树脂基粘合剂组合物

    公开(公告)号:US5717025A

    公开(公告)日:1998-02-10

    申请号:US714721

    申请日:1996-09-16

    摘要: Melamine-formaldehyde based adhesive compositions having enhanced bond strengths when subjected to thermal and mechanical stresses. The invention further describes a process wherein melamine-formaldehyde resins are reacted with amines in the presence of water-based sulfonated polyurethane-urea polymers. The process substantially reduces the release of formaldehyde and generates a network of interpenetrating polymers having enhanced peel adhesion failure temperatures.

    摘要翻译: 三聚氰胺 - 甲醛基粘合剂组合物在经受热和机械应力时具有增强的粘结强度。 本发明还描述了一种方法,其中三聚氰胺 - 甲醛树脂在水基磺化聚氨酯 - 脲聚合物存在下与胺反应。 该方法基本上减少甲醛的释放并产生具有增强的剥离粘附破坏温度的互穿聚合物网络。

    Aqueous paint compositions comprising polyether amides
    7.
    发明授权
    Aqueous paint compositions comprising polyether amides 失效
    包含聚醚酰胺的水性涂料组合物

    公开(公告)号:US6114430A

    公开(公告)日:2000-09-05

    申请号:US382813

    申请日:1999-08-25

    CPC分类号: C09D177/06 C08L77/06

    摘要: The present invention discloses aqueous paint compositions having enhanced adhesion characteristics. The compositions contain at least one water-soluble and/or water-dispersible polyether amide comprising the reaction product of polyoxyalkylene diamines and polycarboxylic acids. The dried compositions have improved adhesion characteristics making them particularly useful protective and/or decorative coatings on substrates including wood, metal, concrete, and plastic.

    摘要翻译: 本发明公开了具有增强的粘附特性的水性涂料组合物。 该组合物含有至少一种包含聚氧化烯二胺和多元羧酸的反应产物的水溶性和/或水分散性聚醚酰胺。 干燥的组合物具有改善的粘合特性,使得它们在基材(包括木材,金属,混凝土和塑料)上特别有用的保护和/或装饰涂层。