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2. 发明授权

US4797463A Two-component material and the use thereof 失效
标题翻译：双组分材料及其用途
公开(公告)号：US4797463A
公开(公告)日：1989-01-10
申请号：US162442
申请日：1988-03-01
申请人： Stefan Grimm , Michael Schatzle , Fritz Stahr
发明人： Stefan Grimm , Michael Schatzle , Fritz Stahr
IPC分类号： C08G18/52 , C08L75/08 , C08G18/10
CPC分类号： C08L75/08
摘要： A two-component material based on curable prepolymers and conventional additives is described which, unlike conventional two-component materials, contains hardenable prepolymer in both individual components, the prepolymer in the first component being a polyurethane prepolymer with free NCO-groups and the prepolymer in the second component is a polymer with free SH-groups. The first component contains curing agent and optionally accelerator for the polymer with free SH-groups and the second component contains curing agent and optionally accelerator for the polyurethane prepolymer with free NCO-groups. Through the use of two prepolymers, the two components of the two-component material can be used in a volume ratio favorable for practical purposes. It is also possible to set the viscosity and density of the two individual components to roughly the same values, so that no problems are caused when mixing the two components. The described two-component materials cure very rapidly and are less sensitive to dosing and mixing errors. In addition, the described two-component materials give high strength values for a given elasticity in the cured state. The described two-component materials are particularly suitable as sealants, adhesives, coating materials and moulding compounds.
摘要翻译：描述了基于可固化预聚物和常规添加剂的双组分材料，其与常规双组分材料不同，在两个单独组分中都含有可固化预聚物，第一组分中的预聚物是具有游离NCO-基团的聚氨酯预聚物，第二组分是具有游离SH-基团的聚合物。第一组分含有固化剂和任选的用于具有游离SH基团的聚合物的促进剂，第二组分含有固化剂和任选的用于具有游离NCO-基团的聚氨酯预聚物的加速剂。通过使用两种预聚物，双组分材料的两种组分可以以有利于实际目的的体积比使用。也可以将两个单独组分的粘度和密度设定为大致相同的值，从而在混合两种组分时不会引起任何问题。所描述的双组分材料非常快速地固化并且对给料和混合误差的敏感性差。此外，所述双组分材料在固化状态下给定给定弹性的高强度值。所述的双组分材料特别适合作为密封剂，粘合剂，涂料和模塑料。

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