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    • 51. 发明申请
    • Impact-Resistant Polyurethane
    • 耐冲击聚氨酯
    • US20090171059A1
    • 2009-07-02
    • US11968622
    • 2008-01-02
    • Richard M. GerkinEdmond J. Derderian
    • Richard M. GerkinEdmond J. Derderian
    • C08G18/70
    • C08G18/758C08G18/10C08G18/12C08G18/4277C08G18/4854C08G18/5024C08G18/6685C08G18/664C08G18/6677C08G18/6674C08G18/6651C08G18/324
    • The present invention teaches a new process to produce novel, hard, optically clear, impact-resistant polyurethane polymers that are characterized by excellent thermo mechanical properties and chemical resistance, and the polymers made as a result of such a process.The polyurethanes are made by reacting a) a prepolymer made by reacting a polyisocyanate with a primary amine-terminated polyether with an amine functionality of about 2 and a molecular weight of >1000, and in which the free —NCO content of the resulting prepolymer is >18% by weight; with b) (i) a polyol having an average hydroxyl functionality greater than 2 and an average hydroxyl equivalent weight of from about 400 to about 1,000, and (ii) a curing agent that has isocyanate reactive groups, a functionality of 2 to 3 and a molecular weight of
    • 本发明教导了一种新的制造新颖的,硬的,光学透明的耐冲击聚氨酯聚合物的新方法,其特征在于优异的热机械性能和耐化学性,以及由于这种方法制成的聚合物。 聚氨酯通过使a)通过使多异氰酸酯与胺官能度为约2,分子量> 1000的伯胺封端的聚醚反应制备的预聚物制备,其中所得预聚物的游离-NCO含量为 > 18重量% 其中b)(i)平均羟基官能度大于2且平均羟基当量为约400至约1,000的多元醇,和(ii)具有异氰酸酯反应性基团,官能度为2至3的固化剂和 分子量<400。 更优选地,预聚物通过使脂环族多异氰酸酯与2000至4000分子量的伯胺封端的聚醚二胺反应制得,多元醇是分子量为约540至900的聚酯多元醇三醇​​,或聚醚二醇与 分子量在约650和2000之间,并且固化剂是二羟基己糖醇,芳族二胺或环己烷二甲醇。
    • 59. 发明授权
    • Pressure-sensitive adhesives exhibiting an improved shear strength at elevated temperatures
    • 在高温下表现出改善的剪切强度的压敏粘合剂
    • US07316828B2
    • 2008-01-08
    • US10297823
    • 2001-05-21
    • Thomas P. Abend
    • Thomas P. Abend
    • B05D5/10B05D3/02
    • C08G18/6216C08G18/5024C08G18/6254C08G18/706C08G2170/40C08G2170/80Y10T428/31547
    • The present invention relates to a process for preparing an adhesive bond by i) applying an aqueous dispersion or solution containing a) at least one isocyanate-reactive polymer and b) at least one solid surface-deactivated polyisocyanate to a ii) substrate, iii) drying the aqueous dispersion or solution at a temperature from 20 to 95° C. to form an adhesive layer and iv) treating the adhesive layer with heat at a temperature greater than the temperature used to dry the aqueous dispersion or solution. The present invention also relates to a process for preparing a bond by combining at least one substrate with the adhesive bond of the present invention.Adhesive bonds of the present invention have a shear strength at least 10% greater than the shear strength of adhesive bonds containing a substrate having at least one adhesive layer based on an aqueous dispersion or solution composed of a) and b) dried at a temperature from 20 to 95° C.
    • 本发明涉及一种通过以下方法制备粘合剂粘合的方法:i)施加含有a)至少一种异氰酸酯反应性聚合物的水性分散体或溶液,和b)至少一种固体表面失活的多异氰酸酯至ii)底物,iii) 在20至95℃的温度下干燥水性分散体或溶液以形成粘合剂层,以及iv)在高于用于干燥水性分散体或溶液的温度的温度下用热处理粘合剂层。 本发明还涉及通过将至少一种基材与本发明的粘合剂结合在一起来制备粘合剂的方法。 本发明的粘合剂粘合剂的剪切强度比含有至少一个粘合剂层的基材的粘合剂粘合剂的剪切强度大至少10%,所述粘合剂层基于由a)组成的水性分散体或溶液,和b)在 20〜95℃