专利名称：Two component polyurethane coating
compositions comprising isocyanuratecompositions from bis (isocyanatomethyl)cyclohexane and from aliphatic diisocyanates
发明人：Argypropoulas, John N.,Xu,
Allen,Bhattacharjee, Debkumar,Yang,Aaron,Schall, Donald C.,Luo, Louie
申请号：EP11186949.1申请日：20111027公开号：EP2455409A2公开日：20120523
摘要：The present invention provides two-component polyurethane compositionscomprising, as one component, polyisocyanate compositions of the isocyanurate of oneor more bis(isocyanatomethyl)cyclohexane or, preferably, a mixture of two or more ofthese, and of the isocyanurate of hexamethylene diisocyanate (HDI trimer),and, as theother component, a mix of a soft polyol having a hydroxyl functionality of from 2.5 to 5.0and a molecular weight of from 500 to 3,000, and a hard polyol. Such compositionsprovide coatings, especially clear topcoats, which exhibit excellent scratch and mar andsolvent resistance in addition to a good balance of hardness and flexibility without theneed for increasing the volatile organic content (VOC) of the compositions. Also providedare compositions of a polyisocyanate compositions of the isocyanurate of one or morebis(isocyanatomethyl)cyclohexane with soft polyol which have lower VOCs.
申请人：Rohm and Haas Company,Dow Global Technologies LLC
地址：100 Independence Mall West Philadelphia, Pennsylvania 19106-2399 US,2040Dow Center Midland, MI 48674 US
国籍：US,US
代理机构：Buckley, Guy Julian
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