公开(公告)号：US20150322292A1

公开(公告)日：2015-11-12

申请号：US14270554

申请日：2014-05-06

Applicant: Bayer MaterialScience LLC

Inventor： Joseph Pierce ,  Kathy Allen ,  Irene Yano

IPC: C09D175/14

CPC classification number: C09D175/14 ,  C08G18/0842 ,  C08G18/0866 ,  C08G18/283 ,  C08G18/6229 ,  C08G18/73 ,  C08G18/8064 ,  C09D175/04

Abstract: Two-component water-based coating compositions are described. The coating compositions include a mixture of components that includes: (a) an aqueous dispersion of a resin comprising functional groups reactive with isocyanates; and (b) a hydrophilicized polyisocyanate. The mixture includes (i) propylene carbonate that is present in the mixture in an amount of greater than 2 percent by weight, based on the total weight of the mixture; and (ii) a ratio of isocyanate groups to functional groups reactive with isocyanates of 0.8 to 3.0:1.

Abstract translation: 描述了双组分水性涂料组合物。 涂料组合物包括组分的混合物，其包括：（a）包含与异氰酸酯反应的官能团的树脂的水分散体; 和（b）亲水化多异氰酸酯。 混合物包括（i）以混合物的总重量计大于2重量％的量存在于混合物中的碳酸亚丙酯; 和（ii）异氰酸酯基与官能团与异氰酸酯反应的比例为0.8-3.0:1。