公开(公告)号：US20010034405A1

公开(公告)日：2001-10-25

申请号：US09842613

申请日：2001-04-26

Applicant: Imperial Chemical Industries Plc.

Inventor： Philip L. Taylor

IPC: C08K003/20 ,  C08L079/00 ,  C08L067/00

CPC classification number: C09D167/04

Abstract: An aqueous coating composition (especially a paint or varnish for buildings, vehicles, furniture and metal or plastics containers) which can form coatings on surfaces at ambient temperatures which on drying have improved early hardness and tack-resistance. The coating composition comprises water, optionally pigment and other conventional ingredients and dispersed particles of a highly non-crystalline polyester containing repeating hydroxyalkanoate units (preferably 3-hydroxybutyrate or 3-hydroxyvalerate or their copolymers). The polyester is non-crystalline to the extent that at least 60 wt % of the particles have a density of less than 102 % of Dmin where Dmin is the minimum density attainable by the polyester. The composition may also contain conventional film-forming polymers of the types used in aqueous paint or varnish.

Abstract translation: 水性涂​​料组合物（特别是用于建筑物，车辆，家具和金属或塑料容器的油漆或清漆），其可以在环境温度下在表面上形成涂层，其在干燥时具有改善的早期硬度和耐粘性。 涂料组合物包含水，任选的颜料和其它常规成分以及含有重复羟基链烷酸酯单元（优选3-羟基丁酸酯或3-羟基戊酸酯或其共聚物）的高度非结晶聚酯的分散颗粒。 聚酯是非结晶的，至少至少60重量％的颗粒的密度小于Dmin的102％，其中Dmin是由聚酯可达到的最小密度。 该组合物还可以含有用于水性涂料或清漆中的常规成膜聚合物。