公开(公告)号：US20180327624A1

公开(公告)日：2018-11-15

申请号：US15773587

申请日：2016-11-21

Applicant: Rohm and Haas Company

Inventor： Joe Mallardi ,  Charles J. Rand ,  Janah C. Szewczyk

IPC: C09D133/08 ,  E04D7/00

CPC classification number: C09D133/08 ,  C08L2201/52 ,  E04D7/00 ,  C08L2666/34 ,  C08L2666/54 ,  C08F2220/1825 ,  C08F220/14 ,  C08F220/06 ,  C08F212/08

Abstract: The present invention provides compositions for and methods of rapidly making roof coatings, wherein two-component aqueous compositions comprise a component one that has a pH of from 7.5 to 10 (i) one or more emulsion copolymers having a glass transition temperature (Tg) as determined by differential scanning calorimetry (DSC) of from −45° C. to 0° C., and (ii) one or more anionic surfactants, and, in a separate component, (iii) an aqueous acid chosen from a (poly)carboxylic acid or polymeric polyacid. The compositions have little or no ammonia, set within 10 minutes, preferably, a minute or less, and allow one to apply a film as thick as from 0.3 to 3 mm in a single application by co-spraying the two-components or applying them sequentially in one or several passes over a roofing substrate.