公开(公告)号：US20210380817A1

公开(公告)日：2021-12-09

申请号：US17403545

申请日：2021-08-16

Applicant: ARMSTRONG WORLD INDUSTRIES, INC.

Inventor： Steven L. MASIA ,  Michelle X. WANG ,  Kenneth G. CALDWELL

IPC: C09D5/03 ,  C09D5/16 ,  C09D5/14 ,  C08J7/04 ,  C08J7/043 ,  C09D7/40 ,  B29C71/02 ,  C08K5/02 ,  C08K9/04 ,  E04C2/02

Abstract: The present invention is directed to dirt and anti-microbial resistant compositions and articles that include a powder coating composition formed from a precursor comprising polymeric binder resin, cross-linker, and a blend of liquid carrier and anionic fluorosurfactant. The powder coating may be formed using a liquid-based anionic fluorosurfactant wherein the solids content of the anionic fluorosurfactant within the precursor is from about 13 wt. % to about 28 wt. %.

公开(公告)号：US20210262226A1

公开(公告)日：2021-08-26

申请号：US17315743

申请日：2021-05-10

Applicant: ARMSTRONG WORLD INDUSTRIES, INC.

Inventor： Steven L. MASIA

IPC: E04B9/00 ,  E04B1/86 ,  E04B9/04

Abstract: Described herein is a coated acoustic building material comprising a body comprising a first major surface opposite a second major surface; a coating having an upper surface opposite a lower surface, the lower surface of the coating facing the first major surface of the body, the coating comprising: polymeric binder having a glass transition temperature less than 0° C.; and a filler; wherein the coating is present as coalesced particles atop the first major surface in an amount ranging from about 210 g/m2 to about 1,300 g/m2.