Application of polymeric powders to a substrate
The present invention provides a method for coating a substrate with a thermoplastic polymeric powder, especially polyester powder, by forming an emulsion containing fine particles of such powder, applying the emulsion to the substrate, and heating the coated substrate to a temperature sufficiently high to evaporate the liquid from the emulsion and thermally bond the particles to the substrate. The emulsifying agents are fatty acid esters of glycerol.
Description
Patent History
Patent number: T999002
Type: Grant
Filed: Oct 2, 1979
Date of Patent: Oct 7, 1980
Inventors: Henry C. Twiggs (Kingsport, TN), James L. Suggs (Greeneville, TN), Dan F. Buck (Kingsport, TN)
Application Number: 6/81,233
Type: Grant
Filed: Oct 2, 1979
Date of Patent: Oct 7, 1980
Inventors: Henry C. Twiggs (Kingsport, TN), James L. Suggs (Greeneville, TN), Dan F. Buck (Kingsport, TN)
Application Number: 6/81,233
Classifications
Current U.S. Class:
427/3855;
427/3935
International Classification: B05D 302;
International Classification: B05D 302;
