The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 15, 2007
Filed:
May. 18, 2001
Calum H. Munro, Wexford, PA (US);
Charles M. Kania, Natrona Heights, PA (US);
Umesh C. Desai, Wexford, PA (US);
Calum H. Munro, Wexford, PA (US);
Charles M. Kania, Natrona Heights, PA (US);
Umesh C. Desai, Wexford, PA (US);
PPG Industries Ohio, Inc., Cleveland, OH (US);
Abstract
Coating materials comprising polymeric particles in a geometrically ordered array are disclosed. The particles can be formed from materials having different glass transition temperatures; this allows for phase segregation between areas of different glass transition temperatures within each particle. Typically, at least 50 percent of the particles will form a hexagonal array, capable of exhibiting Bragg diffraction. Because the particles within the array do not coalesce to any appreciable extent, significant surface area is provided by the present coating materials. Thus, the present materials have particularly good sound deadening properties. Substrates coated with the present materials are also disclosed, as are methods for inhibiting sound transmission through a substrate using these coatings.