Ppg Industries Ohio, Inc.

Anthony Palermo

Umesh C Desai

Charles M Kania

Marvis E Hartman

Shanti Swarup

Simion Coca

Kaliappa G Ragunathan

Copolymers prepared in aqueous medium from macromonomers and one or more ethylenically unsaturated monomers are disclosed. The copolymers are useful for sound and vibration dampening applications.

Aqueous-based polymers for sound deadening applications

A composition having sealing and sound dampening properties is disclosed which comprises one or more polyepoxides comprising at least two epoxide groups per molecule; a thermoplastic polyester polymer; a curing agent adapted to react with the polyepoxides; inorganic particles having an oil absorption value of less than 70; and inorganic microparticles different from the previously mentioned inorganic particles, the inorganic microparticles having an average particle size prior to incorporation into the composition ranging from 0.5 to 200 microns. Multilayer composites, coated substrates, and methods for forming sound dampening coatings on a metallic substrate are also provided.

Composition having sealing and sound dampening properties and methods related thereto

The present invention provides coating compositions including aqueous dispersions of polymeric microparticles prepared from nitrile, carbamate and amide functional materials, polyoxyalkylene acrylates and/or hydroxy functional materials, which are useful for sound deadening applications.

Coating compositions, coated substrates and methods for inhibiting sound transmission through a substrate

The present invention provides curable coating compositions including: (a) about 55 to about 99 weight percent of an epoxy-functional polymer containing at least two epoxide groups per molecule; (b) about 1 to about 45 weight percent of a thermoplastic polymer effective to reduce shrinkage of the curable composition upon curing and which is substantially insoluble in the epoxy-functional polymer; (c) about 1 to about 70 weight percent of ground vulcanized rubber particles having an average particle size ranging from about 1 to about 300 microns; (d) a curing agent adapted to cure the epoxy-functional polymer; and, optionally, vinyl chloride polymer.

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Gibsonia, PA, United States of America

Anthony Palermo