Henry A Tronco

US Patent:

20040131786, Jul 8, 2004

Filed:

Oct 29, 2003

Appl. No.:

10/696088

Inventors:

James Matthews - Berwyn PA, US
Henry Tronco - Springfield PA, US

International Classification:

C08F120/02
B05D003/02

US Classification:

427/385500, 525/329700

Abstract:

The present invention relates to a coating composition for coating various substrates, particularly automotive bodies. A crosslinkable component of the composition includes an acid functional acrylic copolymer polymerized from a monomer mixture comprising 2 percent to 12 percent of one or more carboxylic acid group containing monomers, percentages based on total weight of the acid functional acrylic copolymer, and 0.2 percent to 2 percent of amorphous silica, percentages based on total weight of the crosslinkable component. The crosslinking component can includes polyisocyanates, melamines, or a combination thereof.

US Patent:

20040149960, Aug 5, 2004

Filed:

Feb 4, 2003

Appl. No.:

10/357828

Inventors:

Henry Tremper - Clayton NJ, US
Henry Tronco - Springfield PA, US
Valentina Gordin - Princeton NJ, US

International Classification:

B05D003/02
H05C001/00

US Classification:

252/500000, 427/458000, 427/384000

Abstract:

The present invention provides electrically conductive and flexible primer compositions that harden to form conductive materials under room temperature or low bake temperature curing conditions. The primer composition contains solvents and 40-75% by weight of film forming binder and pigments in an overall pigment to binder weight ratio of about 1:100 to 100:100; wherein the binder contains (A) a flexible hydroxy containing polyester resin and (B) an organic polyisocyanate crosslinking agent; and wherein the pigments include electrically conductive pigments in a pigment to binder weight ratio of about 1:100 to 130:100 and the electrically conductive pigments consists essentially of a combination of graphite and conductive carbon black pigments in a graphite to carbon black weight ratio of about 120:1 to 1:1, and the composition forms a hard, flexible coating having a surface conductivity of at least 100 Ransburg units when cured at room temperature or low bake conditions. The coating composition can be used on metal or plastic substrates to render the substrate conductive.

US Patent:

20040115357, Jun 17, 2004

Filed:

Oct 29, 2003

Appl. No.:

10/696093

Inventors:

James Matthews - Berwyn PA, US
Henry Tronco - Springfield PA, US

International Classification:

B05D003/02
B05D001/36

US Classification:

427/407100, 427/385500

Abstract:

The present invention relates to a process for producing a multi-coat system on various substrates, particularly automotive bodies. A crosslinkable component of the composition includes an acid functional acrylic copolymer polymerized from a monomer mixture comprising 2 percent to 12 percent of one or more carboxylic acid group containing monomers, percentages based on total weight of the acid functional acrylic copolymer, and 0.2 percent to 2 percent of amorphous silica, percentages based on total weight of the crosslinkable component. The crosslinking component can includes polyisocyanates, melamines, or a combination thereof.