Michael J Leonard

US Patent:

6465563, Oct 15, 2002

Filed:

Sep 22, 2000

Appl. No.:

09/667822

Inventors:

Nobuhiro Mori - Westmont IL
Michael Leonard - Lansing IL
Blake Burich - Portage IN
Michael Jackson - LaGrange IL
Robert Kooy - Lansing IL
Manabu Ozawa - Aichi-ken, JP
Toru Tanaka - Nagoyo, JP
Takumi Kitagawa - Owariasahi, JP
Ikuo Asato - Darien IL
Jeff Makarewicz - Allen Park MI

Assignee:

Rohm and Haas Company - Philadelphia PA

International Classification:

C08L 7504

US Classification:

524507, 524457, 524502, 524589

Abstract:

A coating composition particularly suitable for coating poly(phenylene oxide) comprises aqueous medium-dispersed particles of: A) between about 30 and about 35 wt %, of a first styrene-acrylic polymer formed of monomers, between about 50 and about 80 mole % of which monomers are styrene or substituted styrene monomers, between about 2 and about 15 mole percent of which monomers are acrylonitrile, and between about 18 and about 48 mole percent of which are acrylic monomers, said first styrene-acrylic polymer having an acid number of about 15 or below; B) between about 30 and 35 wt %, of an acrylic second polymer formed of monomers, at least about 90 mole percent of which monomers are acrylate monomers, balance other , -ethylenically unsaturated monomers, said acrylic second polymer having an acid number between 0 and about 25; and C) between about 30 and about 40 wt % of an acrylic-urethane hybrid polymer.

US Patent:

20050100674, May 12, 2005

Filed:

Oct 5, 2004

Appl. No.:

10/958889

Inventors:

David Brown - Lonnerstadt, DE
Bernd Laubkermeier - Blomberg, DE
Michael Leonard - Lansing IL, US
James Loies - LaGrange IL, US

International Classification:

B05D003/02

US Classification:

427384000, 427407100, 118696000, 118600000

Abstract:

The present invention provides a method of coating substrates with at least two coatings, wherein the same polymer or resin basecoat is employed in both of the two coatings. The first coating layer also includes an adhesion promoter, thereby eliminating a primer layer. Further, the present invention provides an automated or continuous coating line or coating system including a series of coating booths, each for applying one of a series waterborne or solvent borne coatings, wherein at least the first and second booth each comprises an applicator device and feed or supply controller for feeding a desired amount of the same basecoat formulation to an applicator device, and, further wherein the first booth comprises a feed or supply controller for feeding a desired amount of an adhesion promoter to the at least one applicator device. The coating line or system enables the continuous formation of primeness multi-layer coatings, e.g. basecoat, colorcoat and clearcoat on automotive plastic substrates, from a single paint composition, mixing in color or adhesion components as needed in each booth.