Drying and curing primer coatings

Drying and curing primer coatings

US. Patent 6,290,830. Sept. 18, 2001 A.d Kaylo and N.D. McMurdie, assignors to PPG Industries Ohio, Inc., Cleveland A process for electrodepositi...

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US. Patent

6,290,830.

Sept.

18, 2001

A.d Kaylo and N.D. McMurdie, assignors to PPG Industries Ohio, Inc., Cleveland

A process for electrodepositing a substantially smooth film upon a surface of an electroconductive substrate, the process comprising passing electric current to cause a substantially continuous film to deposit upon the electroconductive substrate, in the absence of a microorganism control agent and which upon the addition of a microorganism control agent mixture of 5-chloro-2-methyl-4-isothiazolin-3-one and 2-methyl-4isothiazolin-3-one electrodeposits on the electroconductive substrate as a comparatively rougher film, and wherein at least a portion of the microorganism control agent mixture of 5-chloro-2methyl-4-isothiazolin-3-one and 2-methyl-4-isothiazolin-3-one is replaced by an aliphatic hydrocarbon material selected from the group consisting of halonitroalkanes, halonitroalkenes, and mixtures thereof resulting in an electrodepositable composition that electrodeposits on the electroconductive substrate as a substantially smooth film. COMPOSITE

COATING HAVING A

POLYCHROMATlC

EFFECT

US. Patent

6,291,018.

VP Dattilo,

assignor

Industries

Ohio Inc., Cleveland

and warm air simultaneously to the basecoating composition for a period of at least 30 seconds; and applying a liquid topcoating composition over the dried basecoat. THIN ELECTROFORMED

COPPER

FOIL PROCESS

FOR TRBATING METAL

VS. Patent JI. Melzer

6,291,020. and R.J

Sept. 18,200l Sujdak,

nors to Betzdearborn

assig-

Inc., Trevose,

Pa.

of forming a A method hydrophilic coating on a metal surface comprising contacting with a substantially silane-free and chromium-free aqueous solution containing at least 1 g/L of a cationic polymer having a charge density of 1.5 to 12.0 and a molecular weight between 1,000 and 600,000, and at least 2 g/L of an alkaline aqueous silicate. COATING OF METAL TUBES AND

US. Patent

6,291,080.

Sept. 18,200l

C.B. Yates and G. Gaskill,

assignors

to Yates Foil USA Inc., Bordentown, NJ

An elongated web of electrodeposited copper foil produced on a rotating cathode drum machine, comprising a central web portion extending along the length of the and two edge portions web; extending along the length of the web, one on either side of the central portion, wherein the central portion has an average thickness and the edge portions each have an average thickness greater than the average thickness of the central portion.

CABLES

US. Patent

6,291,024.

Sept. IS,2001

M. Deroch et al., assignors Atochem

S.A., Puteaux,

to Elf

France

A process for producing a coating on a metal surface, which coating comprises at least one layer of polyurethane, one layer of thermoplastic polymer, and a binder between the polyurethane layer and the thermoplastic polymer layer.

Sept. 18,200l to PPG

A method of forming a composite coating having a polychromatic effect over a substrate comprising applying a first liquid basecoat material over a surface of the substrate; exposing the first liquid basecoat material to air having a temperature from 50 to 9O”F, a relative humidity of 40 to 80%, and an air velocity at the surface of 20 to 150 fpm for 10 to 180 seconds to set the first basecoat material; and applying a second liquid basecoat material over the

90

first basecoat material by at least one bell applicator to form a composite coating, the second basecoat material comprising effect pigment such that the composite coating has a polychromatic effect.

DRYING AND CURING PRIMER COATINGS

US. Patent

6,291,027.

D.d Emch, assignor Industries

Sept. 18,200l to PPG

Ohio Inc., Cleveland

A process for coating a metal substrate comprising applying a liquid organic, polymeric basecoating composition; exposing the basecoating composition to air at 10 to 35°C for a period of at least about 30 seconds to volatilize a portion of volatile material; applying infrared radiation at a power density of about 25 kilowatts per square meter or less

ELECTRODEPOSITED

US. Patent H. Kurabe Mining

6,291,081.

COPPER FOIL

Sept. 18, 2001

et al., assignors

& Smelting

to Mitsui

Co. Ltd., Tokyo

A process for producing an electrodeposited copper foil with its surface prepared comprising subjecting an electrodeposited copper foil having a shiny side and a matte side whose average surface roughness is in the range of 2.5 to 10 mm to a first mechanical polishing so that the average surface roughness of the matte side is in the range of 1.5 to 6 m m, and subjecting the matte side having undergone the first mechanical polishing to at least one further mechanical polishing so that the average surface roughness of the matte side is in the range of 1.0 to 3.0 mm, wherein the matte side having undergone at least the second mechanical polishing in a counter direction of the first polishing direction has is surface

Metal Finishing