Jack C. Allman - Twin Lakes WI Ronald J. Lewarchik - Sleepy Hollow IL Victor J. Scaricamazza - Mount Holly NJ
Assignee:
BASF Corporation - Southfield MI
International Classification:
B05D 112
US Classification:
427186, 427188, 427202, 427428
Abstract:
This invention relates to a method for embedding a multiplicity of discrete masses of material in a resinous coating on a sheet of metal in a coil coating system. The sheet is coated, the masses are embedded in the wet resinous coating, and the coating is dried in a one-pass system. The resinous coating and the embedded masses are preferably resistant to ultra-violet radiation. The wet resinous coating, therefore, is preferably a liquid fluorocarbon resin. The discrete masses comprise pigmented particulate minerals and resins in the form of granules, beads, vesiculated beads, pellets, flakes, platelets, cylinders, coating powders, and coating powder precursor chips. The minerals include glass, quartz, mica, pebbles, and ceramics. The particulate resins include polyesters, acrylics, nylons, polyurethanes, polycarbonates, solid fluorocarbon resins, and solid mixtures of a fluorocarbon resin and an acrylate or methacrylate polymer or copolymer. Sheet metal decorated in such a manner is useful as stock in the manufacture of metal roofing shingles simulating the appearance of traditional asphalt shingles.
Metal Roofing Shingle Stock And Method For Making It
A coil coating system for embedding discrete masses of material in a resinous coating on sheet metal as it is pulled from a dispensing coil through a series of rollers, said system comprising a paint pan, a roller rotating in the pan and picking up said resinous coating composition and transferring it to an applicator roller; thenceforth to the moving sheet metal, an oven, and a sprayer that can heat thermoplastic resin particles to a molten or plastic state and spray the particles to the moving sheet metal.
Non-Blistering Thick Film Coating Compositions And Method For Providing Non-Blistering Thick Film Coatings On Metal Surfaces
Mitchell T. Keck - Crystal Lake IL Ronald J. Lewarchik - Sleepy Hollow IL Jack C. Allman - Twin Lakes WI
Assignee:
Morton International, Inc. - Chicago IL
International Classification:
C08L 2326 C08L 6702 C08L 6128 C08L 3302
US Classification:
428458
Abstract:
A thermosetting, organic solvent-based, primer coating composition for protecting metal surfaces which includes a solvent solution of: (a) a hydroxy-functional polyester resin; (b) a thermosetting acrylic resin; (c) a hydroxy-terminal polybutadiene resin, a hydroxy-terminal epoxidized polybutadiene resin, or mixtures thereof; (d) a blocked isocyanate crosslinker including at least one dimethyl pyrazole blocked isocyanate; (e) an aminoplast crosslinker including at least one melamine-formaldehyde condensate; (f) a catalyst; and, (g) a pigment. The primer exhibits excellent flexibility after curing to allow the primer to be coil coated onto metals as a thicker film and to have the metal subsequently formed without film fracture or loss of adhesion. The primer also has improved solvent release properties during curing to allow volatiles to readily escape therefrom, which facilitates coil coating of the primer onto metals as thicker films that, when cured into thick film hardened surface finishes, do not exhibit the typical blisters, craters, pops, voids and other surface defects. The primer can be cured as well at reduced temperatures which contributes to the reduction in surface defects.
Joseph J. Zupancic - Glen Ellyn IL Jack C. Allman - Twin Lakes WI James V. Lang - Harvard IL
Assignee:
BASF Corporation - Southfield MI
International Classification:
C08L 3304 C08L 3502 C08L 3306
US Classification:
525199
Abstract:
The invention provides thermosetting coating compositions in which acrylic copolymers are used as carriers for fluorocarbon resins. The compositions have a combination of high fluorocarbon content, high solids content, and a low viscosity suitable for coil coating. Thus, the solids are borne in organic solvent systems which permit minimization of the viscosity and a moderate evaporation rate. The solvent system has a. delta. sub. H of from 1. 7 to 2. 6 (calories/cubic centimeter). sup. 1/2 and a. delta. sub. V of from 8 to 9. 5 (calories/cubic centimeter). sup. 1/2 and is exemplified by a mixture of 4 or more of the following solvents: aliphatic ketones having from 4 to 10 carbon atoms, alkyl esters having a total of from 5 to 7 carbon atoms, aromatic acid esters having from 8 to 12 carbon atoms, lactones, and aromatic solvents. The acrylic polymer is comprised of (a) acrylic esters having no additional functionality, (b) acrylic esters having additional functionality by which the acrylic polymer may be cross-linked, and (c) an acryloxyalkyl oxazolidine.
Thermosetting Acrylic Polymers And Coating Compositions Containing Said Acrylic Polymers And Fluorocarbon Resins
Ronald J. Lewarchik - Sleepy Hollow IL Edward J. Holzrichter - Redlands CA Marc L. Smith - Highland CA Jack C. Allman - Riverside CA
Assignee:
Morton Coatings, Inc. - Chicago IL
International Classification:
C08L 2712
US Classification:
525199
Abstract:
The invention provides novel acrylic resins particularly useful for formulating polyvinylidene fluoride/thermosetting acrylic polymer coating compositions. The acrylic polymer is comprised of (a) acrylic acids and acrylic esters having no additional functionality, (b) acrylic acids and acrylic esters having additional functionality by which the acrylic polymer may be cross-linked, and (c) an acryloxyalkyl oxizolidine.