The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 09, 1986
Filed:
Mar. 19, 1985
Hoechst Aktiengesellschaft, Frankfurt, DE;
Abstract
Process for bake coating the surfaces of solid materials by applying the required amount of an aqueous dispersion to the surface to be coated, the dispersion containing, as the binder, a coarse-grained, crosslinkable dispersion copolymer formed from olefinically unsaturated monomers and, if appropriate, further customary lacquer formulation constituents, and the crosslinkable dispersion copolymer being composed of a mixture of at least 2 components which can contain identical or different monomer units, of which at least one component A, which is coarse-grained, has a relatively low average molecular weight, and at least one component B, which can be coarse-grained or fine-grained, has a relatively high average high molecular weight, and the ratio by weight of the components A:B being preferably within the range from 99:1 to 1:1, drying the applied amount of dispersion at a temperature below its minimum film-formation temperature and cross-linking the dried coating by baking at a temperature above the glass transition temperature of the copolymer.