Coating processes – With post-treatment of coating or coating material – Heating or drying
Reexamination Certificate
2005-05-17
2005-05-17
Cameron, Erma (Department: 1762)
Coating processes
With post-treatment of coating or coating material
Heating or drying
Reexamination Certificate
active
06893683
ABSTRACT:
The invention comprises a process for the preparation of a coating, adhesive, film or sheet. In this process a mixture of a polyisocyanate functional, a polyepoxide functional, a polyanhydride functional or a polyketone functional compound or polymer and a compound containing reactive hydrogen, in which the compound containing reactive hydrogen is used in a material which is non-reactive towards the compound containing reactive hydrogen which mixture is not or low reactive at ambient conditions and high reactive under selected conditions, is applied onto a substrate at ambient temperature, followed by reacting the above compounds at elevated temperatures. At ambient temperature said compound containing reactive hydrogen is a solid material, a powder, a granule, a flake or grind or a mixture thereof which is preferably ground. The invention comprises further the coating mixtures to be used in the process and the coatings, coated substrates, adhesives, films, sheets, impregnated substrates, synthetic leathers, inmould coatings, coated leathers, coated polyvinylchlorides, coated non-wovens, coated coagulated polyurethane substrates, breathable coated substrates, obtained by applying the process.
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patent: 3014009 (1961-12-01), Levine
patent: 4552913 (1985-11-01), Wolfe et al.
patent: 4912152 (1990-03-01), Nejigaki et al.
patent: 0171015 (1986-12-01), None
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patent: 09-067466 (1997-03-01), None
patent: WO 9719124 (1997-05-01), None
Hesselmans Laurentius Cornelius Josephus
Spek Dirk Pieter
Cameron Erma
Peacock Myers & Adams PC
Stahl International B.V.
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