Title: Polyvinyl chloride plastisols and method of coating metal therewith

Abstract: In a method for coating metal by applying a polyvinyl chloride plastisol to the metal and baking the resultant coating, the improvement wherein the plastisol contains an adhesion improver which is an adduct formed between an isocyanate and a Schiff base (ketimine). Improved polyvinyl chloride plastisols for forming a protective coating on metal, said plastisols containing an adhesion improver which is an adduct formed between an isocyanate and a Schiff base (ketimine).

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Inventors: Burba, Christian (Herbern, DE, US)
Volland, Hans-Guenter (Unna, DE, US)
Esper, Norbert (Bergkamen, DE, US)

Application Number: 895481
Filing Date: 1978-04-11
Publication_date: 1979-04-24
Assignee: Schering Aktiengesellschaft (Berlin and Bergkamen, DE)
Primary Class(es): 427/388.5 427/388.2, 524/296, 524/297, 524/361, 524/569, 564/57, 564/115, 564/278
Other Classes:
US Patent Ref:

3135796	Jun, 1964	Layer et al.	260/566.
3180885	Apr, 1965	Nentwig et al.	260/566.
3309332	Mar, 1967	Skau et al.	260/32.
3324158	Jun, 1967	Cyba et al.	260/566.
3349110	Oct, 1967	Cyba	260/566.
3368974	Feb, 1968	Sparks	260/566.
3398170	Aug, 1968	Cyba	260/566.
3440087	Apr, 1969	Kanal	427/388.
3549407	Dec, 1970	Williamson	427/388.
3674695	Jul, 1972	Wuerstlin et al.	260/566.
3752693	Aug, 1973	Suetsugi et al.	427/388.
3937716	Feb, 1976	Lewis et al.	260/566.

Other Refs:
Primary Examiner: Smith, Ronald H.
Assistant Examiner: Bell, Janyce A.
Attorney: Curtis, Morris & Safford