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:
Jun. 26, 1990
Filed:
May. 08, 1989
Applicant:
Inventors:
Eleanor A Wasson, Hanworth, GB;
John W Nicholson, Hampton, GB;
Assignee:
National Research Development Corporation, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B05D / ; B27N / ;
U.S. Cl.
CPC ...
428 358 ; 4273884 ; 428461 ;
Abstract
An aluminium or tinned-steel can for carbonated beverage is protected by a low-temperature curing lacquer. The lacquer is applied as an aqueous coating formulation of ethylene maleic acid copolymer (containing KOH to promote decarboxylation) plus some poly(acrylic acid) to promote coherent-film-forming ability plus a diol cross-linking agent to reduce the water-sensitivity. The coated substrate is heat-cured at the relatively low temperature of 200.degree. C. for 10 minutes.