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:
Jul. 19, 2011
Filed:
May. 30, 2006
Ronald R. Ambrose, Pittsburgh, PA (US);
Ken W. Niederst, Allison Park, PA (US);
John M. Dudik, Apollo, PA (US);
Mary Ann M. Fuhry, Butler, PA (US);
Ronald R. Ambrose, Pittsburgh, PA (US);
Ken W. Niederst, Allison Park, PA (US);
John M. Dudik, Apollo, PA (US);
Mary Ann M. Fuhry, Butler, PA (US);
PPG Industries Ohio, Inc., Cleveland, OH (US);
Abstract
Polyesters comprising the reaction product of a polyol and a bis-epoxy reacted with a mono- and/or di-phenolic carboxylic acid and/or ester are disclosed. Food cans coated at least in part on the interior with a composition comprising these polyesters are also disclosed. The composition used on the food cans is substantially free of BPA and BPF and substantially free of BADGE and BFDGE. Food cans coated at least in part on the interior with a composition comprising a polyester having a loss of molecular weight of less than 50% in an acidic medium are also disclosed.