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. 13, 1988
Filed:
Jun. 10, 1986
Akio Takagi, Tokyo, JP;
Hiroyuki Higuchi, Kanagawa, JP;
Yoshihito Ohtake, Tochigi, JP;
Hiroshi Matsunaka, Ibaragi, JP;
The Coca-Cola Company, Atlanta, GA (US);
Abstract
A process and an apparatus for carrying out the process which causes acceleration of photodegradation of polymer substances. The process comprises irradiating a polymer substance with a low wavelength light and then a high wavelength light in an atmosphere with a specified humidity. The apparatus contains an irradiation lamp for irradiating a polymer substance, a rotating mounting plate for supporting the polymer substance, and humidifying means for creating a predetermined humidity for the photodegradation of the polymer substance. The photodegradation process and apparatus are used to precisely determine the useful life of polymer substances.