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:
Mar. 08, 2016
Filed:
Dec. 13, 2011
Neelakandan Chandrasekaran, Woodbury, MN (US);
Michael R. Gorman, Lake Elmo, MN (US);
Kristopher K. Biegler, Minneapolis, MN (US);
Timothy P. Pariseau, Forest Lake, MN (US);
Neelakandan Chandrasekaran, Woodbury, MN (US);
Michael R. Gorman, Lake Elmo, MN (US);
Kristopher K. Biegler, Minneapolis, MN (US);
Timothy P. Pariseau, Forest Lake, MN (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
A method of detecting the presence or position of a first component in an article is disclosed. The first component, which has a predefined response to incident light, includes a microporous film of a semi-crystalline polyolefin and a beta-nucleating agent. The method includes irradiating the article with incident light, detecting light received from the irradiated article; and identifying the predefined response of the first component in the light received from the irradiated article to detect the presence or the position of the first component. A method for preparing a mechanical fastening component for use in an article is also disclosed. The method includes stretching a film backing containing beta-spherulites and having upstanding fastening elements to provide a microporous film backing with sufficient porosity to allow it to be detected when subjected to an inspection system comprising a light detector.