Method of detecting a component of an article and method of preparing a component for detection
US9278471B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 13, 2011 |
| Grant date | Mar 8, 2016 |
| Priority date | — |
| Expiry date | Jan 29, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C2948/92447
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.