Marking based on chiral liquid crystal polymers
US8426011B2 · kind B2 · utility
3Cited by
2References
36Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 19, 2010 |
| Grant date | Apr 23, 2013 |
| Priority date | — |
| Expiry date | May 8, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24835
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A liquid crystal polymer marking is obtainable by a process that comprises applying a chiral liquid crystal precursor composition onto a substrate, heating the composition to a bring same to a chiral liquid crystal state, locally applying at least one modifying agent to modify the chiral liquid crystal state, and curing and/or polymerization the resultant product. This abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.