Conformable polymeric marking sheet
US5082715A · kind A · utility
13Cited by
24References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 28, 1989 |
| Grant date | Jan 21, 1992 |
| Priority date | — |
| Expiry date | Aug 28, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/249986
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Conformable marking sheet comprising a microporous thermoplastic polymer base sheet having a network of interconnected pores. The marking sheet has a low yield stress, making it conformable to rough surfaces. The pores of the base sheet can be filled with a diluent (wax) or they may have the diluent removed, for example by extraction. The construction may further comprise an adhesive on the bottom and a top marking indicium layer comprising a polymeric binder in which is partially embedded a multiplicity of retroflective lens elements, e.g., transparent microspheres.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.