Method of making glittering cube-corner retroreflective sheeting
US5770124A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 30, 1996 |
| Grant date | Jun 23, 1998 |
| Priority date | — |
| Expiry date | Apr 30, 2016 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA41D31/325
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A method of making a glittering cube-corner sheeting, which method includes: (a) providing a first retroreflective sheeting that includes an array of cube-corner elements arranged in a repeating pattern; and (b) exposing the first retroreflective sheeting to heat, pressure, or a combination thereof to produce a second retroreflective sheeting that comprises an array of cube-corner elements that are randomly tilted; or which method may comprise: (a) providing a mold that has a structured surface that includes a multiplicity of cube-comer elements, the cube-corner elements each including a base plane and three faces, the cube-corner elements being arranged such that the base planes do not reside in the same plane when the sheeting is laid flat; and (b) forming a cube-corner sheeting from the mold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.