Method of making and using retroreflective fibers

• US 20090025872A1
• Filed: 07/26/2007
• Published: 01/29/2009
• Est. Priority Date: 07/26/2007
• Status: Abandoned Application

• Current Assignee: Garrett L. Nilsen, Gus Bernard, Robert B. Nilsen
• Original Assignee: Garrett L. Nilsen, Gus Bernard, Robert B. Nilsen
• Inventors: Bernard, Gus, Nilsen, Garrett L., Nilsen, Robert B.
• Application Number:
  US11/878,811
• Publication Number:
  US 20090025872A1
• Time in Patent Office: Days
• US Class Current: 156/278
• CPC Class Codes: B29C 45/0013 using fillers dispersed in the moulding material, e.g. metal particles
• CPC Class Codes: B29C 48/05 Filamentary, e.g. strands
• CPC Class Codes: B29C 48/08 flexible, e.g. films
• CPC Class Codes: B29C 48/154 Coating solid articles, i.e. non-hollow articles
• CPC Class Codes: B29D 11/00605 Production of reflex reflectors
• CPC Class Codes: B29K 2075/00 Use of PU, i.e. polyureas or polyurethanes or derivatives thereof, as moulding material
• CPC Class Codes: D01D 5/426 by cutting films
• CPC Class Codes: G02B 5/124 plural reflecting elements forming part of a unitary plate or sheet

Abstract

A method of making and using retroreflective fibers and especially to the making of retroreflective fibers from finely cut strips from a thin sheet of material having a corner cube array formed on one side thereof. Other layers of materials including a second thin sheet of material having a corner cube array may be attached to the first thin sheet of retroreflective material. The thin strips may be further chopped into shorter strips and added to coating compounds, such as paint.

Claims

1. A method of making retroreflective fibers comprising:

selecting a sheet of retroreflective material having at least one side thereof forming a corner cube array;

laminating the selected sheet of retroreflective material to a polymer sheet of material;

applying a coating over said retroreflective material; and

cutting said sheet of retroreflective material into a retroreflective thread;

whereby retroreflective fibers are formed for use to make retroreflective materials.

2. The method of making retroreflective fibers in accordance with claim 1 including the step of chopping said retroreflective thread into retroreflective fibers.

3. The method of making retroreflective fibers in accordance with claim 1 including laminating the corner cube side of said sheet of retroreflective material to a transparent sheet of material.

4. The method of making retroreflective fibers in accordance with claim 1 including the step of metalizing the corner cube side of said sheet of retroreflective material.

5. The method of making retroreflective fibers in accordance with claim 1 including the step of laminating said retroreflective sheet to a transparent polymer sheet.

6. The method of making retroreflective fibers in accordance with claim 1 including the step of applying a topcoat to said sheet of retroreflective material.

7. The method of making retroreflective fibers in accordance with claim 1 including the step of laminating two retroreflective sheets together.

8. The method of making retroreflective fibers in accordance with claim 7 including the step of laminating two retroreflective sheets together with adhesive.

9. The method of making and using retroreflective fibers in accordance with claim 1 including the step of weaving said said retroreflective thread to form a retroreflective fabric.

10. The method of making and using retroreflective fibers in accordance with claim 2 including the step of feeding said retroreflective fibers into an injection molding machine to form a retroreflective polymer.

11. The method of making and using retroreflective fibers in accordance with claim 2 including the step of mixing said retroreflective fibers with a coating material.

12. The method of making and using retroreflective fibers in accordance with claim 2 including the step of mixing said retroreflective fibers with a paint.

13. The method of making and using retroreflective fibers in accordance with claim 2 including the step of incorporating said retroreflective fibers into a polymer film.

14. The method of making and using retroreflective fibers in accordance with claim 2 including the step of feeding said retroreflective fibers or retroreflective thread through a fiberglass gun.

15. A method of making a retroreflective coating comprising:

selecting a sheet of retroreflective material having at least one side thereof forming a corner cube array;

said sheet of retroreflective material being laminating to a polymer sheet of material and cut into a retroreflective thread; and

incorporating said retroreflective thread into a polymer material to make a retroreflective material.

16. A method of making a retroreflective coating in accordance with claim 15 including the step of chopping said retroreflective thread into retroreflective fibers for incorporating into a polymer material to make a retroreflective material.

17. A method of making a retroreflective coating in accordance with claim 16 including the step of mixing said retroreflective fibers into paint to form a retroreflective paint.

18. A method of making a retroreflective coating in accordance with claim 15 including the step of weaving said retroreflective fibers into a retroreflective fabric.

19. A method of making a retroreflective coating in accordance with claim 16 including the step of feeding said retroreflective fibers into an injection molding machine to form retroreflective polymer.

20. A method of making a retroreflective coating in accordance with claim 16 including the step of incorporating said retroreflective fibers into polymer film.