Method for depositing photoluminescent material

• US 9,598,632 B2
• Filed: 02/05/2015
• Issued: 03/21/2017
• Est. Priority Date: 11/21/2013
• Status: Expired due to Fees

• Current Assignee: Ford Global Technologies, LLC (Ford Motor Company)
• Original Assignee: Ford Global Technologies, LLC (Ford Motor Company)
• Inventors: Dellock, Paul Kenneth, Salter, Stuart C., Gardner, Cornel Lewis, Karmo, Talat, Terjimanian, Arsen
• Primary Examiner(s): VETERE, ROBERT A
• Application Number:
  US14/614,996
• Publication Number:
  US 20150147466A1
• Time in Patent Office: 775 Days
• US Class Current: 1/1
• CPC Class Codes: B60Q 3/68 using ultraviolet light
• CPC Class Codes: C09K 11/00 Luminescent, e.g. electroluminescent, chemiluminescent materials
• CPC Class Codes: C09K 2211/00 Chemical nature of organic luminescent or tenebrescent compounds

Abstract

A method of depositing a photoluminescent material into a surface of the polymeric material is disclosed. The method comprises dissolving the photoluminescent material in water to create a solution. The temperature of the solution is then controlled at a predetermined temperature. The surface is contacted by the solution at the predetermined temperature for a predetermined time, thereby infusing the surface with the photoluminescent material. Following the predetermined time, the solution is removed from the surface by rinsing the surface with water.

Claims

1. A method of depositing a photoluminescent material into a surface of a molded polymeric vehicle component comprising the steps of:

dissolving the photoluminescent material in water to create a solution;

controlling a temperature of the solution at a predetermined temperature;

contacting the surface with the solution, wherein;

the contacting is maintained for a predetermined time thereby infusing the photoluminescent material into a polymeric material of the vehicle component; and

the contacting is stopped after the photoluminescent material is embedded to a depth beneath the surface of the vehicle component; and

rinsing the solution from the surface.

2. The method according to claim 1, wherein contacting the surface with the solution comprises submerging the molded part in the solution.

3. The method according to claim 1, wherein the predetermined temperature is approximately between 25 degrees Celsius to 100 degrees Celsius.

4. The method according to claim 1, wherein the predetermined time is approximately less than one second to approximately 20 minutes.

5. The method according to claim 1, wherein the predetermined time is approximately 30 seconds to 3 minutes.

6. The method according to claim 1, wherein the predetermined time decreases in response to the predetermined temperature being increased.

7. The method according to claim 1, wherein the solution comprises a percentage of photoluminescent material of approximately 0.001% to 15% by weight.

8. The method according to claim 1, wherein the solution comprises a percentage of photoluminescent material of approximately 0.01 to 0.5% by weight.

9. A method for infusing a molded polymeric part with a photoluminescent material comprising:

dissolving the photoluminescent material in a fluid to create a solution;

controlling a temperature of the solution at a predetermined temperature;

submerging a surface of the part in the solution;

embedding the photoluminescent material into the surface for a predetermined time until a concentration of the photoluminescent material reaches a predetermined level at a predetermined depth in the polymeric part;

removing the polymeric part from the solution; and

rinsing the solution from the surface with a rinse fluid.

10. The method according to claim 9, wherein the predetermined time is approximately 30 seconds to 3 minutes.

11. The method according to claim 9, wherein the photoluminescent material corresponds to at least one of a rylene or phosphor luminescent material.

12. The method according to claim 9, wherein the solution comprises a percentage of photoluminescent material of approximately 0.001 to 15% by weight.

13. The method according to claim 9, wherein the solution comprises a percentage of photoluminescent material of approximately 0.01 to 0.5% by weight.

14. The method according to claim 9, wherein the solution further comprises at least one of a surfactant and an emulsifier.

15. The method according to claim 14, wherein the surfactant comprises at least one of an anionic surfactant, an amphoteric surfactant, and a non-ionic surfactant.

16. The method according to claim 14, wherein the surfactant comprises at least one of an unsaturated fatty acid, a polyphenol and a polyalkyl substituted phenol.

17. The method according to claim 9, further comprising contacting the surface of the part with a second solution comprising at least one of a UV stabilizers, an optical brightener, an antistatic agent, a thermal stabilizer, IR absorbers, and antimicrobial agents.

18. A method of depositing a photoluminescent material into a molded polymeric vehicle part comprising the steps of:

dissolving the photoluminescent material in liquid to create a solution;

controlling a temperature of the solution at a predetermined temperature;

submerging the surface in the solution;

infusing the photoluminescent material into the surface for a predetermined time until a concentration of the photoluminescent material reaches a predetermined level at a predetermined depth in the polymeric vehicle part; and

rinsing the solution from the surface with rinse liquid wherein the predetermined time decreases in response to the predetermined temperature being increased.

19. The method according to claim 18, wherein the photoluminescent material corresponds to at least one of a rylene and phosphor luminescent material.