Co-topo-polymeric compositions, devices and systems for controlling threshold and delay activation sensitivities

• US 8,617,900 B2
• Filed: 04/27/2012
• Issued: 12/31/2013
• Est. Priority Date: 07/18/2008
• Status: Active Grant

• Current Assignee: Segan Industries Inc.
• Original Assignee: Segan Industries Inc.
• Inventors: Ribi, Hans O.
• Primary Examiner(s): COLE, MONIQUE T
• Application Number:
  US13/458,905
• Publication Number:
  US 20120266806A1
• Time in Patent Office: 613 Days
• Field of Search: 436/166, 252/299.01, 514/772.4, 422/400, 422/420
• US Class Current: 436/166
• CPC Class Codes: C08F 238/02 Acetylene
• CPC Class Codes: C09B 57/10 Metal complexes of organic compounds not being dyes in uncomplexed form
• CPC Class Codes: C09B 67/0013 with polymeric coatings
• CPC Class Codes: C09K 19/542 Macromolecular compounds
• CPC Class Codes: G01D 7/005 Indication of measured value by colour change
• CPC Class Codes: G01K 1/02 Means for indicating or recording specially adapted for thermometers
• CPC Class Codes: G01K 11/12 using changes in colour, translucency or reflectance
• CPC Class Codes: G01K 3/04 in respect of time
• CPC Class Codes: G01N 21/78 producing a change of colour

Abstract

Co-topo-polymeric indicator compositions and methods for making and using the same are provided. Indicator compositions of the invention include a polymer and undergo a color change, which may be reversible or irreversible, in response to an applied stimulus, e.g., temperature. Aspects of methods of producing the compositions include setting a fluid co-topo-polymeric precursor composition into a solid product and then subjecting the solid product (either immediately or after a delay period) to polymerizing conditions to produce the desired indicator composition. Also provided are indicator devices that include the indicator compositions of the invention. The compositions of the invention find use in a variety of different applications.

Claims

1. A co-topo-polymeric precursor composition comprising two or more different co-crystallized monomers.

2. The co-topo-polymeric precursor composition according to claim 1, wherein said different monomers are analogs of each other.

3. The co-topo-polymeric precursor composition according to claim 1, wherein said different monomers are diacetylenic monomers.

4. The co-topo-polymeric precursor composition according to claim 3, wherein said two or more diacetylene monomer analogs differ from each other in monomer chain length, head-group structure, bond positioning, appendages, chirality, related features, and/or combinations thereof.

5. The co-topo-polymeric precursor composition according to claim 2, wherein each of said analogs is independently polymerizable.

7. The co-topo-polymeric precursor composition according to claim 1, wherein said composition further comprises a thermochromic dye.

8. The co-topo-polymeric precursor composition according to claim 1, wherein said composition further comprises a cholesteric liquid crystal.

9. The co-topo-polymeric precursor composition according to claim 1, wherein said composition further comprises an oil.

10. The co-topo-polymeric precursor composition according to claim 1, wherein said composition further comprises a luminescent or fluorescent pigment.

11. The co-topo-polymeric precursor composition according to claim 1, wherein one or more components of said composition are encapsulated.

12. The co-topo-polymeric precursor composition according to claim 1, wherein said composition further comprises a nucleator.

13. A co-topo-polymeric indicator device comprising a co-topo-polymeric indicator composition produced from a co-topo-polymeric precursor composition according to claim 1.

14. The indicator device according to claim 13, wherein said device comprises a co-topo-polymeric indicator composition on a surface of a solid support.

15. The indicator device according to claim 13, wherein said device comprises two or more distinct co-topo-polymeric indicator compositions on a surface of a solid support.

16. The indicator device according to claim 15, wherein said two or more compositions are responsive to different stimuli.

17. The indicator device according to claim 13, wherein said device further comprises a non-co-topo-polymeric sensor.

18. The indicator device according to claim 13, wherein said indicator device changes color in response to a stimulus.

19. The indicator device according to claim 18, wherein said stimulus is temperature.

20. The indicator device according to claim 13, wherein said device comprises said composition in a machine readable format.

21. The indicator device according to claim 20, wherein said format is a barcode.

22. A method of detecting the occurrence of a stimulus, said method comprising:

providing an indicator device according to claim 13; and

assessing said device for the occurrence of a color change to determine the occurrence of said stimulus.

6. A co-topo-polymeric precursor composition comprising two or more different co-crystallized monomers and an effector compound.