Marking substrates
A method of marking a substrate includes contacting the substrate with a composition and contacting the composition with energy sufficient to produce a change in the composition that can be detected optically. In some embodiments, the change produces a white mark.
1. A method of marking a substrate, comprising:
contacting the substrate with a composition comprising a material with a substructure
contacting the composition with energy sufficient to produce a a white mark in the composition,
wherein each of R′, R″, and R′″ is independently selected from the group consisting of hydroxyl, a substituted or unsubstituted (C1-C10) alkyl, a substituted or unsubstituted (C1-C10) hydroxyalkyl, a substituted or unsubstituted (C1-C10) alkyloxy, a substituted or unsubstituted (C1-C10) alkyloxy-(C1-C10) alkyl, a substituted or unsubstituted (C1-C10) alkylamino-(C1-C10) alkyl, a substituted or unsubstituted (C1-C10) aminoalkyl, a substituted or unsubstituted aryl, a substituted or unsubstituted (C1-C10) hydroxyaryl, a substituted or unsubstituted (C1-C10) aryloxy, a substituted or unsubstituted (C1-C10) aminoaryl, a substituted or unsubstituted arylalkyl, a substituted or unsubstituted C1-C10 haloalkyl, a substituted or unsubstituted C2-C6 alkenyl, a substituted or unsubstituted C2-C6 alkynyl, oxo, a substituted or unsubstituted (C1-C10) aminoalkyloxy, a substituted or unsubstituted (C1-C10) aminoalkylcarboxy, a substituted or unsubstituted (C1-C10) aminoalkylaminocarbonyl, a substituted or unsubstituted (C1-C10) aminoalkylcarboxamido, and a substituted or unsubstituted (C1-C4)alkylacetamide(C1-C4)alkyloxy(C1-C4)alkyl.
2. The method of claim 1 , wherein the composition further comprises a crosslinking agent.
3. The method of claim 1 , wherein the composition further comprises a catalyst.
4. The method of claim 1 , wherein the composition further comprises a pigment.
5. The method of claim 1 , wherein the composition further comprises a polyol.
6. The method of claim 1 , wherein the energy is delivered from a laser.
7. The method of claim 1 , further comprising heating the composition.
8. The method of claim 1 , further comprising curing the composition.
9. The method of claim 1 , comprising contacting the composition with energy without previously curing the composition.
10. The method of claim 1 , comprising contacting the composition with energy without previously heating the composition.
11. The method of claim 1 , wherein the white mark has an optical density less than about 0.5.
12. The method of claim 1 , wherein the white mark has an optical density less than about 0.3.
13. A method of marking a substrate, comprising:
contacting the substrate with a composition having a material with a substructure
contacting the composition with energy sufficient to produce a a white mark in the composition,
wherein each of R 1 through R 6 is independently selected from the group consisting of hydrogen, hydroxyl, a substituted or unsubstituted (C1-C10) alkyl, a substituted or unsubstituted (C1-C10) hydroxyalkyl, a substituted or unsubstituted (C1-C10) alkyloxy, a substituted or unsubstituted (C1-C10) alkyloxy-(C1-C10) alkyl, a substituted or unsubstituted (C1-C10) alkylamino-(C1-C10) alkyl, a substituted or unsubstituted (C1-C10) aminoalkyl, a substituted or unsubstituted aryl, a substituted or unsubstituted (C1-C10) hydroxyaryl, a substituted or unsubstituted (C1-C10) aryloxy, a substituted or unsubstituted (C1-C10) aminoaryl, a substituted or unsubstituted arylalkyl, a substituted or unsubstituted C1-C10 haloalkyl, a substituted or unsubstituted C2-C6 alkenyl, a substituted or unsubstituted C2-C6 alkynyl, oxo, a substituted or unsubstituted (C1-C10) aminoalkyloxy, a substituted or unsubstituted (C1-C10) aminoalkylcarboxy, a substituted or unsubstituted (C1-C10) aminoalkylaminocarbonyl, a substituted or unsubstituted (C1-C10) aminoalkylcarboxamido, or a substituted or unsubstituted (C1-C4)alkylacetamide(C1-C4)alkyloxy(C1-C4)alkyl.
14. The method of claim 13 , wherein the composition further comprises a crosslinking agent.
15. The method of claim 13 , wherein the composition further comprises a catalyst.
16. The method of claim 13 , wherein the composition further comprises a pigment.
17. The method of claim 13 , wherein the composition further comprises a polyol.
18. The method of claim 13 , wherein the energy is delivered from a laser.
19. The method of claim 13 , further comprising heating the composition.
20. The method of claim 13 , further comprising curing the composition.
21. The method of claim 13 , comprising contacting the composition with energy without previously curing the composition.
22. The method of claim 13 , comprising contacting the composition with energy without previously heating the composition.
23. The method of claim 13 , wherein the white mark has an optical density less than about 0.5.
24. The method of claim 13 , wherein the white mark has an optical density less than about 0.3.
25. A method of marking a substrate, comprising:
contacting the substrate with a composition comprising a material with a substructure
contacting the composition with energy sufficient to produce a a white mark in the composition,
wherein each of R 1 through R 4 is independently selected from the group consisting of hydroxyl, a substituted or unsubstituted (C1-C10) alkyl, a substituted or unsubstituted (C1-C10) hydroxyalkyl, a substituted or unsubstituted (C1-C10) alkyloxy, a substituted or unsubstituted (C1-C10) alkyloxy-(C1-C10) alkyl, a substituted or unsubstituted (C1-C10) alkylamino-(C1-C10) alkyl, a substituted or unsubstituted (C1-C10) aminoalkyl, a substituted or unsubstituted aryl, a substituted or unsubstituted (C1-C10) hydroxyaryl, a substituted or unsubstituted (C1-C10) aryloxy, a substituted or unsubstituted (C1-C10) aminoaryl, a substituted or unsubstituted arylalkyl, a substituted or unsubstituted C1-C10 haloalkyl, a substituted or unsubstituted C2-C6 alkenyl, a substituted or unsubstituted C2-C6 alkynyl, oxo, a substituted or unsubstituted (C1-C10) aminoalkyloxy, a substituted or unsubstituted (C1-C10) aminoalkylcarboxy, a substituted or unsubstituted (C1-C10) aminoalkylaminocarbonyl, a substituted or unsubstituted (C1-C10) aminoalkylcarboxamido, and a substituted or unsubstituted (C1-C4)alkylacetamide(C1-C4)alkyloxy(C1-C4)alkyl.
26. The method of claim 25 , wherein the composition further comprises a crosslinking agent.
27. The method of claim 25 , wherein the composition further comprises a catalyst.
28. The method of claim 25 , wherein the composition further comprises a pigment.
29. The method of claim 25 , wherein the composition further comprises a polyol.
30. The method of claim 25 , wherein the energy is delivered from a laser.
31. The method of claim 25 , further comprising heating the composition.
32. The method of claim 25 , further comprising curing the composition.
33. The method of claim 25 , comprising contacting the composition with energy without previously curing the composition.
34. The method of claim 25 , comprising contacting the composition with energy without previously heating the composition.
35. The method of claim 25 , wherein the white mark has an optical density less than about 0.5.
36. The method of claim 25 , wherein the white mark has an optical density less than about 0.3.