1. A homogeneous coating composition comprising:
a) at least one vinyl-functional crosslinkable film former;
b) more than 15 weight percent benzotriazole UV absorber; and
c) at least one copolymerizable monomer that solubilizes the benzotriazole.
2. A composition according to claim 1 wherein the film former comprises a di-, tri- or higher functional acrylate or methacrylate.
3. A composition according to claim 1 wherein the film former comprises butanediol diacrylate.
4. A composition according to claim 1 wherein the film former comprises hexanediol diacrylate, butanediol diacrylate, pentaerythritol triacrylate, pentaerythritol tetraacrylate or trimethylolpropane triacrylate.
5. A composition according to claim 1 wherein the film former contains urethane functionality.
6. A composition according to claim 1 wherein the benzotriazole is substituted in the 5-position of the benzo ring by a thio ether, alkyl sulfonyl or phenyl sulfonyl moiety.
7. A composition according to claim 1 wherein the benzotriazole is substituted in the 5-position of the benzo ring by an electron withdrawing group.
8. A composition according to claim 1 wherein the benzotriazole comprises 2-(2-hydroxy-3,5-di-tert-amyl-phenyl)-2H-benzotriazole.
9. A composition according to claim 1 wherein the benzotriazole comprises 2-(2-hydroxy-3-alpha-cumyl-5-tert-octylphenyl)-2H-benzotriazole.
10. A composition according to claim 1 wherein the benzotriazole comprises 5-trifluoromethyl-2-(2-hydroxy-3-alpha-cumyl-5-tert-octylphenyl)-2H-benzotriazole.
11. A composition according to claim 1 wherein the monomer comprises isooctyl acrylate, 2-ethylhexyl acrylate, t-butyl acrylate, glycidyl methacrylate, benzyl methacrylate, isobornyl acrylate, isobornyl methacrylate, t-butylcyclohexyl acrylate, cyclohexyl acrylate, n-octyldecyl acrylate, butanediol diacrylate, 1-adamantyl acrylate, dicyclopentenyl acrylate or n-vinyl caprolactam.
12. A composition according to claim 1 wherein the monomer comprises isobornyl acrylate.
13. A homogeneous coating composition comprising:
(a) at least one vinyl-functional crosslinkable film former;
(b) more than 15 weight percent benzotriazole UV absorber; and
(c) at least one copolymerizable monomer that solubilizes the benzotriazole wherein the monomer comprises t-butylcyclohexyl acrylate.
14. A composition according to claim 1 wherein the film former and monomer are chemically distinct species.
15. A composition according to claim 1 wherein the film former and monomer are the same species.
16. A composition according to claim 1 comprising about 16 to about 35 weight percent benzotriazole based on the total weight of solids in the composition.
17. A composition according to claim 1 comprising about 20 to about 35 weight percent benzothiazole based on the total weight of solids in the composition.
18. A composition according to claim 1 comprising about 21 to about 35 weight percent benzotriazole based on the total weight of solids in the composition.
19. A composition according to claim 1 further comprising submicron inorganic particles.
20. A process for making a UV resistant coating comprising:
a) providing a support;
b) coating at least a portion of the support with a homogenous mixture comprising (i) at least one vinyl-functional crosslinkable film former, (ii) more than 15 weight percent benzotriazole UV absorber; and (iii) at least one copolymerizable monomer that solubilizes the benzotriazole; and
c) polymerizing the coating.
21. A process according to claim 20 wherein the support comprises a polyester, a polycarbonate, an acrylic polymer, a styrenic polymer, a polyolefin, or a cellulosic polymer.
22. A process according to claim 20 wherein the support comprises terephthalate polyester or copolyester, naphthalate polyester or copolyester, polycarbonate of bisphenol A, polymethyl methacrylate, polystyrene, styrene-acrylonitrile copolymer, acrylonitrile-butadiene-styrene copolymer, polyethylene, polypropylene or cellulose triacetate.
23. A process according to claim 20 wherein the support comprises a multilayer optical film.
24. A process according to claim 20 wherein the film former comprises a di-, tri- or higher functional acrylate or methacrylate.
25. A process according to claim 20 wherein the film former comprises hexanediol diacrylate, butanediol diacrylate, pentaerythritol triacrylate, pentaerythritol tetraacrylate or trimethylolpropane triacrylate.
26. A process according to claim 20 wherein the benzotriazole comprises 2-(2-hydroxy-3,5-di-tert-amylphenyl)-2H-benzotriazole, 2-(2-hydroxy-3-alpha-cumyl-5-tert-octylphenyl)-2H-benzotriazole or 5-trifluoromethyl-2-(2-hydroxy-3-alpha-cumyl-5-tert-octylphenyl)-2H-benzotriazole.
27. A process according to claim 20 wherein the monomer comprises isooctyl acrylate, 2-ethylhexyl acrylate, t-butyl acrylate, glycidyl methacrylate, benzyl inethacrylate, isobornyl acrylate, isobornyl methacrylate, t-butylcyclohexyl acrylate, cyclohexyl acrylate, n-octyldecyl acrylate, butanediol diacrylate, 1-adamantyl acrylate, dicyclopentenyl acrylate or n-vinyl caprolactam.
28. A process according to claim 20 wherein the monomer comprises isobornyl acrylate or t-butylcyclohexyl acrylate.
29. A process according to claim 20 wherein the film former and monomer are chemically distinct species.
30. A process according to claim 20 wherein the film former and monomer are the same species.
31. A process according to claim 20 wherein the mixture comprises a photoinitiator and is photopolymerizable.
32. A process according to claim 20 wherein the mixture comprises about 16 to about 35 weight percent benzotriazole and the polymerized coating does not exhibit blooming.
33. A process according to claim 20 wherein the mixture further comprises submicron inorganic particles.
34. An article comprising a support overcoated with a UV resistant coating comprising the polymerized reaction product of a homogenous mixture comprising:
a) at least one vinyl-functional crosslinkable film former;
b) more than 15 weight percent benzotriazole WV absorber; and
c) at least one copolymerizable monomer that solubilizes the benzotriazole.
35. An article according to claim 34 wherein the support comprises polyethylene terephthalate.
36. An article according to claim 34 wherein the support comprises naphthalate polyester or copolyester.
37. Am article according to claim 34 wherein the support comprises a multilayer optical film.
38. An article according to claim 34 wherein the benzotriazole comprises 2-(2-hydroxy-3,5-di-tert-amylphenyl)-2H-benzotriazole, 2-(2-hydroxy-3-alpha-cumyl-5-tert-octylphenyl)-2H-benzotriazole or 5-trifluoromethyl-2-(2-hydroxy-3-alpha-cumyl-5-tert-octylphenyl)-2H-benzotriazole.
39. An article according to claim 34 wherein the monomer comprises isooctyl acrylate, 2-ethylhexyl acrylate, t-butyl acrylate, glycidyl methacrylate, benzyl methacrylate, isobornyl acrylate, isobornyl methacrylate, t-butylcyclohexyl acrylate, cyclohexyl acrylate, n-octyldecyl acrylate, butanediol diacrylate, 1-adamantyl acrylate, dicyclopentenyl acrylate or n-vinyl caprolactam.
40. An article according to claim 34 wherein the monomer comprises isobornyl acrylate or t-butylcyclohexyl acrylate.
41. An article according to claim 34 wherein the film former and monomer are chemically distinct species.
42. An article according to claim 34 wherein the film former and monomer are the same species.
43. An article according to claim 34 wherein the mixture comprises about 16 to about 35 weight percent benzotriazole and the coating does not exhibit blooming.
44. An article according to claim 34 wherein the mixture further comprises submicron inorganic particles.
45. An article according to claim 34 wherein the coating can withstand an exposure of at least 18,700 kJm2 at 340 nm before the b* value obtained using the CIE L*a*b* color space increases by 4 or more, or before the onset of significant cracking, peeling, delamination or haze, when evaluated using the weathering cycle described in ASTM G155 and a D65 light source operated in the reflected mode.
46. An article according to claim 34 comprising a light tube, lamp reflector, bulb cavity reflector, solar concentrator or solar collector.
47. An article according to claim 34 comprising a mirror or imitation chrome.
48. An article according to claim 34 comprising vehicular glazing, architectural glazing or a greenhouse panel.
49. An article according to claim 34 comprising a sensor, solar cell, sign graphic arts film, point of purchase display, decorative film, cell-phone body, apparel or home appliance.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A method comprising:
maintaining a predetermined velocity equation within a non-volatile storage medium of a printing device, said non-volatile storage medium being readable by a processor of said printing device, and said predetermined velocity equation outputting different sheet exit velocities for different media properties of different sheets of media;
determining media properties of a sheet of media exiting said printing device;
applying said media properties of said sheet of media to said predetermined velocity equation to calculate a corresponding sheet exit velocity for said sheet of media, using said processor; and
controlling sheet movement elements within a media path of said printing device using said processor to cause said sheet of media to exit said printing device at said sheet exit velocity.
2. The method according to claim 1, further comprising empirically testing sheets having different process lengths, different cross-process widths, and different weights at said different sheet exit velocities to establish acceptable sheet exit velocities that cause said sheets to conform to a predetermined stack quality factor.
3. The method according to claim 2, further comprising establishing said predetermined velocity equation by correlating different combinations of different process lengths, different cross-process widths, and different weights to a corresponding acceptable sheet exit velocity that conforms to said predetermined stack quality factor.
4. The method according to claim 3, said corresponding acceptable sheet exit velocity for a given combination of process length, cross-process width, and weight comprising the highest sheet exit velocity that conforms to said predetermined stack quality factor for said given combination of process length, cross-process width, and weight.
5. The method according to claim 1, said sheet movement elements within said media path comprising at least one roller nip.
6. A method comprising:
maintaining a predetermined velocity equation within a non-volatile storage medium of a printing device, said non-volatile storage medium being readable by a processor of said printing device, and said predetermined velocity equation outputting different sheet exit velocities for different process lengths, different cross-process widths, and different weights of different sheets of media;
determining a process length, a cross-process width, and a weight of a sheet of media exiting said printing device using at least one sensor or at least one input of said printing device;
if any of said process length, said cross-process width, and said weight are different from an immediately previous sheet, performing a sheet output operation change process; and
if said immediately previous sheet does not exist, performing said sheet output operation change process,
said sheet output operation change process being performed after said sensing and before said sheet of media exits said printing device, and
said sheet output operation change process comprising:
applying said process length, said cross-process width, and said weight to said predetermined velocity equation to calculate a corresponding sheet exit velocity for said sheet of media, using said processor; and
controlling sheet movement elements within a media path of said printing device using said processor to cause said sheet of media to exit said printing device at said sheet exit velocity.
7. The method according to claim 6, further comprising empirically testing sheets having said different process lengths, said different cross-process widths, and said different weights at said different sheet exit velocities to establish acceptable sheet exit velocities that cause said sheets to conform to a predetermined stack quality factor.
8. The method according to claim 7, further comprising establishing said predetermined velocity equation by correlating different combinations of different process lengths, different cross-process widths, and different weights to a corresponding acceptable sheet exit velocity that conforms to said predetermined stack quality factor.
9. The method according to claim 8, said corresponding acceptable sheet exit velocity for a given combination of process length, cross-process width, and weight comprising the highest sheet exit velocity that conforms to said predetermined stack quality factor for said given combination of process length, cross-process width, and weight.
10. The method according to claim 6, said sheet movement elements within said media path comprising at least one roller nip, and said sensor comprising at least one edge sensor positioned within one processing direction sheet length of said roller nip.
11. A printing device comprising:
a processor;
a non-volatile storage medium operatively connected to said processor, said non-volatile storage medium maintaining a predetermined velocity equation, said non-volatile storage medium being readable by said processor, and said predetermined velocity equation outputting different sheet exit velocities for different process lengths, different cross-process widths, and different weights of different sheets of media;
at least one sensor operatively connected to said processor, said sensor sensing a process length and a cross-process width of a sheet of media exiting said printing device;
at least one user interface operatively connected to said processor, said user interface determining a weight of said sheet of media exiting said printing device; and
a media path operatively connected to said processor, said media path comprising sheet movement elements,
said processor applying said process length, said cross-process width, and said weight to said predetermined velocity equation to calculate a corresponding sheet exit velocity for said sheet of media, and
said processor controlling said sheet movement elements within said media path of said printing device to cause said sheet of media to exit said printing device at said sheet exit velocity.
12. The printing device according to claim 11, said different sheet exit velocities comprising acceptable sheet exit velocities that cause said sheets to conform to a predetermined stack quality factor.
13. The printing device according to claim 12, said predetermined velocity equation correlating different combinations of different process lengths, different cross-process widths, and different weights to a corresponding acceptable sheet exit velocity that conforms to said predetermined stack quality factor.
14. The printing device according to claim 13, said corresponding acceptable sheet exit velocity for a given combination of process length, cross-process width, and weight comprising the highest sheet exit velocity that conforms to said predetermined stack quality factor for said given combination of process length, cross-process width, and weight.
15. The printing device according to claim 11, said sheet movement elements within said media path comprising at least one roller nip, and said sensor comprising at least one edge sensor positioned within one processing direction sheet length of said roller nip.
16. A non-transitory computer readable storage medium readable by a computerized device, said non-transitory computer readable storage medium storing instructions executable by said computerized device to perform a method comprising:
maintaining a predetermined velocity equation, said predetermined velocity equation outputting different sheet exit velocities for different process lengths, different cross-process widths, and different weights of different sheets of media exiting a printing device;
determining a process length, a cross-process width, and a weight of a sheet of media exiting said printing device;
applying said process length, said cross-process width, and said weight to said predetermined velocity equation to calculate a corresponding sheet exit velocity for said sheet of media; and
causing said sheet of media to exit said printing device at said sheet exit velocity.
17. The non-transitory computer readable storage medium according to claim 16, said method further comprising empirically testing sheets having said different process lengths, said different cross-process widths, and said different weights at said different sheet exit velocities to establish acceptable sheet exit velocities that cause said sheets to conform to a predetermined stack quality factor.
18. The non-transitory computer readable storage medium according to claim 17, said method further comprising establishing said predetermined velocity equation by correlating different combinations of different process lengths, different cross-process widths, and different weights to a corresponding acceptable sheet exit velocity that conforms to said predetermined stack quality factor.
19. The non-transitory computer readable storage medium according to claim 18, said corresponding acceptable sheet exit velocity for a given combination of process length, cross-process width, and weight comprising the highest sheet exit velocity that conforms to said predetermined stack quality factor for said given combination of process length, cross-process width, and weight.
20. The method according to claim 16, said determining of said process length, said cross-process width, and said weight being performed using an interface of said printing device.