What is claimed is:
1. A lamp reflector, comprising:
a reflector body formed from glass-reinforced unsaturated polyester and having an area on which to form a reflective coating and at least one aperture defined in said area for receiving a lamp bulb;
a UV-cured basecoat adhered to said area comprising an acrylated or methacrylated polyester urethane; and
a metal film adhered to said basecoat so as to form a reflector surface.
2. The lamp reflector of claim 1 and also including a topcoat over said metal film.
3. The lamp reflector of claim 2 wherein said reflector surface does not blister, crack or haze when subjected to 350 F. for 2 hours.
4. The lamp reflector of claim 2 wherein said reflector surface does not blister, crack or haze when subjected to 400 F. for 2 hours.
5. The lamp reflector of claim 2 wherein said reflector surface does not blister, crack or haze when subjected to 450 F. for 24 hours.
6. The lamp reflector of claim 1, wherein the UV-cured basecoat comprises about 10% to about 20% of an acrylated or methacrylated polyester urethane having a number average molecular weight of about 500 to about 2000, about 40% to about 60% of trifunctional acrylate, about 5% to about 15% of an epoxy diacrylate, and about 3% to about 15% of a photoinitiator.
7. The lamp reflector of claim 1, wherein the UV-cured basecoat comprises about 25% to about 45% of an acrylated or methacrylated polyester urethane having a number average molecular weight of about 500 to about 2000, about 45% to about 65% of a triacrylate, and about 3% to about 10% of a photoinitiator.
8. The lamp reflector of claim 1, wherein said UV-cured basecoat comprises about 15% to about 30% of an acrylated or methacrylated polyester urethane having a number average molecular weight of about 500 to about 2000, about 1% to about 10% of an acrylated or methacrylated polyether urethane having a number average molecular weight of about 1200 to about 2600, about 40% to about 60% of trifunctional acrylate, about 5% to about 15% of an epoxy diacrylate, and about 3% to about 15% of a photoinitiator.
9. The lamp reflector of claim 1, wherein said UV-cured basecoat comprises about 70% to about 90% of an acrylated or methacrylated polyester urethane having a number average molecular weight of about 500 to about 2000, about 3% to about 15% of a photoinitiator, and about 3% to about 15% of a second acrylated or methacrylated urethane having a molecular weight greater than that of said acrylated or methacrylated polyester urethane.
10. The lamp reflector of claim 1, wherein said reflector surface comprises a plurality of flutes or facets.
11. The lamp reflector of claim 10, wherein said reflector surface comprises a plurality of flutes.
12. An ultraviolet curable coating composition, comprising a solvent, and, exclusive of the solvent, about 10% to about 20% of an acrylated or methacrylated polyester urethane having a number average molecular weight of about 500 to about 2000, about 40% to about 60% of trifunctional acrylate, about 5% to about 15% of an epoxy diacrylate, and about 3% to about 15% of a photoinitiator.
13. The composition of claim 12 wherein said solvent constitutes about 75% to about 45% of the composition and, taken together, the acrylated or methacrylated polyester urethane, trifunctional acrylate, epoxy diacrylate and photoinitiator constitute about 25% to about 55% of the composition.
14. An ultraviolet curable coating composition suitable for forming a basecoat on a metallized plastic molded article, comprising a solvent and, exclusive of the solvent, about 25% to about 45% of an acrylated or methacrylated polyester urethane having a number average molecular weight of about 500 to about 2000, about 45% to about 65% of a trifunctional acrylate, and about 3% to about 15% of a photoinitiator.
15. The composition of claim 14 wherein said solvent constitutes about 75% to about 45% of the composition and, taken together, the acrylated or methacrylated polyester urethane, trifunctional acrylate, and photoinitiator constitute about 25% to about 55% of the composition.
16. An ultraviolet curable coating composition suitable for forming a basecoat on a metallized plastic molded article, comprising a solvent and, exclusive of the solvent, about 15% to about 30% of an acrylated or methacrylated polyester urethane having a number average molecular weight of about 500 to about 2000, about 1% to about 15% of an acrylated or methacrylated polyether urethane having a number average molecular weight of about 1200 to about 2600, about 40% to about 60% of trifunctional acrylate, about 5% to about 15% of an epoxy diacrylate, and about 3% to about 15% of a photoinitiator.
17. The composition of claim 16 wherein said solvent constitutes about 75% to about 45% of the composition and, taken together, the acrylated or methacrylated polyester urethane, acrylated or methacrylated polyether urethane, trifunctional acrylate, epoxy diacrylate, and photoinitiator constitute about 25% to about 55% of the composition.
18. An ultraviolet curable coating composition suitable for forming a basecoat on a metallized plastic molded article, comprising a solvent, and, exclusive of the solvent, about 70% to about 90% of an acrylated or methacrylated polyester urethane having a number average molecular weight of about 500 to about 2000, about 3% to about 15% of a photoinitiator, and about 3% to about 15% of a second acrylated or methacrylated urethane having a molecular weight greater than that of the acrylated or methacrylated polyester urethane.
19. The composition of claim 18 wherein said solvent constitutes about 75% to about 45% of the composition and, taken together, the acrylated or methacrylated polyester urethane, second acrylated or methacrylated urethane and photoinitiator constitute about 25% to about 55% of the composition.
20. A metallized molded plastic article, comprising:
a molded plastic substrate;
a UV-cured basecoat comprising an acrylated or methacrylated polyester urethane adhered to said substrate;
a metal film adhered to said basecoat so as to form a reflector surface; and
a topcoat over said metal film;
wherein said reflector surface does not blister, crack or haze when subjected to 350 F. for 2 hours.
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 pipe handling apparatus for assembling and dismantling pipe strings used in wells, the apparatus comprising:
a) a main arbor arranged for attachment to an overhead support;
b) a main body situated on said main arbor for axial movement thereon, said mail arbor and main body defining an assembled length;
c) an active arbor supported by said main body, extending therefrom, arranged for axial movement relative thereto, and rotationally connected to said main arbor;
d) a first fluid powered hydraulic cylinder arranged to vary the assembled length of said main arbor and said main body in response to fluid power selectively supplied by a separate source;
e) a second fluid powered hydraulic cylinder arranged to adjust the assembled length of said main body and said active arbor in response to fluid power selectively supplied by a separate source;
f) a wedge-lock pipe gripper situated on said active arbor for gripping pipe by contact with said pipe’s inner surface when said assembled length of said main body and said active arbor is selectively adjusted; and
g) fluid conducting galleries, at least partly in said main body, arranged to conduct fluid to enable said separate source of fluid power to selectively actuate said first and said second fluid powered hydraulic cylinders.
2. The apparatus according to claim 1 wherein said fluid conducting galleries, at least in part, are in a swivel bearingly and sealingly mounted on said main body, to allow said main body to rotate relative thereto to enable a stationary said separate source of fluid power to selectively control said hydraulic cylinders.
3. The apparatus according to claim 1 wherein said attachment to an overhead support is accomplished by a tool joint on said main arbor.
4. The apparatus according to claim 1 wherein said main body is free to rotate relative to said main arbor.
5. The apparatus of claim 1, further comprising least one accumulator arranged to exchange fluid flow surges with galleries that supply fluid to move said first hydraulic cylinder.
6. The apparatus of claim 1, further comprising at least one accumulator arranged to exchange fluid flow surges with galleries that supply fluid to move said second hydraulic cylinder.
7. A pipe handling apparatus for assembling and dismantling pipe strings being installed in or removed from wells, the apparatus comprising:
a) a main arbor and a main body having a telescoping relationship, said main arbor extending from said main body and having a connector for attachment to an overhead support;
b) an active arbor telescopingly received in said main body, and extending some variable distance therefrom;
c) a first fluid powered hydraulic cylinder, responsive to fluid power manipulation at a separate location, to vary the extension of said main arbor from said main body;
d) a second fluid powered hydraulic cylinder, responsive to fluid power manipulation at a separate location, to vary the extension of said active arbor from said main body;
e) a pipe gripping arrangement on said active arbor for insertion into a pipe bore to grip or release pipe in response to change in the distance said active arbor extends from said main body;
f) a fluid conducting conduit situated to receive drilling fluid from said drilling rig, conduct it along said main and active arbors and to inject said drilling fluid into said pipe bore;
g) a fluid handling gallery arrangement, at least partly situated in said main body, to deliver said fluid power and control to said first and said second motors when said main arbor is rotating and said fluid power manipulation is provided from a stationary installation; and
h) a telescoping relationship between said main arbor and said active arbor comprising mating non-circular surfaces to conduct torque between the two arbors.
8. A pipe handling apparatus according to claim 7 wherein said fluid handling gallery arrangement includes a swivel bearingly and sealedly situated on said main body.
9. A pipe handling apparatus according to claim 7 wherein said pipe gripping arrangement comprises pipe grippers that extend a variable radial distance from said active arbor and change said radial distance when said active arbor is moved relative to said body.
10. A pipe handling apparatus according to claim 7 wherein said non-circular surfaces are splines.
11. A pipe handling apparatus according to claim 7 wherein said main arbor is terminated at an upper end by a tool joint.