1. A process for preparing a light transmissive electromagnetic shielding material comprising;
coating a transparent substrate with a pretreatment agent for electroless plating comprising a noble metal compound and a mixture of silane coupling agent and azole compound or a reaction product thereof to form a coated layer and drying the coated layer to provide a pretreatment layer on the transparent substrate,
forming a plating protective layer in the dot pattern on the pretreatment layer, and
subjecting the exposing part of the pretreatment layer having no plating protective layer to electroless plating to form a metal conductive layer in the mesh pattern.
2. A process as defined in claim 1, wherein the silane coupling agent is an epoxy-containing silane compound.
3. A process as defined in claim 1, wherein the silane coupling agent is \u03b3-glycidoxypropyltrialkoxysilane.
4. A process as defined in claim 1, wherein the azole compound is imidazole.
5. A process as defined in claim 1, wherein the noble metal compound is a compound containing at least one metal atom selected from the group consisting of palladium, silver, platinum and gold.
6. A process as defined in claim 1, wherein the pretreatment agent for electroless plating further comprises a synthetic resin.
7. A process as deed in claim 6, wherein the synthetic resin has glass transition temperature of from 31 20 to 50\xb0 C.
8. A process as defined in claim 6, wherein the synthetic resin is to at least one selected from the group consisting of polyester resin, polyurethane resin, acrylic resin and polyvinyl acetate resin.
9. A process as defined in claim 1, wherein the pretreatment agent for electroless plating further comprising a polyfunctional isocyanate compound having two or more isocyanate groups:
10. A process as defined in claim 1, which further comprising;
subjecting a side of the transparent substrate to be formed the pretreatment layer to an easy adhesion imparting treatment before the step for forming the pretreatment layer.
11. A process as defined in claim 10, wherein the easy adhesion imparting treatment is carried out by forming an easy adhesion layer comprising at least one oxide of metal selected from the group consisting of Si, Ti, Sn, Al and Zn on the transparent substrate.
12. A process as defined in claim 11, wherein the easy adhesion layer is produced by a vapor deposition method.
13. A process as defined in claim 12, wherein the vapor deposition method is a physical vapor deposition method, a vacuum deposition method, a sputtering method, an ion. plating method, a chemical vapor deposition or a plasma enhanced chemical vapor deposition
14. A process as defined in claim 12, wherein the vapor deposition method is a vacuum deposition method or a sputtering method.
15. A process as defined in claim 10, wherein the easy adhesion imparting treatment is carried out by coating the transparent substrate with a solution comprising a synthetic resin and drying it to form an easy adhesion layer.
16. A process as defined in claim 15, wherein the synthetic resin has glass transition temperature of in the range of \u221220 to 50\xb0 C.
17. A process as defined in claim 15, wherein the synthetic resin is selected from the group consisting of polyester resin, polyurethane resin, acrylic resin and vinyl acetate resin.
18. A process as defined in claim 15, wherein a solution comprising the synthetic resin farther comprises a polyfunctional isocyante compound having two or more isocyanate groups.
19. A process as defined in claim 15, wherein the easy adhesion layer has the thickness in the range of 0.05 to 5 \u03bcm.
20. A process as defined in claim 10, wherein the easy adhesion imparting treatment is carried out by subjecting the transparent substrate to a corona treatment or a plasma treatment.
21. A process as defined in claim 1, wherein the drying is carried out at a temperature of 80 to 160\xb0 C. at the step for forming the pretreatment layer on the transparent substrate.
22. A process as defined in claim 1, wherein the plating protective layer comprises at least one selected from the group consisting of acrylic resin, polyester resin, polyvinyl chloride resin and polystyrene resin.
23. A process as defined in claim 1, wherein the metal 20 conductive layer comprises silver, copper and aluminum.
24. A process as defined in claim 1, which further comprising,
subjecting the metal conductive layer to a blackening treatment to form a blackening treatment layer on at least a part of a surface of the metal conductive layer.
25. A process as defined in claim 24, wherein the blackening treatment is carried out by subjecting the metal of the metal conductive layer to an oxidation treatment or an sulfurization treatment.
26. A light transmissive electromagnetic shielding material prepared by the process described in claim 1.
27. A display filter comprising the light transmissive electromagnetic to shielding material described in claim 26.
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 of filling a container comprising:
providing a container with a top portion, an open bottom portion, a rotatable sifter mechanism engaged with the top portion, and a cover enclosing the top portion; wherein the cover is provided with at least one axially protruding pin to engage the at least one axially extending cavity in the rotatable sifter mechanism
rotating the rotatable sifter mechanism to a closed position;
positioning the container with the open bottom portion so that the open bottom portion faces toward a filling mechanism;
supplying material from the filling mechanism to the open bottom portion; and
attaching a bottom cap to the open bottom portion to enclose the material within the container.
2. The method according to claim 1, wherein the rotatable sifter mechanism includes at least one sifting hole, and
further comprising providing a bottom sifter with at least one sifting hole, the rotatable sifter mechanism rotatably engaged with the bottom sifter to offset the at least one sifting hole of the rotatable sifter mechanism with the at least one sifting hole of the bottom sifter when the cover is rotated with respect to the top portion.
3. The method according to claim 2, wherein the bottom sifter is integral to the open bottom portion.
4. The method according to claim 2, wherein rotating the cover rotates the rotatable sifter mechanism relative to the bottom sifter.
5. The method according to claim 2, further comprising providing the rotatable sifter mechanism with an elastomeric material on at least a portion of a surface of the rotatable sifter mechanism, the elastomeric material configured to seal a gap between the bottom sifter and the rotatable sifter mechanism.
6. The method according to claim 5, wherein the elastomeric material is a co-molded thermoplastic elastomer.
7. The method according to claim 2, further comprising providing a ring-shaped gasket between the rotatable sifter mechanism and the bottom sifter to prevent material leaking around the sifters.
8. A method of filling a container having a rotatable sifter mechanism comprising:
providing a container with a top portion, an open bottom portion, and a rotatable sifter mechanism engaged with the top portion;
closing the top portion, the closing including:
enclosing the top portion with a removable cover, including engaging the removable cover with the rotatable sifter mechanism;
rotating the removable cover with respect to the top portion, the rotating causing the rotatable sifter mechanism to rotate concurrently with the removable cover;
positioning the container so that the open bottom portion faces toward a filling mechanism;
supplying material from the filling mechanism to the open bottom portion; and
providing a bottom cap to the open bottom portion to enclose the material within the container.
9. The method according to claim 8, further comprising sealing the bottom cap after filling the container.
10. The method according to claim 8, further comprising providing a bottom sifter with at least one sifting hole, the bottom sifter engaged with the open bottom portion and rotatably engaged with the rotatable sifter mechanism.
11. The method according to claim 10, wherein the bottom sifter is integral to the open bottom portion.
12. The method according to claim 10, wherein the removable cover has at least one axially protruding pin and the rotatable sifter mechanism has at least one axially extending cavity, the at least one axially protruding pin extending into the at least one axially extending cavity when the removable cover is engaged with the rotatable sifter mechanism.
13. The method according to claim 12, wherein the at least one axially protruding pin is in a spring-compressed state to facilitate engagement of the removable cover with the rotatable sifter mechanism.
14. The method according to claim 12, wherein the rotatable sifter mechanism includes a channel configured to guide travel of the at least one axially protruding pin along a surface of the rotatable sifter mechanism.
15. A method of filling a container comprising:
providing a container with a top portion, an open bottom portion, and a rotatable sifter mechanism engaged with the top portion;
enclosing the top portion with a removable cover having at least one axially protruding pin configured to extend into an axially extending cavity in the rotatable sifter mechanism;
engaging the at least one axially protruding pin of the removable cover with the axially extending cavity of the rotatable sifter mechanism, the at least one axially protruding pin being in a spring-compressed state to facilitate engagement of the removable cover with the rotatable sifter mechanism, the rotatable sifter mechanism having a channel to guide travel of the at least one axially protruding pin along a surface of the rotatable sifter mechanism;
rotating the removable cover with respect to the top portion, the rotating causing the rotatable sifter mechanism to rotate concurrently with the removable cover;
positioning the container so that the open bottom portion faces toward a filling mechanism;
supplying material from the filling mechanism to the container through the open bottom portion; and
affixing a bottom cap to the open bottom portion to enclose the material within the container.
16. The method according to claim 15, further comprising providing a bottom sifter, wherein rotating the removable cover includes rotating the rotatable sifter mechanism to offset at least one sifting hole in the bottom sifter and at least one sifting hole in the rotatable sifter mechanism.
17. The method according to claim 16, wherein the bottom sifter is integral to the open bottom portion.
18. The method according to claim 15, further comprising sealing the bottom cap.