Patent US3790406A successfully refreshed from Google Patents.
US3790406A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of treating non-conducting and poorly conducting film
Assignee: Individual
•
Filing: 1971-12-23
•
Granted: 1974-02-05
•
Expires: 1991-12-23
Abstract
Abstract The disclosure relates to an applied film of a non-conducting lacquer comprising a mixture of non-conducting or weakly conducting metallic powder with a lacquer base wherein the mixture is changed into a good conductor by applying a conductivating agent in the presence of a solvent. The method lends itself to the manufacture of plate electrodes for batteries, conducting yarn, conducting nets, electrical circuits, heating elements, charge accumulation prevention shields, radio wave shields, etc. from films of a non-conducting or weakly conducting lacquer.
Inventors
- 👤 T Yamamoto
- 👤 N Matsuo
- 👤 H Sakai
- 👤 K Igarashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:10
CPC Classifications
B; B05; B05D; B05D5/00; B05D5/12
Claims Analysis
Total Claims: 32
Claim 1
Independent Claim
25 words
A method as set forth in claim 1 wherein said conductivating agent is applied to said film as part of a mixture with said solvent.
Claim 2
Dependent Claim
48 words
A method as set forth in claim 2 wherein said conductivating agent is taken from the class consisting of acids containing halogens, halides, halogen gases, acids containing phosphorous and carboxylic acids represented by the formula CnH2n 1COOH where n is in the range of about 1 to 4.
Claim 3
Dependent Claim
23 words
A method as set forth in claim 1 wherein said film is dipped in a fluid comprising said solvent and said conductivating agent.
Claim 4
Dependent Claim
48 words
A method as set forth in claim 4 wherein said conductivating agent is taken from the class consisting of acids containing halogens, halides, halogen gases, acids containing phosphorous and carboxylic acids represented by the formula CnH2n 1COOH where n is in the range of about 1 to 4.
Claim 5
Dependent Claim
39 words
A method as set forth in claim 1 wherein said film is initially softened and swelled by the application of said solvent thereto, said conductivating agent then being applied to said film while in the softened and swelled condition.
Claim 6
Dependent Claim
48 words
A method as set forth in claim 6 wherein said conductivating agent is taken from the class consisting of acids containing halogens, halides, halogen gases, acids containing phosphorous and carboxylic acids represented by the formula CnH2n 1COOH where n is in the range of about 1 to 4.
Claim 7
Dependent Claim
61 words
A method as set forth in claim 1 wherein said lacquer also includes a binder and a solvent, the range of metallic powder being about 40 to about 5 percent by volume, the range of binder being from about 45 to about 5 percent by volume and the range of solvent being from about 90 to about 15 percent by volume.
Claim 8
Dependent Claim
29 words
A method according to claim 1, wherein the step of applying the conductivating agent to the film is carried out in an ambient temperature of between 50* to 100*C.
Claim 9
Dependent Claim
14 words
A method according to claim 1 followed by the step of drying the film.
Claim 10
Dependent Claim
31 words
A method according to claim 10 including, after the step of drying, the further step of applying to the film a protective coating which is impervious to moisture and the atmosphere.
Claim 11
Dependent Claim
13 words
A method according to claim 11 wherein the coating is a plastic material.
Claim 12
Dependent Claim
12 words
A method according to claim 11 in which the coating is metallic.
Claim 13
Dependent Claim
15 words
A method according to claim 13 in which the metallic coating is applied by electro-plating.
Claim 14
Dependent Claim
32 words
A method as set forth in claim 1 wherein said solvent is taken from the class consisting of methylethylketone, toluene, ethyl acetate, tetrahydrofuran, dimethylacetoamide, methylene chloride, acetone, methanol, ethanol and combinations thereof.
Claim 15
Dependent Claim
61 words
A method as set forth in claim 15 wherein said lacquer also includes a binder and a solvent, the range of metallic powder being about 40 to about 5 percent by volume, the range of binder being from about 45 to about 5 percent by volume and the range of solvent being from about 90 to about 15 percent by volume.
Claim 16
Dependent Claim
61 words
A method as set forth in claim 1 wherein said metallic powder particles includes a film of at least one of the metallic oxide and sulfide thereon, the powder size being in the range of 20 to 200 mesh, said metal being from the class consisting of copper, brass, bronze, copper alloys, nickel, tin, zinc, lead, iron, aluminum and mixtures thereof.
Claim 17
Dependent Claim
32 words
A method as set forth in claim 17 wherein said solvent is taken from the class consisting of methylethylketone, toluene, ethyl acetate, tetrahydrofuran, dimethylacetoamide, methylene chloride, acetone, methanol, ethanol and combinations thereof.
Claim 18
Dependent Claim
61 words
A method as set forth in claim 13 wherein said lacquer also includes a binder and a solvent, the range of metallic powder being about 40 to about 5 percent by volume, the range of binder being from about 45 to about 5 percent by volume and the range of solvent being from about 90 to about 15 percent by volume.
Claim 19
Dependent Claim
72 words
A method as set forth in claim 1 wherein said film is applied to one of electrical boards formed from plastic, natural fibers, synthetic fibers, plastic fibers, yarn produced by combining natural, synthetic and plastic fibers, stranded yarns, flat woven tape of plastic yarn, monofilaments of plastic cloth, net produced by weaving said fibers or by molding or stamping plastic material, plastic sheets, plastic film and cloth or nets made from paper.
Claim 20
Dependent Claim
32 words
A method as set forth in claim 20 wherein said solvent is taken from the class consisting of methylethylketone, toluene, ethyl acetate, tetrahydrofuran, dimethylacetoamide, methylene chloride, acetone, methanol, ethanol and combinations thereof.
Claim 21
Dependent Claim
61 words
A method as set forth in claim 20 wherein said mEtallic powder particles includes a film of at least one of the metallic oxide and sulfide thereon, the powder size being in the range of 20 to 200 mesh, said metal being from the class consisting of copper, brass, bronze, copper alloys, nickel, tin, zinc, lead, iron, aluminum and mixtures thereof.
Claim 22
Dependent Claim
32 words
A method as set forth in claim 22 wherein said solvent is taken from the class consisting of methylethylketone, toluene, ethyl acetate, tetrahydrofuran, dimethylacetoamide, methylene chloride, acetone, methanol, ethanol and combinations thereof.
Claim 23
Dependent Claim
48 words
A method as set forth in claim 1 wherein said conductivating agent is taken from the class consisting of acids containing halogens, halides, halogen gases, acids containing phosphorous and carboxylic acids represented by the formula CnH2n 1COOH where n is in the range of about 1 to 4.
Claim 24
Dependent Claim
32 words
A method as set forth in claim 24 wherein said solvent is taken from the class consisting of methylethylketone, toluene, ethyl acetate, tetrahydrofuran, dimethylacetoamide, methylene chloride, acetone, methanol, ethanol and combinations thereof.
Claim 25
Dependent Claim
58 words
A method as set forth in claim 24 wherein said lacquer also includes a binder and a solvent, the range of metallic powder being about 40% to about 5% by volume, the range of binder being from about 45% to about 5% by volume and the range of solvent being from about 90% to about 15% by volume.
Claim 26
Dependent Claim
61 words
A method as set forth in claim 24 wherein said metallic powder particles includes a film of at least one of the metallic oxide and sulfide thereon, the powder size being in the range of 20 to 200 mesh, said metal being from the class consisting of copper, brass, bronze, copper alloys, nickel, tin, zinc, lead, iron, aluminum and mixtures thereof.
Claim 27
Dependent Claim
32 words
A method as set forth in claim 27 wherein said solvent is taken from the class consisting of methylethylketone, toluene, ethyl acetate, tetrahydrofuran, dimethylacetoamide, methylene chloride, acetone, methanol, ethanol and combinations thereof.
Claim 28
Dependent Claim
61 words
A method as set forth in claim 28 wherein said lacquer also includes a binder and a solvent, the range of metallic powder being about 40 to about 5 percent by volume, the range of binder being from about 45 to about 5 percent by volume and the range of solvent being from about 90 to about 15 percent by volume.
Claim 29
Dependent Claim
72 words
A method as set forth in claim 24 wherein said film is applied to one of electrical boards formed from plastic, natural fibers, synthetic fibers, plastic fibers, yarn produced by combining natural, synthetic and plastic fibers, stranded yarns, flat woven tape of plastic yarn, monofilaments of plastic cloth, net produced by weaving said fibers or by molding or stamping plastic material, plastic sheets, plastic film and cloth or nets made from paper.
Claim 30
Dependent Claim
32 words
A method as set forth in claim 30 wherein said solvent is taken from the class consisting of methylethylketone, toluene, ethyl acetate, tetrahydrofuran, dimethylacetoamide, methylene chloride, acetone, methanol, ethanol and combimations thereof.
Claim 31
Dependent Claim
61 words
A method as set forth in claim 30 wherein said metallic powder particles includes a film of at least one of the metallic oxide and sulfide thereon, the powder size being in the range of 20 to 200 mesh, said metal being from the class consisting of copper, brass, bronze, copper alloys, nickel, tin, zinc, lead, iron, aluminum and mixtures thereof.
Claim 32
Dependent Claim
32 words
A method as set forth in claim 32 wherein said solvent is taken from the class consisting of methylethylketone, toluene, ethyl acetate, tetrahydrofuran, dimethylacetoamide, methylene chloride, acetone, methanol, ethanol and combinations thereof.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-02-04 | 1977-08-06 | 1978-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-04 | 1981-08-06 | 1982-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-04 | 1985-08-06 | 1986-02-05 | $7700.00 | Window Closed / Lapsed |