Patent US4477608A successfully refreshed from Google Patents.
US4477608A
Expired / Lapsed
US
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Compositions containing graphite
Assignee: BASF Corp
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Filing: 1983-08-08
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Granted: 1984-10-16
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Expires: 2003-08-08
Abstract
Abstract Compositions containing high-molecular, organic material which can be processed into moulded products, 0.001 to 3.0% by weight of graphite, relative to the high-molecular, organic material, and one or more pigments or polymer-soluble dyes, are suitable for producing moulded products.
Inventors
- 👤 Fridolin Babler
- 👤 Adolf Weissmuller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:43
CPC Classifications
C; C08; C08K; C08K9/00; C08K9/04; C08K3/00; C08K3/02; C08K3/04; C08K5/00; C08K5/0008; C08K5/0041
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
127 words
A composition, which can be processed into moulded products, which comprises (a) a thermoplastic high-molecular organic material selected from the group consisting of polyvinyl chloride, polyethylene, polypropylene, polystyrene, polycarbonate, polyacrylate, linear polyester, polyether, linear polyurethane and copolymers thereof, (b) 0.001 to 3.0% by weight, relative to the high-molecular organic material, of graphite of a particle diameter of less than 100 microns, and (c) 0.001 to 10.0% by weight, relative to the high-molecular organic material, of one or more organic pigments; polymer-soluble dyes; or inorganic pigments selected from the group consisting of iron oxide, antimony yellow, lead chromates, molybdenum red, ultramarine blue, cobalt blue, manganese blue, chromium oxide green, hydrated chrome oxide green, cobalt green, cadmium sulfide, zinc sulfide, arsenic disulfide, mercury sulfide, antimony trisulfide and cadmium sulfoselenides.
Claim 2
Dependent Claim
127 words
A composition, which can be processed into moulded products, which comprises (a) a thermoplastic high-molecular organic material selected from the group consisting of polyvinyl chloride, polyethylene, polypropylene, polystyrene, polycarbonate, polyacrylate, linear polyester, polyether, linear polyurethane and copolymers thereof, (b) 0.001 to 3.0% by weight, relative to the high-molecular organic material, of graphite of a particle diameter of less than 100 microns, and (c) 0.001 to 10.0% by weight, relative to the high-molecular organic material, of one or more organic pigments; polymer-soluble dyes; or inorganic pigments selected from the group consisting of iron oxide, antimony yellow, lead chromates, molybdenum red, ultramarine blue, cobalt blue, manganese blue, chromium oxide green, hydrated chrome oxide green, cobalt green, cadmium sulfide, zinc sulfide, arsenic disulfide, mercury sulfide, antimony trisulfide and cadmium sulfoselenides.
Claim 3
Dependent Claim
11 words
A moulded product produced from the composition according to claim 1.
Claim 4
Dependent Claim
17 words
A composition according to claim 1, wherein the graphite has a carbon content of at least 99%.
Claim 5
Dependent Claim
31 words
A composition according to claim 1, wherein the graphite is present in flake- or lamellar-form having a diameter of up to 20 μm and a thickness of up to 4 μm.
Claim 6
Dependent Claim
23 words
A composition according to claim 1, wherein the amount of graphite is 0.01 to 1.0% by weight, relative to the high-molecular organic material.
Claim 7
Dependent Claim
13 words
A composition according to claim 1, wherein the pigment is an organic pigment.
Claim 8
Dependent Claim
14 words
A composition according to claim 1, wherein the pigment is a transparent organic pigment.
Claim 9
Dependent Claim
21 words
A composition according to claim 1, wherein the dye is an anthraquinone dye or a metal complex of an azo dye.
Claim 10
Dependent Claim
24 words
A composition according to claim 1, wherein graphite treated with stearic acid, stearylamine, hydrogenated abietic acid, epoxidised soyabean oil or a 1,2-diol is present.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-10-16 | 1988-04-16 | 1988-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-10-16 | 1992-04-16 | 1992-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-10-16 | 1996-04-16 | 1996-10-16 | $7700.00 | Window Closed / Lapsed |