Patent US6017981A successfully refreshed from Google Patents.
US6017981A
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US
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Coating material with reflective properties in two wavelength ranges, and absorbent properties in a third wavelength range
Assignee: Individual
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Filing: 1996-01-11
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Granted: 2000-01-25
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Expires: 2016-01-11
Abstract
Abstract A coating material having reflective properties in two wavelength ranges and absorbent properties in a third wavelength range. The coating material comprises a binder, flaky first particles, and second particles. The binder has a transparency greater than 40% in the wavelength ranges of from 0.4 to 0.7 μm and from 10 to 50 μm and a refractive index n in the wavelength ranges less than 2.0. The coating material comprises from 20 to 30 percent by weight, based on the wet weight of the coating material, of the flaky first particles. The flaky first particles have a thickness less than 10 μm and a surface area (length×width) greater than 100 μm 2 and a reflectivity R greater than 40% in the wavelength range of from 10 to 50 μm. The second particles at least partially overlap the first particles. The second particles have a transparency greater than 40% only in the wavelength ranges of from 0.4 to 0.7 μm and from 10 to 50 μm, but an absorption greater than 20% in the wavelength range of from 1.0 to 2.0 μm, as well as a refractive index in the wavelength range of from 0.4 to 0.7 μm greater than that of the binder. The size of the second particles are selected such that there is an optimum back scattering and thus reflective effect in the wavelength range of from 0.4 to 0.7 μm.
Inventors
- 👤 Gerd Hugo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 22:24
CPC Classifications
C; C09; C09D; C09D5/00; C09D5/32; C04; C04B; C04B26/00; C04B26/02; C09D5/004; C04B2111/00; C04B2111/00474; C04B2111/00482; C04B2111/80
Claims Analysis
Total Claims: 53
Claim 1
Independent Claim
214 words
Coating material having reflective properties in two wavelength ranges and absorbent properties in a third wavelength range, comprising: a) a binder having transparency greater than 40% in the wavelength ranges of from 0.4 to 0.7 μm and from 10 to 50 μm and a refractive index n in the said wavelength ranges less than 2.0; b) 20 to 30 percent by weight, based on the wet weight of the coating material, of flaky first particles having a thickness less than 10 μm and a surface area (length×width) greater than 100 μm 2 and a reflectivity R greater than 40% in the wavelength range of from 10 to 50 μm; and c) second particles at least partially overlapping the first particles, which second particles have a transparency greater than 40% only in the wavelength ranges of from 0.4 to 0.7 μm and from 10 to 50 μm, but an absorption greater than 20% in the wavelength range of from 1.0 to 2.0 μm, as well as a refractive index in the wavelength range of from 0.4 to 0.7 μm greater than that of the binder the size of the second particles being selected such that there is an optimum back scattering and thus reflective effect in the wavelength range of from 0.4 to 0.7 μm.
Claim 2
Dependent Claim
214 words
Coating material having reflective properties in two wavelength ranges and absorbent properties in a third wavelength range, comprising: a) a binder having transparency greater than 40% in the wavelength ranges of from 0.4 to 0.7 μm and from 10 to 50 μm and a refractive index n in the said wavelength ranges less than 2.0; b) 20 to 30 percent by weight, based on the wet weight of the coating material, of flaky first particles having a thickness less than 10 μm and a surface area (length×width) greater than 100 μm 2 and a reflectivity R greater than 40% in the wavelength range of from 10 to 50 μm; and c) second particles at least partially overlapping the first particles, which second particles have a transparency greater than 40% only in the wavelength ranges of from 0.4 to 0.7 μm and from 10 to 50 μm, but an absorption greater than 20% in the wavelength range of from 1.0 to 2.0 μm, as well as a refractive index in the wavelength range of from 0.4 to 0.7 μm greater than that of the binder the size of the second particles being selected such that there is an optimum back scattering and thus reflective effect in the wavelength range of from 0.4 to 0.7 μm.
Claim 3
Dependent Claim
32 words
Coating material of claim 1 comprising a binder a) having a transparency greater than 60% in the wavelength ranges of from 0.4 to 0.7 μm and of from 10 to 50 μm.
Claim 4
Dependent Claim
29 words
Coating material of claim 1 comprising a binder having a transparency greater than 40% in the wavelength ranges of from 0.38 to 0.75 μm and 5 to 100 μm.
Claim 5
Dependent Claim
30 words
Coating material of claim 2 comprising a binder having a transparency greater than 60% in the wavelength ranges of from 0.38 to 0.75 μm and from 5 to 100 μm.
Claim 6
Dependent Claim
21 words
Coating material of claim 1 comprising a binder having a refractive index n in the said wavelength ranges less than 1.7.
Claim 7
Dependent Claim
16 words
Coating material of claim 5 comprising a binder having a refractive index n of about 1.5.
Claim 8
Dependent Claim
16 words
Coating material of claim 1 comprising flaky first particles b) having a thickness less than 5μm.
Claim 9
Dependent Claim
21 words
Coating material of claim 1 comprising flaky first particles b) having a surface area (length×width) greater than 2,500 μm 2 .
Claim 10
Dependent Claim
21 words
Coating material of claim 8 comprising flaky first particles b) having a surface area (length×width) greater than 10,000 μm 2 .
Claim 11
Dependent Claim
27 words
Coating material of claim 1 comprising flaky first particles b) having a reflectivity R greater than 40% in the wavelength range of from 5 to 100 μm.
Claim 12
Dependent Claim
27 words
Coating material of claim 1 comprising flaky first particles b) having a reflectivity R greater than 60% in the wavelength range of from 10 to 50 μm.
Claim 13
Dependent Claim
27 words
Coating material of claim 10 comprising flaky first particles b) having a reflectivity R greater than 60% in the wavelength range of from 5 to 100 μm.
Claim 14
Dependent Claim
30 words
Coating material of claim 1 comprising second particles c) having transparency greater than 40% in the wavelength ranges of from 0.38 to 0.75 μm and from 5 to 100 μm.
Claim 15
Dependent Claim
30 words
Coating material of claim 1 comprising second particles c) having transparency greater than 60% in the wavelength ranges of from 0.4 to 0.7 μm and from 10 to 50 μm.
Claim 16
Dependent Claim
31 words
Coating material of claim 13 comprising second particles c) having a transparency greater than 60% in the wavelength ranges of from 0.38 to 0.75 μm and from 10 to 100 μm.
Claim 17
Dependent Claim
24 words
Coating material of claim 1 comprising second particles c) having an absorption greater than 40% in the wavelength range of 1.0 to 2.0 μm.
Claim 18
Dependent Claim
25 words
Coating material of claim 1 comprising second particles c) having an absorption greater than 20% in the wavelength range of from 0.8 to 2.5 μm.
Claim 19
Dependent Claim
25 words
Coating material of claim 16 comprising second particles c) having an absorption greater than 40% in the wavelength range of from 0.8 to 2.5 μm.
Claim 20
Dependent Claim
29 words
Coating material of claim 1 comprising second particles c) having a refractive index greater than that of the binder in the wavelength range of from 0.38 to 0.75 μm.
Claim 21
Dependent Claim
65 words
Coating material of claim 1 comprising additionally: d) further particles having a transparency greater than 40% in the wavelength range of from 10 to 50 μm and which in the wavelength range of from 0.4 to 0.7 μm are selectively reflective in discrete ranges of the visible light and have an absorption greater than 20% in the wavelength range of from 1.0 to 2.0 μm.
Claim 22
Dependent Claim
26 words
Coating material according to claim 20 comprising further particles d) having a transparency greater than 40% in the wavelength range of from 5 to 100 μm.
Claim 23
Dependent Claim
25 words
Coating material of claim 20 comprising further particles d) having a transparency greater than 60% in the wavelength range of from 10 to 50 μm.
Claim 24
Dependent Claim
25 words
Coating material of claim 21 comprising further particles d) having a transparency greater than 60% in the wavelength range of from 5 to 100 μm.
Claim 25
Dependent Claim
30 words
Coating material of claim 20 comprising further particles d) which in the wavelength range of from 0.38 to 0.75 μm are selectively reflective in discrete ranges of the visible light.
Claim 26
Dependent Claim
25 words
Coating material of claim 20 comprising further particles d) having an absorption greater than 20% in the wavelength range of from 0.8 to 2.5 μm.
Claim 27
Dependent Claim
25 words
Coating material of claim 20 comprising further particles d) having an absorption greater than 40% in the wavelength range of from 1.0 to 2.0 μm.
Claim 28
Dependent Claim
24 words
Coating material of claim 25 comprising further particles d) having absorption greater than 40% in the wavelength range of from 0.8 to 2.5 μm.
Claim 29
Dependent Claim
15 words
Coating material of claim 1 wherein the second particles are added directly to the binder.
Claim 30
Dependent Claim
15 words
Coating material of claim 1, wherein the second particles are applied to the first particles.
Claim 31
Dependent Claim
32 words
Coating material of claim 1, wherein the first particles comprise an element selected from the group consisting of aluminum, copper, silver, gold, nickel, zinc, iron, silicon, germanium, and mixtures and alloys thereof.
Claim 32
Dependent Claim
30 words
Coating material of claim 1, wherein the first particles are electrically conductive and are coated with a further electrically conductive thin layer for increasing chemical resistivity and for increasing gloss.
Claim 33
Dependent Claim
30 words
Coating material of claim 2, wherein the first particles are electrically conductive and are coated with a further electrically conductive thin layer for increasing chemical resistivity and for increasing gloss.
Claim 34
Dependent Claim
30 words
Coating material of claim 28, wherein the first particles are electrically conductive and are coated with a further electrically conductive thin layer for increasing chemical resistivity and for increasing gloss.
Claim 35
Dependent Claim
30 words
Coating material of claim 29, wherein the first particles are electrically conductive and are coated with a further electrically conductive thin layer for increasing chemical resistivity and for increasing gloss.
Claim 36
Dependent Claim
30 words
Coating material of claim 30, wherein the first particles are electrically conductive and are coated with a further electrically conductive thin layer for increasing chemical resistivity and for increasing gloss.
Claim 37
Dependent Claim
24 words
Coating material of claim 1, wherein the first particles are electrically conductive and are coated with a non-electrically conductive thin layer which provides color.
Claim 38
Dependent Claim
24 words
Coating material of claim 2, wherein the first particles are electrically conductive and are coated with a non-electrically conductive thin layer which provides color.
Claim 39
Dependent Claim
24 words
Coating material of claim 28, wherein the first particles are electrically conductive and are coated with a non-electrically conductive thin layer which provides color.
Claim 40
Dependent Claim
24 words
Coating material of claim 29, wherein the first particles are electrically conductive and are coated with a non-electrically conductive thin layer which provides color.
Claim 41
Dependent Claim
24 words
Coating material of claim 30, wherein the first particles are electrically conductive and are coated with a non-electrically conductive thin layer which provides color.
Claim 42
Dependent Claim
22 words
Coating material of claim 1, wherein the first particles are composed of a non-electrically conductive material covered with an electrically conductive coating.
Claim 43
Dependent Claim
22 words
Coating material of claim 2, wherein the first particles are composed of a non-electrically conductive material covered with an electrically conductive coating.
Claim 44
Dependent Claim
22 words
Coating material of claim 28, wherein the first particles are composed of a non-electrically conductive material covered with an electrically conductive coating.
Claim 45
Dependent Claim
22 words
Coating material of claim 29, wherein the first particles are composed of a non-electrically conductive material covered with an electrically conductive coating.
Claim 46
Dependent Claim
22 words
Coating material of claim 30, wherein the first particles are composed of a non-electrically conductive material covered with an electrically conductive coating.
Claim 47
Dependent Claim
57 words
Coating material of claim 1, wherein the second particles are selected from the group consisting of metal sulphides; metal selenides; Group I metal chlorides; Group I metal fluorides; Group II metal fluorides; antimonides; metal oxides; barium titanate; barium ferrite; pure calcium sulphate CaSO 4 ; precipitated barium sulphate and blended crystals of barium sulphate with zinc sulphide.
Claim 48
Dependent Claim
57 words
Coating material of claim 2, wherein the second particles are selected from the group consisting of metal sulphides; metal selenides; Group I metal chlorides; Group I metal fluorides; Group II metal fluorides; antimonides; metal oxides; barium titanate; barium ferrite; pure calcium sulphate CaSO 4 ; precipitated barium sulphate and blended crystals of barium sulphate with zinc sulphide.
Claim 49
Dependent Claim
57 words
Coating material of claim 28, wherein the second particles are selected from the group consisting of metal sulphides; metal selenides; Group I metal chlorides; Group I metal fluorides; Group II metal fluorides; antimonides; metal oxides; barium titanate; barium ferrite; pure calcium sulphate CaSO 4 ; precipitated barium sulphate and blended crystals of barium sulphate with zinc sulphide.
Claim 50
Dependent Claim
58 words
Coating material of claim 20, wherein the further particles are inorganic colour metal oxide pigments selected from the group consisting of transparent iron oxides; red iron oxides; yellow iron oxides; α-iron oxides, iron oxide black pigments; chromium oxide green; red lead oxide; molybdenum oxides; mixed metal oxides; and iron blue pigments based on microcrystalline FE(II) FE(III) cyanide complexes.
Claim 51
Dependent Claim
25 words
Coating material of claim 20 wherein the further particles are selected from the group consisting of the disazo pigments, indigo pigments, thioindigo pigments and phthalocyanine.
Claim 52
Dependent Claim
39 words
Coating material of claim 1 wherein the binder is a solvent based binder selected from the group consisting of cyclized rubber, chlorine rubber, butyl rubber, hydrocarbon resin, αmethylstyrene-acrylonitrile copolymer, polyester amide polymer and acrylic resin based on butyl acrylate.
Claim 53
Dependent Claim
46 words
Coating material of claim 1 wherein the binder is an aqueous solution or dispersion selected from the group consisting of polyethylene, polyethylene oxide, ethylene acrylic acid copolymers, methacrylate polymers, acrylate styrene polymers, vinyl pyrrolidine-vinyl acetate copolymers, atactic polyisopropyl acrylate polymers, polyvinyl pyrrolidine polymers and mixtures thereof.
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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) | 2003-01-24 | 2003-07-26 | 2004-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-01-24 | 2007-07-26 | 2008-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-01-24 | 2011-07-26 | 2012-01-25 | $7700.00 | Window Closed / Lapsed |