US4076889A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat-insulation material
Assignee: Kureha Corp
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Filing: 1975-10-14
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Granted: 1978-02-28
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Expires: 1995-10-14
Abstract
Abstract A method and laminate for protecting an article from exposure to radiant heat are disclosed. The laminate is formed by adhering a metal coating to one surface of a polymeric film of polyfluoroolefin or fluoroolefin copolymer, having not more than a 50% transmission ratio of visible ray and not less than a 30% transmission ratio of infrared ray. The laminate is adhered to a surface of the article to be protected with the polymeric surface outward.
Inventors
- 👤 Tohru Sasaki
- 👤 Syuuzi Terasaki
- 👤 Takao Ichii
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:53
CPC Classifications
B; B32; B32B; B32B15/00; B32B15/04; B32B15/08; B32B15/085; B32B15/20; B32B27/00; B32B27/18; B32B27/20; B32B27/32; B32B27/322; F; F16; F16L; F16L59/00; F16L59/08; B32B2307/00; B32B2307/30; B32B2307/304; B32B2311/00; B32B2311/02; B32B2311/04; B32B2311/06; B32B2311/08; B32B2311/16; B32B2311/22; B32B2311/24; B32B2327/00; B32B2327/12; B32B2327/18; Y; Y10; Y10S; Y10S428/00; Y10S428/92; Y10T; Y10T428/00; Y10T428/26; Y10T428/261; Y10T428/263; Y10T428/264; Y10T428/265; Y10T428/266; Y10T428/269; Y10T428/31504; Y10T428/3154; Y10T428/31544; Y10T428/31678; Y10T428/31692; Y10T428/31699
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
112 words
A heat-insulation laminate comprising: a. a layer of a film of polyfluoroolefin or fluoroolefin copolymer having not more than a 50% transmission ratio of visible ray and not less than a 30% transmission ratio of infrared ray, said film of polyfluoroolefin or fluoroolefin copolymer containing from 0.5 to 50 parts by weight, based on 100 parts by weight of said polyfluoroolefin or fluoroolefin copolymer, of a filler selected from the group consisting of titanium dioxide, zinc oxide, aluminum oxide, calcium carbonate, gypsum, magnesium oxide and calcium sulfite; and b. a layer of metal on one surface of said film, said metal layer having a thickness of from 30 A to several microns.
Claim 2
Dependent Claim
112 words
A heat-insulation laminate comprising: a. a layer of a film of polyfluoroolefin or fluoroolefin copolymer having not more than a 50% transmission ratio of visible ray and not less than a 30% transmission ratio of infrared ray, said film of polyfluoroolefin or fluoroolefin copolymer containing from 0.5 to 50 parts by weight, based on 100 parts by weight of said polyfluoroolefin or fluoroolefin copolymer, of a filler selected from the group consisting of titanium dioxide, zinc oxide, aluminum oxide, calcium carbonate, gypsum, magnesium oxide and calcium sulfite; and b. a layer of metal on one surface of said film, said metal layer having a thickness of from 30 A to several microns.
Claim 3
Dependent Claim
26 words
The laminate of claim 1, wherein said film of polyfluoroolefin or fluoroolefin copolymer has a thickness in the range of from 6 μ to 200 μ.
Claim 4
Dependent Claim
41 words
The laminate of claim 1, wherein said polyfluoroolefin is a polymer obtained by polymerizing at least one fluoroolefin selected from the group consisting of vinyl fluoride, vinylidene fluoride, ethylene trifluoride, ethylene tetrafluoride, vinylidene fluorochloride, ethylene difluorochloride, ethylene trifluorochloride and propylene hexafluoride.
Claim 5
Dependent Claim
18 words
The laminate of claim 1, wherein said polyfluoroolefin is polyvinyl fluoride, polyvinylidene fluoride, polyethylene tetrafluoride or polyethylene trifluochloride.
Claim 6
Dependent Claim
52 words
The laminate of claim 1, wherein said polyfluoroolefin is a polymer obtained by polymerizing not less than 85% by weight of vinylidene fluoride with the balance of at least one fluoroolefin selected from the group consisting of vinyl fluoride, ethylene trifluoride, ethylene tetrafluoride, vinylidene fluorochloride, ethylene difluorochloride, ethylene trifluorochloride and propylene hexafluoride.
Claim 7
Dependent Claim
25 words
The laminate of claim 1, wherein said fluoroolefin copolymer is a copolymer obtained by polymerizing at least one fluoroolefin with at least one other monomer.
Claim 8
Dependent Claim
19 words
The laminate of claim 1, wherein said fluoroolefin copolymer is an ethylene tetrafluoride-ethylene copolymer or a vinylidene fluoride-ethylene copolymer.
Claim 9
Dependent Claim
18 words
The laminate of claim 1, wherein said metal is silver, platinum, gold, aluminum, nickel, chromium, tin or antimony.
Claim 10
Dependent Claim
24 words
A translucent laminate according to claim 1 wherein said metal layer has a thickness on the order of from 30 A to 500 A.
Claim 11
Dependent Claim
10 words
The laminate of claim 1 wherein said filler is white.
References Cited (Backward Citations)
US2842603A
Cited
US2888364A
Cited
US3217083A
Cited
US3240825A
Cited
US3318850A
Cited
US3567521A
Cited
US3930109A
Cited
US3930066A
Cited
US3971874A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-02-27 | 1981-08-29 | 1982-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-02-27 | 1985-08-29 | 1986-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-02-27 | 1989-08-29 | 1990-02-28 | $7700.00 | Window Closed / Lapsed |