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Patent US4826729A successfully refreshed from Google Patents.
US4826729A
Expired / Lapsed
US
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Insect pest-repelling film or sheet
Assignee: Sumitomo Chemical Co Ltd
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Filing: 1987-02-05
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Granted: 1989-05-02
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Expires: 2007-02-05
Abstract
Abstract An insect pest-repelling film or sheet is disclosed, having a reflective spectrum in a ultraviolet region of a wavelength of less than 0.4 μm, particularly a reflective spectrum peak at a wavelength of less than 0.4 μm, a reflective spectrum having not less than 1.4 of a ratio (R A /R B ) of the ultraviolet reflectance (R A ) and a visible light reflectance of a wavelength of 0.5 μm (R B ) and a visible light transmission of not less than 40%. The film is useful as a cover of houses and tunnels or mulching of ground for crop culture or as a repellent for various insect pests in agriculture, forestry, and gardening.
Inventors
- 👤 Shuji Kitamura
- 👤 Kiyohiko Nakae
- 👤 Kozo Kotani
- 👤 Takanori Kume
- 👤 Hideo Negawa
- 👤 Tsuneta Ikeda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 07:40
CPC Classifications
C; C08; C08K; C08K3/00; A; A01; A01G; A01G9/00; A01G9/14; A01G9/1438; A01G13/00; A01G13/20; Y; Y02; Y02A; Y02A40/00; Y02A40/10; Y02A40/25; Y10; Y10S; Y10S428/00; Y10S428/907; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31855
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
57 words
An insect pest-repelling film or sheet which has a reflective spectrum peak at a wavelength of less than 0.4 μm, and a reflective spectrum having at least 1.4 of a ratio (R A /R B ) of the ultraviolet reflectance (R A ) and the visible light reflectance of a wavelength of 0.5 μm (R B ).
Claim 2
Dependent Claim
57 words
An insect pest-repelling film or sheet which has a reflective spectrum peak at a wavelength of less than 0.4 μm, and a reflective spectrum having at least 1.4 of a ratio (R A /R B ) of the ultraviolet reflectance (R A ) and the visible light reflectance of a wavelength of 0.5 μm (R B ).
Claim 3
Dependent Claim
20 words
The insect pest-repelling film or sheet according to claim 1 which has a visible light transmission of at least 40%.
Claim 4
Dependent Claim
31 words
The insect pest-repelling film or sheet according to claim 1 which has an R A /R B ratio of at least 1.6 and a visible light transmission of at least 60%.
Claim 5
Dependent Claim
21 words
The insect pest-repelling film or sheet according to claim 1, which comprises a thermoplastic resin composition incorporated with an inorganic compound.
Claim 6
Dependent Claim
18 words
The insect pest-repelling film or sheet according to claim 4, wherein the inorganic compound is a titanate compound.
Claim 7
Dependent Claim
18 words
The insect pest-repelling film or sheet according to claim 4, wherein the inorganic compound is a zirconium compound.
Claim 8
Dependent Claim
48 words
The insect pest-repelling film or sheet according to claim 4, which comprises a layer of a resin composition containing at least one inorganic compound and at least one transparent layer of a resin composition on at least one face of the layer of the inorganic compound-containing resin composition.
Claim 9
Dependent Claim
48 words
The insect pest-repelling film of claim 4, wherein said thermoplastic resin is a member selected from the group consisting of low-density polyethylene, high-density polyethylene, ethylene-butene-1 copolymers, ethylene-4-methylpentene-1 copolymers, ethylene-vinyl acetate copolymers, ethylene-acrylic acid copolymers, ethylene-methyl methacrylate copolymers, ethylene-vinyl acetate-methyl methacrylate copolymers, polypropylene, vinyl chloride resins, and combinations thereof.
Claim 10
Dependent Claim
36 words
The insect pest-repelling film of claim 5, wherein said titanate compound is a member selected from the group consisting of potassium titanate, calcium titanate, magnesium titanate, barium titanate, strontium titanate, lithium titanate, and aluminum silicate titanate.
Claim 11
Dependent Claim
25 words
The insect pest-repelling film of claim 6, wherein said zirconium compound is a member selected from the group consisting of zirconium silicate and zirconium oxide.
Claim 12
Dependent Claim
20 words
The insect pest-repelling film of claim 4, wherein the inorganic compound is in the form of a whisker or powder.
Claim 13
Dependent Claim
32 words
The insect pest-repelling film of claim 4, wherein the organic compound is present in an amount of 0.2 to 20% by weight based on the total weight of the film or sheet.
Claim 14
Dependent Claim
40 words
The insect pest-repelling film of claim 7, which comprises a layer of resin composition containing at least one inorganic compound and a transparent layer of a resin composition on each face of said layer of said inorganic compound-containing resin composition.
Claim 15
Dependent Claim
16 words
The insect pest-repelling film of claim 1, which has a thickness of 20 to 100 μm.
Claim 16
Dependent Claim
16 words
The insect pest-repelling film of claim 4, which has a thickness of 20 to 100 μm.
Claim 17
Dependent Claim
34 words
The insect pest-repelling film of claim 7, wherein said film containing an inorganic compound has a thickness of 5 to 50 μm and the total thickness of the film is 10 to 100 μm.
Claim 18
Dependent Claim
34 words
The insect pest-repelling film of claim 13, wherein said film containing an inorganic compound has a thickness of 5 to 50 μm and the total thickness of the film is 10 to 100 μm.
Claim 19
Dependent Claim
22 words
A method for repelling insects from a given area, which comprises covering said area with the film or sheet of claim 1.
Claim 20
Dependent Claim
22 words
A method for repelling insects from a given area, which comprises covering said area with the film or sheet of claim 4.
References Cited (Backward Citations)
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GB1058013A
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US4214034A
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JPS5538369A
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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) | 1992-05-01 | 1992-10-31 | 1993-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-05-01 | 1996-10-31 | 1997-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-05-01 | 2000-10-31 | 2001-05-02 | $7700.00 | Window Closed / Lapsed |