EP0791620A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Plastic film
Assignee: Arkema France SA
•
Filing: 1997-02-11
•
Granted: —
•
Expires: 2017-02-11
Abstract
Abstract [Object] To provide a plastic film possessing improved permeability to water vapour and high heat shielding property. [Constituents] Plastic film characterized by water vapour permeability of 100 to 25,000 g/m 2 /24hr, light transmittance of 20 to 90 % and infrared transmittance of 5 to 90 % made of at least one material selected from a group comprising polyetherpolyamide block copolymer, thermoplastic polyester elastomer and thermoplastic polyurethane and containing flat inorganic particles coated with a substance having high refractive index.
Inventors
- 👤 Takatoshi Elf Atochem Japan Kuratsuji
- 👤 Jerôme Elf Atochem Japan Maillet
- 👤 Jun Yamamoto
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-01 08:36
CPC Classifications
C; C08; C08J; C08J5/00; C08J5/18; C08K; C08K3/00; C08J2367/00; C08J2367/04; C08J2375/00; C08J2375/04; C08J2377/00; Y; Y10; Y10T; Y10T428/00; Y10T428/25; Y10T428/251; Y10T428/256; Y10T428/257; Y10T428/27; Y10T428/31504; Y10T428/31551; Y10T428/31725; Y10T428/31765
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
30 words
Plastic film, characterized by water vapour permeability of 100 to 25,000 g/m 2 /24 hr, light transmittance of 20 to 90 % and infrared transmittance of 5 to 90 %.
Claim 2
Dependent Claim
31 words
The film set forth in claim 1, wherein said film is made of at least one material selected from a group comprising polyetherpolyamide block copolymer, thermoplastic polyester elastomer and thermoplastic polyurethane.
Claim 3
Dependent Claim
23 words
The film set forth in claim 1, wherein said film contains flat inorganic particles each coated with a substance having high refractive index.
Claim 4
Dependent Claim
18 words
A film characterized in that the flat inorganic particle has a particle size of less than 100 µm.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.