Title:
HEAT-GENERATING FILM AND METHOD FOR MANUFACTURING HEAT-GENERATING FILM
Document Type and Number:
WIPO Patent Application WO/2021/157532
Kind Code:
A1
Abstract:
Provided is a heat-generating film that has less visible electrically conductive portions, has high transparency (transmittance), and is capable of generating a sufficient amount of heat when energized. The heat-generating film is provided in a surface thereof with a plurality of first grooves extending in a first direction, a transparent film having a plurality of second grooves extending in a second direction across the first direction, and electrically conductive portions present in the first and second grooves. The electrically conductive portions have a line width of 0.2 to 10 μm and a height of 0.5 to 10 μm. The interval between the electrically conductive portions present in two of the first grooves adjacent to each other is 20 to 1000 μm. The number of intersecting points of the electrically conductive portions present in the first grooves and the electrically conductive portions present in the second grooves is 20 to 2500 per cm2. The area ratio of the electrically conductive portions is 0.1 to 10%.
Inventors:
GOTO MASANAO (JP)
NISHIZAWA TAKESHI (JP)
SHIBANUMA TOSHIHIKO (JP)
NISHIZAWA TAKESHI (JP)
SHIBANUMA TOSHIHIKO (JP)
Application Number:
PCT/JP2021/003560
Publication Date:
August 12, 2021
Filing Date:
February 01, 2021
Export Citation:
Assignee:
ENEOS CORP (JP)
International Classes:
H05B3/10; B29C59/02; H05B3/20
Foreign References:
| JP2018055941A | 2018-04-05 | |||
| JP2015020723A | 2015-02-02 | |||
| JP2018039226A | 2018-03-15 | |||
| JPH08207191A | 1996-08-13 | |||
| JP2017010679A | 2017-01-12 |
Attorney, Agent or Firm:
KAWAKITA Kijuro et al. (JP)
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