COOKING UTENSIL HAVING IMPROVED NON-STICK CHARACTERISTICS AND METHOD FOR MANUFACTURING SAME

WIPO Patent Application WO/2016/140418

A3

A cooking utensil according to the present invention comprises a cooking utensil body (A), which is configured as a laminate comprising a metal substrate (1) and a fluorine resin film (2) laminated on the metal substrate (1), the fluorine resin film (2) constituting the inner surface of the cooking utensil body (A), wherein the fluorine resin film (2) has a thickness deviation of 0.1-10μm and a surface roughness of 0.1-10μm. The fluorine resin film (2) is manufactured by a casting method, a cutting method, a calendar method, or an extrusion molding method, and therefore has uniform thickness and surface roughness. According to the present invention, the fluorine resin film (2) has uniform thickness and surface roughness, thereby improving non-stick characteristics. In addition, according to the present invention, the thickness of the fluorine resin film (2) can be easily formed even at a level of 20-300μm. Compared with conventional methods of spraying a fluorine resin coating liquid in a liquid state, the present invention can resolve environmental problems resulting from scattering of the fluorine resin coating liquid, and can prevent degradation of non-stick characteristics due to poor coating of pinholes, for example.

LIM YONG MUK (KR)
PARK KWAN YONG (KR)
JANG DAE JIN (KR)
OH SE CHUNG (KR)
HAN SEUNG HWAN (KR)
CHOI JI SOOK (KR)

PCT/KR2015/011065

May 18, 2017

October 20, 2015

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KOREA TACONIC CO LTD (KR)

A47J36/02; B32B15/08

JPH079223U	1995-02-10
JP2014231562A	2014-12-11
KR20100082687A	2010-07-19
JP2010131782A	2010-06-17
JPH09187885A	1997-07-22

See also references of EP 3266353A4

CHO, Hwal-Rai (KR)

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