POLYESTER RESIN-MADE CONTAINER WITH COATED INTERNAL SURFACE AND METHOD OF MANUFACTURING THE SAME

Japanese Patent JP3866949

B2

PROBLEM TO BE SOLVED: To provide a PET container which is suppressed in coloring and includes excellent preservability for contents and a method of manufacturing it.
SOLUTION: The polyester resin container has a coating including amorphous carbon on an internal surface. A thickness of the coating is 200 to 800 angstroms and a Δb* value is 2 to 7. The polyester resin container 10 is put in a plasma chemical vapor deposition (CVD) device 1 using microwaves, and the inside of the device 1 is kept at a degree of vacuum of 1 to 50 Pa. A parent material containing a gaseous hydrocarbon compound is fed into the container 10 at a flow rate of 0.1 to 0.8 sccm/cm2 per surface area of the container. The microwaves of 150 to 600 W are radiated to the inside of the container 1 for 0.3 to 2.0 seconds, forming the coating containing amorphous carbon on an internal surface of the container 10. The parent material mainly contains acetylene.

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Shunzo Miyazaki
Yuji Yamashita
Akihisa Suzuki
Ueno Michio
Hiroyuki Nakane

JP2001265772A

January 10, 2007

September 03, 2001

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Hokkai Seikan Co., Ltd.

B65D25/14; B32B1/02; B32B9/00; B32B27/36; B65D23/02; B65D65/40; B65D81/24; C08J7/06; C23C16/26; C08L67/00; (IPC1-7): B65D25/14; B32B1/02; B32B9/00; B32B27/36; B65D23/02; B65D65/40; B65D81/24; C08J7/06; C23C16/26; //C08L67:00

JP8053116A
JP10249986A
JP2000117881A

Tatsuhiko Sato

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