Cleaning and liquid contact with solids – Processes – Gas or vapor condensation or absorption on work
Patent
1995-07-10
1997-08-19
El-Arini, Zeinab
Cleaning and liquid contact with solids
Processes
Gas or vapor condensation or absorption on work
134 221, 134 38, B08B 300, B08B 500, B08B 900
Patent
active
056583931
ABSTRACT:
A method of removing adsorbates on a polyester bottle, the body of the bottle having a mean crystallinity of 32 to 70%, a methanol adsorption of 1,500 ppm or less and a paraxylene adsorption of 300 ppm or less. As a result, the bottle has excellent non-adsorptivity and heat resistance. According to the method, the adsorbates can be rapidly desorbed by holding the bottle in air of 40.degree. to 150.degree. C. or bringing the bottle into contact with water or water vapor heated at 40.degree. to 150.degree. C.
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Kaya Hidenori
Niimi Hiroji
El-Arini Zeinab
Mitsui Petrochemical Industries Ltd.
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