Title:
POLYETHYLENE-BASED RESIN COMPOSITION AND CONTAINER FOR HIGH PURITY CHEMICAL SOLUTION
Document Type and Number:
Japanese Patent JP2021195436
Kind Code:
A
Abstract:
To provide a polyethylene-based resin composition which reduces deterioration in a molding surface of a container obtained by blow molding, suppresses elution of fine particles and metal, and is suitable for a container for high purity chemical solution.SOLUTION: A polyethylene-based resin composition contains 99.90-99.99 wt.% of a polyethylene resin satisfying the following requirements (1) to (5) and 0.01-0.10 wt.% of a vinylidene fluoride-tetrafluoroethylene-hexafluoropropylene copolymer. (1) Density of 940-960 kg/m3, (2) melt flow rate at 190°C and 21.6 kg load of 2.0-12 g/10 min, (3) ratio (Mw/Mn) of weight average molecular weight (Mw) to number average molecular weight (Mn) of 8.0-15, (4) component having a molecular weight of 1,000 or less of 0.50 wt.% or less, and (5) metal content of 20 ppm or less.SELECTED DRAWING: None
Inventors:
ISHIHARA HIROTAKA
NISHIKAWA HIROMASA
MORO YOSHIYUKI
NISHIKAWA HIROMASA
MORO YOSHIYUKI
Application Number:
JP2020102149A
Publication Date:
December 27, 2021
Filing Date:
June 12, 2020
Export Citation:
Assignee:
TOSOH CORP
International Classes:
C08L23/04; B65D65/00; C08F10/02; C08L27/12
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