Title:
MANUFACTURING METHOD OF MOLDED OBJECT BY BLOW MOLDING
Document Type and Number:
Japanese Patent JP2007261201
Kind Code:
A
Abstract:
To provide a manufacturing method for improving productivity at the time of blow molding to obtain a molded object of which the dynamic physical properties originally possessed by a polyolefinic resin are not damaged.
The molded object is manufactured by the blow molding of a mixture containing the polyolefinic resin and polyethylene wax of which the density measured according to a density gradient pipe method of JIS K7112 is 890-980 (kg/m3) and the number average molecular weight (Mn) in terms of polyethylene measured by gel permeation chromatography is 500-3,000 and which satisfies the relation represented by the formula (I): B≤0.0075×K, wherein B is a content ratio (wt.%) of a component of which the molecular weight in terms of polyethylene in polyethylene wax in a case measured by gel permeation chromatography is 20,000 or above and K is the melt viscosity (mPa s) of the polyethylene wax at 140°C.
COPYRIGHT: (C)2008,JPO&INPIT
Inventors:
UOSAKI HIROTAKA
KAWABE KUNIAKI
YASUI MOTOYASU
NAKAMURA HIDEO
AMADA YASUSHI
Application Number:
JP2006092165A
Publication Date:
October 11, 2007
Filing Date:
March 29, 2006
Assignee:
MITSUI CHEMICALS INC
International Classes:
B29C49/00; C08L23/00; C08L23/06; B29K23/00
Domestic Patent References:
| JPH10235719A | 1998-09-08 | | | |
| JPH09278951A | 1997-10-28 | | | |
| JP2005281449A | 2005-10-13 | | | |
| JP2007125885A | 2007-05-24 | | | |
| JPH10235719A | 1998-09-08 | | | |
| JPH09278951A | 1997-10-28 | | | |
| JP2005281449A | 2005-10-13 | | | |
| JP2007125885A | 2007-05-24 | | | |
Attorney, Agent or Firm:
Shunichiro Suzuki
Koji Makimura
