Title:
BLOW-MOLDING METHOD AND BLOW-MOLDING APPARATUS
Document Type and Number:
WIPO Patent Application WO/2019/065993
Kind Code:
A1
Abstract:
Provided is a blow-molding method in which primary blowing is performed on a resin preform 10 to form an intermediate molded product 30, which is then subjected to final blowing to form a hollow container 40 as a final molded product, wherein the step for performing the primary blowing and/or the step for performing the final blowing step comprise a wall-thinning step where a step for stretching primary molded articles 20a-20c or the preform 10, which are subject items, by a blowing process, and a step for deflating the respective stretched parts of the primary molded articles 20a-20c, which are the subject items, by letting out the air used for blowing, are successively repeated within a prescribed period of time.
Inventors:
OIKE TOSHITERU (JP)
TAKEHANA DAIZABURO (JP)
OZAKI YASUO (JP)
TAKEHANA DAIZABURO (JP)
OZAKI YASUO (JP)
Application Number:
PCT/JP2018/036318
Publication Date:
April 04, 2019
Filing Date:
September 28, 2018
Export Citation:
Assignee:
NISSEI ASB MACHINE CO LTD (JP)
International Classes:
B29C49/18
Foreign References:
| JP2011037139A | 2011-02-24 | |||
| JPS592820A | 1984-01-09 | |||
| US20110024380A1 | 2011-02-03 | |||
| JP2008110768A | 2008-05-15 | |||
| JP2003103610A | 2003-04-09 | |||
| JP2018062088A | 2018-04-19 | |||
| JP2013107391A | 2013-06-06 | |||
| JP3760045B2 | 2006-03-29 | |||
| JP3907494B2 | 2007-04-18 |
Other References:
See also references of EP 3689577A4
Attorney, Agent or Firm:
KURIHARA, Hiroyuki et al. (JP)
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