Title:
POLYOXYMETHYLENE POLYMER PELLETS, PROCESS FOR MANUFACTURING POLYOXYMETHYLENE POLYMER PELLETS, AND QUALITY EVALUATION METHOD FOR POLYOXYMETHYLENE POLYMER PELLETS
Document Type and Number:
WIPO Patent Application WO/2012/161053
Kind Code:
A1
Abstract:
The present invention minimizes, during the molding of polymer pellets which comprise a polyoxymethylene polymer into molded parts, the adhesion of deposit onto a mold and the generation of formaldehyde. The present invention provides polyoxy- methylene polymer pellets which comprise (A) 100 parts by mass of a polyoxymethylene polymer, (B) 0.01 to 1.0 part by mass of a sterically hindered phenol antioxidant and (C) 0.01 to 0.10 part by mass total of melamine and methylol melamine and in which the content ratio of methylol melamine to the total of melamine and methylol melamine is so regulated as to fall within a specific range.
Inventors:
HORIGUCHI TADAHIRO (JP)
Application Number:
PCT/JP2012/062544
Publication Date:
November 29, 2012
Filing Date:
May 16, 2012
Export Citation:
Assignee:
POLYPLASTICS CO (JP)
HORIGUCHI TADAHIRO (JP)
HORIGUCHI TADAHIRO (JP)
International Classes:
C08L59/00; B29B9/12; C08J3/12; C08K5/10; C08K5/13; C08K5/20; C08K5/3492
Domestic Patent References:
| WO2008069184A1 | 2008-06-12 |
Foreign References:
| JP2005036040A | 2005-02-10 | |||
| JP2006169310A | 2006-06-29 | |||
| JP2010084140A | 2010-04-15 |
Attorney, Agent or Firm:
SHOBAYASHI, Masayuki et al. (JP)
Right wood Masayuki (JP)
Right wood Masayuki (JP)
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