Title:
CELLULOSE MICROFIBER-REINFORCED POLYAMIDE RESIN MOLDED ARTICLE
Document Type and Number:
WIPO Patent Application WO/2021/085630
Kind Code:
A1
Abstract:
Provided is a polyamide resin molded article capable of achieving high mechanical properties and dimensional accuracy as well as low friction coefficient, low wear, and/or low abrasion property. One embodiment of the present invention provides a polyamide resin molded article composed of a polyamide resin composition including (A) a polyamide resin, (B) chemically modified cellulose microfibers having a weight average molecular weight (Mw) of 100,000 or higher, a ratio (Mw/Mn) of the weight average molecular weight (Mw) and the number average molecular weight (Mn) of 6 or lower, an alkali-soluble polysaccharides average content of 12 mass percent or lower, and a degree of crystallization of 60% or higher, and (C) a dispersant having a melting point of 80°C or lower and a number average molecular weight of 1000-50,000, wherein the melting point (Tm) and the crystallization temperature (Tc) of the polyamide resin molded article satisfy formula (1): Tm - Tc ≧ 30°C ... (1).
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Inventors:
MAEKAWA TOMOFUMI (JP)
KUSUMOTO SARA (JP)
KUSUMOTO SARA (JP)
Application Number:
PCT/JP2020/040940
Publication Date:
May 06, 2021
Filing Date:
October 30, 2020
Export Citation:
Assignee:
ASAHI CHEMICAL IND (JP)
International Classes:
C08L77/00; C08K11/00; C08L1/08
Domestic Patent References:
| WO2019230970A1 | 2019-12-05 | |||
| WO2006054774A1 | 2006-05-26 |
Foreign References:
| JP2019006875A | 2019-01-17 | |||
| JP2010077248A | 2010-04-08 | |||
| JP2019043979A | 2019-03-22 | |||
| JP6681499B1 | 2020-04-15 | |||
| JP2017171698A | 2017-09-28 | |||
| JP2014248824A | 2014-12-09 | |||
| JPH07228775A | 1995-08-29 | |||
| JP2003055549A | 2003-02-26 |
Other References:
"Polymer Process Engineering", 1994, PRENTICE-HALL, INC., pages: 291 - 294
MOKUSHITSU KAGAKU: "Japanese Pharmacopeia", 2000, THE JAPAN WOOD RESEARCH SOCIETY, pages: 92 - 97
R.F. FODERS, POLYMER ENGINEERING & SCIENCE, vol. 12, no. 10, 1974, pages 2359 - 2370
MOKUSHITSU KAGAKU: "Japanese Pharmacopeia", 2000, THE JAPAN WOOD RESEARCH SOCIETY, pages: 92 - 97
R.F. FODERS, POLYMER ENGINEERING & SCIENCE, vol. 12, no. 10, 1974, pages 2359 - 2370
Attorney, Agent or Firm:
AOKI, Atsushi et al. (JP)
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