Title:
CELLULOSE-CONTAINING GEAR
Document Type and Number:
WIPO Patent Application WO/2019/208514
Kind Code:
A1
Abstract:
Provided is a gear having excellent continuous moldability with respect to the intended use, and also having both high slidability and high durability. One embodiment provides a gear which is a resin molded body constituted of a resin composition comprising (A) a thermoplastic resin and (B) cellulose nanofibers having an average fiber diameter of 1,000 nm or less. The number average molecular weight of (A) the thermoplastic resin is within a range of 10,000 to 15,000, and the arithmetic average surface roughness Sa of the sliding surface that contacts other gear teeth is 3.0 μm or less.
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Inventors:
TSUZUKI JUNICHI (JP)
KUSUMOTO SARA (JP)
KUSUMOTO SARA (JP)
Application Number:
PCT/JP2019/017076
Publication Date:
October 31, 2019
Filing Date:
April 22, 2019
Export Citation:
Assignee:
ASAHI CHEMICAL IND (JP)
International Classes:
F16H55/06; C08J5/04; C08K3/00; C08K5/00; C08L1/02; C08L101/00
Domestic Patent References:
WO2006054774A1 | 2006-05-26 | |||
WO2017159823A1 | 2017-09-21 |
Foreign References:
JP2013248824A | 2013-12-12 | |||
JP2016200185A | 2016-12-01 | |||
JP2011184816A | 2011-09-22 | |||
JP2017171698A | 2017-09-28 | |||
JP2001289309A | 2001-10-19 | |||
JPH07228775A | 1995-08-29 | |||
JP2003055549A | 2003-02-26 | |||
JP2004075749A | 2004-03-11 |
Other References:
"Polymer Process Engineering", 1994, PRENTICE-HALL, INC, pages: 291 - 294
R.F. FODERS, POLYMER ENGINEERING & SCIENCE, vol. 12, no. 10, 1974, pages 2359 - 2370
UEDA ET AL., TORYO NO KENKYU, no. 152, October 2010 (2010-10-01)
"Japanese Pharmacopeia", HIROKAWA SHOTEN, article "Crystalline Cellulose Verification Test (3"
CAS, no. 61788-85-0
See also references of EP 3805611A4
R.F. FODERS, POLYMER ENGINEERING & SCIENCE, vol. 12, no. 10, 1974, pages 2359 - 2370
UEDA ET AL., TORYO NO KENKYU, no. 152, October 2010 (2010-10-01)
"Japanese Pharmacopeia", HIROKAWA SHOTEN, article "Crystalline Cellulose Verification Test (3"
CAS, no. 61788-85-0
See also references of EP 3805611A4
Attorney, Agent or Firm:
AOKI, Atsushi et al. (JP)
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