Title:
POLYACETAL RESIN COMPOSITION AND GEAR MOLDED BODY
Document Type and Number:
Japanese Patent JP2021080371
Kind Code:
A
Abstract:
To provide a polyacetal resin composition which is excellent in creep property, repeated vibration fatigue resistance, gear durability before and after aging and thermal stability.SOLUTION: The polyacetal resin composition contains 0.0005-0.008 pts.mass of boron nitride (B) with respect to 100 pts.mass of a polyacetal resin (A), and has a melting point of 167.0°C or higher and 173.0°C or lower and a melt flow index (MI) of 0.1 g/10 min or more and 10.0 g/10 min or less. The polyacetal resin (A) is a polyacetal copolymer, an average particle diameter of the boron nitride (B) is 1 μm or more and 15 μm or less, and a ratio of particles of the boron nitride (B) having a particle diameter of 10 μm or less in the boron nitride (B) is 35.0% or more.SELECTED DRAWING: None
Inventors:
TOKI MAKOTO
KOMORI ATSUSHI
KOMORI ATSUSHI
Application Number:
JP2019209105A
Publication Date:
May 27, 2021
Filing Date:
November 19, 2019
Export Citation:
Assignee:
ASAHI KASEI CORP
International Classes:
C08L59/04; C08K3/38
Attorney, Agent or Firm:
Kenji Sugimura
Mitsutsugu Sugimura
Koichiro God
Mitsutsugu Sugimura
Koichiro God