Invention Grant
- Patent Title: Polyacetal resin composition and sliding member
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Application No.: US15510381Application Date: 2015-06-11
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Publication No.: US10683413B2Publication Date: 2020-06-16
- Inventor: Akihide Shimoda
- Applicant: Polyplastics Co., Ltd.
- Applicant Address: JP Tokyo
- Assignee: POLYPLASTICS CO., LTD.
- Current Assignee: POLYPLASTICS CO., LTD.
- Current Assignee Address: JP Tokyo
- Agency: Knobbe, Martens, Olson & Bear, LLP
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@5b319dee
- International Application: PCT/JP2015/066878 WO 20150611
- International Announcement: WO2016/051881 WO 20160407
- Main IPC: C08L59/00
- IPC: C08L59/00 ; C08L71/02 ; F16C33/20 ; C08L23/26 ; C08L23/02 ; C08L51/06 ; C08L59/04 ; C08K3/26

Abstract:
A polyoxymethylene (POM) resin composition which is used for a resin molded article having an excellent sliding characteristic and wear resistance property and also having an excellent surface property and peeling resistance property. This POM resin composition contains: (A) 100 parts by mass of a POM resin; (B) 0.01-1 parts by mass of a hindered phenolic antioxidant; (C) 0.05-1 parts by mass inclusive of a nitrogen-containing compound; (D) 0.5-10 parts by mass of a modified olefin polymer which is an olefin polymer that has been modified by an unsaturated carboxylic acid or the like; (E) 0.01-5 parts by mass of an alkylene glycol polymer that has a primary or secondary amino group and a number average molecular weight of 400-500,000; (F) 0.1-20 parts by mass of calcium carbonate which has a BET specific surface area of 15 m2/g or less, has a mean particle size of 50-200 nm or less, is surface-untreated, and is substantially cubic; (G) 0.1-10 parts by mass of a partial ester of a divalent to tetravalent alcohol; and (H) 0.1-10 parts by mass of an α-olefin oligomer.
Public/Granted literature
- US20170306141A1 POLYACETAL RESIN COMPOSITION AND SLIDING MEMBER Public/Granted day:2017-10-26
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