Invention Grant
- Patent Title: Saponified ethylene-vinyl ester-based copolymer pellet and producing method therefor
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Application No.: US15761641Application Date: 2016-10-11
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Publication No.: US10370468B2Publication Date: 2019-08-06
- Inventor: Shinichi Hori , Nobuyuki Yamamoto , Takuya Nakajima
- Applicant: THE NIPPON SYNTHETIC CHEMICAL INDUSTRY CO., LTD.
- Applicant Address: JP Tokyo
- Assignee: MITSUBISHI CHEMICAL CORPORATION
- Current Assignee: MITSUBISHI CHEMICAL CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Greenblum & Bernstein, P.L.C.
- Priority: JP2015-211442 20151028
- International Application: PCT/JP2016/080059 WO 20161011
- International Announcement: WO2017/073307 WO 20170504
- Main IPC: C08F210/02
- IPC: C08F210/02 ; B29B9/16 ; C08L29/04 ; B29K23/00
Abstract:
Provided is EVOH resin pellet capable of suppressing the occurrence of fish eye even in a resultant monolayer film, and the method for producing the same. The EVOH resin pellet contains a boron compound and the boron amount in a surface portion of the pellet is 1.7 ppm or less. After the EVOH resin pellet is made to contain the boron compound, the EVOH resin pellet is rinsed with a mixture of water and alcohol so that the amount of the boron compound in a surface portion can be reduced.
Public/Granted literature
- US20180346620A1 SAPONIFIED ETHYLENE-VINYL ESTER-BASED COPOLYMER PELLET AND PRODUCING METHOD THEREFOR Public/Granted day:2018-12-06
Information query
