Invention Grant
- Patent Title: Modified polytetrafluoroethylene, molded product, and method for producing stretched porous material
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Application No.: US16819749Application Date: 2020-03-16
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Publication No.: US11884755B2Publication Date: 2024-01-30
- Inventor: Shinya Higuchi , Shiro Ebata , Takehiro Kose
- Applicant: AGC Inc.
- Applicant Address: JP Chiyoda-ku
- Assignee: AGC Inc.
- Current Assignee: AGC Inc.
- Current Assignee Address: JP Chiyoda-ku
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP 17187990 2017.09.28
- Main IPC: C08F14/26
- IPC: C08F14/26 ; B29C48/00 ; C08F214/26 ; C08J5/18 ; B29K27/18
Abstract:
To provide a modified polytetrafluoroethylene excellent in breaking strength. The modified polytetrafluoroethylene comprises a polymer having units based on tetrafluoroethylene and a polymer having units based on a monomer represented by formula (1), wherein the content of the units based on a monomer represented by formula (1) is from 10 to 500 mass ppm, to all units in the modified polytetrafluoroethylene, and the standard specific gravity is from 2.155 to 2.175,
CH2═CR1-L-R2 Formula (1):
wherein R1 represents a hydrogen atom or an alkyl group, L represents a single bond, —CO—O—*, —O—CO—*, or —O—, * represents a bonding position to R2, and R2 represents a hydrogen atom, an alkyl group, or a nitrile group.
CH2═CR1-L-R2 Formula (1):
wherein R1 represents a hydrogen atom or an alkyl group, L represents a single bond, —CO—O—*, —O—CO—*, or —O—, * represents a bonding position to R2, and R2 represents a hydrogen atom, an alkyl group, or a nitrile group.
Public/Granted literature
- US20200216583A1 MODIFIED POLYTETRAFLUOROETHYLENE, MOLDED PRODUCT, AND METHOD FOR PRODUCING STRETCHED POROUS MATERIAL Public/Granted day:2020-07-09
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