Invention Grant
- Patent Title: Aqueous fluoropolymer dispersion
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Application No.: US15331639Application Date: 2016-10-21
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Publication No.: US10093775B2Publication Date: 2018-10-09
- Inventor: Nobuhiko Tsuda , Hiromichi Momose , Toshirou Miura
- Applicant: DAIKIN INDUSTRIES, LTD.
- Applicant Address: JP Osaka
- Assignee: DAIKIN INDUSTRIES, LTD.
- Current Assignee: DAIKIN INDUSTRIES, LTD.
- Current Assignee Address: JP Osaka
- Agency: Sughrue Mion, PLLC
- Priority: JP2012-072241 20120327
- Main IPC: C08J3/07
- IPC: C08J3/07 ; C08L27/18 ; C08K5/41 ; C08K5/06 ; C08L71/02

Abstract:
The present invention aims to provide an aqueous dispersion that contains particles of a fluoropolymer at high concentrations and has a less variable pH, and in which aggregates are less likely to be generated even after the aqueous dispersion has been stored for a long time. The present invention relates to an aqueous dispersion, including: particles of a fluoropolymer having an average primary particle size of 0.1 to 0.5 μm in an amount of 50 to 70% by mass; a nonionic surfactant in an amount of 2 to 10% by mass based on the amount of the fluoropolymer; and ammonium lauryl sulfate in an amount of 0.0001 to 1% by mass based on the amount of the fluoropolymer, wherein an amount of a fluorine-containing anionic surfactant is less than 10 ppm.
Public/Granted literature
- US20170037195A1 AQUEOUS FLUOROPOLYMER DISPERSION Public/Granted day:2017-02-09
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