Invention Grant
- Patent Title: Blended fluoropolymer compositions
- Patent Title (中): 混合的含氟聚合物组合物
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Application No.: US13296752Application Date: 2011-11-15
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Publication No.: US09074084B2Publication Date: 2015-07-07
- Inventor: Leonard W. Harvey , Michael Coates , Julie K. Wright
- Applicant: Leonard W. Harvey , Michael Coates , Julie K. Wright
- Applicant Address: US PA Elverson
- Assignee: Whitford Corporation
- Current Assignee: Whitford Corporation
- Current Assignee Address: US PA Elverson
- Agency: Faegre Baker Daniels LLP
- Main IPC: C08L27/18
- IPC: C08L27/18 ; C08L27/12 ; C08J3/00 ; C08J3/12 ; C09D5/03 ; C09D127/18 ; C08L29/10 ; C09D127/12 ; C09D129/10

Abstract:
Blended fluoropolymer compositions are provided, in which a liquid dispersion of a first fluoropolymer is blended with a liquid dispersion of a second fluoropolymer. The first fluoropolymer may be polytetrafluoroethylene (PTFE), such as a low molecular weight PTFE (LPTFE) in the form of an aqueous dispersion having a mean particle size of less than 1.0 microns (μm) and a first melt temperature (Tm) of 332° C. or less. The second fluoropolymer may be a melt processable fluoropolymer (MPF), such as methylfluoroalkoxy (MFA), fluorinated ethylene propylene (FEP), or perfluoroalkoxy (PFA), for example, in the form of an aqueous dispersion having a mean particle size of less than 1.0 microns (μm). When the blended fluoropolymer composition is dried, a crystal structure representing a true alloy of the fluoropolymers is formed, having melt characteristics that differ from those of the individual fluoropolymers.
Public/Granted literature
- US20120076944A1 BLENDED FLUOROPOLYMER COMPOSITIONS Public/Granted day:2012-03-29
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