AQUEOUS FLUOROPOLYMER DISPERSION COMPRISING A MELT PROCESSIBLE FLUOROPOLYMER AND HAVING A REDUCED AMOUNT OF FLUORINATED SURFACTANT
Application 1656/CHENP/2005 published 2007-07-27, filed 2005-07-20
The present invention provides an aqueous fluoropolymer dispersion comprising a melt processible fluoropolymer in an amount of at least 25% by weight based on the weight of the aqueous fluoropolymer dispersion and a fluorinated surfactant having a molecular weight of not more than lOOOg/mol in an amount of not more than 100 ppm, preferably less than 50 ppm, more preferably less than 25 ppm and most preferably less than 10 ppm based on the weight of fluoropolymer solids or being free of said fluorinated surfactant. The aqueous fluoropolymer dispersion has a conductivity of at least 200 [iS/cm, preferably at least 500 (aS/cm and more preferably at least 1000 nS/cm.
Applicant
1)3M INNOVATIVE PROPERTIES COMPANY
:3M CENTER, P O BOX 33427, SAINT PAUL, MN 55133-3427, USA U.S.A.
Inventor
1)EPSCH, REBEKKA
International Info
Classification: C09D 127/12
Publication Number: WO 2004/067656 A1
Application Date: 2003-12-01
Priority Information
03100126.6 EUROPEAN UNION 2003-01-22