Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...
Patent
1981-07-07
1983-01-25
Griffin, Ronald W.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
At least one aryl ring which is part of a fused or bridged...
264117, 524506, 524546, 524406, 524439, 528486, 528499, C08K 501, C08K 502, C08L 2718, C08L 4304
Patent
active
043704360
ABSTRACT:
A process for preparing a filled agglomerated polytetrafluoroethylene molding powder having a high flowability by agitating finely-divided polytetrafluoroethylene particles and a filler in an aqueous medium. While agitating a hydrophilic filler treated with an aminosilane compound in water in the presence of a higher fatty acid and/or an anionic surface active agent, the polytetrafluoroethylene particles and a water-immiscible organic liquid are added to water in that order, whereby most of the filler used can be uniformly incorporated into the agglomerated product without causing separation into the aqueous medium.
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Kawachi Shoji
Nakamura Yukiharu
Daikin Kogyo Co. Ltd.
Griffin Ronald W.
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