C - Chemistry – Metallurgy – 08 – K
Patent
C - Chemistry, Metallurgy
08
K
400/5024, 400/59
C08K 3/22 (2006.01) C03C 25/10 (2006.01) C04B 35/22 (2006.01) C08J 3/02 (2006.01) C08J 3/03 (2006.01) C08K 3/28 (2006.01) C08K 3/32 (2006.01) C08K 5/09 (2006.01) C08K 7/10 (2006.01) C08L 27/18 (2006.01) C09D 127/18 (2006.01)
Patent
CA 1120168
ABSTRACT OF THE DISCLOSURE Heretofore, the only practical way known to decrease the viscosity of an ionically thickened tetrafluoroethylene polymer dispersion has been by diluting it with water. This decreases the solids level, which can have an undesirable effect on subsequent processing. It has now been discovered that if the tetrafluoroethylene polymer dispersion contains a sodium phosphate in which the ratio of Na2O to P2O5 is between 1:1 and 3:1, the viscosity of the dispersion can be decreased by adding selected inorganic electroytes.
309855
E. I. Du Pont de Nemours And Company
Mccallum Brooks & Co.
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