Water soluble block polymers

Details Water soluble block polymers Water soluble block polymers

C - Chemistry, Metallurgy

08

F

400/2055, 134/50

C08F 228/02 (2006.01) C08F 8/36 (2006.01) C08F 297/02 (2006.01)

Patent

CA 1215383

ABSTRACT OF THF DISCLOSURE The present invention relates to viscosification agents for water and oil solubilization agents which are diblock or triblock polymers based upon t-butylstyrene/styrene groups. The diblock polymers have the general formula: Image wherein m is 0.5 to 15.0 mole %, and the triblock polymers have the general formula: Image wherein m is 0.25 to 7.5 mole %. In these compounds, n is 85.0 to 99.5 mole %, and M is selected from the group consisting of hydrogen, iron, aluminum, lead, and Groups IA, IIA, IB and IIB of the Periodic Table of Elements. PAT 9891-1

444125

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