Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Patent
1984-10-18
1985-11-05
Michl, Paul R.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
524555, 524801, C08F 2054
Patent
active
045515131
ABSTRACT:
New copolymers soluble in water and aqueous acids are disclosed comprising in a statistical distribution in the macromolecule at least 5% by weight of entities containing a formylamino functionality and at least 10% by weight of entities containing an amino carbonyl functionality, which are stable in high concentrations of Bronsted-Lowery acids and can be used as friction reducers in the stimulation of oil or gas wells.
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Dawson Jeffery C.
Engelhardt Friedrich
Kuhlein Klaus
Reed Anthony R.
Riegel Ulrich
Cassella Aktiengesellschaft
Dresser Industries Inc.
Michl Paul R.
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