发明授权
US4886611A Hydrocarbon compositions containing polyolefin graft polymers 失效
含有聚烯烃接枝聚合物的烃组合物

Hydrocarbon compositions containing polyolefin graft polymers
摘要:
Fuel oils and lubricants of improved properties contain ethylene-propylene copolymers bearing units derived from N-vinyl pyrrolidone and phenothiazine.
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