VISCOSITY INDEX ENHANCER COMPOSITION, ADDITIVE COMPOSITION FOR LUBRICATING OIL, AND LUBRICATING OIL COMPOSITION
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United States of America
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Issued Date -
Feb 20, 2025
app pub date -
Dec 23, 2022
filing date -
Dec 23, 2022
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Abstract
A viscosity index improver composition which has an excellent viscosity index improving effect. A viscosity index improver composition which includes a poly(meth)acrylate (A) including a constituent unit (Y) derived from a monomer (y) having a diol functional group, and a poly(meth)acrylate (B) including a constituent unit (Z) derived from a monomer (z) having a boronic acid ester.
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