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US 10,654,949 B2Granted
High molecular weight functionalized olefin copolymer quenching agent
AssigneeExxonMobil Chemical Patents Inc.
InventorsJay L. Reimers, Yifeng Hong, John R. Hagadorn
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Abstract
This disclosure describes polymerization processes and processes for quenching polymerization reactions using reactive particulates, such as high molecular weight functionalized olefin copolymers, as quenching agents, typically in solution or bulk polymerization processes.
Claims20
A process for producing a polymer, wherein the process comprises:
- polymerizing a hydrocarbon monomer present in a solvent in the presence of a catalyst system under conditions to obtain a first effluent stream comprising a solution of the polymer and the solvent;
- introducing a quenching agent into the first effluent stream to quench the polymerization reaction, wherein the quenching agent has a molecular weight (Mn) greater than about 2000 g/mol and a hydroxyl value of greater than about 10 mg KOH/g.
A process for quenching a polymerization reaction, wherein the process comprises:
- introducing a quenching agent into a first effluent stream comprising polymer exiting a polymerization zone to quench the polymerization reaction, wherein the quenching agent has a molecular weight greater than about 2000 g/mol and a hydroxyl value of greater than about 10 mg KOH/g.
A process for producing a polymer, wherein the process comprises:
- polymerizing a hydrocarbon monomer dissolved in a solvent in the presence of a catalyst system under conditions to obtain a first effluent stream comprising a solution of the polymer and the solvent;
- and
- introducing a quenching agent into the first effluent stream to quench the polymerization reaction, wherein the quenching agent is selected from the group consisting of ethylene acrylic acid copolymer, ethylene maleic anhydride copolymer, ethylene vinyl acetate copolymer, ethylene vinyl alcohol copolymer, ethylene vinyl chloride copolymer, ethylene methyl acrylate, ethylene ethyl acrylate copolymer, and combinations thereof.
Dependencies are inferred from the claim text.