Radical polymerization in sealed containers

Patent metadata

Field	Value
Publication number	US-12168702-B2
Application number	US-202017603985-A
Country	US
Kind code	B2
Filing date	Dec 18, 2020
Priority date	Dec 18, 2020
Publication date	Dec 17, 2024
Grant date	Dec 17, 2024

Abstract

A process of manufacturing a polymer product includes continuously forming a temporary container; introducing an unsaturated monomer component and a radical polymerization component into the temporary container; sealing the temporary container to form a sealed temporary container; and allowing the unsaturated monomer component to polymerize in the sealed temporary container to form the polymer product via a radical polymerization reaction.

First claim

What is claimed is:

1. A process of manufacturing a polymer product, the process characterized by:
continuously forming a temporary container;
introducing an unsaturated monomer component and a radical polymerization component into the temporary container;
sealing the temporary container to form a sealed temporary container; and
allowing the unsaturated monomer component to polymerize in the sealed temporary container to form the polymer product via a radical polymerization reaction wherein the temporary container has two or more layers or the temporary container has an inner surface and an opposing outer surface, and a coating is disposed on at least one of the inner and outer surfaces of the temporary container, the coating comprising a wax, a silicone, or a combination comprising at least one of the foregoing.

2. The process of claim 1 , wherein the sealed temporary container has a volume of about 1 milliliter to about 10 liters.

3. The process of claim 1 , wherein the sealed temporary container has a wall thickness of about 1 micron to about 2,000 microns.

4. The process of claim 1 , wherein the temporary container is formed from a container material comprising a polyethylene, a polypropylene, an ethylene propylene copolymer, a polystyrene, a polylactic acid, a polyamide, a polyester, a polystyrene, an ethylene vinyl acetate copolymer, an ethylene vinyl alcohol copolymer, a polyvinylpyrrolidone, an ethylene vinylpyrrolidone copolymer, a vinylpyrrolidone vinyl acetate copolymer, a polyvinyl acetate, a polyvinyl alcohol, a polyethylene oxide, a polyethylene glycol, polyvinylidene chloride, a polysaccharide or its derivative, or a combination comprising at least one of the foregoing.

5. The process of claim 1 , wherein the radical polymerization reaction is initiated by heat, electromagnetic energy, or a combination comprising at least one of the foregoing.

6. The process of claim 1 , further characterized by placing the sealed temporary container in a heat transfer fluid or a circulated gas environment at −100° C. to 200° C. for about 0.001 hour to about 200 hours to allow the unsaturated monomer component to polymerize in the sealed temporary container forming the polymer product.

7. The process of claim 1 , wherein
the radical polymerization reaction is an atom transfer radical polymerization; and
the radical polymerization component comprises an atom transfer radical polymerization initiator, and an optional component comprising a metal catalyst, a ligand, a photocatalyst, a reducing agent, a solvent, or a combination comprising at least one of the foregoing.

8. The process of claim 1 , wherein the radical polymerization reaction is a reversible addition fragmentation chain transfer (RAFT) polymerization; and the radical polymerization component comprises a RAFT initiator, a RAFT agent, and optionally a solvent.

9. The process of claim 1 , wherein the radical polymerization is a nitroxide mediated polymerization; and the radical polymerization component comprises a nitroxide, a nitroxide mediated polymerization initiator, and optionally a solvent.

10. The process of claim 1 , wherein the radical polymerization is a free-radical polymerization, the radical polymerization component comprises a free-radical initiator, and an optional component comprising a solvent, a chain transfer agent, or a combination thereof; and the process comprises initiating the polymerization reaction via heat or electromagnetic energy.

11. The process of claim 1 , wherein the temporary container is at least partially removed by dissolving the temporary container with a solvent comprising methanol, propanol, hexanol, octanol, hexylene glycol, water, dichloromethane (DCM), tetrahydrofuran (THF), ethyl acetate, acetone, dimethylformamide (DMF), acetonitrile (MeCN), dimethyl sulfoxide (DMSO), nitromethane, propylene carbonate, ammonia, formic acid, acetic acid, or a combination comprising at least one of the foregoing.

12. The process of claim 11 , wherein the container material is dissolved in the presence of an acid catalyst or a base catalyst.

13. The process of claim 1 , further characterized by grinding the polymer product to produce a particulate polymer.

14. The process of claim 1 comprising:
continuously forming the temporary container;
introducing the unsaturated monomer component and the radical polymerization component;
sealing the temporary container to form a sealed temporary container;
placing the sealed temporary container in a heat transfer fluid or a circulated gas environment at −100 to 200° C. for about 0.001 to about 200 hours;
initializing the radical polymerization reaction;
allowing the unsaturated monomer component to polymerize in the sealed temporary container forming the polymer product;
removing the sealed temporary container from the heat transfer fluid or the circulated gas environment; and
grinding, pelletizing, or dissolving the polymer product.

Assignees

• Baker Hughes Oilfield Operations Llc

Inventors

• Zou Jian
• Jakubowski Wojciech J

Classifications

• C08F120/18

  with acrylic or methacrylic acids · CPC title

• C08F220/1818

  C13or longer chain (meth)acrylate, e.g. stearyl (meth)acrylate · CPC title

• C08F2438/01

  Atom Transfer Radical Polymerization [ATRP] or reverse ATRP · CPC title

• C08F2/38

  Polymerisation using regulators, e.g. chain terminating agents {, e.g. telomerisation} · CPC title

• C08F120/12 Primary

  of monohydric alcohols or phenols · CPC title