A process of manufacturing a polyolefin drag reducing agent comprises: injecting a catalyst and a drag reducing agent forming component comprising (i) at least one olefin monomer, or (ii) at least one olefin oligomer, or a combination of (i) and (ii) into a temporary container comprising a container material, sealing the temporary container; allowing the drag reducing agent forming component to polymerize in the sealed temporary container to form the polyolefin drag reducing agent; and at least partially dissolving the container material. The container material includes 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 glycol, a polysaccharide or its derivative, or a combination comprising at least one of the foregoing, provided that when the container material comprises polyvinyl acetate or polyvinyl alcohol, the temporary container is coated or has two or more layers.

A process of manufacturing a polyolefin drag reducing agent comprises: injecting a catalyst and a drag reducing agent forming component comprising (i) at least one olefin monomer, or (ii) at least one olefin oligomer, or a combination of (i) and (ii) into a temporary container comprising a container material, sealing the temporary container; allowing the drag reducing agent forming component to polymerize in the sealed temporary container to form the polyolefin drag reducing agent; and at least partially dissolving the container material. The container material includes 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 glycol, a polysaccharide or its derivative, or a combination comprising at least one of the foregoing, provided that when the container material comprises polyvinyl acetate or polyvinyl alcohol, the temporary container is coated or has two or more layers.

A process to form a polymer composition comprising an ethylene-based polymer and a functionalized ethylene-based polymer, said process comprising the steps described herein, which include passing a polymer melt through at least one static mixer, and wherein the functionalized ethylene-based polymer, in melt form, is introduced into the polymer melt, before the polymer melt enters the static mixer.

The use of ultrasound or acoustics applied at a level below that which causes cavitation to control the energy balance between particles and the liquid phase in a metastable liquid.

The use of ultrasound or acoustics applied at a level below that which causes cavitation to control the energy balance between particles and the liquid phase in a metastable liquid.

Provided by the present invention is a production method of a polyvinyl alcohol resin in which a content of organic volatiles has been reduced while inhibiting fusing of the resin to itself. The production method includes a step of washing, with a washing liquid, a polyvinyl alcohol obtained by saponifying a polyvinyl ester, wherein the washing liquid contains 50 to 98 parts by mass of methyl acetate, 1 to 49 parts by mass of methanol, and 1 to 10 parts by mass of water with respect to 100 parts by mass being a total of methyl acetate, methanol, and water.

A process for producing water-absorbing polymer particles, wherein surface postcrosslinked water-absorbing polymer particles are remoisturized and delivered pneumatically, and wherein the time between remoisturization and pneumatic delivery is less than one hour.

A process for producing water-absorbing polymer particles, wherein surface postcrosslinked water-absorbing polymer particles are remoisturized and delivered pneumatically, and wherein the time between remoisturization and pneumatic delivery is less than one hour.

A process for producing water-absorbing polymer particles, wherein surface postcrosslinked water-absorbing polymer particles are remoisturized and delivered pneumatically, and wherein the time between remoisturization and pneumatic delivery is less than one hour.

A method for producing a (meth)acrylic resin composition, the method comprising continuously feeding a polymerizable monomer component comprising 50 to 100% by mass of methyl methacrylate, 0 to 20% by mass of an acrylic acid alkyl ester and 0 to 30% by mass of an additional monomer, a chain transfer agent, and a radical polymerization initiator to a tank reactor; conducting bulk polymerization of the polymerizable monomer component at a polymerization conversion ratio of 40 to 70% by mass to obtain a liquid containing a (meth)acrylic resin; continuously feeding the liquid to a vented extruder to separate a volatile component from the (meth)acrylic resin; continuously feeding the separated volatile component to a distillation column to obtain a fraction containing methyl methacrylate; adding a polymerization inhibitor to the fraction; and reusing the fraction which contains the polymerization inhibitor as part of the polymerizable monomer component.