The present disclosure relates to a process and/or method for producing a polymer dispersion by free-radically initiated emulsion polymerization of radically polymerizable ethylenically unsaturated monomers within a polymerization reactor. The polymer dispersion obtained is transferred to a post-treatment reactor and is post-treated therein. The polymer dispersion within the post-treatment reactor is conveyed, simultaneously to the post-treatment, to a circuit for filtration and analysis and is then subsequently fed back into the post-treatment reactor.

Polymer compositions may include a polymer matrix containing a polyolefin, one or more polymer particles dispersed in the polymer matrix, wherein the one or more polymer particles include a polar polymer selectively crosslinked with a crosslinking agent, and wherein the one or more polymer particles has an average particle size of up to 200 μm. Processes of preparing a polymer composition may include mixing a polyolefin, a polar polymer, and a crosslinking agent; and selectively crosslinking the polar polymer with the crosslinking agent in the presence of the polyolefin. Methods may include increasing stress cracking resistance of a polyolefin by mixing a polar polymer with the polyolefin; and selectively crosslinking the polar polymer in the presence of the polyolefin with a crosslinking agent to form crosslinked polar polymer particles dispersed in the polyolefin.

Polymer compositions may include a polymer matrix containing a polyolefin, one or more polymer particles dispersed in the polymer matrix, wherein the one or more polymer particles include a polar polymer selectively crosslinked with a crosslinking agent, and wherein the one or more polymer particles has an average particle size of up to 200 μm. Processes of preparing a polymer composition may include mixing a polyolefin, a polar polymer, and a crosslinking agent; and selectively crosslinking the polar polymer with the crosslinking agent in the presence of the polyolefin. Methods may include increasing stress cracking resistance of a polyolefin by mixing a polar polymer with the polyolefin; and selectively crosslinking the polar polymer in the presence of the polyolefin with a crosslinking agent to form crosslinked polar polymer particles dispersed in the polyolefin.

Polymer compositions may include a polymer matrix containing a polyolefin, one or more polymer particles dispersed in the polymer matrix, wherein the one or more polymer particles include a polar polymer selectively crosslinked with a crosslinking agent, and wherein the one or more polymer particles has an average particle size of up to 200 μm. Processes of preparing a polymer composition may include mixing a polyolefin, a polar polymer, and a crosslinking agent; and selectively crosslinking the polar polymer with the crosslinking agent in the presence of the polyolefin. Methods may include increasing stress cracking resistance of a polyolefin by mixing a polar polymer with the polyolefin; and selectively crosslinking the polar polymer in the presence of the polyolefin with a crosslinking agent to form crosslinked polar polymer particles dispersed in the polyolefin.

An electrophotographic device equipped with a negatively-charged laminated electrophotographic photoreceptor that can be charged by a scorotron charging method, and includes a conductive substrate, and a charge generation layer and a charge transport layer sequentially provided on the conductive substrate, wherein the charge generation layer contains a charge generation material and a resin binder that is a poly(vinyl butyral) resin binder, and the charge transport layer contains a charge transport material that is either or both of stilbene compounds represented by Formula (1) and Formula (2), a binder resin, and an oxidation inhibitor that is tribenzylamine represented by Formula 3, wherein the conductive substrate is cylindrical, the electrophotographic photoreceptor has a difference between a maximum value and a minimum value of a surface potential in a circumferential direction, after exposure to ozone at an exposure dose of 100 ppm.Math.h, that is 12 V or less.

An electrophotographic device equipped with a negatively-charged laminated electrophotographic photoreceptor that can be charged by a scorotron charging method, and includes a conductive substrate, and a charge generation layer and a charge transport layer sequentially provided on the conductive substrate, wherein the charge generation layer contains a charge generation material and a resin binder that is a poly(vinyl butyral) resin binder, and the charge transport layer contains a charge transport material that is either or both of stilbene compounds represented by Formula (1) and Formula (2), a binder resin, and an oxidation inhibitor that is tribenzylamine represented by Formula 3, wherein the conductive substrate is cylindrical, the electrophotographic photoreceptor has a difference between a maximum value and a minimum value of a surface potential in a circumferential direction, after exposure to ozone at an exposure dose of 100 ppm.Math.h, that is 12 V or less.

Provided is a composition for forming a coating film directly on the skin by an electrostatic spray, the composition being capable of forming a coating film having excellent skin compatibility, adhesion, and scratch resistance, having a good feel, and being easy to peel. A composition for forming a coating film, for forming a coating film composed of fibers directly on the skin by an electrostatic spray, the composition comprising the following Components (a), (b), (c), and (d): (a) a polymer having a coating film forming ability (b) one or more volatile substances selected from the group consisting of an alcohol and a ketone (c) a plasticizer (d) a feel modifier other than Component (c).

Provided is a composition for forming a coating film directly on the skin by an electrostatic spray, the composition being capable of forming a coating film having excellent skin compatibility, adhesion, and scratch resistance, having a good feel, and being easy to peel. A composition for forming a coating film, for forming a coating film composed of fibers directly on the skin by an electrostatic spray, the composition comprising the following Components (a), (b), (c), and (d): (a) a polymer having a coating film forming ability (b) one or more volatile substances selected from the group consisting of an alcohol and a ketone (c) a plasticizer (d) a feel modifier other than Component (c).

A polyacetal resin composition includes: in addition to a polyacetal resin as a principal component, 1.5 to 7% by mass of an ethylene-propylene-diene rubber; 0.5 to 3% by mass of a saponified ethylene-vinyl acetate copolymer; and 0.05 to 0.3% by mass of an ethylene--olefin copolymer.

A polyacetal resin composition includes: in addition to a polyacetal resin as a principal component, 1.5 to 7% by mass of an ethylene-propylene-diene rubber; 0.5 to 3% by mass of a saponified ethylene-vinyl acetate copolymer; and 0.05 to 0.3% by mass of an ethylene--olefin copolymer.