C08J2323/30

Process for Foaming Polyolefin Compositions Using a Modified High Density Polyethylene

The present disclosure provides a foamable composition containing (A) a high density polyethylene (HDPE); (B) a low density polyethylene (LDPE); (C) a peroxide-modified HDPE; and (D) a nucleator. The present disclosure also provides a process for making a foam composition. Additionally, the present disclosure provides a foam formed from a foamable composition, and a cable with an insulation layer containing the foam.

Wax composition comprising linear hydrocarbons, branched hydrocarbons and oxidized hydrocarbons, aqueous dispersion thereof, method to produce such wax composition and dispersion and use thereof as Carnauba wax replacement
11965097 · 2024-04-23 · ·

The invention relates to a wax composition comprising linear hydrocarbons, branched hydrocarbons and oxidized hydrocarbons, wherein the composition is characterized by a congealing point from 68? C. to 110? C., an acid number in the range of 3 to 30 mg KOH/g, a saponification number of 20 to 90 mg KOH/g and a needle penetration at 25? C. of below 15 1/10 mm. The invention further relates to an aqueous dispersion comprising the wax composition and a method of manufacture of both the wax composition and the dispersion. The wax composition can be used to fully or partially substitute Carnauba wax or Candelilla wax.

METHOD FOR MODIFYING POLYMER, METHOD FOR PRODUCING MODIFIED POLYMER USING THE SAME, AND MODIFIED POLYMER

The present invention provides a new method by which polymers can be modified. The present invention provides a method for modifying a polymer including the step of: irradiating a reaction system containing a polymer with light to react the reaction system in a presence of a compound radical, wherein the compound radical is a radical containing one element selected from the group consisting of Group 15 elements and Group 16 elements, and a Group 17 element.

RESIN FOR FOAM MOLDING, FOAM MOLDED ARTICLE, AND METHOD FOR PRODUCING SAME

Provided is a resin for foam molding excellent in foam molding property and low-temperature impact resistance. According to the present invention, provided is a resin for foam molding including a component A, a component B and a component C. The component A is a long-chain branched homopolypropylene, the component B is a long-chain branched block polypropylene, the component C is a polyethylene-based elastomer, and when a total of the components A to C is 100 parts by mass, content of the component A is 20 to 70 parts by mass, content of the component B is 20 to 70 parts by mass, and content of the component C is 1 to 20 parts by mass.

METHOD AND PROCESS ARRANGEMENT FOR PRODUCING HYDROCARBONS

A method and process arrangement for producing hydrocarbons from polymer-based waste in which the polymer-based waste is gasified with steam at low temperature in a gasifier for forming a product mixture, and the temperature is 640-750? C., and the product mixture is supplied from the gasifier to a recovery unit of the hydrocarbons for separating at least one hydrocarbon fraction.

TREATMENT OF EPOXIDIZED UNSATURATED ISOOLEFIN COPOLYMERS

A process for producing a crosslinked polymer involves contacting an epoxidized unsaturated isoolefin copolymer with a catalytic amount of an acid in an absence of a solvent. A process for producing a hydroxylated unsaturated isoolefin copolymer involves contacting an epoxidized unsaturated isoolefin copolymer with a catalytic amount of an acid in an absence of a solvent. A hydroxylated unsaturated isoolefin copolymer having hydroxyl groups in endo configurations may be produced thereby.

Processing of polyethylene-based compositions and products therefrom

A method for producing a low viscosity polyethylene-based composition comprising melting a polyethylene-based composition; decreasing a viscosity of the polyethylene-based composition; and optionally, repeating the melting and the viscosity decreasing steps to form a low viscosity polyethylene-based composition; wherein the melting and viscosity decreasing steps are performed in a continuous process at temperature that is equal to or greater than 350? C., residence time of less than 2 min and the polyethylene-based composition is in the presence of at least one free radical generator.

Polymer compositions having an improved printable surface and related methods
12098255 · 2024-09-24 ·

A composition having a polymer-film composition having a compound having the structure: ##STR00001## wherein: each R is independently selected; each R is a C.sub.1-20 alkyl moiety, C.sub.2-22 alkenyl moiety, C.sub.6-40 cycloalkyl moiety, C.sub.6-40 cycloalkylene moiety, C.sub.2-20 alkyl glycol ether moiety, C.sub.10-C.sub.16 linear alkyl alcohol moiety, or YOH moiety; each Y is a C.sub.2-40 alkylene moiety, C.sub.6-40 cycloalkylene moiety, C.sub.2-20 alkylene glycol ether, or a C.sub.3-40 alkylene lactone; m is an integer ranging from 1 to 100; x is an integer ranging from 2 to 1,000; and the polymer-film composition having an oxidized polymer-film surface.

MECHANOCATALYTIC OXIDATIVE DEPOLYMERIZATION OF PLASTICS
20240309166 · 2024-09-19 ·

An exemplary embodiment of the present disclosure provides a method for depolymerizing a polymer product. The method comprises forming a reaction mixture by combining polymer feedstock with an activating agent and producing an oxidized polymer comprising one or more functional groups comprising an oxygen atom. Also described are systems comprising a vessel having one or more inert or chemically reactive grinding bodies, polymer feedstock, and an activating agent, wherein the system is configured to mix the one or more grinding bodies, the polymer feedstock, and activating agent under approximately ambient pressure.

HYDROGEN PEROXIDE PLASMA SURFACE MODIFICATION

The techniques described herein relate to hydrogen peroxide plasma surface modification. In some embodiments, a method includes providing a mixture including hydrogen peroxide vapor from a source, wherein a concentration of the hydrogen peroxide vapor in the mixture is substantially stable over time. The method further includes forming a hydrogen peroxide plasma from the mixture and exposing a material to the hydrogen peroxide plasma in a chamber.