C08J2321/02

SYSTEM AND TECHNIQUE FOR INVERTING POLYMERS UNDER ULTRA-HIGH SHEAR

Systems and techniques can be used to invert an emulsion polymer under ultra-high shear. In some examples, a method for inverting an emulsion involves introducing the emulsion into a process liquid to form a dilute emulsion. The emulsion may be defined by a continuous phase and a discontinuous phase containing a polymer, with the polymer being soluble in the process liquid but the continuous phase being immiscible in the process liquid. A fluid pressurization device can pressurize the dilute emulsion to form a pressurized dilute emulsion. Thereafter, the pressurized dilute emulsion can be passed through a multi-channel flow restrictor, such as a capillary bundle, thereby generating a shear force for dispersing and inverting the emulsion in the process liquid.

Expandable graphite flame retardant coating for polyurethane and latex foam

A flexible foam composition includes a flexible foam body having a surface, which flexible foam is polyurethane and/or latex flexible foam, and an expandable graphite layer on the surface or within the foam surface adjacent to the surface. The flexible foam composition with the expandable graphite layer imparts improved flame retardant properties to the composition.

Rubber pellet treatment

Rubber pellets are coated with an anti-tack material. The anti-tack material may be comprised of a metallic stearate, such as magnesium stearate. The coated rubber pellets are loaded on to a rotational conveyance mechanism that rotates at a speed and radial amount to provide an interaction time between the rubber pellets and the anti-tack material. The coated rubber pellets may then be dried in a centrifuge dryer having a plurality of angled fins extending from a rotational shaft.

Thermally conductive nanomaterial coatings on flexible foam or fabrics

A flexible cellular foam or fabric product is coated with a coating including highly thermally conductive nanomaterials. The highly thermally conductive nanomaterials may be carbon nanomaterials, metallic, or non-metallic solids. The carbon nanomaterials may include, but are not necessarily limited to, carbon nanotubes and graphene nanoplatelets. The highly thermally conductive nanomaterials may include but are not limited to nano-sized solids that may include graphite flakes, for example. When coated on a surface of flexible foam, the presence of nanomaterials may impart greater thermal effusivity, greater thermal conductivity, and/or a combination of these improvements. The flexible foam product may be polyurethane foam, latex foam, polyether polyurethane foam, viscoelastic foam, high resilient foam, polyester polyurethane foam, foamed polyethylene, foamed polypropylene, expanded polystyrene, foamed silicone, melamine foam, among others.

METHOD OF MANUFACTURING LATEX RUBBER ARTICLES
20230145646 · 2023-05-11 ·

A method of manufacturing a latex rubber article comprises providing a former wherein at least a part of the former comprises a mould surface that forms the shape of the latex rubber article, and applying liquid latex to the mould surface using an applicator that is configured to apply the liquid latex to an applicator area that is smaller than the mould surface. The method further comprises providing relative movement between the applicator and the former to produce a latex coating that covers the mould surface, curing the latex coating on the former to form the latex rubber article, and removing the latex rubber article from the former.

Expandable Graphite Flame Retardant Layer For Polyurethane And Latex Foam

A flexible foam composition includes a flexible foam body having a surface, which flexible foam is polyurethane and/or latex flexible foam, and an expandable graphite layer on the surface or within the foam surface adjacent to the surface. The flexible foam composition with the expandable graphite layer imparts improved flame retardant properties to the composition.

Methods for promoting production of viable seeds from apomictic guayule plants

Described herein are methods for producing guayule seeds, guayule plants, and products generated therefrom. More specifically, the disclosure provides methods for the production of viable seeds from apomictic guayule plants, seeds produced by such methods, plants grown from such seeds, plant parts, biomass, and biomaterials derived therefrom.

Thermally Conductive Nanomaterial Coatings On Flexible Foam Or Fabrics

A flexible cellular foam or fabric product is coated with a coating including highly thermally conductive nanomaterials. The highly thermally conductive nanomaterials may be carbon nanomaterials, metallic, or non-metallic solids. The carbon nanomaterials may include, but are not necessarily limited to, carbon nanotubes and graphene nanoplatelets. The highly thermally conductive nanomaterials may include but are not limited to nano-sized solids that may include graphite flakes, for example. When coated on a surface of flexible foam, the presence of nanomaterials may impart greater thermal effusivity, greater thermal conductivity, and/or a combination of these improvements. The flexible foam product may be polyurethane foam, latex foam, polyether polyurethane foam, viscoelastic foam, high resilient foam, polyester polyurethane foam, foamed polyethylene, foamed polypropylene, expanded polystyrene, foamed silicone, melamine foam, among others.

Modified cellulose nanofiber and rubber composition including the same

The present invention aims to provide a rubber composition having sufficient reinforcement and fatigue resistance even when a large strain is applied thereto, and the present invention is to provide a substituted carboxy group-containing modified cellulose nanofiber wherein at least part thereof has at least any one of a substituent represented by Formula (a): —CONH—R.sup.1 and a substituent represented by Formula (b): —COO—R.sup.1 (in Formulae (a) and (b), R.sup.1 is independently a C.sub.3-30 hydrocarbon having at least one unsaturated bond), and a rubber composition including the same.

METHODS OF MAKING AN ELASTOMER COMPOSITE REINFORCED WITH SILICA AND PRODUCTS CONTAINING SAME

Methods to make a silica elastomer composite with a destabilized dispersion of silica are described, along with silica elastomer composites made from the methods. The advantages achieved with the methods are further described.