B29B7/92

MOLDING MATERIAL, MOLDED ARTICLE, AND PRODUCTION METHOD FOR MOLDING MATERIAL
20230173562 · 2023-06-08 ·

Provided is a molding material for a material of a molded article including: a biomass material obtained from a water-containing organic matter; and a thermoplastic or a thermosetting resin, the biomass material having a moisture content of 20% or less, a bacterial count of mesophilic aerobic bacteria of 10.sup.5/g or less, and a maximum exothermic peak by a differential thermal analysis method of 300° C. or higher.

POLYOLEFIN RESIN COMPOSITION

A polyolefin resin composition containing: 100 parts by weight of a resin mixture of (A) 1-60% by weight of cellulose nanofibers having an average thickness of 10-200 nm and (B) 99-40% by weight of a polyolefin resin, and (C) 0.2-30 parts by weight of a terpene phenolic compound; the cellulose nanofibers having been obtained by circulating a pulp slurry in a polysaccharide slurry supply path 3 via chamber (2), and on the other hand, circulating an originally polysaccharide-free slurry in a second fluid medium supply path (4).

Molded body and method for producing cellulose-nanofiber-containing composition

Provided herein is a cellulose nanofiber that can be easily combined with a compound having a reactive double-bond group and that can provide a molded article which contains only a small amount of an uncured material that acts as a plasticizer in a molded product, using a simple producing method that does not require any process involving solvent displacement or solvent removal. A high-strength resin composition or molded body prepared by using the cellulose nanofiber is also provided. In refining cellulose in the presence of a compound having a reactive double bond and a hydroxyl value of 200 KOHmg/g or more, the cellulose has a moisture content of 4 to 25 parts by mass with respect to 100 parts by mass of the amount of the cellulose converted on the assumption that the percentage moisture of the cellulose is 0%.

FIBER-REINFORCED COMPOSITE EXTRUSION WITH ENHANCED PROPERTIES

Embodiments herein include compositions, extruded articles, and methods of making the same. In an embodiment, an extruded article is included. The extruded article can include an extruded segment comprising a first composition. The first composition can include a polymer resin, an impact modifier and fibers. In some embodiments, the extruded segment can have a surface exhibiting an average depression depth of less than 0.0045 inches (0.1143 mm). Other embodiments are also included herein.

APPARATUS FOR MANUFACTURING ADVANCED POLYMER COMPOSITE INCLUDING TORPEDO ASSEMBLY
20220305714 · 2022-09-29 · ·

According to the present disclosure, an apparatus for manufacturing advanced polymer composite including torpedo assembly includes a housing 16 supplied with a molten resin, a torpedo assembly 20 arranged on the inside of the housing 16 and having multiple resin channels 18 and 34 formed on a surface thereof in a longitudinal direction such that the molten resin flows, a dispersion portion 40 rotatably arranged on an outer circumferential surface of the torpedo assembly 20 and configured to uniformly disperse the molten resin and an additive by stirring the molten resin, a drive unit 50 for rotating the torpedo assembly 20 and the dispersion portion 40, multiple vent rings 22 in close contact with the outside of the dispersion portion 40 to discharge gas, and a head 24.

Natural fiber plastic composite precursor material for compounding, method for preparing thereof and method for preparing natural fiber plastic composite product
20220235186 · 2022-07-28 ·

The present disclosure relates to a natural fiber plastic composite precursor material comprising 80-95% (w/w) cellulosic fibers having an average fiber length less than 1 mm, 3-7% (w/w) coupling agent, 0-7% (w/w) thermoplastic polymer, and 0-1% (w/w) lubricant and/or wax, wherein the material is in form of pellets having a bulk density in the range of 300-700 g/l, and to a method for preparing thereof. The present disclosure also relates to a method for preparing a natural fiber plastic composite product.

CELLULOSE FIBER COMPOSITE RECYCLED RESIN AND PRODUCTION METHOD THEREFOR
20220204739 · 2022-06-30 · ·

A cellulose fiber composite recycled resin having excellent strength, and a method for producing the same. The cellulose fiber composite recycled resin contains a recycled resin and a mixture of fibrous cellulose, at least one of resin powders and resin pellets, and at least one substance selected from the group consisting of phthalic acid, phthalates, derivatives of phthalic acid, and derivatives of phthalates. For producing this composite resin, at least one of resin powders and resin pellets are added to a slurry of cellulose fibers to obtain a first mixture, a recycled resin is mixed into the first mixture to obtain a second mixture, and the second mixture is kneaded, wherein part or all of the cellulose fibers are fine fibers.

PROCESS FOR MAKING COMPOUNDS USING WASTES OF NATURAL ORIGIN AND FIBRES OF PLANT OR ANIMAL ORIGIN
20220193955 · 2022-06-23 · ·

The invention concerns a process for making compounds using wastes of natural origin and fibres of plant or animal origin, wherein wastes of natural origin, fibres of plant origin, as well as wastes of animal origin, composing the so-called “charge”, are mixed with agglomerating plastic materials, the so-called “carriers”, and with agglomerating additives in order to form a mixture, the so-called “blend”, which is transformed into a compound, the “compound”, used for making semi-finished products. Said process occurs five sequenced steps that goes from the preparation of the “charge” and the “blend” to the selection of the “carriers” and agglomerating additives till the process of the “blend” to obtain the “compound” and finally to the process of the “compound” to obtain a semi-finished product. According to the invention the initial “charge” is submitted to a sanitization treatment, based on the principle of advanced oxidation, obtained by applying the technological process referred to as “Non-thermal plasma” or

“NTP”, where the so-called “non-thermal discharges with dielectric-barrier method” or “DBDs” are used, in order to strongly reduce bacterial charges, until removal thereof, decompose the volatile organic substances (VOCs) and remove smells.

PROCESS FOR MAKING COMPOUNDS USING WASTES OF NATURAL ORIGIN AND FIBRES OF PLANT OR ANIMAL ORIGIN
20220193955 · 2022-06-23 · ·

The invention concerns a process for making compounds using wastes of natural origin and fibres of plant or animal origin, wherein wastes of natural origin, fibres of plant origin, as well as wastes of animal origin, composing the so-called “charge”, are mixed with agglomerating plastic materials, the so-called “carriers”, and with agglomerating additives in order to form a mixture, the so-called “blend”, which is transformed into a compound, the “compound”, used for making semi-finished products. Said process occurs five sequenced steps that goes from the preparation of the “charge” and the “blend” to the selection of the “carriers” and agglomerating additives till the process of the “blend” to obtain the “compound” and finally to the process of the “compound” to obtain a semi-finished product. According to the invention the initial “charge” is submitted to a sanitization treatment, based on the principle of advanced oxidation, obtained by applying the technological process referred to as “Non-thermal plasma” or

“NTP”, where the so-called “non-thermal discharges with dielectric-barrier method” or “DBDs” are used, in order to strongly reduce bacterial charges, until removal thereof, decompose the volatile organic substances (VOCs) and remove smells.

LOW PRESSURE EXTRUDER, EQUIPMENT AND METHOD FOR MANUFACTURING A LOW-DENSITY PLASTIC COMPOSITE MATERIAL, AND THE LOW-DENSITY PLASTIC COMPOSITE MATERIAL
20220152875 · 2022-05-19 ·

The invention relates to a low pressure extruder (3) for manufacturing a low density plastic composite material, characterized in that, the volume between the cylinder and the screw per unit length is not decreased along the direction from the hopper to the die in order that the mixture is extruded at low pressure in the melted state out of the cylinder of the extruder; the die is heated by the heater to maintain the melted state of the material in order not to create resistance to the flow in the process of pushing the material mixture out of the cylinder of the extruder. Furthermore, the present invention provides a method and equipment for manufacturing this material.