B29B7/007

Cellulose-Containing Resin Composition and Cellulosic Ingredient

The present disclosure relates to a resin composition that exhibits satisfactory flow properties and mechanical properties, to a cellulose formulation that is used to produce the resin composition, and to resin pellets and a molded resin formed by the resin composition.

Rigid High-Gloss Wear-Resistant and Scratch-Resistant Flooring
20230118389 · 2023-04-20 ·

The present disclosure provides a rigid high-gloss wear-resistant and scratch-resistant flooring. The flooring includes a surface layer, an intermediate Spc layer, and a decorative layer that are laminated; where the surface layer is prepared by combining a melamine glue and a color film; the intermediate Spc layer is prepared by mixing polyvinyl chloride resin, calcium carbonate, a plasticizer, and a stabilizer; and the decorative layer is prepared by a high-temperature material. The rigid high-gloss wear-resistant and scratch-resistant flooring is prepared by the melamine glue and the special color film, has an intermediate Spc layer, and has the decorative layer on a back side. The flooring is prepared by three different layers through a high temperature and a high pressure. The flooring has a surface that is highly wear-resistant, extremely scratch-resistant, cigarette burning-resistant, and non-deformable, and is suitable for use in various public places, with various styles, diverse specifications, and stability.

Continuous mixing for highly viscous materials
11628597 · 2023-04-18 · ·

A method includes feeding a heated polymer additive at a first temperature into a continuous mixer at a first feed rate. The method includes feeding a heated abrasive solid material at a second temperature into the continuous mixer at a second feed rate. The heated abrasive solid material and the heated polymer additive are mixed in the continuous mixer to form a first mixture.

PACKAGING POLYMERS
20220325146 · 2022-10-13 ·

A packaging material including a polymeric film surrounding a plastic mass form material. In embodiments, methods include packaging sticky plastic mass form polymers within a polymeric film to prevent agglomeration. Processes include the use of a polymeric film composition that is compatible with the core plastic mass form. The polymeric film can be applied to the plastic mass form through continuous coextrusion, as a film through a hot melt form, fill, and seal process, or as a sealed film bag for inclusion of cooled and coated or uncoated solid sticky plastic material shapes.

Preparation of bimodal rubber, thermoplastic vulcanizates, and articles made therefrom

Pellet-stable olefinic copolymer bimodal rubber is made using parallel reactors, with one reactor synthesizing higher molecular weight (MW) rubber with dual catalysts, with an improved molecular weight split ratio and an improved composition distribution of the moderate and ultra-high MW components, while another reactor synthesizes random isotactic polypropylene copolymer (RCP). The effluents are reactor-blended and result in pellet-stable bimodal rubber (P-SBR), which may be pelletized. When making thermoplastic vulcanizates (TPVs) with P-SBR, the need to granulate rubber bales and subsequently use talc, clay, or other anti-agglomeration agents to prevent granulated rubber crumbs from agglomerating are eliminated. TPVs made with P-SBR have vulcanized rubber particles that are smaller and more uniform in size, resulting in TPVs with higher particle counts and more thermoplastic “ligaments” between the particles, with such ligaments being made stronger by the added RCP. Such thus-produced TPVs have a lower hysteresis and flexural modulus, and better elastic properties.

THERMOPLASTIC RESIN COMPOSITION AND MOLDED ARTICLE THEREBY

A thermoplastic resin composition and a molded article including the same can include 100 parts by weight of a base resin including 10 to 50% by weight of an acrylate-aromatic vinyl compound-vinyl cyanide compound graft copolymer (A-1) containing acrylate rubber having an average particle diameter of 0.3 to 0.5 μm, 5 to 40% by weight of an acrylate-aromatic vinyl compound-vinyl cyanide compound graft copolymer (A-2) containing acrylate rubber having an average particle diameter of 0.05 μm or more and less than 0.3 μm, and 20 to 65% by weight of an aromatic vinyl polymer (B), and 0.5 to 12 parts by weight of a polyamide (C). The thermoplastic resin composition can have a solvent resistance of 15 days or more.

A BIODEGRADABLE BIOCOMPOSITE AND A PROCESS FOR ITS PREPARATION

The present invention relates to biodegradable composites based on blends of a thermoplastic polymer material with cellulosic materials, useful for several industrial and packaging applications, in particular for the manufacture of biodegradable films and articles of complex shape, having improved mechanical properties, oxygen barrier properties, biodegradation and heat resistance; and to a process for the manufacture of these biodegradable composites.

LIQUID CRYSTAL POLYESTER RESIN PELLETS, AND PRODUCTION METHOD THEREFOR, AND PRODUCTION METHOD FOR MOLDED ARTICLE
20220315696 · 2022-10-06 ·

The present invention relates to liquid crystal polyester resin pellets containing a thermoplastic resin comprising a liquid crystal polyester, and a fibrous filler, in which the pellets contain the fibrous filler in the amount of equal to or greater than 1 part by mass and smaller than 120 parts by mass with respect to 100 parts by mass of the thermoplastic resin, and a length-weighted average fiber length of the fibrous filler is equal to or greater than 4 mm and smaller than 50 mm.

Resin Molded Body Production Method
20220315714 · 2022-10-06 · ·

Provided is a resin molded body production method that enables production of a resin molded body in which mechanical strength is good, anisotropy of physical properties is low, and little warpage is developed. This production method is for a resin molded body containing a thermoplastic resin (A) and a cellulose nanofiber (B), the production method including: a step for preparing a main supply material (a1) containing the thermoplastic resin (A) and the cellulose nanofiber (B) and an auxiliary supply material (a2) that is a product of melting treatment of the main supply material (a1); a resin composition formation step for obtaining a resin composition (b) by melting and mixing of the main supply material (a1) and the auxiliary supply material (a2); and a step for obtaining the resin molded body by molding the resin composition (b).

Method of and apparatus for injecting a liquid formulation into a molten polymer

Injector (14) for injecting a liquid formulation into a molten polymer includes outlet (21) at one end and, at its other end, is arranged to be connected to upstream conduit (25) via a coupling housing (26) so that liquid formulation can pass from conduit into the injector, and further includes an elongate conduit (27) in which an elongate pin is slideably arranged being capable of expelling all liquid formulation from conduit. To address the risk the outlet could become blocked in use, whilst avoiding the need to depressurize and/or stop the flow or polymer in extruder (19), the injection apparatus includes a spool (34) which is rotatably mounted within wall (35) of the extruder and is arranged to be rotated about an axis which extends substantially perpendicularly to the elongate extent of the extruder through which a polymer stream (18) flows. The spool may be moved between a first configuration and a second configuration wherein a flow path is interrupted, but wherein molten polymer continues to flow in said polymer flow conduit.