B29C48/88

FUNCTIONALIZATION OF FOREIGN MATTERS IN LYOCELL-METHODS AND MOLDED BODIES THEREOF

A regenerated cellulosic molded body of cellulose and at least a part of at least one foreign matter, and is produced by supplying a starting material which comprises cellulose and at least one foreign matter, transferring at least a part of the starting material with at least a part of the at least one foreign matter into a spinning mass which additionally contains a solvent for solving at least a part of the cellulose of the starting material in the solvent, and extruding the spinning mass to the molded body, and subsequently precipitating in a spinning bath.

FILM HAVING LIGHT TRANSMITTANCE AND MANUFACTURING METHOD THEREOF

The present disclosure relates to a film having light transmittance and a manufacturing method thereof. The film includes a Polyurethane (PU) surface layer, and a thermoplastic elastomer layer. The thermoplastic elastomer layer is disposed under the PU surface layer. The thermoplastic elastomer layer includes color masterbatch material. The color masterbatch material is between 0.1-1% weight. By controlling the amount of color masterbatch material in the thermoplastic elastomer layer, the film of the present disclosure has real color appearance and good light transmittance.

Process for enhancing the melt strength of propylene-based polymer compositions

Disclosed is a process for preparation of a propylene-based polymer composition involving the steps of: (a) mixing a propylene-based polymer and a peroxydicarbonate in a mixing device, wherein the mixing takes place at a temperature of ≤30° C., wherein the peroxydicarbonate is introduced into the mixing process in a dry form; (b) keeping the mixed composition at a temperature of ≤30° C.; (c) feeding the mixed composition into a melt extruder; (d) homogenizing the mixed composition at a temperature where the propylene-based polymer is in solid state during an average residence time of ≥6.0 and ≤30.0 seconds; (e) further homogenizing the mixed composition at a temperature at which the propylene-based polymer is in the molten state; and (f) extruding the homogenized material from a die outlet of the melt extruder followed by cooling and solidification; wherein the steps (a) through (f) are conducted in that order.

Heat Shrink Tube and Method for Forming Same

Described is a peelable heat shrink tube composed of a fluororesin and having a determination coefficient calculated from [Equation 1] below using an elastic modulus ratio (%) of more than 0, but 0.90 or less:

[00001] Determination coefficient = ( correlation coefficient ) 2 = [ ( covariance ) ( standard deviation of X ) ( standard deviation of Y ) ] 2 [ Equation 1 ]

where X, Y and covariance represent the following: X: Proportion of the position of each point, where the elastic modulus was measured, from the interior of the tube Y: Elastic modulus ratio in each region Covariance: Average of the product of deviations of X and Y.

Apparatus and method to adjust the thickness profile in the production of blown films
11478971 · 2022-10-25 · ·

Disclosed is an apparatus for the production of a blown tubular film (FT). The apparatus includes an independent device for the localized thickness adjustment at the strips adjacent to the folding edges resulting from the flattening of the tubular film (FT) by means of adjustment elements formed in angular sectors of limited extension symmetrically arranged 180° apart. The independent device for the localized thickness adjustment being a volumetric type device having a rotating ring that performs a rotating adjustment of the flow rate of a cooling air stream which takes into account the angular offset resulting from the operational parameters of the apparatus.

COMPOSITE FILM FOR COATING STEEL PIPE AND METHOD OF MANUFACTURING SAME

Proposed is a composite film including a first film layer attached to an upper surface of a steel member, a second film layer positioned on the first film layer, and a mesh film layer positioned on the second film layer and having a mesh structure. A portion of the mesh film layer is embedded into the second film layer during a heat compression process when the composite film is manufactured. The composite film improves the water resistance, chemical resistance, abrasion resistance, and durability of a steel member when the steel member is coated with the composite film.

Optical sheet forming device and optical sheet forming method

An extruding unit, a forming roll unit and a thick portion forming mechanism are provided. The extruding unit has an ejecting slit which ejects sheet-shaped molten resin. The ejecting slit includes a standard gap portion and an enlarged gap portion. The standard gap portion is formed as a gap having a constant size. The enlarged gap portion is formed as a gap larger than the standard gap portion in a position corresponding to a thick portion. The thick portion forming mechanism forms one or several thick portions which are thicker than other portion, in the sheet-shaped molten resin continuously in the extrusion direction.

Gas-permeable barrier film and method of making the gas-permeable barrier film

Gas-permeable barrier films include a polyolefin and an inorganic filler dispersed in the polyolefin. Methods for forming polymeric films and articles of manufacture prepared therefrom are described.

Manufacturing method and manufacturing apparatus for laminate
11597195 · 2023-03-07 · ·

A manufacturing method including a first conveying step of conveying the sheet in a lateral or oblique lateral direction along a sheet pass line below the discharge port; a receiving step of receiving a tip part of the film raw material with the sheet on the sheet pass line, the tip part being discharged and hanging down from the discharge port; a second conveying step of conveying the sheet and the film raw material after the tip part overlaps the sheet on the sheet pass line, the second conveying step conveying the sheet and the film raw material in a mutually overlapping state along the sheet pass line; and an introducing step of introducing the sheet and the film raw material in the mutually overlapping state to the joining part from the sheet pass line.

ARTICLES, DIES AND METHODS OF MAKING THE SAME
20230068396 · 2023-03-02 ·

Articles (100, 200, 300) comprising first (101, 201, 301) and second layers (102, 202, 302) each having first and second opposed major surfaces and between the first and second layers a series of first walls (110, 210, 310) having aspect ratios between 1.5 and 5 providing a series of microchannels, and methods for making the same. Embodiment of coextruded articles described herein are useful, for example, in cushioning applications where high levels of compression are desired.