A method for producing a poly(3-hydroxybutyrate) resin-containing composition for melt processing includes: heating a material containing a poly(3-hydroxybutyrate) resin to a temperature equal to or higher than a melting point peak temperature in differential scanning calorimetry analysis of the poly(3-hydroxybutyrate) resin and equal to or lower than a melting point peak end temperature in the differential scanning calorimetry analysis of the poly(3-hydroxybutyrate) resin, wherein the difference between the melting point peak temperature and the melting point peak end temperature of the poly(3-hydroxybutyrate) resin is 10 C. or more; and extruding the heated material to obtain a composition for melt processing that has a new crystallization peak at a temperature higher than the melting point peak temperature.

A liquid crystal polymer powder that contains fibrous particles including a liquid crystal polymer, and the melt viscosity of the liquid crystal polymer powder is 15 to 77 Pa.Math.s.

Disclosed herein are polyamide substrates that may be reliably used in additive manufacturing to produce a wide variety of 3D printed articles, protective films or membranes. The polyamide substrate can be formed via thiol-ene click chemistry reactions between diallyl amide or other alkene monomers, reacted with thiol monomers, that can be activated by photoirradiation at relatively low temperatures (e.g., about 80 C.). As a result, the polyamide substrates disclosed herein may be cured using a simple, energy efficient curing process that allows for additive manufacturing where the produced 3d printed article exhibits increased toughness rather than being brittle as are most 3d printed articles.

A polyester resin contains a polymer of an acid component (A) and an alcohol component (B). The component (A) contains 80 mol % or more of a 2,6-naphthalenedicarboxylic acid component with respect to a total amount of the component (A). The component (B) contains at least two types selected from the group consisting of 1,4-butanediol, 1,4-cyclohexanedimethanol, and ethylene glycol. The content of the at least one type of the component (B) is 80 mol % or more with respect to a total amount of the component (B).

A resin composition that includes: a resin component having a liquid crystal polymer as a primary component thereof; and an inorganic filler, wherein a specific surface area of the inorganic filler is 30 m.sup.2/cm.sup.3 or less, a maximum diameter of the inorganic filler is 100 m or less, and a content of the inorganic filler is 0.1% by volume to 60% by volume.

A camera module is provided. The camera module comprises a lens unit mounted in a housing unit, an actuator unit configured to allow relative movement of the lens unit with respect to the housing unit, and a damper disposed between the housing unit and the lens unit. The damper comprises a polymer composition that includes a liquid crystalline polymer and that exhibits a Shore D hardness of about 75 or less as determined in accordance with ISO 868:2003.

A phase difference film formed of a resin containing a polymer having crystallizability, wherein: a coefficient of variation CV(Re) of an in-plane retardation of the phase difference film at a measurement wavelength of 590 nm is 1.0% or less.

A laminate comprising a fibrous substrate and a conductive layer positioned adjacent to the fibrous substrate is provided. The fibrous substrate is formed from fibers that include a polymer composition. The polymer composition contains a liquid crystalline polymer, and it has a melting temperature of from about 300 C. to about 400 C. and a dissipation factor of about 0.005 or less at a frequency of 10 GHz.

A fiber that comprises a polymer composition is provided. The polymer composition includes a liquid crystalline polymer containing specific monomeric constituents within a specific molar concentration. The polymer composition has a melting temperature of from about 300 C. to about 400 C. as determined in accordance with ISO 11357-3:2018.

The present invention relates to semi-crystalline copolyamides and to moulding compounds manufactured from same that contain at least one filler, and optionally additives in addition to the semi-crystalline copolyamide. The invention equally relates to mouldings manufactured from same.