Patent classifications
C08K7/10
Liquid crystal polyester composition, method for producing liquid crystal polyester composition, and molded article
A liquid crystal polyester composition contains: a liquid crystal polyester in an amount of 100 parts by mass as well as a fibrous filler and a plate-like filler in an amount of not less than 65 parts by mass and not more than 100 parts by mass in total. The fibrous filler in the composition has a number average fiber diameter of not less than 5 μm and not more than 15 μm and a number average fiber length of more than 200 μm and less than 400 μm. The mass ratio of the fibrous filler to the plate-like filler in the composition is not less than 3 and not more than 15. The flow starting temperature of the composition is not lower than 250° C. and lower than 314° C.
Liquid crystal polyester composition, method for producing liquid crystal polyester composition, and molded article
A liquid crystal polyester composition contains: a liquid crystal polyester in an amount of 100 parts by mass as well as a fibrous filler and a plate-like filler in an amount of not less than 65 parts by mass and not more than 100 parts by mass in total. The fibrous filler in the composition has a number average fiber diameter of not less than 5 μm and not more than 15 μm and a number average fiber length of more than 200 μm and less than 400 μm. The mass ratio of the fibrous filler to the plate-like filler in the composition is not less than 3 and not more than 15. The flow starting temperature of the composition is not lower than 250° C. and lower than 314° C.
3-D printed fluoropolymer structures
The invention relates to fluoropolymer filament for use in 3-D printing, and 3-D printed fluoropolymer articles having low warpage, excellent chemical resistance, excellent water resistance, flame resistance, and good mechanical integrity. Additionally, the articles of the invention have good shelf life without the need for special packaging. In particular, the invention relates to filament, 3-D printed polyvinylidene fluoride (PVDF) articles, and in particular material extrusion 3-D printing. The articles may be formed from PVDF homopolymers, copolymers, such as KYNAR® resins from Arkema, as well as polymer blends with appropriately defined low shear melt viscosity. The PVDF may optionally be a filled PVDF formulation. The physical properties of the 3-D printed articles can be maximized and warpage minimized by optimizing processing parameters.
3-D printed fluoropolymer structures
The invention relates to fluoropolymer filament for use in 3-D printing, and 3-D printed fluoropolymer articles having low warpage, excellent chemical resistance, excellent water resistance, flame resistance, and good mechanical integrity. Additionally, the articles of the invention have good shelf life without the need for special packaging. In particular, the invention relates to filament, 3-D printed polyvinylidene fluoride (PVDF) articles, and in particular material extrusion 3-D printing. The articles may be formed from PVDF homopolymers, copolymers, such as KYNAR® resins from Arkema, as well as polymer blends with appropriately defined low shear melt viscosity. The PVDF may optionally be a filled PVDF formulation. The physical properties of the 3-D printed articles can be maximized and warpage minimized by optimizing processing parameters.
Camera module
A camera module containing a molded part (e.g., generally planar base, lens barrel mounted on the base, etc.) that is formed form a polymer composition is provided. The polymer composition includes a liquid crystalline polymer and inorganic particles that have a hardness value of about 2.5 or more based on the Mohs hardness scale.
Camera module
A camera module containing a molded part (e.g., generally planar base, lens barrel mounted on the base, etc.) that is formed form a polymer composition is provided. The polymer composition includes a liquid crystalline polymer and inorganic particles that have a hardness value of about 2.5 or more based on the Mohs hardness scale.
Microbeads comprising silicate fibres with needle-shaped morphology of nanometric size, preparation thereof, elastomeric compositions and tyres for vehicles comprising them
Microbeads are described, comprising silica fibres with needle-shaped morphology of nanometric size, characterised by reduced dustiness and good dispersibility in elastomeric materials, a process for the preparation thereof and the use thereof in the production of vehicle tyres.
Microbeads comprising silicate fibres with needle-shaped morphology of nanometric size, preparation thereof, elastomeric compositions and tyres for vehicles comprising them
Microbeads are described, comprising silica fibres with needle-shaped morphology of nanometric size, characterised by reduced dustiness and good dispersibility in elastomeric materials, a process for the preparation thereof and the use thereof in the production of vehicle tyres.
Thermoplastic compositions having high stiffness and methods of making them
An extruded thermoplastic composition includes: (a) from about 20 wt % to about 75 wt % of a ceramic fiber component; (b) from about 15 wt % to about 70 wt % of a polybutylene terephthalate (PBT) component including a high molecular weight PBT and a low molecular weight PBT; (c) from about 5 wt % to about 23 wt % of a polycarbonate component; and (d) from about 1 wt % to about 10 wt % of a compatibilizer component. Methods of making the extruded thermoplastic composition are also described.
Thermoplastic compositions having high stiffness and methods of making them
An extruded thermoplastic composition includes: (a) from about 20 wt % to about 75 wt % of a ceramic fiber component; (b) from about 15 wt % to about 70 wt % of a polybutylene terephthalate (PBT) component including a high molecular weight PBT and a low molecular weight PBT; (c) from about 5 wt % to about 23 wt % of a polycarbonate component; and (d) from about 1 wt % to about 10 wt % of a compatibilizer component. Methods of making the extruded thermoplastic composition are also described.