A composition containing a melt-moldable fluororesin having a 1% decomposition temperature of 300° C. or higher and a thermotropic liquid crystal polymer, 90 mol % or more of all repeating units of the thermotropic liquid crystal polymer having an aromatic structure. The fluororesin is contained in an amount of 99.99 to 97% by mass and the thermotropic liquid crystal polymer is contained in an amount of 0.01 to 3% by mass relative to the composition. Also disclosed is an injection-molded article and a molding aid for injection molding fluororesin.

A method for welding at least two parts including a thermoplastic material and having respective surfaces to be welded, including: inserting an insert between the surfaces to be welded of the two parts; generating heat via the insert; wherein the insert moves in relation to the parts to be welded in a welding direction. Also, an installation adapted for implementation of this method.

A method for welding at least two parts including a thermoplastic material and having respective surfaces to be welded, including: inserting an insert between the surfaces to be welded of the two parts; generating heat via the insert; wherein the insert moves in relation to the parts to be welded in a welding direction. Also, an installation adapted for implementation of this method.

The present invention relates to a polyvinyl acetal resin film, comprising a polyvinyl acetal resin material, wherein at least one surface has a relative diffuse reflectance of 3% or higher at a wavelength of 550 nm, an absolute difference between the relative diffuse reflectance of one surface at a wavelength of 550 nm and that of the other surface at a wavelength of 550 nm is 0.5% or larger, and the amount of a plasticizer in the polyvinyl acetal resin film is 0 to 20% by mass based on a total mass of the polyvinyl acetal resin film.

A method for producing a surface covering system comprising magnetically receptive layers affixed to surface covering units and magnetized underlayments for use in securing surface covering units to supporting surfaces. The system includes isotropic magnetized floor covering units and anisotropic magnetized underlays for securing surface covering units. The system includes a set of formulations including ferrites and rare earth materials, oils and plasticizer and binding agents to optimize performance to meet design and application criteria.

The invention first relates to a method for welding at least two parts comprising a thermoplastic material and having respective surfaces to be welded, comprising: inserting an insert between the surfaces to be welded of the two parts; generating heat via said insert; wherein the insert moves in relation to the parts to be welded in a welding direction. The invention also relates to an installation adapted for implementation of this method.

The invention first relates to a method for welding at least two parts comprising a thermoplastic material and having respective surfaces to be welded, comprising: inserting an insert between the surfaces to be welded of the two parts; generating heat via said insert; wherein the insert moves in relation to the parts to be welded in a welding direction. The invention also relates to an installation adapted for implementation of this method.

A method of manufacturing an automobile emblem is disclosed, which is for manufacturing an emblem that is to be disposed on a front surface of an automobile and represents a particular shape. A method of manufacturing an automobile emblem according to an embodiment of the invention can provide an automobile emblem that has a metallic texture and a silver luster without hindering the reception of waves for an automobile front radar.

A mechanical assembly for securing a first sheet to a second sheet includes a first projection having a first sidewall and a first top wall. The first sidewall extends from the first top wall at a first acute angle. The first sidewall includes a first top end and a first bottom end. A first discontinuity is defined in the first sidewall between the first top end and the first bottom end. A first base wall extends from the first bottom end. The first base wall extends generally parallel to the first top wall.

A mechanical assembly for securing a first sheet to a second sheet includes a first projection having a first sidewall and a first top wall. The first sidewall extends from the first top wall at a first acute angle. The first sidewall includes a first top end and a first bottom end. A first discontinuity is defined in the first sidewall between the first top end and the first bottom end. A first base wall extends from the first bottom end. The first base wall extends generally parallel to the first top wall.