A method for making a polyamide composition, in particular for molding, prepared by mixing a polyamide material, a powder made from airbag scraps, and optionally reinforcing fillers is described. Also described, is a method for recycling used airbags.

A non-carboxylated styrene-butadiene copolymer, preparation method and use thereof are provided. The non-carboxylated styrene-butadiene copolymer is prepared by hot polymerization in the absence of acid monomers and is used in asphalt-based systems such as asphalt emulsions.

The present invention provides a plastic optical fiber comprising a core and a sheath consisting of at least one layer, the plastic optical fiber having a transmission loss of 120 dB/km or less as measured by a 25 m-1 m cutback method under conditions of a wavelength of 525 nm and an excitation of NA=0.45, and satisfying either one of the following conditions when a thickness of the innermost sheath layer is 0.5 μm to 4.5 μm, an amount of foreign matter having a size of 2 μm or greater contained in the innermost sheath layer is 2000/cm.sup.3 or less, or a size X (μm) of foreign matter contained in the innermost sheath layer and an amount Y of the foreign matter (number/cm.sup.3) satisfy formula (1) below: Y≦1200 X e.sup.(−0.067×X) (1). Such optical fibers have a low transmission loss of green light (in particular, light having a wavelength of 525 nm), enabling longer distance communication.

Composites containing one or more synthetic plastics, such as thermoplastics, one or more natural materials, such as plant/tree fibers, and biochar and/or torrefied material are described herein. The composite can contain additional additives, such as reinforcing agents and/or fibers, compatibilizers, etc. The composites have improved mechanical and/or physical properties, such as strength, impact strength, rigidity/modulus, heat deflection temperature, moldability/melt flow index, renewability, and lower cost compared to composites that do not contain the biochar and/or torrefied material. The presence of the biochar and/or torrefied material also serves to remove the odor often associated with natural fibers and other additives.

A method of modifying a biobased feedstock derived from agricultural resources and specifically from the non-distillate products of fermentation-derived renewable fuel and distilled spirit processes. The pyrolytic modification of biobased feedstocks results in materials that are thermally stable and better suited for subsequent melt processing in a polymer matrix.

A method of modifying a biobased feedstock derived from agricultural resources and specifically from the non-distillate products of fermentation-derived renewable fuel and distilled spirit processes. The pyrolytic modification of biobased feedstocks results in materials that are thermally stable and better suited for subsequent melt processing in a polymer matrix.

A polytetrafluoroethylene resin composition comprising 67 to 75 volume %, preferably 69 to 72 volume %, of a polytetrafluoroethylene resin and 33 to 25 volume %, preferably 31 to 28 volume %, of a filler having an average particle diameter of 45 to 80 μm, preferably 50 to 75 μm. The seal ring obtained from the polytetrafluoroethylene resin composition of the present invention can prevent the cut cross-sections of the seal ring abutting portion from being pressed by oil pressure and fixing to each other. Therefore, the seal ring is effectively used as an oil seal ring used as a sealing material applied to vehicle CVTs and power steering devices.

A composite material for producing an extrudate may include: PVC and granules of cereal chaff. The granules of cereal chaff may include spelt, hulls, granules, seed coats and/or stem parts. The cereal may be Pooideae and/or Panicoideae and/or Andropogonoide-ae.

A composite material for producing an extrudate may include: PVC and granules of cereal chaff. The granules of cereal chaff may include spelt, hulls, granules, seed coats and/or stem parts. The cereal may be Pooideae and/or Panicoideae and/or Andropogonoide-ae.

This disclosure aims to provide a tire having excellent braking performance on dry road surface and on wet road surface, and having excellent steering stability. This disclosure is a tire comprising a tread 10, wherein: the tread 10 has a plurality of circumferential grooves extending continuously in a tire circumferential direction C, the circumferential grooves including circumferential main grooves 21a, 21b, 22 with a cross-sectional area in a tire width direction W of 10 mm.sup.2 or more, and a groove width Lb at a 95% groove depth position with a groove depth of a groove bottom as 100% of at least the circumferential groove 21a located on an outermost side when mounted to a vehicle among the circumferential main grooves 21a, 21b, 22 being 25% to 60% with respect to a groove width Lt on a tread surface.