A method for manufacturing a fired body of a fluororesin includes a mixing step of mixing a fluororesin pulverized after firing and an unfired fluororesin powder aggregated after emulsion polymerization at a rate based on predetermined strength to produce a component to be fired, and a firing step of firing the component to be fired produced.

A method of reclaiming used tennis balls and transforming the material reclaimed from the tennis balls into soles for footwear. This multi-step process requires acquiring used tennis balls, grinding the tennis balls into ground rubber bits (usable elements) and tennis ball “fuzz” (unusable elements). The rubber and fuzz are passed through a screen which allows the rubber bits to exit the screen but retains the fuzz. The rubber is then mixed with an H.sub.2O and Polyurethane mixture to form a rubber mixture. This mixture is then pressed into a shape using a mold, cured, and then used to manufacture footwear.

The present invention relates to new compositions for bipolar plates and to methods for manufacturing said compositions. More specifically, the invention relates to a method for manufacturing a composition, comprising the following steps: mixing a thermoplastic polymer in the molten state with a first conductive charge in order to obtain a conductive thermoplastic polymer; grinding said conductive thermoplastic polymer in order to reduce it to a powder; mixing the conductive thermoplastic polymer powder with a second conductive charge.

The present invention relates to new compositions for bipolar plates and to methods for manufacturing said compositions. More specifically, the invention relates to a method for manufacturing a composition, comprising the following steps: mixing a thermoplastic polymer in the molten state with a first conductive charge in order to obtain a conductive thermoplastic polymer; grinding said conductive thermoplastic polymer in order to reduce it to a powder; mixing the conductive thermoplastic polymer powder with a second conductive charge.

An efficient preparation method for a novel octenyl succinic anhydride granular starch ester is provided. The preparation method includes: taking an ionic liquid composite solution as a medium and generating an octenyl succinic anhydride granular starch ester through an esterification reaction between starch and octenyl succinic anhydride, wherein the ionic liquid is a 1-ethyl-3-methylimidazolium acetate ionic liquid. The preparation method for an octenyl succinic anhydride starch ester firstly applies an ionic liquid aqueous solution system to preparation of an octenyl succinic anhydride granular starch ester of different types of starch, the synthesis efficiency of the octenyl succinic anhydride starch ester is effectively improved, a granular structure of a final product is remained, and functional properties of the final product are improved.

A composition comprises a polyglycolide or a polyglycolide copolymer and a filler. The polyglycolide is prepared from glycolide by ring-opening polymerization. The composition may have a tensile modulus greater than 5,800 MPa. The polyglycolide copolymer may have a weight-average molecular weight (Mw) in the range of 10,000-1,000,000 and a ratio of a weight-average molecular weight to a number-average molecular weight (Mw/Mn) in the range of 1.0 to 10.0. The polyglycolide copolymer may have a melt index (MFR) in the range of 0.1 to 1000 g/10 min. Also provided is a process for preparing the composition.

A composition comprises a polyglycolide or a polyglycolide copolymer and a filler. The polyglycolide is prepared from glycolide by ring-opening polymerization. The composition may have a tensile modulus greater than 5,800 MPa. The polyglycolide copolymer may have a weight-average molecular weight (Mw) in the range of 10,000-1,000,000 and a ratio of a weight-average molecular weight to a number-average molecular weight (Mw/Mn) in the range of 1.0 to 10.0. The polyglycolide copolymer may have a melt index (MFR) in the range of 0.1 to 1000 g/10 min. Also provided is a process for preparing the composition.

A powder composition suitable for use in selective laser sintering for printing an object. The powder composition includes a first fraction including a plurality of polyaryletherketone (PAEK) particles having a mean diameter less than 30 microns, a second fraction having a plurality of polyaryletherketone (PAEK) particles having a mean diameter greater than 30 microns, and a third fraction having a plurality of carbon fibers. The first fraction and the second fraction are formed by an air classification separation performed on a pulverized powder. After the separation, the first fraction, the second fraction, and the third fraction are blended in a high intensity mixer. The powder composition when used in selective laser sinter results in parts with increased tensile strength and reduced surface roughness, among other improvements, as compared to similar powders omitting the first fraction. The PAEK may include polyetherketoneketone (PEKK).

A powder composition suitable for use in selective laser sintering for printing an object. The powder composition includes a first fraction including a plurality of polyaryletherketone (PAEK) particles having a mean diameter less than 30 microns, a second fraction having a plurality of polyaryletherketone (PAEK) particles having a mean diameter greater than 30 microns, and a third fraction having a plurality of carbon fibers. The first fraction and the second fraction are formed by an air classification separation performed on a pulverized powder. After the separation, the first fraction, the second fraction, and the third fraction are blended in a high intensity mixer. The powder composition when used in selective laser sinter results in parts with increased tensile strength and reduced surface roughness, among other improvements, as compared to similar powders omitting the first fraction. The PAEK may include polyetherketoneketone (PEKK).

The method for preparing a super absorbent polymer according to the present disclosure reduces the generating amount of a fine powder while realizing the same particle size distribution in the process of pulverizing the dried polymer, thereby reducing the load of the fine powder reassembly, drying, pulverizing and classifying steps.