Disclosed is a preparation method for a polysiloxane powder filler. The method comprises: providing polysiloxane which contains at least 60 wt % of T unit, wherein T unit is equal to R.sub.1SiO.sub.3-, R.sub.1 is a hydrogen atom or an independently selected organic group comprising 1-18 carbon atoms; and performing heat treatment on the polysiloxane under inert gas atmosphere or vacuum conditions, wherein the heat treatment temperature is 250 to 750 degrees, such that silicon hydroxyl groups in the polysiloxane are condensed to obtain a polysiloxane powder filler having a true density greater than or equal to 1.33 g/cm.sup.3 and more preferably greater than or equal to 1.34 g/cm.sup.3. The polysiloxane powder filler obtained by the described preparation method has low inductivity, low inductivity loss and low radioactivity; and can be used for semiconductor packaging materials, circuit boards and intermediate semi-finished products thereof, and semi-cured sheets or copper clad laminates of high-frequency high-speed circuit boards.

The present invention relates to a charge transporting semi-conducting material comprising: a) optionally at least one electrical dopant, and b) at least one cross-linked charge-transporting polymer comprising 1,2,3-triazole cross-linking units, a method for its preparation and a semiconducting device comprising the charge transporting semi-conducting material.

A polysiloxane that has a fast polymerization reaction rate and good storage stability is provided. Alternatively, a silicon-containing monomer mixture as a raw material of the polysiloxane, a resin composition, a photosensitive resin composition, a cured film, or a patterned cured film containing the polysiloxane are provided. Alternatively, the present invention provides a production method for a resin composition, a photosensitive resin composition, a cured film, or a patterned cured film containing the polysiloxane. A mixture is provided including a first monomer containing silicon represented by the following general formula (X); and a second monomer containing silicon represented by the following general formula (Y). In the case where A is set to a contained amount of the first monomer containing silicon and B is set to a contained amount of the second monomer containing silicon, the following relationship is satisfied.

[00001]$\text{B}/\left(\text{A + B}\right)\text{>}\text{0}\text{.04}$

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A hybrid hydrogel carrier for high-salinity wastewater treatment and a preparation method thereof are disclosed. The hybrid hydrogel carrier includes a functional microorganism and a conductive hydrogel carrier, wherein the functional microorganism is a halotolerant species; the conductive hydrogel carrier is a compatible conductive hybrid hydrogel, and magnetic triiron tetraoxide (Fe.sub.3O.sub.4) particles and a compatible substance are uniformly distributed on the surface and inside. The preparation method includes dissolving an aniline solution and a phytic acid solution in a polyvinyl alcohol solution, and cooling the mixed solution to obtain solution I; dispersing a microbial solution, the compatible substance and the Fe.sub.3O.sub.4 particles into the solution I to obtain solution II; dissolving ammonium persulfate in deionized water to prepare an ammonium persulfate solution, after cooling the solution, mixing quickly with the solution II to obtain solution III, then freezing and thawing the solution III repeatedly to obtain the hybrid hydrogel carrier.

An article of footwear includes an upper and a midsole coupled with the upper. The midsole includes at least a portion of a solid resilin material comprising a cross-linked recombinant resilin and a polar nonaqueous solvent.

The invention relates to a process for producing long-term color stable superabsorbent polymer particles, comprising polymerization of a monomer solution, drying the resulting polymer gel, optionally grinding and classifying the resulting dried polymer gel and thermally surface post-crosslinking and cooling the resulting polymer particles, wherein a thermal surface post-cross-linker and hydrogen peroxide are added to the polymer particles prior to the thermal surface post-crosslinking.

The rubber composition comprises at least one resin based: (A1) on at least one aromatic compound comprising at least one aromatic ring bearing at least two functional groups, one of these functional groups being a hydroxymethyl functional group and the other being an aldehyde functional group or a hydroxymethyl functional group; and (A2) on at least one phenolic compound chosen from (A21) at least one aromatic polyphenol comprising at least one aromatic ring bearing at least two hydroxyl functional groups in the meta position with respect to one another, the two positions ortho to at least one of the hydroxyl functional groups being unsubstituted; and/or (A22) at least one aromatic monophenol comprising at least one six-membered aromatic ring bearing a single hydroxyl functional group, the two positions ortho to the hydroxyl functional group being unsubstituted or at least one position ortho to and the position para to the hydroxyl functional group being unsubstituted; and their mixtures.

According to one embodiment, a system for manufacturing a polymethyl methacrylate (PMMA) prepreg includes a mechanism for continuously moving a fabric or mat and a resin application component that applies a methyl methacrylate (MMA) resin to the fabric or mat. The system also includes a press mechanism that presses the fabric or mat during the continuous movement subsequent to the application of the MMA resin to ensure that the MMA resin fully saturates the fabric or mat. The system further includes a curing oven through which the fabric or mat is continuously moved. The curing oven is maintained at a temperature of between 40° C. and 100° C. to polymerize the MMA resin and thereby form PMMA so that upon exiting the curing oven, the fabric or mat is fully impregnated with PMMA.

A method of preparing a vinyl collagen microsphere polyamide fiber composite material includes the following steps: step 1: modifying a collagen with methacrylic anhydride to obtain a vinyl collagen, then emulsifying and cross-linking the vinyl collagen to obtain vinyl collagen microspheres; step 2: treating a polyamide fiber substrate with formaldehyde to obtain a hydroxylated polyamide fiber substrate, treating the hydroxylated polyamide fiber with (3-mercaptopropyl)trimethoxysilane (MPS) to obtain a sulfhydrylated polyamide fiber substrate; and step 3: modifying the sulfhydrylated polyamide fiber substrate with the vinyl collagen microspheres to obtain the vinyl collagen microsphere polyamide fiber composite material.

A method for preparing a high-temperature self-crosslinking aqueous polyurethane dispersion. By using isocyanate (NCO) blocking agent to block part of the NCO, and using the hydroxyalkyl ethylenediamine chain extender in the post-chain extension stage to introduce hydroxyl groups, the polymer macromolecular structure containing both blocked NCO groups and hydroxyl groups can be prepared. The aqueous polyurethane dispersion does not need to mix with other waterborne resins and crosslinkers when applied. A sufficient cross-linking reaction is performed between the NCO released and hydroxyl groups on the polymer macromolecular chain to form a high-density cross-linked structure when curing at 100-150° C. for 20-30 min, thus obtaining a high-performance waterborne coating that can be used in the form of one-pack.