37 results about "P-tert-octylphenol" patented technology

The invention provides a preparation method of p-tert-octyl phenol formaldehyde resins. Mixture of C4 fraction by additive reaction after being treated with a sulfated-degassing process is adopted as raw material; isobutene dimmer with targeted distillate content more than 98 percent after respective evaporation and cutting at the temperature of 75 DEG C-105 DEG C is adopted as alkylating agent; Na-sulfonated polystyrene-polyvinylidene copolymer strong-base anion exchange resin and H-sulfonated polystyrene-polyvinylidene copolymer strong-acid cation exchange resin are adopted as alkylation catalyst so as to obtain the p-tert-octyl phenol alkylate mixture by alkylation reaction under the temperature of 90-100 DEG C; the mixture is then treated with respective evaporation and cutting under the temperature of 220-270 DEG C to prepare the p-tert-octyl phenol with the melting point of 87.5-89.5 DEG C; finally the p-tert-octyl phenol and formaldehyde solution are treated with condensationreaction catalyzed by acid in toluol medium to obtain the p-tert-octyl phenol formaldehyde resins.

This rubber composition for a tire is obtained by blending a rubber component (A), zinc oxide (B), and a co-condensate (C) that has a softening point of 150 DEG C or less and that contains a p-tert-butylphenol-derived constituent unit represented by formula (1), an o-phenylphenol-derived constituent unit represented by formula (2), and a resorcinol-derived constituent unit represented by formula (3). The nitrogen adsorption specific surface area (N2SA) of the zinc oxide (B) according to the BET method is 6-110 m<2> / g. The blending amount of the zinc oxide (B) is 5-13 parts by mass with respect to 100 parts by mass of the rubber component (A). The blending amount of the co-condensate (C) is 0.1-10 parts by mass with respect to 100 parts by mass of the rubber component (A). The co-condensate (C) can be used as a replacement for p-tert-octylphenol and p-nonylphenol, has a softening point that is lower than the maximum temperature in a rubber processing step, and has excellent dispersibility in rubber.

The invention discloses an oil-resistant cable material used for railway locomotive vehicle cables, and a preparation method thereof. The oil-resistant cable material is prepared from the following raw materials by weight: 60-80 parts of high styrene rubber, 40-60 parts of butadiene-acrylonitrile rubber, 20-40 parts of chloroprene rubber, 15-20 parts of a bromomethyl-p-tert-octyl phenol formaldehyde resin, 10-15 parts of dibutyl maleate, 9-18 parts of polychlorinated biphenyls, 8-16 parts of tridichloropropyl phenyl silicate, 10-15 parts of nano barium titanate, 12-18 parts of heavy calcium carbonate powder, 5-10 parts of fly ash, 24-32 parts of fast extruding furnace carbon blanc N550, 2.5-4.5 parts of di-tert-butyl peroxide, 3-6 parts of dibenzoylquinone dioxime, 2-3 parts of isocyanatopropyl triethoxysilane, 3-5 parts of basic lead carbonate, 2-3 parts of calcium oxide, 6-12 parts of a transformer oil, 4-6 parts of liquid paraffin, 3-5 parts of glyceryl monopalmitate, 1-2 parts of tetraethylthiuram disufide, 2-3 parts of N-tert-butylbenzothiazole-2-sulphenamide, 1.5-2.5 parts of 6-ethoxy-2,2,4-trimethyl-1,2-dihydroquinoline and 10-15 parts of modified stone powder. The cable material provided by the invention has excellent oil resistance, solvent resistance and chemical corrosion resistance, and effectively prolongs the service life of the cable.

The invention discloses a bacteriostatic high-hardness shoe material and a preparation method thereof. The preparation method comprises the following steps: (1) preparing the ethanol extract of Hovenia dulcis and the 50wt% ethanol water extract of Tianxian vine; (2) preparing The temperature in the reaction kettle is set at 65-85°C, and polyoxymethylene resin, butyl rubber, 1,2-polybutadiene resin, polyester modified silicone resin, p-tert-octylphenol formaldehyde resin, and epichlorohydrin rubber are added , ethyl cellulose, macrogol glycerol laurate, mechanically stir the materials in the reactor evenly; The rattan 50wt% ethanol water extract is stirred again, and after stirring evenly, the mixed material is cooled and pressed into a sheet to prepare a bacteriostatic high-hardness shoe material. The prepared shoe material has the properties of strong antibacterial effect, high tensile strength and high hardness.