264 results about "Methylethyl ketone" patented technology

A gas separation membrane having a gas separating layer containing a polybenzoxazole resin, in which the polybenzoxazole exhibits a solubility of 1% by mass or more to any one solvent selected from tetrahydrofuran, chloroform, methyl ethyl ketone, and N-methylpyrrolidone, at a temperature of 30° C., a gas separation module utilizing the gas separation membrane, a gas separation apparatus, and a gas separation method.

The invention discloses a preparation method of low shrink air dry vinyl ester heavy-duty anti-corrosive paint. The anti-corrosive paint comprises a first component of the dry vinyl ester heavy-duty anti-corrosive paint and a second component of the dry vinyl ester heavy-duty anti-corrosive paint, wherein the first component of the dry vinyl ester heavy-duty anti-corrosive pain t comprises vinyl ester resin, titanium pigment, French chalk, mica powder, gas phase silicon dioxide, styrene, BYK-410, BYK-555, glass scales and like, the second component of the dry vinyl ester heavy-duty anti-corrosive paint comprises dibutyl phthalate, methylethyl ketone peroxide and cobalt naphthenate. The defects of low air dry capability and high cure shrinkage of the traditional vinyl ester glass scale heavy-duty anti-corrosive paint are solved by introducing the air dry addition product group to synthesize low shrink air dry resin, and the paint has the advantages of high media penetrability resistance, abrasive resistance and the like. The low shrink air dry vinyl ester heavy-duty anti-corrosive paint has the characteristics of simple preparation process, abundant raw materials and stable performance, and is suitable for large-scale industrial production.

The invention is a breathable ultraviolet-resistant anti-static polyurethane resin coating adhesive and a preparation method thereof. The breathable ultraviolet-resistant anti-static polyurethane resin coating adhesive is prepared by compounding water-based breathable anti-static polyurethane resin, a blocked polyurethane crosslinking agent, nano zinc oxide and a thickening agent, wherein the water-based breathable anti-static polyurethane resin is prepared from components A, the blocked polyurethane crosslinking agent is prepared from components B, the components A comprise 50-200 parts of polyoxyethylene ether glycol, 50-200 parts of polyoxypropylene ether glycol, 1-5 parts of trimethylolpropane, 40-200 parts of polyisocyanate, 3-10 parts of a chain extender, 0.02-0.06 part of a catalyst, 30-60 parts of a solvent, 3-10 parts of sodium hydrogen carbonate, 3-10 parts of sodium hydrogen sulfite and 500-1,500 parts of deionized water, and the components B comprise 100-200 parts of 1.6-hexylidene diisocyanate trimer, 42-92 parts of acetone oxime or methyl ethyl methyl ethyl ketoxime, 0.02-0.06 part of a catalyst, 400-900 parts of a solvent and 30-80 parts of an ultraviolet-resistant additive. The breathable ultraviolet-resistant anti-static polyurethane resin coating adhesive has excellent air permeability, ultraviolet resistance and static resistance and has good dry and wet rubbing fastness.

The invention relates to a chemical technology field, concretely, discloses high-hardness white unsaturated polyester priming paint and a preparation method thereof. The priming paint contains a first component, cobalt isocaprylate (blue wate), methylethyl ketone peroxide (white water), and a diluent, wherein the weight ratio of the first component, to cobalt isocaprylate (blue wate), to methylethyl ketone peroxide (white water) and to diluent is 100:(0.8-2):(1-2.5):(30-40). The high-hardness white unsaturated polyester priming paint and the preparation method resolve the problem that the PU polyurethane paint has bad hardness, the usage of unsaturated polyester paint reduces the VOC content of the paint, and the high-hardness white unsaturated polyester priming paint has good fullness and filling effect.

A catalyst for preparing ketone by dehydrogenating alcohol is prepared from Cu as active component, Zn, Cr, or K as active assistant and alumina as carrier through co-depositing, coating alkali metal by immersing or spraying, drying, and calcining. It has high activity and selectivity.

The invention discloses a hollow glass bead and polyurethane cooperated-modified unsaturated polyester composite material and a preparation method thereof. The composite material is prepared from the following ingredients in parts by weight: 100 parts of unsaturated polyester resin, 15-40 parts of hollow glass bead-polyurethane prepolymer, 5-10 parts of diluent styrene, 1.5-3 parts of initiator methylethyl ketone peroxide, 0.3-0.6 part of accelerant cobalt naphthenate and 0.3-0.6 part of antifoamer simethicone. The prepared composite material has good mechanical strength and toughness while the density is effectively lowered, and meanwhile, the composite material further has special properties such as heat insulation, heat preservation and silencing.