205 results about "Allyl amine" patented technology

The invention aims to provide a method for synthesizing novel perfluoropolyether alkoxysilane applied to anti-fingerprint paint through reaction of perfluoroalkyl ether acyl fluoride, allyl amine and trimethoxy silane. The method is characterized by comprising the following steps: (1) adding perfluoroalkyl ether acyl fluoride and allyl amine into a reaction vessel at the molar ratio of 1 to (1-1.1), adding a certain amount of solvent and alkali into the reaction vessel, and performing stirring overnight at a room temperature; performing filtration, performing distillation under reduced pressure to remove the solvent, and performing silica gel column separation, wherein an eluting agent is composed of heptane and ethyl acetate at the ratio of 6 to 1, and a product is obtained after the solvent is removed; (2) a certain amount of product obtained in the step (1) and a catalyst are added into a reaction kettle, sealing the reaction kettle, performing nitrogen protection, placing the reaction kettle in oil bath, heating the reaction kettle to specified temperature, and performing stirring for reaction for 48 hours; quickly cooling the reaction kettle to room temperature after the reaction is finished; performing distillation under reduced pressure on the product of the reaction to remove solvent, and then performing separation and purification through silica gel columns to obtain the product (namely the novel perfluoropolyether alkoxysilane). The product prepared by the invention is applied to anti-fingerprint paint, has the characteristics of fingerprint reduction, easiness in cleaning, wear resistance and the like, and is suitable for lots of base materials, such as glass, plastic, metal and films.

The invention relates to a cationic high-molecular low-temperature self-crosslinking formaldehyde-free color fixing agent and a preparation method. The color fixing agent is prepared from the following raw materials: dimethyl diallyl ammonium chloride containing 350 to 420kg of cationic monomer, water-soluble monomer comprising 0 to 20kg of acrylamide and 0 to 20kg of allyl amine, 10 to 20kg of low-temperature self-crosslinking reactive monomer, 10 to 20kg of low-temperature self-crosslinking accelerant, 1.0 to 2.0kg of evocating agent (ammonium persulfate) and 380 to 450kg of deionized water. The cationic high-molecular low-temperature self-crosslinking formaldehyde-free color fixing agent has the advantages that the color fixing agent can achieve ideal color-fixing effect and increase dye utilization rate, dyeing fastness and product quality. The preparation method has simple production process flow and low cost, and adopts a closed production process and special production equipment, thereby converting all input raw materials into products; and 'three wastes' (waste gas, waste water and waste residue) do not generated during the entire production course and the method is suitable for industrialized production.

A solution for treating a surface of an iron material includes (a) zirconium fluoride; (b) ion of a rare earth element and / or a compound containing a rare earth element; (c) a polyallylamine; (d) aluminum ion; and (e) free fluorine ion. Zirconium in the component (a) is at a weight concentration A of 10 to 1000 ppm. The ratio K of the weight concentration B of the rare earth element in the component (b) to the weight concentration A (B / A) is 0.1 to 30. The component (d) is at a weight concentration D of 50 to 250 ppm. The component (e) is at a weight concentration E of 0.5 to 30 ppm. A coating having excellent corrosion resistance before and after the subsequent coating can be deposited on the surface of an iron material by using the surface treating solution which does not contain environmentally harmful ingredients.

The invention discloses a preparation method for aminoalkyl ended polysiloxane. The preparation method comprises the following steps: (1) allyl amine and trimethylchlorosilane react to produce N-trimethylsililyl allylamine with protective groups; (2) HSi key ended hydrosilicone oil and N-trimethylsililyl allylamine are subjected to hydrosilylation reaction to produce N-trimethyl silicane aminopropyl ended polysiloxane; and (3) the N-trimethyl silicane aminopropyl ended polysiloxane is subject to alcoholysis to remove the protective groups to obtain aminopropyl ended polysiloxane. Both the flexibility and the high-and-low temperature resistance of an LED epoxy resin packaging material adopting the product prepared by the method are improved, and the adhesion of LED addition pouring silicone rubber adopting the product can also be improved.

Pressure sensitive adhesive compositions having enhanced resistance to water-whitening comprising an aqueous emulsion polymer are disclosed. The polymer comprises the polymerization reaction product of a polymerizable aqueous emulsion comprising: (i) at least one hydrophobic alkyl acrylate or alkyl methacrylate ester of an alcohol, (ii) at least about 1 wt. % of at least one hydrophilic monomer, (iii) at least about 5 wt. % of at least one partially hydrophilic alkyl acrylate or alkyl methacrylate ester of an alcohol, and (iv) a water-soluble or water-dispersible polymerizable surfactant selected from compounds having a terminal allyl amine moiety, substituted phenyl compounds having at least one alkenyl substituent, polyoxyalkylene-1-(allyloxymethyl)alkyl ether sulfate salts, or mixtures thereof, and the average particle size of the polymer is less than or equal to 200 nm. Also disclosed are processes for preparing same.

The invention relates to a synthetic method for bactericide of silthiopham, and the synthetic method comprises the following steps of: enabling 4,5-dimethyl-2-(trimethyl silica based) thiophene-3-methyl formate and allyl amine to flow back in a solvent I for reaction for 5-15 hours, cooling to room temperature after reaction, washing, and obtaining an organic phase through drying, concentration and recrystalization; or firstly evaporating the solvent I under negative pressure after reaction, then cooling to room temperature, washing, extracting dichloromethane, and obtaining the organic phase through drying, concentration and recrystalization, wherein the feeding molar ratio of 4,5-dimethyl-2-(trimethyl silica based) thiophene-3-methyl formate and allyl amine is 1:(1-2). The method has the characteristics that the raw material is cheap and easily available, the reaction temperature is mild, the reaction yield is high and the like, thus being applicable to large-scale production.

Chromatographic media of porous media particles derivatized with allylamine or polyallylamine obtained directly or through intermolecular polymerization on the surface thereof and such media functionalized with further functionalization groups. Such media are particularly useful for separating biomolecules.

The invention discloses water-based cleaning-free scaling powder, and belongs to the technical field of powder metallurgy materials. The developed water-based cleaning-free scaling powder comprises asolvent, active matter and an additive. The solvent is composed of deionized water, diethyl ether, aromatic oxide, butyl acetate, petroleum resin and terpene resin. The active matter is composed of citric acid, lactic acid, polyaspartic acid, poly(allylamine) and polyethyleneimine. In addition, a surface active agent, a corrosion inhibitor, a thixotropic agent, a film forming assistant and an antioxidant are included in the additive. Soya bean lecithin and fatty glyceride serve as main ingredients of the film forming assistant, and the antioxidant is tea polyphenol and gallic acid. The water-based cleaning-free scaling powder prepared through the technical scheme has the advantages of excellent spreadability and wettability, and meanwhile, compared with traditional scaling powder, the insulation performance and stability of the water-based cleaning-free scaling powder are obviously improved.

Chromatographic media of porous media particles derivatized with allylamine or polyallylamine obtained directly or through intermolecular polymerization on the surface thereof and such media functionalized with further functionalization groups. Such media are particularly useful for separating biomolecules.

The invention provides a method for preparing sevelamer carbonate. The method comprises the following steps: a) polymerizing poly(allylamine hydrochloride) and 1, 3-dichloro-2-propanol at the temperature of between 30 and 70DEG C and the pH of 7-10, washing, and collecting the polymerized product to obtain sevelamer hydrochloride; b) dispersing the sevelamer hydrochloride in an alkali solution at the pH of 8-12 to obtain alkaline sevelamer; c) washing the alkaline sevelamer with water until neutrality to obtain an alkaline sevelamer cationic resin; and d) mixing a carbonic acid solution and the alkaline sevelamer cationic resin to obtain the sevelamer carbonate. By the method for preparing the sevelamer carbonate, the sevelamer carbonate has high purity; and in addition, by a Soxhlet extraction method, the mass transfer velocity can be improved and the reaction time is saved.

A method for preparing SiOCN ceramic belongs to the field for preparing ceramic. The invention settles the problems of uneasy controlling of component, complex preparing process and low cost existing in the prior method for preparing SiOCN material. The method of the invention comprises the following steps: 1. mixing the compound containing silicon-hydrogen bond with allyl amine, then adding platinum catalyst and mixing to uniform for obtaining the compound; 2. preparing SiOCN precursor; and 3. preparing the SiOCN ceramic through pyrolysis. The preparing method according to the invention has an advantage of low cost. The high-temperature performance of prepared SiOCN ceramic is excellent. The prepared SiOCN ceramic can be used in a condition with temperature higher than 1400 DEG C. The application range of prepared SiOCN is wide.