58 results about "Aminoethylene" patented technology

Described herein are methods to form silicon dioxide films that have extremely low wet etch rate in HF solution using a thermal CVD process, ALD process or cyclic CVD process in which the silicon precursor is selected from one of:R1nR2mSi(NR3R4)4-n-m; and,a cyclic silazane of (R1R2SiNR3)p,where R1 is an alkenyl or an aromatic, such as vinyl, allyl, and phenyl; R2, R3, and R4 are selected from H, alkyl with C1-C10, linear, branched, or cyclic, an alkenyl with C2-C10 linear, branched, or cyclic, and aromatic; n=1-3, m=0-2; p=3-4.

The present invention relates to improved contact lens products which not only have an improved and sustainable wettability. The contact lens product of the invention comprises a soft hydrogel contact lens immersed and autoclaved in a packaging solution including a polyoxyethylene-polyoxybutylene block copolymer and a high molecular weight copolymer of N-vinylpyrrolidone and at least one amino-containing vinylic monomer. The present invention also provides methods for making contact lens products of the invention.

The invention provides a button with cotton and linen effect and a preparation method thereof. The button with cotton and linen effect provided by the present invention comprises: 85-100 parts of resin; 1.0-15 parts of pretreated filler; 0.5-10 parts of diluent; 0.1-0.5 part of defoamer; 0.5 to 2.5 parts; accelerator 0.5 to 2.0 parts; the pretreated fillers include fillers and pretreatment agents covering the fillers; the fillers are selected from one of milk enzymes, lignin, cellulose acetate, diatomite and kaolin. one or more; pretreatment agent is selected from Y‑R‑SiOX 3 One or more of; wherein, Y is selected from amino, vinyl, epoxy, cyano or methacryloyloxy; R is alkylene; X is selected from chlorine atom, methoxy, ethoxy group, methoxyethoxy or acetoxy. The surface of the button has the effect of cotton and linen, and can meet the necessary functional requirements when the button is used on clothing.

The invention relates to a synthesis method of 5-aminolevulinic acid hydrochloride, comprising: using succinic anhydride as a raw material, performing monoesterification with methanol to obtain monomethyl succinate; monomethyl succinate and N, N'-carbonyldiimidazole undergoes a nucleophilic substitution reaction to obtain 4-(1-imidazole)-4-oxobutanoic acid methyl ester; 4-(1-imidazole)-4-oxobutanoic acid methyl ester and nitromethane A nucleophilic substitution reaction occurs under the catalysis of a basic compound to obtain methyl 5-nitro-4-oxopentanoate; methyl 5-nitro-4-oxopentanoate undergoes a reduction reaction with a metal reducing agent and undergoes hydrolysis 5-aminolevulinic acid hydrochloride is obtained. The process of the present invention is simple, the raw materials are easy to obtain, no special rectification and recrystallization devices are needed to process the intermediate products, no toxic and expensive raw materials are used, and the use of heavy metal reducing agents is avoided, so as not to pollute the environment, and the synthesis cost It is cheap, and the purity of the synthesized product can reach 97% after recrystallization detection, and the total yield is high, which can reach more than 70%.

The invention discloses a high-strength copolymer hydrogel based on acryloylaminoglycinamide, and a preparation method thereof. The high-strength copolymer hydrogel based on acryloylaminoglycinamide is prepared through free radical polymerization of acryloylaminoglycinamide and 2,4-diamino-6-vinyltriazine monomers, and dihydrogen bonds are formed between acrylamido-glycinamido groups, between 2,4-diamino-6-vinyltriazinyl groups and between the acrylamido-glycinamido group and the 2,4-diamino-6-vinyltriazinyl group on the side chains of the molecules of the copolyme hydrogel. The method has theadvantages of simplicity in operation, and easiness in preparation, and allows the hydrogel to have the advantages of pH response, high strength, high stability and the like.

The invention belongs to new materials and applications in the field of water treatment, and specifically relates to the preparation of a hexavalent chromium ion imprinted polymer and its application in treating water with hexavalent chromium. Traditional hexavalent chromium adsorption materials have low adsorption capacity, poor selectivity, long time, and are difficult to reuse. Therefore, the present invention prepares a new material for efficiently treating hexavalent chromium in water. The preparation method is: prepare graphene oxide by the improved Hummer method, and then load mesoporous silicon on the surface of graphene oxide to obtain a specific surface area of ​​about 780m 2 / g of graphene oxide-mesoporous silicon composite (GO-MS). With GO‑MS as carrier, hexavalent chromium ion as template, 3‑(2‑aminoethylamino)propyltrimethoxysilane as functional monomer and crosslinking agent, sol‑gel reaction was carried out at room temperature, and hydrogen Sodium oxide solution was used to elute the hexavalent chromium in the product, and then vacuum-dried. The material can selectively adsorb hexavalent chromium, reaching adsorption equilibrium in 30 minutes, with an adsorption capacity of 438 mg / g, and can be reused 5 times.

This invention relates to novel hydrogenation catalyst compositions obtainable from reacting metal-based complex hydrogenation catalysts, preferably (annellated) iminovinyloxy Ru species such as knownby the trade names Umicore M41 or Umicore M42, with specific co-catalysts such as ethyl vinyl ether (EVE) and to a process for selectively hydrogenating nitrile rubbers in the presence of such novelhydrogenation catalyst compositions, optionally with prior metathetic decrease of molecular weight.