86 results about "6-Aminocaproic Acid" patented technology

To provide a polyamide resin excellent in lasting thermal stability and having a high biomass ratio.A polyamide resin comprising adipic acid units, pentamethylenediamine units and 6-aminocaproic acid units as constituents, wherein the weight ratio of the sum of the adipic acid units and the pentamethylenediamine units to the 6-aminocaproic acid units is 97:3 to 75:25. The pentamethylenediamine is preferably one produced from lysine using lysine decarboxylase, lysine decarboxylase-producing cells or a treated product of the cells.

The invention discloses a preparation method of 6-aminocaproic acid which is a hemostatic. The preparation method is characterized in that caprolactam is dissolved in diluted hydrochloric acid, heated and refluxed to produce 6-aminocaproic acid hydrochloride which is neutralized by spherical macro-porous styrene type weak alkaline anion exchange resin, thereby acquiring the product after treatment. Compared with other preparation methods, the reaction condition of the method is mild, and metal ion can not be mixed easily, the method is more scientific and rational, the standard of the burn residue required by the original material quality can be realized more easily, white crystal can be obtained from the product without activated carbon decolorizing, the operation is simple, the synthesizing cost is reduced and mass production of the technology is more suitable.

The invention discloses a synthesis method of a specific salbutamol artificial antigen, belonging to the technical field of biological chemical engineering. The synthesis method disclosed by the invention comprises the following steps of: activating salbutamol through a formaldehyde solution, and connecting 6-aminocaproic acid in the ortho-position of a phenolic hydroxyl group to obtain a salbutamol hapten; and coupling a carboxyl group on the salbutamol hapten with an amino group on a carrier protein to obtain the salbutamol artificial antigen. The synthesis method disclosed by the invention can make up for the insufficiencies and defects of the existing salbutamol antigen synthesis technologies, the salbutamol artificial antigen with high specificity is obtained, the specificity of a produced antibody is high, and the sensitivity is high; and experimental results show that the antiserum titre of an animal immunized by using the salbutamol artificial antigen disclosed by the invention can achieve 80000, the detection limit is 0.5ng / mL, and the half-inhibitory concentration IC50 is 5ng / mL. The antigen or the antibody disclosed by the invention can be used for establishing an enzyme-linked immunosorbent analytical method and a colloidal gold test strip rapid assay method so as to rapidly detect the residues of the salbutamol in a food and further realize broad application prospects.

The invention relates to a preparation method of a graphene modified nylon 6 fiber and belongs to the technical field of a functional fiber material. The preparation method comprises the following steps of: carrying out carboxylation and acylating chlorination treatment on graphene; then carrying out diamine treatment to obtain graphene oxide with an active amino on the surface; carrying out polymerization reaction by utilizing the aminated graphene and caprolactam through an initiator 6-aminocaproic acid to prepare a modified nylon 6 melt of the graphene; and carrying out spinning and stretching through a fusion and spinning process to obtain the graphene modified nylon 6 fiber. The technical scheme of the invention utilizes aminated graphene enhanced 6 to improve the interface bonding strength with a base resin, so as to be good for improving the whole performance of the graphene modified nylon 6 fiber. A fiber material prepared by the preparation method provided by the invention can be widely applied to the technical fields of aerospace, cars and ships, communication and transportation, mechano-electronics and the like.

A chemically amplified resist composition comprising a base polymer and an amine quencher in the form of a β-alanine, γ-aminobutyric acid, 5-aminovaleric acid, 6-aminocaproic acid, 7-aminoheptanoic acid. 8-aminooctanoic acid or 9-aminononanoic acid derivative having an unsubstituted carboxyl group has a high contrast of alkaline dissolution in rate before and after exposure and forms a pattern of good profile at a high resolution, minimal roughness and wide DOF.

The invention discloses a rhodamine B-based fluorescence sensor and preparation. The preparation comprises the following steps: dissolving 3-(3',6'-bi(diethyl amino)-3-oxaspiro[isoindoline-1,-1,9'-xanthene]-2-yl) propanal (A) in methyl alcohol, adding 6-aminocaproic acid (B), and stirring at room temperature; dissolving sodium triacetoxyborohydride in tetrahydrofuran, adding to a reaction liquid in the step 1, and further carrying out stirring reaction at room temperature; dropwise adding a saturated sodium bicarbonate solution to the reaction liquid, and further stirring; and removing a solvent by virtue of a rotary evaporator, and separating by using a thin layer chromatography, so as to obtain a target product. The rhodamine B-based fluorescence sensor is relatively simple in synthesis step; resources are saved; and nearly all the reported fluorescence probes can only be applied to an organic solvent or an organic water solution, thus the application of the fluorescence sensor in the fields of actual water sample analysis and life is limited.

The invention discloses a method for producing 6-aminocaproic acid hydrochloride and 6-aminocaproic acid by using nylon-6 waste through depolymerization. The method is characterized by comprising the following steps of: depolymerizing the nylon-6 waste at the temperature of between 100 and 110 DEG C under constant pressure by using 10 to 20 percent solution of hydrochloric acid so as to obtain acidolysis solution, and filtering, separating, purifying, and drying to obtain refined 6-aminocaproic acid hydrochloride; and introducing ammonia into the solution of 6-aminocaproic acid hydrochloride to neutralize the solution to the pH of between 3 and 9, adding industrial alcohol in a volume 3 to 5 times that of the solution, and recrystallizing to obtain the refined 6-aminocaproic acid. The method has the advantages of simple technical process, low production cost, a few by-products, high yield of the aminocaproic acid, and safe production process.

The invention relates to a graphene-modified polyamide 66 / polyamide 6 fiber and a preparation method and application thereof. The fiber is prepared from graphene, PA66 salt, hexamethylenediamine, adipic acid, water, caprolactam and / or 6-aminocaproic acid. The preparation method comprises the steps that in-situ reduction polymerization is adopted, a low-molecular-weight composite material with high-concentration polyamide 6 / graphene is prepared, then the composite material is added into a PA66 polymerization system, and graphene-modified polyamide 66 and polyamide 6 chips are prepared through in-situ polymerization and copolymerization; the chips are subjected to melt spinning, and the polyamide 66 / polyamide 6 / graphene nanometer composite fiber is prepared. According to the method, the PA6 / graphene is introduced into the PA66 system, and the PA66 / PA6 fiber with uniform dispersion and good mechanical performance is prepared.

Bond strength of a composite resin, an adhesive resin cement or the like to dentin or enamel of tooth is remarkably improved by treating the dentin or the enamel with a self-etching primer agent comprising an aqueous solution of a methacrylic acid derivative such as N-methacryloylglycin, N-methacryloyl-3-aminopropionic acid, N-methacryloyl-4-aminobutyric acid, N-methacryloyl-5-aminovaleric acid, N-methacryloyl-6-aminocaproic acid, N-methacryloyl-2-aminomethylphosphonic acid, N-methacryloyl-3-aminoethyl-phosphonic acid and N-methacryloyl-4-aminopropylphosphonic acid.

The invention discloses a method for preparing an amino acid modified polylactic acid polymer. The method comprises the following steps: adding lactic acid, 6-aminocaproic acid, hydroxyproline and aspartic acid into water; dehydrating, and heating to 220-230 DEG C to react to obtain poly(lactic acid-amino acid) copolymer; and mixing polylactic acid with the poly(lactic acid-amino acid) copolymer to obtain the amino acid modified polylactic acid polymer. The preparation method adopts lactic acid as a raw material which is low in price and wide in source, so that the synthesizing cost for the amino acid modified polylactic acid polymer can be reduced, and the prepared amino acid modified polylactic acid polymer has excellent biocompatibility and biodegradability.

The invention discloses a novel antiwrinkling color-keeping finishing agent, prepared from the following components in percentage by weight: 15-23 parts of polyoxyethylene sorbitan fatty acid ester, 5-10 parts of polyethylene glycol oil-based ether, 1-5 parts of sodium polyacrylate, 8-15 parts of polypropylene resin, 3-10 parts of dimethyl formamide, 8-16 parts of epoxy chloropropane, 20-28 parts of diethyl 2-ethyl-2-phenylmalonate, 12-17 parts of N-carbobenzoxy-6-aminocaproic acid, 2-9 parts of diclofenac potassium and 4-12 parts of thiocarbamide. The finishing agent can remarkably improve the antiwrinkling performance of a baffeta, meanwhile keeps the original color and handfeel of the baffeta, and reduction of wearing comfort due to antiwrinkling finishing is avoided.

Antibodies that specifically bind to a peptide having an amino acid sequence as found at the N-terminus of the HA2 fusion peptide of the influenza A virus may be raised by inoculating a mammal with a conjugate of the peptide. In one embodiment, the conjugate comprises the peptide linked to a spacer (e.g. 6-aminocaproic acid) and a carrier protein (e.g. KLH). The antibodies may be used as a universal reagent for detecting HA proteins of influenza viruses. The antibodies are useful as versatile reagents for laboratory research and vaccine potency determination, especially in the event of pandemic influenza outbreaks.

In present invention oxidation method of viscon cellulose with NO2 obtained H3PO4 / HNO3 is defined liquid and gas media. Regenerated oxidise cellulose (REOC in shorten term) contain in —COOH yields are standardised as 18.6-20.1 for textile, 19.8-21.5% for powder samples. Powder and textile (woven and fabric) products are impregnated 1.8-2.4% Ca+2 ion, 0-1.1% Na+1 ion, 0.8-1.5% tranexamic acid and 6-aminocaproic acid as antifibrinolytic. Obtained powder and gel products are impregnated Bi+3, Zn+2 and Ag+1 ions for antiseptic purposes. Only Bismuth of them is shown antibacterial effects. Also the aim of present invention is haemostat antimicrobial properties during impregnation of Rifampicin, Gatifloxacin, Doxycycline, Levofloxacin, Lincomycin, Clindamycin, Ciprofloxacin. Haemostatic properties are indicated for all products and antimicrobial properties are shown for some samples. Cytotoxicity, sensitivity and irritation properties are determined in compliance of Pharmacopeias.