183 results about "Adipamide" patented technology

The invention relates to a rhodococcus ruber and a method for preparing 5-cyanovaleramide by utilizing the same. The strain needs oxygen, does not need power, spores and gram-positive bacteria, is already stored in the Common Microorganism Center of Chinese Microorganism Strain Storage Management Committee and has storage data of Jun. 4, 2009 and a preservation number of CGMCC No.3090. The method for preparing the 5-cyanovaleramide by utilizing the rhodococcus ruber comprises the following steps: (1) culturing seeds; (2) fermenting and culturing; (3) preparing a rhodococcus ruber suspension; (4) preparing a crude product of 5-cyanovaleramide; and (5) purifying the 5-cyanovaleramide. The invention provides a method for generating the 5-cyanovaleramide by selectively hydrolyzing adiponitrile in a rhodococcus ruber region, has high catalytic efficiency, high adiponitrile conversion rate up to 100 percent and 5-cyanovaleramide regioselectivity up to 100 percent, does not generate a side product of adipamide and simplifies the separation purification process of the 5-cyanovaleramide.

A hollow weave fabric for an air bag in which the periphery of a double-layer hollow weave portion is formed with a seam zone, wherein the warp yarn and the weft yarn forming the base fabric are each a poly(hexamethylene adipamide) fiber having a total size of 150 to 500 dtex, the double-layer hollow weave portion has a fabric weight of 120 to 350 g/m² on one side, and the fabric shows a logarithmic decrement of 0.01 to 0.10.

Melt blown bicomponent fibers comprising a first thermoplastic polymeric material and a second thermoplastic polymeric material comprising homo- or co-polymer(s) of poly(m-xylene adipamide) or polyphenylene sulfide. The first thermoplastic polymeric material may be one or more homo- or co-polymer(s) of nylon 6 (polycaprolactam), nylon 6,6 (poly(hexamethylene adipamide)), polypropylene, and/or polybutylene terephthalate. A plurality of bicomponent fibers may thermally bonded to one another at spaced apart points of contact to define a porous structure that substantially resists crushing. The nonwoven fabric webs and rovings and self-supporting, three-dimensional porous elements may be formed from the plurality of bicomponent fibers.

The invention relates to a high barrier anti-aging water cup, and belongs to the technical field of life utilities. The water cup comprises a cup body and a cup lid. The cup lid comprises a small lid and a connection lid. One side of the connection lid is connected with the cup body. The other side is connected with the small lid through thread rotationally. The joint between the cup body and the connection lid is provided with a hanging hook connected by hinges. The cup body and the cup lid are made of the same composite material. The composite material comprises, by weight, 55-70 parts of polypropylene, 7-15 parts of ethylene-vinyl alcohol copolymer, 10-20 parts of poly-meta-xylylene adipamide, 8-15 parts of thermal plastic SEBS, 5-13 parts of modified nano filler, 5-12 parts of compatilizer, 0.02-0.5 part of anti-aging agent and 0.2-0.8 part of lubricant. The cup has the advantages of high barrier, good anti-aging property, excellent mechanical performance, strong impact resistance, less inclination for breaking and long service life.

The invention discloses a boiling and high-temperature resistant polyester thermal contraction material. The thermal contraction material comprises the following components in part by weight: 20 to 40 parts of polyethylene terephthalate (PET), 15 to 25 parts of modified polyethylene terephthalate glycol (PETG), 10 to 20 parts of polybutylene terephthalate (PBT), 5 to 10 parts of polyhexamethylene adipamide (PA66), 1 to 5 parts of thermoplastic elastomer (TPE) and 5 to 15 parts of polyethylene naphthalate (PEN). After a sleeve made of the thermal contraction material is contracted on the surface of a capacitor and then directly boiled for 5 minutes in boiling water or contracted and aged and then boiled for 15 minutes in boiling water and contracted on the surface of the capacitor and then repeatedly aged for 6 hours at the high temperature of 125 DEG C, good appearance can be kept. The invention also discloses a preparation method for the boiling and high-temperature resistant polyester thermal contraction material.

The invention discloses water-resistance polyester powder coating. The powder coating is prepared from the following raw materials in parts by weight: 50-65 parts of pure polyester resin, 5-10 parts of fluorine-containing polyester resin, 3-10 parts of epoxy resin, 5-15 parts of organic silicon resin, 3-10 parts of carboxyl-terminated nitrile rubber, 1-5 parts of N,N,N',N'-tetrakis(2-hydroxyethyl)adipamide, 3-12 parts of tetrahydro-1,3,4,6-tetrakis(methoxymethyl)imidazo[4,5-d]imidazole-2,5(1H,3H)-dione, 1-5 parts of 2-phenyl-2-imidazoline, 1-5 parts of 2-methylimidazole, 2-5 parts of polyethylene, 3-10 parts of polyvinyl butyral, 10-25 parts of pigment and 2-10 parts of auxiliaries. The water-resistance polyester powder coating has good water resistance and good oil resistance, excellent acid and alkali corrosion resistance, can be used for outdoor coating, and has the advantages of good comprehensive performance and long service life.

The discloses a high-performance thermosetting polyester powder coating which comprises the raw materials: pure polyester resin, fluorinated polyester resin, epoxy resin, terminal carboxyl nitrile rubber, N,N,N,N'-tetra(2-ethoxyl) adipamide, tetramethoxyl methyl glycoluril, triglycidyl isocyanurate, amino resin, phenyl-2-imidazoline, 2-methylimidazole, chitosan, sodium lignin sulfonate, starch, polyethylene, polyvinyl butyral, nano titanium dioxide, aluminium oxide, zinc borate, mica iron oxide, montmorillonite, nanosilver, activated carbon powder, lanthanum oxide and auxiliaries. The high-performance thermosetting polyester powder coating disclosed by the invention is good in water resistance, oil resistance and heat resistance and excellent in weather resistance, acid and alkaline corrosion resistance and pollution resistance, and is good in comprehensive performance and long in service life if being used as an outdoor coating.

The invention provides transparent copolymer nylon. The transparent copolymer nylon is prepared by polymerizing the following components by mass percent: 80-96% of a monomer A, 2-10% of a monomer B and 2-10% of a monomer E, wherein the monomer A is lactam; the monomer B is a mixture of an adipic acid monomer and an m-xylylenediamine monomer in a mole ratio of 1:1, a poly-m-xylylenediamine adipamide (MXD6) salt or an MXD6 prepolymer; the monomer E is obtained through reaction between a monomer C and a monomer D in a mole ratio of 1:1; the monomer C is alicyclic diamine; the monomer D is an aliphatic binary acid. The transparent copolymer nylon is prepared by polymerizing the monomer A, the monomer B, the monomer C and the monomer D together and has excellent transparency and comprehensive properties compared with the conventional nylon 6, nylon 66 and nylon 6/66 copolymer.

The invention belongs to the technical field of plastic-wood composite material processing, and particularly relates to a plastic-wood composite material with a low linear thermal expansion coefficient, and the invention further discloses a preparation method for the plastic-wood composite material. The plastic-wood composite material with a low linear thermal expansion coefficient which is disclosed by the invention is prepared from the following materials of modified wood powder, high-density polyethylene, carboxyl-polyester resin, N,N,N',N'-tetrakis(2-hydroxyethyl)adipamide, asbestos fiberpowder, nylon 1010 resin, hafnium carbide ceramic powder, coupling agent and lubricating agent. The obtained plastic-wood composite material has excellent thermal expansion-resistant property, so theoutdoor service life of the plastic-wood composite material is prolonged and appearance smoothness of the plastic-wood composite material is greatly improved; and since the plastic-wood composite material with a low linear thermal expansion coefficient can be obtained only by the conventional extrusion process, the preparation process is simple and easy to implement.

The invention provides a plugging control ball and a preparation method thereof. The plugging control ball comprises, by weight, 10-15% of polycaprolactam, 15-20% of polyhexamethylene adipamide, 65-80% of polyacrylamide, 1-1.5% of nanometer calcium oxide and 2-3% of a solubizing agent, wherein the sum of the percentages of all the components is 100%. Preferably, the sum of the weight percentages of the consumption of the polycaprolactam, the polyhexamethylene adipamide and the polyacrylamide is 95-97.5%. The invention further provides the preparation method of the plugging control ball. The method comprises the steps that the polycaprolactam, the polyhexamethylene adipamide, the polyacrylamide, the nanometer calcium oxide and the solubizing agent are mixed uniformly to obtain a mixture; the mixture is sufficiently stirred and injected into a vacuum spherical mold; the mold is cooled to obtain the plugging control ball. The plugging control ball has the advantages of being high in density, precision and strength and is easy and convenient to use and obvious in effect when applied to a water injection well.

The invention belongs to the technical field of preparation of polyester resin, particularly relates to polyester resin with excellent wear resistance and chemical resistance for powder, and further relates to a preparation method of the polyester resin. The polyester resin provided by the invention is mainly prepared by polymerizing 3, 3-bis (chloromethyl) oxetane, neopentyl glycol diglycidyl ether, terephthalic acid, neopentyl glycol, tris (2-hydroxyethyl) isocyanurate, 1, 4-naphthalic acid and 5-nitroisophthalic acid. When the polyester resin obtained in the invention is used in a powder coating of an N, N, N', N'-tetra (2-hydroxyethyl) adipamide (HAA) curing system, a coating film with excellent wear resistance and chemical resistance can be obtained, and the resistance to 5% acetic acid, 5% sulfuric acid, 5% NaOH, methanol, ethyl acetate, acetone, xylene and acrylic acid can reach grade 5; after boiling in water for 2 hours, no change is caused; and the wear resistance reaches 3.8L/mu m or above.

The invention discloses a method for preparing N,N,N',N'-tetrakis(2-hydroxyethyl)adipamide. The method comprises the following steps: dimethyl adipate is used as an initial raw material to react with diethanol amine to prepare a crude product, and solid alkali serving as catalyst is added in the reacting process, so that the reaction speed is accelerated; the crude product is separated from refined methanol, and is filtered and dried to obtain the N,N,N',N'-tetrakis(2-hydroxyethyl)adipamide product, and the filtrate can be recycled to improve the product yield and reduce the consumption. The molar ratio of the dimethyl adipate to the diethanol amine to the methanol is 1:2-2.5:5-25. The method has the advantages of simple process and easy industrialization, and can improve the product yield to over 80 percent and the purity to over 99 percent.

The invention discloses a halogen-free flame-retardant nylon 66 masterbatch, which comprises the following components in percentage by weight: 20 to 90 percent of polyhexamethylene adipamide, 5 to 60 percent of flame retardant A, 5 to 60 percent of flame retardant B, 0.1 to 2 percent of antioxidant and 0.1 to 2 percent of light stabilizer. The invention has the advantages that: different from a method of directly adding the flame retardants, the method comprises the following steps of: preparing a halogen-free flame-retardant masterbatch taking nylon 66 as a matrix and blending with nylon 66 to obtain halogen-free flame-retardant nylon 66 masterbatch; and the halogen-free flame-retardant nylon 66 masterbatch is more convenient to store and use and has better operability and higher mechanical properties and flame retardancy.

Provided is a packaging element including a polymer layer and having a thickness of between 10 and 200 micro meter; wherein the packaging element being for use in providing an essentially sealed, void-free enclosure of an energy storage device, and wherein the polymer is selected from: poly(para-xylylene), poly-m-xylylene adipamide, dielectric polymer, silicone-based polymer, polyurethane, acrylic polymer, rigid gas impermeable polymer, fluorinated polymer, epoxy, polyisocyanate, PET, silicone rubber, silicone elastomer, polyamide and any combinations thereof.

The invention relates to a fissility shrinkable film, containing 60-85 mass portion of nylon 6 (Ny6) and 15-40 mass portion of m(p-xylylene adipamide) (MXD6) (total is 100 mass portion) as materials. The material comprises original materials containing 60-85 mass portion of Ny and 15-40 mass portion portion of MXD, and a heat processing matter for melting refining the Ny6 and MXD6 to make the MXD6 melting point be 233-238 DEG C. The content of the heat processing matter is 5-40 mass%. The shrinkage of the fissility shrinkable film is 3-20% when keeping in the hot water at 95 DEG C for 30 mins.

The invention relates to an antibacterial PA66/ABS composite material. The antibacterial PA66/ABS composite material is mainly prepared through blending the following ingredients in parts by mass and carrying out melting: 50-70 parts of polyhexamethylene adipamide, 10-30 parts of processing activator, 30-50 parts of acrylonitrile-butadiene-styrene, 5-10 parts of compatibilizer, 5-20 parts of toughener, 0.1-0.3 part of diffusion oil, 0.6-1.5 parts of antibacterial agent and 0.2-2 parts of auxiliaries. The antibacterial PA66/ABS composite material is prepared through firstly, thoroughly mixing weighed polyhexamethylene adipamide, weighed processing activator, weighed acrylonitrile-butadiene-styrene, weighed compatibilizer and weighed diffusion oil in a high-speed mixer, then, adding the antibacterial agent and the auxiliaries into the mixture, and finally, adding the toughener into the mixture and carrying out thorough mixing, so as to obtain a premix; carrying out melt extrusion on the premix through a twin-screw extruder, and carrying out drawing, cooling and pelleting. The product provided by the invention has the advantages of easiness in processing, high antibacterial performance, excellent mechanical properties, and the like.

The invention belongs to the technical field of resin production, and particularly relates to a polyester resin for an anti-yellowing HAA (N,N,N',N'-tetra(Beta-hydroxyethyl)adipamide) system and further relates to a preparation method and application of the polyester resin. The anti-yellowing HAA system provided by the invention is polymerized by using pyromellitic dianhydride, 1,6-hexanediamine,isophthalic acid, phloroglucinol formic acid, ethanetricarboxylic acid monoester, 2,5-dihydroxy hexane, neopentyl glycol and 2,2'-diphenic acid. Because a polyimide chain is carried in the molecular chain of the polyester resin obtained by the materials and a specific process, the high temperature-resistant and anti-yellowing properties are excellent; moreover, because the materials containing phenolic hydroxyl groups, such as phloroglucinol formic acid and ethanetricarboxylic acid monoester, are used for participating in reaction and the phenolic functional group with high anti-yellowing capability is contained in the polyester chain, the polyester product has excellent high temperature-resistant and anti-yellowing properties, and is ultimately used in the powder paint of the HAA system,so that a coated panel with excellent anti-yellowing property can be obtained.

The invention discloses high-fluidity polyhexamethylene adipamide modified base resin and a preparation method thereof. The preparation method comprises the following steps: (1) mixing hexanediamine,adipic acid and desalted water for a reaction, and then adding hexanediamine to adjust the pH to obtain a polyamide salt solution; (2) performing evaporation and concentration; (3) performing heatingto obtain a prepolymer; (4) keeping the system pressure constant, and continuing heating to obtain low molecular polyamide; (5) performing depressurization to obtain a product, that is, a polyhexamethylene adipamide molten product; and (6) performing cooling, and performing pelletizing and granulation to obtain the polyhexamethylene adipamide product. The method disclosed by the invention preparesthe high-fluidity polyhexamethylene adipamide modified base resin on the premise of guaranteeing the excellent mechanical properties of the polyhexamethylene adipamide product through the additive and the process and controlling on the molecular weight of the product; and the polyhexamethylene adipamide prepared by the method is an engineering plastic grade product instead of a spinning grade product.

The invention relates to a water cup with scratch resistance and high barrier property and belongs to the technical field of articles for daily use. The water cup comprises a cup body and a cup cover, wherein a plurality of concave points with equal intervals are distributed in the peripheral surface of the cup body; the cup body is connected with the cup cover in a manner of thread rotation; a rope penetrating port is arranged at the upper end of the cup cover; and the cup body and the cup cover are made of a same composite material. The composite material comprises the following components in parts by weight: 50-70 parts of polypropylene, 5-12 parts of ethylene-vinyl alcohol copolymer, 8-18 parts of poly-meta-xylylene adipamide, 5-12 parts of polymethyl methacrylate, 3-10 parts of nylon, 5-10 parts of modified nanofiller, 5-12 parts of compatilizer, 0.5-2 parts of silicone master batch and 0.1-1 part of lubricant. The water cup has the advantages of good scratch resistance, high barrier property, excellent mechanical property, large impact strength, difficult breaking and long service life.

A curing agent for powdered paint of polyester resin relates to the production technique field of powdered paint of polyester resin. The novel curing agent consists of tetra adipamide (2-hydroxyethyl group) and tris isocyanurate (2-hydroxyethyl group); wherein, the tetra adipamide (2-hydroxyethyl group) accounts for 50 to 90 percent of the gross weight and the tris isocyanurate (2-hydroxyethyl group) accounts for 10 to 50 percent of the gross weight. The invention not only has tetra adipamide (2-hydroxyethyl group) with the advantage of Beta-hydroxyl alkyl amide, but also has the widely-used tris chlorinated Isocyanurates (2-hydroxyethyl group) with the advantages of safety and low toxicity. Simultaneously, the tris chlorinated Isocyanurates (2-hydroxyethyl group) and the tetra adipamide (2-hydroxyethyl group) have similar structure of (2-hydroxyethyl group) active functional group, thus having similarities and compatibility.

The invention belongs to the technical field of polyester resin materials and preparation, particularly relates to a boiling-resistant polyester resin for a N,N,N',N'-tetra(2-hydroxypropyl) adipamidesystem, and furthermore relates to a preparation method of the resin. The polyester resin for the N,N,N',N'-tetra(2-hydroxypropyl) adipamide system is mainly formed by terephthalic acid, o-carboxyphenylacetic acid, 1,1'-ferrocene dicarboxylic acid, calcein, 1,8-octylene glycol, 3-(trimethylsilyl)-1,2-propanediol, 5-hydroxydecanoic acid glyceride and neopentyl glycol. The boiling-resistant polyester resin for the N,N,N',N'-tetra(2-hydroxypropyl) adipamide system obtained N, N, N', N'-tetra(2 hydroxypropyl) adipamide system is blocked by the high-activity tetrabasic acid calcein, and the final activity of the polyester resin is relatively high, so that the sufficient curing with a (N,N,N',N'-tetra(2-hydroxypropyl) adipamide) curing agent is well realized, and a coating film with a relativelyhigh crosslinking density is obtained.

The invention provides transparent copolymer nylon. The transparent copolymer nylon is prepared by polymerizing the following components by mass percent: 80-96% of a monomer A, 2-10% of a monomer B and 2-10% of a monomer F, wherein the monomer A is lactam; the monomer B is a mixture of an adipic acid monomer and an m-xylylenediamine monomer in a mole ratio of 1:1, a poly-m-xylylenediamine adipamide (MXD6) salt or an MXD6 prepolymer; the monomer F is obtained through reaction between a monomer E and a monomer C in a mole ratio of 1:1 or reaction between the monomer E and a monomer D in a mole ratio of 1:1; the monomer C is an aromatic binary acid; the monomer D is an alicyclic binary acid; the monomer E is aliphatic diamine. The transparent copolymer nylon is prepared by polymerizing the monomer A, the monomer B, the monomer C and the monomer D together and has excellent transparency and comprehensive properties compared with the conventional nylon 6, nylon 66 and nylon 6/66 copolymer.

The invention discloses a thermal antibacterial school uniform fabric and a preparation method thereof. The thermal antibacterial school uniform fabric is prepared from thermal antibacterial compositefibers through a knitting or weaving process; the thermal antibacterial composite fiber comprises an inner layer and an outer layer, wherein the outer layer covers the outer surface of the inner layer, the section profile of the outer layer is circular; the ratio of the sectional area of the inner layer to the sectional area of the outer layer is 1: 1.35-1.55; and the inner layer is prepared fromfollowing raw material in parts by weight: 88-98 parts of polyhexamethylene adipamide and 5-9 parts of polyurethane elastomers. The specially-made thermal antibacterial composite fiber adopted by thethermal antibacterial school uniform fabric is of the structure having the inner layer and the outer layer, an antibacterial rate is high, a good antibacterial effect is achieved, the school uniformfabric absorbs sweat and then bacteria are not prone to breeding when being worn by people, and the school uniform fabric is not prone to mildewing and stinking; the school uniform fabric is good in elastic performance, good in rebound resilience, soft in hand feeling, comfortable to wear, good in moisture absorption and sweat releasing properties, high in tensile strength, good in mechanical property, and suitable for producing school uniforms.

The invention discloses high-wear-resistance screen cloth and a preparation method thereof. The high-wear-resistance screen cloth is prepared from high-wear-resistance composite monofilaments througha weaving process. Each high-wear-resistance composite monofilament comprises an inner layer and an outer layer, wherein the periphery of the inner layer is coated with the outer layer; the ratio of the sectional area of the inner layer to the sectional area of the outer layer is 10: (7.5-9); the inner layer comprises the following raw materials in parts by weight: 90-95 parts of polyhexamethyleneadipamide, 5-8 parts of polydecamethylene sebacamide and 4-6 parts of carboxylated carbon nanotubes, and the outer layer comprises the following raw materials in parts by weight: 13-16 parts of polyhexamethylene adipamide, 80-85 parts of polydecamethylene sebacamide, 6-8 parts of poly(tetramethylene adipamide), 2-3 parts of graphene, 3-4.5 parts of nano silicon dioxide, 3-5 parts of a lubricant and 4-6 parts of a dispersant. The high-wear-resistance screen cloth disclosed by the invention is excellent in wear resistance; and the high-wear-resistance screen cloth has the advantages of high (meridional) tearing strength, high (meridional) tensile strength, high strength, favorable mechanical properties and long service life.