48 results about "Cyclododecane" patented technology

Backbone-substituted 1,4,7,10-tetraaza cyclododecane-N,N′,N″,N′″-tetraacetic acid compounds, metal complexes thereof, compositions thereof, conjugates thereof, and methods of use in diagnostic imaging and treatment of a cellular disorder.

Backbone-substituted 1,4,7,10-tetraaza cyclododecane-N,N′,N″,N′″-tetraacetic acid compounds, metal complexes thereof, compositions thereof, conjugates thereof, and methods of use in diagnostic imaging and treatment of a cellular disorder.

The invention relates to uniform molecularly imprinted polymer microspheres for use as a zeranol selective adsorbent. With an average particle size of 1 micrometer to 300 micrometers and a particle size distribution coefficient C.V. of not greater than 15%, the molecularly imprinted polymer microspheres are prepared by the method of: taking a structural analog cyclododecyl 2, 4-dihydroxybenzoate (CDHB) of zeranol as a template molecule, employing a microfluidic device to prepare microspheres of molecularly imprinted polymers (MIPs) of CDHB (CDHB-MIPs), with the microspheres characterized by good particle size uniformity and good selective absorption capacity for zeranol; placing the microfluidic device containing multiple micro channels below the liquid level of a continuous phase, making the continuous phase flow at a certain rotating speed, driving a disperse phase solution with CDHB into the microfluidic device by an injection pump, generating an emulsion when the disperse phase enters the continuous phase through the micro channels, curing the emulsion droplets so as to obtain polymer microspheres, eluting the polymer microspheres to remove the template molecule, thus obtaining the molecularly imprinted polymer microspheres of CDHB. Specifically, the disperse phase includes the template molecule CDHB, a functional monomer, a cross-linking agent, an initiator and a porogenic solvent, while the continuous phase contains water and a dispersing agent.

The present invention belongs to the field of chemical synthesis of cyclo alkane halide. The preparation of hexabromo-cyclododecane includes the following steps: reaction of 1,5,9-cyclododecatriene and liquid bromine in mixed solvent; separation of the reacted mixture to obtain coarse hexabromo-cyclododecane product; washing with hot water; and vacuum drying to obtain hexabromo-cyclododecane product. The present invention has the features of use of mixed solvent containing C2-C4 saturated alcohol, use of no catalyst, no neutralizing step of coarse product, vacuum drying, high product yield and high product smelting point.

Cyclododecanone (CDON) is prepared by epoxidizing cyclododecene (CDEN) to epoxycyclododecane (CDAN epoxide), and rearranging the CDAN epoxide to CDON to obtain a mixture comprising said CDON and cyclododecane (CDAN), wherein CDAN is separated from the CDON-containing mixture and oxidized to CDON.

The invention discloses a novel stone tablet rubbing protective agent and a preparation method thereof. The protective agent is mainly prepared from, by mass, 5.6-11.5 parts of cyclododecane and 10.5-21 parts of fluorine polymer. Accordingly, cyclododecane is adopted as one of the main raw materials, and cyclododecane has complete hydrophobicity and can be applied to cultural relics sensitive to water or an aqueous solution to serve as a waterproof barrier coating. Daikin GM-105D is selected as the applied fluorine polymer, and the fluorine polymer has the excellent heat resistance, chemical resistance, weather resistance, stain resistance, electrical characteristics and the like and has the unique properties such as non-sticky performance and self-lubricating. Accordingly, cyclododecane and the fluorine polymer are compounded to form a composite material, and the strength, permeability, alkali resistance, stain resistance, heat resistance and weather resistance of the product are improved. The evaporation speed of cyclododecane can be effectively slowed down, evaporability of the product is lowered, and the product can be removed freely.

The present disclosure relates generally to a process for the synthesis of 1,4,7,10-tetraazacyclododecane ligands, chelates, and derivatives thereof. In particular, the present disclosure is directed to a process for the synthesis of 1,4,7,10-tetraaza-1,4,7,10-tetrakis(carboxymethyl)cyclododecane (DOTA) ligands, corresponding DOTA-metal chelates, and various derivatives thereof.

The invention discloses a flame-proof polyolefin resin component and preparing method in the resin flame resistant modifying domain, which comprises the following parts: a. 9-20% bromine fire retardant with decabran diphenyl ethane or octabromobium ether and heat-stability hexabromide cyclododecane with weight rate at 2: 1-1: 2, b. 3-8% synergic fire retardant with antimony trioxide, c. 3-12% melt resistant melt drip agent with one or more of organic montmorillonite, kaolin and clay.

The present disclosure relates generally to a process for the synthesis of 1,4,7,10 -tetraazacyclododecane ligands, chelates, and derivatives thereof. In particular, the present disclosure is directed to a process for the synthesis of 1,4,7,10-tetraaza-1,4,7,10-tetrakis(carboxymethyl)cyclododecane (DOTA) ligands, corresponding DOTA-metal chelates, and various derivatives thereof.

Disclosed herein are polycyanates of the formula: where R, m, Q, p and Z are as defined herein. Also disclosed are methods of curing said polycyanates and methods of using said polycyanates to provide high Tg thermoset products.

The invention provides a vacuum infusion epoxy resin system and a preparation method and application thereof. The vacuum infusion epoxy resin system of the present invention uses epoxy diluent raw materials including polyepoxy tar containing cyclododecane structure, and can obtain A vacuum infusion epoxy resin system with above-moderate initial mix viscosity, low midpoint peak exotherm temperature and long workability time. The present invention provides a vacuum infusion epoxy resin system, the epoxy resin system is prepared by mixing A component and B component, wherein the A component includes bisphenol A epoxy resin and epoxy diluent, The B component includes a polyetheramine curing agent and an alicyclic amine; the epoxy diluent includes a polyepoxy tar containing a cyclododecane structure, and optionally other epoxy diluents.

Polycyanates of the formula:where R, m, Q, p and Z are as defined herein. Methods of curing said polycyanates and methods of using said polycyanates to provide high Tg thermoset products.

The present invention provides a cleanser composition which is used for removing fixing agents and protecting films used in processes for polishing optical articles such as lenses and has high cleansing powers against the fixing agents and the protecting films without using halogen-based solvents, fluorine-based solvents and aromatic solvents against which affections are feared. This cleanser composition is characterized by comprising 75 to 25 wt. % of an alkylene glycol alkyl ether such as dipropylene glycol monomethyl ether or dipropylene glycol dimethyl ether and 25 to 75 wt. % of a 10 to 15C cycloparaffin such as cyclodecane, cycloundecane or cyclododecane.