52results about How to "Good transport stability" patented technology

The invention relates to a quaternized modified amino silicone oil softener and preparation and application thereof. The softener comprises the following general formula in the specification. The preparation comprises the following steps of: (1) adding octamethylcy-clotetrasiloxane into a container, adding a coupling agent N-beta-(aminoethyl)-gamma-aminopropyl methyl dimethoxysilane into the container dropwise, adding a tetramethyl ammonium hydroxide catalyst and subsequently a capping agent hexamethyl disiloxane into the container, and then performing reduced pressure distillation to obtain amino silicon oil; (2) dissolving the amino silicon oil into a solvent, adding the mixture into epichlorohydrin, stirring and heating to react under the protection of nitrogen, and removing the solvent by steaming to obtain an intermediate product; and (3) uniformly mixing N,N-dimethyl-decanamide and the solvent to obtain a mixture, stirring with heating, adding the intermediate product dropwise into the mixture under the protection of nitrogen, performing a thermostatic reaction, and removing the solvent by steaming to obtain the product. The softener of the invention has high hydrophilicity and high stability; fabric processed by the softener has excellent soft handfeel, high hydrophilicity, low yellowing, antibacterial property and the like; and the softener is simple to prepare and is suitable for industrial production.

A composite laminate is formed from a structural foam and a reinforcement layer. The matched surface tensions of the structural foam and reinforcement layer result in increased bond strength between the structural foam and the reinforcement layer, thus providing for improved physical characteristics including improved lap shear and flexural strength.

The invention relates to the field of biochemistry, in particular to recombinant human growth hormone sterile powder for injection and a preparation method thereof. The recombinant human growth hormone sterile powder for injection is prepared from, by weight, 1.5-2 parts of recombinant human growth hormones, 35-75 parts of excipient, 0.5-5 parts of antioxidant, 0.05-0.5 part of surface active agent, 0.4-0.6 part of disodium hydrogen phosphate and 0.1-0.3 part of sodium dihydrogen phosphate. The preparation method of the recombinant human growth hormone sterile powder for injection comprises the steps of A, weighing, wherein the accessories with the weight parts are weighed; B, dissolving, wherein all the accessories are individually dissolved and then mixed, the recombinant human growth hormones with the weight parts are added, and the volume is fixed; C, filtering; D, filling, wherein a bottle is filled with the filtered solution; E, freeze-drying, wherein the filled bottle in step Dis subjected to pre-freezing, vacuumizing, lyophilizing and desorption drying, and freeze-drying is carried out; F, capping. The recombinant human growth hormone sterile powder for injection is good in appearance, dense and uniform in structure and good in stability and activity, the product quality is not influenced in the transportation and use process, and useful life of the product is long.

The invention discloses high-solid epoxy-terminated polyurethane resin for synthetic leather and a preparation method thereof. The high-solid epoxy-terminated polyurethane resin for the synthetic leather is prepared from the following starting materials in percentages by mass: 50-90% of polyhydric alcohol, 0.01-2% of a chain extender, 5-30% of diisocyanate, 1-20% of an epoxy group-containing sealing agent and 2-20% of a solvent, wherein the polyhydric alcohol is one or a mixture of polyether polyol and polyester polyol. The high-solid epoxy-terminated polyurethane resin is good in storage and transportation stability, high in solid content, low in release amount of a solvent volatile in preparation and use processes and good in environmental protection performance, directly reacts with a curing agent when being solidified, and is free of release of the sealing agent; the prepared synthetic leather is excellent in physical property and good in hydrolysis resistance.

The invention discloses an environment-friendly and durable chalk material, which is made of the following raw material components in parts by weight: 25-30 parts of titanium dioxide, 5-10 parts of attapulgite, 1-5 parts of negative ion powder, and 1-5 parts of sepiolite powder , 10‑20 parts of clay, 1‑3 parts of traditional Chinese medicine extract, 1‑3 parts of N‑(3‑triethoxysilylpropyl) glucamide, 10 parts of epoxy paraffin modified quaternary ammonium salt‑1015‑20 parts, 1-5 parts of sodium methylstearyl taurate, 1-5 parts of witch hazel tannin, 7-10 parts of oleic acid modified vegetable oil, 1-3 parts of glycerin, and 1-3 parts of ethanol. The invention also discloses a preparation method of the environment-friendly and durable chalk material. The environmentally friendly and durable chalk material prepared by the invention has the advantages of little environmental pollution, convenient use, simple manufacturing process, low cost, smooth writing, clear handwriting, good storage and transportation stability, safe and environmentally friendly use, and durable.