19 results about "Fixative" patented technology

The invention discloses a method for preparing recombinant collagen antioxidant microspheres without a cross-linking agent. The method comprises the following steps: 1, dissolving recombinant collagen and chitosan in deionized water containing glacial acetic acid to serve as a water phase; petroleum ether containing a surfactant is used as an oil phase; 2, injecting the oil phase into the water phase, emulsifying and stirring through a homogenizer, and reducing the temperature of the system to obtain an emulsion; 3, a fixing agent, water and absolute ethyl alcohol are blended and precooled, and fixing liquid is obtained; 4, adding the stationary liquid into the emulsified liquid for curing, and washing the cured microspheres; and 5, transferring into a tannic acid aqueous solution to soak, then washing with deionized water, and freeze-drying to obtain the recombinant collagen microspheres with uniform size. The recombinant collagen microspheres prepared by the method have good dispersity and uniform and controllable size, avoid the toxicity problem of a cross-linking agent, can be applied to the fields of medical instruments, tissue engineering, drug delivery and the like as a filling agent, and have wide commercial application prospects.

The present invention provides a temporary fixing agent and a temporary fixing product comprising the temporary fixing agent. The present invention is a temporary fixing agent used to temporarily fix a member to be polished, wherein the temporary fixing agent contains at least 50 weight% of a polyhydric alcohol that has at least three hydroxyl groups and a molecular weight of 100-1,000.

A fixing agent quantitative adding device of a water quality sampler comprises a reagent bottle and a reserved sample bottle and is characterized in that a liquid adding device is arranged above the reagent bottle and communicated with an upper opening of the reagent bottle through a first one-way valve, an ejector rod is arranged on the outer side of a measuring cylinder of the liquid adding device, and the upper end of the ejector rod is fixedly connected with an upper cover at the upper end of a core rod of the liquid adding device. The ejector rod is sleeved with a connecting sleeve, and a locking screw is arranged on the connecting sleeve in the radial direction. A lead screw sliding table is arranged on one side of the liquid adding device, a first linear stepping motor is arranged on the lead screw sliding table, and the output end of the first linear stepping motor is fixedly connected with the connecting sleeve through a limiting support and a locking screw. A sample reserving head is arranged above the sample reserving bottle, two liquid inlet holes are formed in the sample reserving head in parallel and are respectively communicated with a liquid injection hole formed in the center of the sample reserving head, and one liquid inlet hole is communicated with a liquid discharge hole in one side of the measuring cylinder through a pipeline and a second one-way valve; and the other liquid inlet hole is communicated with a water sample pipeline. The device can realize quantitative addition of the fixing agent, and is accurate in metering, stable and reliable.

The invention relates to compositions, in particular to fixative compositions for cosmetic products, including (1) at least one polyphenol X comprising at least two different phenol groups; (2) at least one (poly)glycerolated and / or polyoxyalkylenated nonionic compound Y; (3) a solvent system including (i) water in an amount of at least about 10% by weight relative to the total weight of the composition; and (ii) at least one C2-C5 monohydric alcohol in an amount effective to inhibit the formation of a precipitate of compound X and compound Y in the composition before application; and (4) at least one non-mineral filler, as well as methods, kits and assemblies comprising such compositions in container(s) or in application. Figure for abstract: None

A fixative contains carboxylic acid, preferably acetic acid, for parasitological samples. An exemplary aqueous fixative solution for parasitological samples comprises: a) a C2 to C6 carboxylic acid (preferably acetic acid) at a concentration of 0.5M or greater; and b) a C2 to C6 carboxylate salt or halide salt at a concentration of 0.02M or greater, preferably 0.04M or greater. An optional composition comprises 1.3M acetic acid, 12 mM sodium benzoate, 0.9% calcium chloride, 0.9% calcium bromide, 100 μg / ml menthol and 350 μg / ml thymol. The fixative is free of formaldehyde or other hazardous compounds, and exhibits good killing and staining properties when used with parasitological samples such as ova and helminths.

COMPOSITIONS SUITABLE AS FIXATIVES The invention relates to compositions, in particular to fixative compositions for cosmetic products, including (1) at least one polyphenol X comprising at least two different phenol groups; (2) at least one (poly)glycerolated and / or polyoxyalkylenated nonionic compound Y; (3) a solvent system including (i) water in an amount of at least about 10% by weight based on the total weight of the composition; and (ii) at least one C2-C5 monohydric alcohol in an amount effective to inhibit the formation of a precipitate of compound X and compound Y in the composition before application; (4) at least one chelating agent; and (5) at least one ascorbic acid compound, as well as methods, kits and assemblies comprising such compositions in container(s) or in application. Figure for abstract: None

The present invention relates in general to the fields of personal care products, cosmetics and fragrances and to compositions of matter used in consumer products. More specifically, the invention relates to the use of isopropyl myristate (IPM) or cetearyl ethylhexanoate (CEH) or a mixture of IPM and CEH in a perfume composition as a perfume fixative and to a method of fixing fragrance in perfume compositions and personal care products containing such perfume compositions.

A composition for and method of practicing nasal hygiene to wash and moisturize the nasal passage. Where the nasal wash comprises a liquid homogenized compound of water, chlorine dioxide (or source thereof), olfactory stimulants, unsaturated fatty acids, and fixing agents. Where the unsaturated fatty acid component comprises from 0.01% to 1 % by weight of the compound.

SUITABLE COMPOSITIONS AS FIXERS The invention relates to compositions, in particular fixative compositions for cosmetic products, comprising (1) at least one polyphenol X comprising at least two different phenol groups; (2) at least one nonionic compound Y (poly)glycerol and / or polyoxyalkylated; (3) a solvent system comprising (i) water in an amount of at least about 10% by weight relative to the total weight of the composition; and (ii) at least one C2-C5 monoalcohol in an amount effective to inhibit the formation of a precipitate of compound X and compound Y in the composition prior to application; and (4) at least one gelling agent, as well as necessary methods and assemblies comprising such compositions in a container or containers or in application. Figure for abstract: None

The following are described: coated or uncoated co-granules containing a) 10 to 40 wt% cyclic sulfonimine, b) 20 to 60 wt% bleach activator selected from the group consisting of tetraacetylethylenediamine, decanoyloxybenzoic acid or mixtures thereof, c) 0.1 to 5 wt% organic acid in the form of the free acid and / or a salt thereof, d) 1 to 15 wt% polyvinyl alcohol as a binder, e) 10 to 25 wt% drying agent selected from the group consisting of alkali sulfate, alkali carbonate, alkaline earth sulfate, alkaline earth carbonate, alkaline earth oxide, aluminum oxide, hydrates of these compounds or mixtures of two or more thereof, f) 0 to 0.5 wt% dye and / or pigment, and g) 0 to 5 wt% water, wherein the percentages refer to the sum of the components a) to g) and the sum of the components a) to g) equals 100 percent.These co-granules are stable for extended storage periods and contain ingredients that do not tend to discolor during storage or, in the case of colored co-granules, do not tend to change color.

COMPOSITIONS SUITABLE AS FIXATIVES The invention relates to compositions, in particular to fixative compositions for cosmetics, comprising (1) at least one polyphenol X comprising at least two different phenol groups; (2) at least one (poly)glycerolated and / or polyoxyalkylenated nonionic compound Y; (3) a solvent system comprising (i) water in an amount of at least about 10% by weight based on the total weight of the composition; and (ii) at least one C2-C5 monohydric alcohol in an amount effective to inhibit the formation of a precipitate of compound X and compound Y in the composition before application; and (4) at least one sulfur-containing antioxidant, as well as methods, kits and assemblies comprising such compositions in container(s) or in application. Figure for abstract: None

The invention discloses a low-energy consumption solvent dilution device for pre-treating samples comprising an accommodating unit, the accommodating unit including a case and an accommodating portion arranged inside the case; an input unit, which including an inlet, a second outlet and a third outlet extending into the case; a cleaning unit, which including a receiving assembly arranged below the second outlet and the third outlet, and a conveying assembly communicated with a receiving assembly. The input unit including a first tube connecting with the inlet, and a second tube and a third tube extending out of the second outlet and the third outlet, respectively.The present invention completes dispensing and diluting the sample fixative in the box, the dispersion of the fixative is reduced. Avoid unnecessary contact for operators. It improves the safety and accuracy of the experiment, and significantly reduces energy consumption and labor costs.

Provided is an oil-gelling agent that makes it possible to gel a variety of oil agents, such as hydrocarbon oils and higher alcohols. The oil-gelling agent is a copolymer that includes, as structural units,(a) an amphiphilic (meth)acrylic monomer represented by general formula (1)(in which R1 is a hydrogen atom or a methyl group, and R2 is a straight-chain or branched C1-21 alkyl group) and(b) a hydrophilic (meth)acrylic monomer represented by general formula (2)(in which R1 is a hydrogen atom or a methyl group, and R3 is a straight-chain or branched C2-10 alkylene group),the mass ratio (b) / (a) between (a) and (b) satisfying 0<((b) / (a))≤0.2.

The invention discloses a protective agent and a preparation method thereof.The protective agent comprises a component A and a component B. The component A comprises, by weight, 80-90 parts of epoxy resin; 1-2 parts of an antioxidant; 1.5 to 3 parts of a coupling agent; 4-6 parts of a toughening agent; 1-2 parts of a light stabilizer; 0.1 to 1 part of an accelerant; the component B comprises 100 parts of a modified fixing agent. The protective agent has excellent mechanical strength and weather resistance, and can effectively prolong the service life of a protected object.