48 results about "Ethyl methyl cellulose" patented technology

The present composition is capable of forming a particle film and comprises: (a) less than 99.65% by weight of at least one particle; (b) at least one volumizing agent selected from the group consisting of: (i) cellulose selected from the group consisting of ethyl hydroxy ethyl cellulose, hydroxy ethyl cellulose, hydroxy propyl cellulose, hydroxy ethyl methyl cellulose, hydroxy propyl methyl cellulose, methyl cellulose, ethyl cellulose, and ethyl methyl cellulose and present in an amount greater than 0.35% by weight; and (ii) non-cellulosic component or cellulose other than said cellulose (i) present in an amount of at least 0.05% by weight; and optionally (c) at least one spreader. The composition may be used to form agricultural films.

The invention discloses environment-friendly flexible interior wall putty and a preparation method thereof. The environment-friendly flexible interior wall putty comprises the following components by mass percent: 20-26% of water, 20-27% of acrylic emulsion, 5-10% of heavy calcium carbonate powder, 10-15% of light calcium carbonate powder, 12-19% of talcum powder, 5-7% of blanc fixe, 5-8% of bentonite, 2-3.7% of hydroxyethyl methyl cellulose ether, 1-3% of an antifreezing agent, 0.1-0.3% of a defoamer and 0.1-0.3% of a dispersant. The interior wall putty disclosed by the invention has the advantages of good flexibility, strong waterproofness, good crack resistance, fine and smooth surface texture after being scraped and the like, and is environment-friendly and not easy to atomize.

The invention discloses a chloroethylene suspension polymerization terminator and a preparation method and a use method thereof, belonging to a terminator used in a chloroethylene polymerization process. The chloroethylene suspension polymerization terminator is characterized by being an aqueous emulsion dispersion liquid and consisting of the following raw materials in parts by weight: 100 parts of deionized water, 2-30 parts of organic tin thermal stabilizer, 0.3-4.5 parts of polyvinyl alcohol I, 0-3.1 parts of polyvinyl alcohol II, 0.2-4.5 parts of cellulose ether and 0.1-3.5 parts of chain terminator, wherein the deionized water is industrial secondary desalted water; the alcoholysis degree of the polyvinyl alcohol I is between 75-85 percent; the alcoholysis degree of the polyvinyl alcohol II is between 50-60 percent; and the cellulose ether is methyl cellulose (MC), hydroxyethylmethylcellulose (HEC) or hydroxypropyl methyl cellulose (HPMC). The invention provides a chloroethylene suspension polymerization terminator which can be used for effectively terminating a chloroethylene polymerization reaction and remarkably improving the aging whiteness and heat resistance of polymerized resin, and the preparation method and the use method thereof.

The invention relates to a grouting material. The grouting material is prepared by mixing silicate cement, hydroxyl ethyl methyl cellulose, natural guar gum, silica fume, glycine betaine and water in a weight ratio of (1-1.2):(0.001-0.008):(0.001-0.01):(0.1-0.2):(0.001-0.005):1. According to the grouting material, the slurry viscosity and condensing performance can be improved due to the interaction of silica fume, hydroxyl ethyl methyl cellulose and natural guar gum, the viscosity and strength can be further improved due to the glycine betaine and natural guar gum, the elastic performance can be regulated according to the condition, and the aqueous dispersion effect in various water qualities can be resisted.

A method for imparting a stress tolerance to a plant that can provide the plant with such a stress tolerance that enhances growth in an environment where a variety of stresses on the plant occur is provided. The method for imparting a stress tolerance to a plant includes the step of applying, to a plant placed under a stressful cultivation condition that yields a plant stress level of 111 to 200%, a plant stress tolerance imparting composition containing at least one cellulose derivative selected from the group consisting of methyl cellulose (MC), hydroxymethyl cellulose (HMC), ethyl cellulose (EC), hydroxyethyl cellulose (HEC), propyl cellulose (PC), hydroxypropyl cellulose (HPC), hydroxypropyl methyl cellulose (HPMC), hydroxyethyl methyl cellulose (HEMC), hydroxyethyl propyl cellulose (HEPC), methyl ethyl cellulose (MEC), methyl propyl cellulose (MPC) and ethyl propyl cellulose (EPC); catechins; and water, the cellulose derivative being contained in an amount of 45.0 to 99.5 wt % of the total components of the plant stress tolerance imparting composition except water. The present invention also provides the plant stress tolerance imparting composition and use of the plant stress tolerance imparting composition.

The invention discloses modified hydroxyethyl methyl cellulose for an enhanced ceramic tile adhesive. The modified hydroxyethyl methyl cellulose is prepared from the following raw materials in percentage by mass: 54%-94% of hydroxyethyl methyl cellulose, 5%-40% of starch ether, 0.5%-3% of a dispersing agent and 0.5%-3% of a rheological agent, wherein the hydroxyethyl methyl cellulose is prepared from cellulose powder, caustic soda granules, caustic soda liquid, chloromethane and ethylene oxide. The preparation method comprises the following steps: (1) weighing the raw materials, (2) mixing cellulose powder, caustic soda particles, liquid caustic soda, chloromethane and ethylene oxide, carrying out etherification reaction, and then sequentially carrying out neutralization, washing, centrifugation, drying and crushing to obtain hydroxyethyl methyl cellulose, and (3) mixing and stirring hydroxyethyl methyl cellulose, starch ether, a dispersing agent and a rheological agent to obtain the adhesive. The obtained product is stable in quality, has the function of improving the tensile bonding strength of the ceramic tile adhesive, is applied to modern ceramic tiles with large sizes and large masses, and can remarkably improve the use safety of the ceramic tiles.

The invention discloses a decolorizing resin for lactase. The decolorizing resin comprises styrene, divinylbenzene, gelatin, juncus roemerianus, methyl isobutyl carbinol, hydroxyethyl methylacrylate, triallyl cyanurate, N-phenylmaleimide, chitosan, vitamin C magnesium phosphate, benzoyl peroxide, polyvinyl alcohol, tributyl phosphate, salicylic acid, hydroxyethyl methyl cellulose and a pore-foaming agent. The invention also discloses a preparation method of the decolorizing resin. The preparation method comprises the following steps of: mixing gelatin, chitosan, hydroxyethyl methyl cellulose, polyvinyl alcohol and salicylic acid to prepare a liquid phase; mixing styrene, divinylbenzene, methyl isobutyl carbinol, hydroxyethyl methylacrylate, triallyl cyanurate, N-phenylmaleimide, benzoyl peroxide, tributyl phosphate and a pore-foaming agent to prepare an oil phase; mixing the juncus roemerianus fiber with vitamin C magnesium phosphate to prepare a solid phase; and mixing the three phases to prepare the polymer. The decolorizing resin is high in decoloration efficiency, short in time and small in lactase activity loss after decoloration.

The invention relates to a method and a device for preparing modified cellulose, the device comprises a reaction kettle, the reaction kettle is internally provided with a solid-liquid space for reaction and a gas phase space for accommodating gas overflowing from the solid-liquid space, an outer circulation system is arranged outside the reaction kettle, the inlet end of the outer circulation system is communicated with the gas phase space in the reaction kettle, the inlet end of the outer circulation system is communicated with the gas phase space, and the outlet end of the outer circulatingsystem extends into the reaction kettle. The device is used for preparing hydroxypropyl methyl cellulose, hydroxyethyl methyl cellulose and other substances from cellulose, when cellulose etherification reaction is carried out, liquid in the solid-liquid space is heated and gasified, enters the gas-phase space firstly and then circularly enters the reaction kettle through the outer circulation system, so that the pressure in the kettle can be reduced, and the overall safety performance is guaranteed, the pressure resistance and sealing performance of the reaction kettle can be reduced, meanwhile, the liquid continuously passes through the outer circulation system and returns into the reaction kettle, so that the reaction liquid in the reaction kettle is always in an excessive state, the reaction speed is high, and the production efficiency is high.

The present invention provides a liquid meal flavoring agent which has health care function. The present invention comprises liquid flavoring agent, soluble or suspended differential fiber. The concentration of the soluble or suspended differential fiber is 0.005%-25 %( a weight-to-volume ratio), and the better concentration is 0.005%-10% (a weight-to-volume ratio). The soluble or suspended differential fiber is selected from methylcellulose, hydroxide propyl methyl cellulose, hydroxide propyl ethyl cellulose, hydroxide propyl cellulose, hydroxide ethyl cellulose, hydroxide ethyl methyl cellulose, hydroxide methyl cellulose, carboxymethyl cellulose and sodium, kalium, calcium salt and so on, or one kind or kinds of microcrystalline cellulose. The flavoring agents are vinegar, sauce and cooking wine. Two methods of making the two kinds of liquid meal flavoring agents are also provided. The present invention has certain viscosity and good thermal stability, can replenish the human needed soluble or suspended differential fiber, has health care function, is good to taste and convenient to take, is not easy to forget taking, and has simple and practical manufacturing method.

The invention provides a special admixture for self-compacting concrete and a preparation method and application thereof, and the special admixture for self-compacting concrete comprises the following materials in parts by weight: 370-400 parts of polycarboxylic acid water-reducing ether; 100 to 130 parts of polycarboxylic acid pure slump retaining type ether; 0-20 parts of borax; 8 to 12 parts of sodium gluconate; 8-12 parts of white sugar; 3-7 parts of sodium citrate; 9-27 parts of polyethylene glycol; 0.1 to 0.4 part of polyacrylamide; 0.1 to 0.5 percent of hydroxyethyl methyl cellulose ether; 0.1 to 0.5 part of a defoaming agent; 0.2 to 0.6 part of an air entraining agent; and 430-460 parts of water. The admixture special for the self-compacting concrete provided by the invention is large in flowability and good in wrapping, can solve the problem of engineering structures which cannot be constructed or are difficult to construct by using common concrete, and meanwhile, avoids the engineering quality problem caused by vibration leakage and excessive vibration of the common concrete. By adopting the admixture special for the self-compacting concrete provided by the invention, when the concrete is constructed, time and labor are saved, noise is avoided, the construction speed is high, the labor intensity of workers is reduced, and energy is saved.