1067results about How to "Good thickening effect" patented technology

A mixture comprising A) a copolymer comprising from about 70 to about 79% by weight of units derived from ethylene, and having (a) Mw measured by gel permeation chromatography employing polystyrene standard ranging from about 50,000 up to less than 130,000 and / or (f) SSI≦18; (b) density (D) ranging from about 845 to about 895 kg / m3; (c) Mw / Mn less than 3; (d) melting point (Tm) measured by differential scanning calorimeter ranging from about 15° C. to about 60° C.; and (e) degree of crystallinity≧15%, and B) an amorphous polymer having Mw ranging from about 130,000 to about 1,000,000 having degree of crystallinity≦5%. In one embodiment the density and the melting point of the copolymer A) fulfill the expression Tm≦1.247 D−1037. In another embodiment, the percentage content (E: % by weight) of repeating units derived from ethylene and melting point (Tm: ° C.) of the copolymer A) fulfill the expression 3.44E−206≧Tm. Also, additive concentrates and lubricating compositions comprising the components making up the mixture.

The invention provides an acrylamide polymer thickener and a preparation method thereof, and a fracturing fluid, wherein the acrylamide polymer thickener is composed of the components by the mass percentage: 20%-45% of a hydrophilic propenyl monomer, 4%-6% of a hydrophobic propenyl monomer, 1%-2% of an emulsifier, 0.2%-0.5% of an initiator, a latent crosslinking agent and the balance water, wherein the latent crosslinking agent accounts for 0.5%-1.8% of the total mass of the hydrophilic propenyl monomer and the hydrophobic propenyl monomer; the acrylamide polymer thickener provided by the invention solves the technical problems in the prior art that a polymer thickener has poor temperature resistance and salt tolerance and poor shearing stability, and the prepared acrylamide polymer thickener has high-temperature performance, and can effectively meet the requirements of on-site construction of slick water fracturing.

The invention discloses a comb polyurethane associated thickener and a preparation method and an application thereof and the preparation method comprises the following steps: adopting primary amine and diglycidyl ether to react, obtaining hydrophobic diol; then adopting polyether diol, catalyst, diisocyanate, hydrophobic diol and alkanol to react, using precipitate for precipitation after finishing the reaction, drying the precipitation and obtaining the comb polyurethane associated thickener. More than two hydrophobic groups (long chain alkyl) in the molecules of the comb polyurethane associated thickener so that the consistency of the emulsion paint can be greatly improved, the emulsion paint has not only high viscosity under low shear but also low applicable viscosity under high shear, and the quality of the emulsion paint is increased. The polyurethane associated thickener is applicable to thickening the water-containing system and can be used in emulsion paint, varnish, adhesive, leather, papermaking, dyeing and printing, ink, cosmetics and the like.

Unique abrasive and / or thickening materials that are in situ generated compositions of precipitated silicas and silica gels are provided. Such compositions exhibit different beneficial characteristics depending on the structure of the composite in situ generated material. With low structured composites (as measured via linseed oil absorption levels from 40 to 100 ml oil absorbed / 100 g composite), simultaneously high pellicle film cleaning properties and moderate dentin abrasion levels are possible in order to accord the user a dentifrice that effectively cleans tooth surfaces without detrimentally abrading such surfaces. Increased amounts of high structure composite materials tend to accord greater viscosity build and thickening benefits together with such desirable abrasion and cleaning properties, albeit to a lesser extent than for the low structure types. Thus, mid-range cleaning materials will exhibit oil absorption levels from an excess of 100 to 150, and high thickening / low abrasion composite exhibit oil absorption properties in excess of 150. Such an in situ, simultaneously produced precipitated silica / silica gel combination provides such unexpectedly effective low abrasion and high cleaning capability and different thickening characteristics as compared to physical mixtures of such components. Encompassed within this invention is a unique method for making such gel / precipitated silica composite materials for such a purpose, as well as the different materials within the structure ranges described above and dentifrices comprising such.

Unique abrasive and / or thickening materials that are in situ generated compositions of precipitated silicas and silica gels are provided. Such compositions exhibit different beneficial characteristics depending on the structure of the composite in situ generated material. With low structured composites (as measured via linseed oil absorption levels from 40 to 100 ml oil absorbed / 100 g composite), simultaneously high pellicle film cleaning properties and moderate dentin abrasion levels are possible in order to accord the user a dentifrice that effectively cleans tooth surfaces without detrimentally abrading such surfaces. Increased amounts of high structure composite materials tend to accord greater viscosity build and thickening benefits together with such desirable abrasion and cleaning properties, albeit to a lesser extent than for the low structure types. Thus, mid-range cleaning materials will exhibit oil absorption levels from an excess of 100 to 150, and high thickening / low abrasion composite exhibit oil absorption properties in excess of 150. Such an in situ, simultaneously produced precipitated silica / silica gel combination provides such unexpectedly effective low abrasion and high cleaning capability and different thickening characteristics as compared to physical mixtures of such components. Encompassed within this invention is a unique method for making such gel / precipitated silica composite materials for such a purpose, as well as the different materials within the structure ranges described above and dentifrices comprising such.

The invention relates to Sphingomonas sp. TP-5 and a method and an application of the same for producing welan gum. A strain of the invention is prepared by separating and acclimating sugar-contained wastewater in a molasses plant, has a systematic name of Sphingomonas sp. and a preservation number of CGMCCNo.3097, not only can grow in nutrient media of beef broth, LB and nutrient agar, but also can grow in a sugar-contained inorganic-salt culture medium. The TP-5 strain can be fermented in the sterile culture medium containing sugar, inorganic salt and water at a temperature condition of 28-37 DEG C; ymotic fluid is extracted to obtain the welan gum achieving a temperature-resistant limit value of 150 DEG C; and potassium chloride in different concentrations is added so that a welan gum solution remarkably improves the viscosity, enhances the temperature stability, does not vary the viscosity with temperature and presents stronger temperature tolerance, thereby being applied to seawater drilling mud and a high salinity reservoir viscous water flooding system.

The invention discloses a probiotics troche and a preparation method thereof. Functional leavening agents and germinated brown rice, Chinese herb medicine extract with anti-cold and hot irritability and a stabilizer capable of effectively enhancing the stability are added into a yoghourt fermenting process; poikilothermal yogurt fermentation enables proliferation of lactic acid bacteria to the maximum extent, so that the anti-cold and hot irritability of lactic acid bacteria is improved. yogurt and fruit and vegetable slurry are pre-treated by using a non-hot-working technology so as to prevent infectious microbe infection in the process, improve the juice yield of the fruit and vegetable slurry, increase the content of soluble cellulose of the fruit and vegetable slurry and prevent the fruit and vegetable slurry from brown stain. Moreover, when the fruit and vegetable slurry and the yogurt are mixed, a scientifically compounded freezing protecting agent which is relatively good in anti-freezing effect is added. Finally, the probiotics troche which is smooth in taste, uniform in texture, stable in state, natural in quality, high in viable count, strong in functionality and long in expiration data is prepared. The viable count is (1.75-2.55)x10<11> CFU / g. At normal temperature, the expiration data is 30-36 months.

The invention discloses an acrylamide copolymer and its preparation method and application. The acrylamide copolymer contains a structural unit A, a structural unit B and a structural unit C. the structural unit A is a unit with a structure as shown in the formula (1) and / or the formula (2); the structural unit B is a unit with a structure as shown in the formula (3) and / or the formula (4); and the structural unit C is a unit with a structure as shown in the formula (5) and / or the formula (6). In addition, with the total mole number of the structural units in the acrylamide copolymer as the reference, the structural unit A accounts for 5-25 mol%, the structural unit A accounts for 60-90 mol%, and the structural unit C accounts for 1-30 mol%. Viscosity-average molecular weight of the acrylamide copolymer is 1-10 million. The acrylamide copolymer has excellent thickening performance under conditions of high temperature and high salinity, and gel formed after crosslinking has good shearing resistance.

The invention discloses a high performance alkali swelling thickener which is characterized by comprising the components in parts by weight as follows: 1000-1010 parts of mixed acrylate monomer, 5-60 parts of emulsifier, 1-50 parts of initiator, 10-150 parts of protective colloid and 1600-1900 parts of deionized water. The mixed acrylate monomer is a mixture of soft monomer, a hard monomer and a crosslinking functional monomer. The invention further discloses a preparation method of the high performance alkali swelling thickener. The high performance alkali swelling thickener provided by the invention has the advantages of high swelling performance, high viscosity and high transparency, and is high temperature and low temperature resisting. The thickener is not only suitable for daily cosmetic and home nursing products and bonders, but also suitable for the field of well drilling in oil fields.

The invention discloses an agricultural thickening synergist. The agricultural thickening synergist comprises the following components by mass percent: 1-40% of fatty alcohol polyoxyethylene ether sulfate, 0-30% of alkyl glycoside, 5-15% of sodium lauroyl sarcosinate, 5-10% of sodium alkyl benzene sulfonate, 5-15% of ammonium sulfate and the balance of water. The invention also discloses an application of the agricultural thickening synergist in a glyphosate isopropamide salt water agent and a glyphosate salt water agent. The agricultural thickening synergist has the characteristics of better wetting synergy effect, more stable performance and better thickening synergy effect; by using the glyphosate salt water agent, the agricultural thickening synergist has high viscosity, the adhesive force and moisture property of the liquid medicine are improved, the internal absorption and conductivity of the glyphosate are realized, and the pharmacological function can be fully realized. Besides, the agricultural thickening synergist has excellent biological degradability, has high safety to the environment and organisms, and meets the development requirement of the agricultural surface active agent in the future.

The invention relates to fireproof paint, in particular to tunnel fireproof paint, which is prepared from the following ingredients: a major bonding agent (ordinary Portland cement), inorganic heat insulation filling materials (expanded perlite, expanded vermiculite, meerschaum, kaoline and wollastonite powder) and addition agents (calcium formate, starch ether, redispersible latex powder, methyl cellulose ether and polypropylene fiber). Through the unique addition agent combination and the prescription mixture ratio, the tunnel fireproof paint has the advantages that the construction performance is obviously improved, at the same time, the integral overall performance of the tunnel fireproof paint is greatly improved, and the tunnel fireproof paint has the characteristics of stable fireproof performance, high adhesion intensity and stable physicochemical performance. Simultaneously, the product per se generates no toxic substance in the construction and burning processes, has the effects of environment protection and high practicability, and can be widely used for the fireproof protection of buildings such as highways, railways, subway tunnels and the like.

The invention discloses a cationic-nonionic composite intercalated organic montmorillonite and a preparation method thereof. The method comprises the steps of: refining calcium montmorillonites; conducting a hydration treatment to the calcium montmorillonites, i.e. making the refined calcium montmorillonites into water suspension which is then subjected a hydration treatment through a combinationof mechanical stirring and ultrasonic effect; preparing cationic-nonionic composite intercalated organic montmorillonite materials, i.e. respectively under the effects of ultrasonic dispersion and mechanical stirring, employing an organic cationic surfactant and a nonionic surfactant to intercalate the hydrated montmorillonite suspension in order. The interlamellar spacing of the organic montmorillonite provided in the invention can reach more than 4.6nm. Characterized by high thermostability, uniform dispersion in an organic phase, high stripping degree and excellent performance, the cationic-nonionic composite intercalated organic montmorillonite can be applied to the field of macromolecule nanocomposite preparation as a filling material with excellent performance.