10 results about "Condensation polymer" patented technology

This invention relates to the field of epoxy resin composite materials technology, specifically to an environmentally friendly epoxy resin composite material for the lining of fructose syrup storage and transportation tanks and its preparation method. The composite material of this invention consists of bisphenol F type epoxy resin, a flexible curing agent, nano-antibacterial reinforcing fillers, and additives. The flexible curing agent is a dimer acid-polyetheramine-cashew phenol Mannich base condensation polymer, and the nano-antibacterial reinforcing filler is nano-TiO2@ε-polylysine-silane coupling agent hybrid particles. The composite material of this invention possesses excellent flexibility, acid resistance, antibacterial properties, and low water absorption; it also exhibits strong adhesion, no migration of heavy metals or toxic organic antibacterial agents, and meets food contact safety regulations, making it suitable for the lining protection of fructose syrup storage and transportation tanks.

This invention discloses a ketone-aldehyde-amine condensation polymer for drilling fluids, its preparation method, and its applications, belonging to the field of oilfield chemical technology. The preparation method includes: using water as a solvent, mixing ketone monomers, aldehyde monomers, and amine monomers in a specific molar ratio, and carrying out a condensation polymerization reaction at 60-85 °C for 4-10 h under alkaline conditions (pH 8.0-10.0) and nitrogen protection, followed by neutralization to obtain the product. This method is simple and environmentally friendly. The obtained polymer has a unique molecular structure, exhibiting excellent high-temperature resistance (≥180 °C) and high-salt resistance (salt resistance ≥20%), and high viscosity retention and good stability in high-density potassium formate and other brine drilling fluids. Simultaneously, this polymer possesses excellent shale inhibition and filtration loss reduction capabilities, significantly improving drill cuttings recovery rate and controlling high-temperature, high-pressure filtration loss. The polymer of this invention is particularly suitable for high-temperature, high-salt drilling fluid systems in deep wells, ultra-deep wells, and complex formations, with broad application prospects.

A viscosity modifier for a condensation polymer may include a chain extender comprising at least one reactive monomer and at least one vinyl monomer copolymerizable with the reactive monomer, the chain extender being present in an amount ranging from 15 to 70 wt % of the viscosity modifier; and a non-condensation carrier resin present in an amount ranging from 30 to 85 wt % of the viscosity modifier. Condensation polymer compositions, methods of forming viscosity modifiers, and methods of molding condensation polymer compositions are also provided.

A molded stator comprising: a stator having a stator core and a coil wound on the stator core; and a molding material covering the stator, wherein the molding material is a cured product of a thermosetting resin composition comprising (A) a saturated polyester resin, (B) an unsaturated polyester resin, (C) an olefinic unsaturated monomer, (D) a thermal polymerization initiator, (E) glass fiber, and (F) an inorganic filler, wherein the (B) unsaturated polyester resin comprises at least a (B-1) unsaturated polyester resin, the (B-1) unsaturated polyester resin being a condensation polymer comprising a mixture of a diol and an unsaturated polybasic acid, and the (B-1) unsaturated polyester resin containing a structure derived from propylene glycol and a structure derived from neopentyl glycol.

A method for making modified latex particles, wherein the particles comprise condensation polymers bonded to functional groups on the latex particles and the method for forming the condensation polymer comprises reacting the amino groups present on the latex particles with (i) at least a first polyfunctional compound, having at least two functional moieties reactive with said functional groups of the latex, or (ii) at least a first polyfunctional compound, having at least two functional moieties reactive with said functional groups of the latex and at least a first amine compound, comprising amino groups selected from the group consisting of ammonia, a primary and a secondary amine to form a first condensation polymer reaction product comprising ion exchanging sites and a first unreacted excess of functional moieties.

The application belongs to the technical field of sodium ion batteries, and particularly relates to a polymer dispersant of a positive electrode material of a sodium ion battery and a sodium ion battery, which comprises, by mass fraction, 10-40 parts of acrylonitrile-acrylate copolymer A, 50-85 parts of amine-containing condensation polymer B and 3-10 parts of small molecule carboxylic acid additive C; the polymer dispersant exists in the form of an N-methylpyrrolidone solution, has a solid content of 20-40 wt%, and the solid content is the sum of the mass of the acrylonitrile-acrylate copolymer A, the amine-containing condensation polymer B and the small molecule carboxylic acid additive C, which accounts for the percentage of the total weight of the polymer dispersant; the combination of the above components can effectively improve the solid content under the premise that the viscosity of the positive electrode main material remains unchanged, and is not prone to gelation, so as to facilitate subsequent coating and rolling, improve the compaction density of the sodium battery, and effectively improve the production efficiency of the sodium battery.

A bullet (ammunition projectile) comprising a branched condensation polymer and a filler, wherein the filler is present in an amount from about 10% to 65% by volume of the branched condensation polymer and filler is described. The bullet may be made by heating a mixture comprised of a branched condensation polymer and a filler comprised of a first and second filler having differing densities and differing particle size distribution to form a molten mixture and injecting the molten mixture into a mold to form the ammunition projectile allowing for the tailoring of the characteristics of the bullet for differing applications.

The present invention relates to a method for recovering aromatic dicarboxylic acids from a waste gas stream of a depolymerization reaction of a condensation polymer, the waste gas stream containing a metal carboxylate of the aromatic dicarboxylic acid to be recovered, wherein a first aromatic dicarboxylic acid constituting the basis of the condensation polymer is precipitated from the waste gas stream at a first pH value, and after subsequent solid-liquid separation, a further aromatic dicarboxylic acid constituting the basis of the condensation polymer is precipitated from the liquid phase obtained by solid-liquid separation at a second pH value lower than the first pH value.

This disclosure relates to polyolefin compositions comprising polyamide condensation polymers of C32-C44 dimer dioic acids and C2-C44 aliphatic diamines. The polyamide condensation polymers may be used in a range of concentrations with additional additives. The use of the condensation polymers described herein in polyolefin compositions helps prevent surface defects when the polyolefin compositions are processed into final products.

A molded stator comprises: a stator having a stator core and a coil wound on the stator core; and a molding material covering the stator, wherein the molding material is a cured product of a thermosetting resin composition containing (A) a saturated polyester resin, (B) a thermosetting resin, (C) an olefinic unsaturated monomer, (D) a thermal polymerization initiator, (E) glass fiber, (F) an inorganic filler, and (G) a thickener, wherein (B) the thermosetting resin contains at least (B-1) an unsaturated polyester resin, and (G) calcium hydroxide, wherein in the thermosetting resin composition, when the total amount of (B) the thermosetting resin and the aforementioned (C) olefinic unsaturated monomer is set to 100 parts by mass, (G) The content of thickener is 0.2 to 9 parts by mass. (A) Saturated polyester resin is a condensation polymer of diol and saturated polyacid. The saturated polyacid contains aromatic saturated polyacid or its anhydride and aliphatic saturated polyacid. In (A) saturated polyester resin, the molar ratio of the structure derived from aromatic saturated polyacid or its anhydride to the structure derived from aliphatic saturated polyacid is 20:80 to 80:20. (A) saturated polyester resin contains: block (X) as a condensation polymer of diol and aromatic saturated polyacid or its anhydride and block (Y) as a condensation polymer of diol and aliphatic saturated polyacid. The weight average molecular weight of block (X) is 3000 to 5000.