29 results about "Sebacic acid" patented technology

This invention discloses a low-conductivity coolant for microchannel water-cooled plates and its application. The coolant, by mass fraction, comprises 85-95% propylene glycol, 1-5% deionized water, 0.05-0.15% imidazole, 0.1-0.3% toluenetriazole, 0.10-0.4% sebacic acid, 0.1-0.3% benzoic acid, 3-4% triethanolamine, and 0-0.06% defoamer. The coolant is stirred evenly with deionized water, and the resulting mixture is placed in the micron-level fluid channels inside the microchannel water-cooled plate. The high-speed flow of the mixture absorbs the heat dissipated by the chip. The coolant prepared by this invention exhibits low corrosivity, high reserve alkalinity, low foaming tendency, and low conductivity. This coolant can be used safely and efficiently in microchannel structures, meeting the growing heat dissipation needs of AI big data computing centers.

This invention belongs to the field of polymer material additives, and provides a fluorescent whitening agent anti-migration stabilizing excipient and its preparation method. The method involves intercalating 4,4'-bis(2-sulfonate sodium styryl)biphenyl into a zinc-aluminum layered double hydroxide, and then surface-coating it with ethanolamine-modified polypropylene grafted with maleic anhydride compatible components. This is followed by melt granulation with a polypropylene carrier resin, bis(2,2,6,6-tetramethyl-4-piperidinyl) sebacate, and 2-(2H-benzotriazol-2-yl)-4,6-di-tert-amylphenol. This achieves low migration, high retention, and stable dispersion of the fluorescent whitening agent, solving the problems of easy migration, insufficient thermo-photoaging stability, and difficulty in balancing processing window and toughness in polypropylene systems. This method is suitable for the industrial preparation and application of polypropylene whitening modified materials.

The utility model provides a kind of cracking still heating device for producing sebacic acid, including cracking still body, jacket, fused salt furnace, fused salt ground groove, cracking still body includes upper and lower intercommunication arrangement's large kettle and small kettle, jacket includes upper section jacket and lower section jacket, upper section jacket is wrapped in large kettle outer wall side, spiral baffling bulkhead is equipped in upper section jacket, the inner edge of spiral baffling bulkhead is in abutment with large kettle outer wall, the upper end and the lower end of flow channel are equipped with first fused salt outlet and first fused salt inlet respectively, lower section jacket is wrapped in small kettle outer wall side, lower section jacket is hollowly arranged, second fused salt outlet and second fused salt inlet are respectively equipped in lower section jacket upper part and lower part, fused salt ground groove outlet is connected with first fused salt inlet and second fused salt inlet respectively via fused salt pump, fused salt furnace outlet is connected with fused salt ground groove inlet, and fused salt furnace inlet is connected with second fused salt outlet and second fused salt outlet respectively.The device can effectively control the temperature of different regions of cracking still.

The present invention relates to an oil-dispersed cosmetic composition having excellent cleansing efficacy and, more specifically, to an oil-dispersed cosmetic composition having excellent cleansing efficacy and formulation stability by optimally mixing a hydrogenated castor oil / sebacic acid copolymer as an oil thickener with at least two types of surfactants.

This application relates to a method for producing cadaverine dicarboxylate (cadaverine sebacate, cadaverine undecane diate, or cadaverine dodecane diate), comprising a first step of culturing L-lysine-producing microorganisms in a medium supplemented with dicarboxylic acid in the form of diammonium dicarboxylate to obtain lysine dicarboxylate, and a second step of converting the lysine dicarboxylate to cadaverine dicarboxylate. According to this application, by carrying out the process according to the above procedure, a high-purity cadaverine dicarboxylate (cadaverine sebacate, cadaverine undecane diate, or cadaverine dodecane diate) can be obtained without ion resin exchange, decarboxylation, or distillation steps.

This invention belongs to the field of polymer materials and relates to a method for preparing a multifunctional emulsion antioxidant and its application, specifically to an emulsion antioxidant that also absorbs ultraviolet light and its application. A multifunctional emulsion-type antioxidant comprises the following components: a phenolic primary antioxidant, wherein the phenolic primary antioxidant comprises a mixture of p-cresol and dicyclopentadiene copolymer (TH-CPL) and triethylene glycol bis[β-(3-tert-butyl-4-hydroxy-5-methylphenyl)propionate] (antioxidant 245); a thioester secondary antioxidant; a UV absorber; a light stabilizer; a nonionic surfactant; and deionized water; wherein the UV absorber is N-(ethoxycarbonylphenyl)-N'-methyl-N'-phenylformamidinium (UV-1), and the light stabilizer is a mixture of bis(1,2,2,6,6-pentamethyl-4-piperidine) sebacate and 1-methyl-8-(1,2,2,6,6-pentamethyl-4-piperidine) sebacate (292).

The present invention relates to an oil-dispersed cosmetic composition having excellent suspension stability and, specifically, to an oil-dispersed cosmetic composition having excellent powder dispersibility, suspension stability, and formulation stability by optimally mixing a hydrogenated castor oil / sebacic acid copolymer as an oil thickener and silica dimethylsilylate as a dispersant.

The application relates to the functional coating technical field and discloses a glass reflection heat insulation paint, which comprises A component and B component; the A component comprises, in mass percentage, 45.0%-55.0% of solvent type hydroxyl acrylic resin, 5.0%-8.0% of hexagonal system nanometer cesium tungsten bronze powder, 1.0%-2.5% of anchoring type high molecular super dispersant, 0.2%-0.6% of cerium isooctoate, 0.8%-1.5% of bis (1-octyloxy-2, 2, 6, 6-tetramethyl-4-piperidyl) sebacate, 0.1%-0.3% of a leveling agent and the rest of mixed solvents; and the B component is aliphatic hexamethylene diisocyanate trimer. The application effectively inhibits the photochromic phenomenon of the coating and does not interfere with the crosslinking and curing. In combination with a step-by-step in-situ modification preparation process, competition of metal ions for coordination is avoided, secondary agglomeration of the powder is prevented, and the visible light transmission ratio of the paint film and the heat storage stability of the paint are improved.

This invention relates to the field of building waterproofing materials technology, and discloses a waterproof adhesive composition, a waterproof adhesive layer and its preparation method, an ultra-low temperature resistant waterproof membrane and its preparation method and application. The composition contains: 45-65 wt% hydroxyl-terminated polybutadiene, 2-5 wt% dioctyl sebacate, and 0.5-1.5 wt% polyethylene oxide. The ultra-low temperature resistant waterproof membrane provided by this invention exhibits excellent ultra-low temperature resistance, adhesion performance, mechanical properties, waterproof performance, aging resistance and stability, and raw material compatibility.

This invention provides an aliphatic polyester, a polyester composition comprising the same, and their applications, belonging to the technical field of biodegradable polyester materials. The aliphatic polyester comprises diacid residues and diol residues: the diacid residues include the following residues: a1), 61.2–69.1 mol% succinic acid residues based on a1) and a2), based on a total molar percentage of 100 mol% of a1) and a2), and a2), 30.9–38.8 mol% sebacic acid residues based on a1) and a2), based on a total molar percentage of 100 mol% of a1); the diol residues are selected from 1,4-butanediol residues in at least an equimolar amount as the diacid residues; the mass percentage of oligomers with a number average molecular weight <650 in the aliphatic polyester is 1.09–3%; and the molecular weight distribution coefficient of the aliphatic polyester is 1.72–2.83. The aliphatic polyester exhibits good high-speed blown film forming performance, retains excellent opening performance after high-speed blown film forming, and also possesses excellent puncture resistance.

A surface is treated with compound derived by reacting polycarboxylic acid and polyfunctional reactant having amino group. The compound is preferably a tetrapolymer polyamide derived by reacting seba

A polyester plasticizer having high cold resistance and a polyvinyl chloride composition including the same. The polyester plasticizer can be obtained by an esterification reaction of a diacid component with a diol component followed by end-capping with an end-capping agent. The diacid component is sebacic acid. The diol component includes a first diol and a second diol. The first diol is diethylene glycol, and the second diol is a diol having a silicon-oxygen structural unit, a linear chain structure, or a branched chain structure. Therefore, the polyester plasticizer can be used in a polyvinyl chloride composition, so as to improve low-temperature resistance, bendability, and plasticizer blooming resistances of a resulting PVC soft product.

The present invention relates to a process for synthesizing a polyol polymer, preferably glycerol, and polycarboxylate units, preferably dicarboxylic acid diesters, particularly sebacate units, especially PGS, comprising the introduction of a basic organocatalyst from the phosphazene family. The invention also relates to a polymer obtainable by this process. A third object of the invention is a polyol polyester exhibiting high average molar masses with a controlled water content, the absence of trace metals, and a limited acid value.

This utility model discloses a sebacic acid acidification crystallization precipitation device, specifically relating to the technical field of crystallization precipitation equipment. It includes a crystallization tank with a sealing cover at the top. A rotating rod is rotatably mounted at the bottom of the sealing cover. A spiral auger is fixed on the rotating rod, and multiple stirring rods arranged in a circular array are fixed on the spiral auger. A support frame is provided on the crystallization tank, and a cleaning box is fixed on the support frame near the crystallization tank. A rectangular through-hole is opened at the top of the support frame, and a slider is slidably mounted inside the rectangular through-hole. A telescopic rod is fixed on the slider. This utility model uses the spiral auger on the rotating rod and multiple stirring rods to agitate the liquid, keeping the mixture in a flowing state and avoiding localized oversaturation that could lead to uneven crystallization. The support frame supports the rotation of the crystallization tank and the movement of the sealing cover and rotating rod, facilitating cleaning of the crystallization tank and rotating rod and preventing residual mixture from affecting subsequent production quality.

This application relates to the field of rubber magnetic strip processing technology, and more specifically, to a gasoline-resistant rubber magnetic strip and its preparation method, which is prepared from the following raw materials in parts by weight: 85-92 parts magnetic powder, 4-8 parts nitrile rubber, 0.5-1 part dispersant, 0.1-0.5 parts coupling agent, 0.15-0.5 parts anti-aging agent, 0.2-0.5 parts zinc oxide, 0.1-0.2 parts di-tert-butyl peroxide, 0.2-0.5 parts triallyl isocyanurate, and 0 parts toughening agent. 0.15-0.6 parts, oil-resistant plasticizer 0.5-1 parts, wherein the oil-resistant plasticizer is composed of paraffin oil, adipic acid-based polyester and sebacic acid-based polyester. The above formula effectively solves the problems of swelling and interface debonding of existing nitrile rubber-based magnetic strips in gasoline environment. It can still maintain good chemical stability in oily environment for a long time, and the volume expansion rate is significantly reduced. It can avoid fan speed instability, start-stop failure or jamming, etc., and also has good flexibility and impact resistance.

This invention belongs to the field of polymer synthetic chemistry and discloses a bio-based polyamide elastomer and its preparation method. The method includes first adding sebacic acid, decanediamine, and deionized water to a reaction vessel for reaction, then adding polytrimethylene ether glycol and a catalyst to the reaction vessel for polycondensation to obtain the bio-based polyamide elastomer. The bio-based polyamide elastomer method of this invention is suitable for industrial production and has advantages such as environmental friendliness, simple operation, easy processing, readily available raw materials, and stable yield. Furthermore, this type of copolymer exhibits good thermodynamic properties, mechanical properties, and good processability.

This invention provides a catalyst for the synthesis of sebacate, its preparation method, and its application. The catalyst comprises a support and an active component. The support is a modified alumina support, obtained by forming acidified pseudoboehmite sol using an oil-ammonia column method followed by a single calcination. The active component is a composite metal oxide containing transition metal oxides and rare earth metal oxides. The mass ratio of the support, transition metal oxide, and rare earth metal oxide is 100:(1~10):(1~10). The catalyst has a pore size distribution of >90% in the 10~50 nm range and an average pore size of 30~40 nm. The macroporous alumina support in this catalyst effectively matches the macromolecular size of sebacate, promoting reactant diffusion and product desorption, shortening residence time, significantly inhibiting sebacate imide side reactions, and achieving a selectivity of over 95%. Through the synergistic effect of the transition metal and rare earth metal composite oxide active component, the catalytic activity and anti-coking ability are improved, and the service life is extended to over 1200 hours.

A rubber-based nanocomposite material, the composite material comprising: an EPDM matrix, a bio-based CNC modified by side-chain alkylization of surface hydroxyl groups, a carboxyl group; the mutual interface of the EPDM matrix, the bio-based CNC and the carboxyl group is connected through a beta-hydroxy ester bond. The application modifies the surface hydroxyl groups of the bio-based CNC by side-chain alkylization, introduces carboxyl groups on the surface of the CNC, uses commercially available EPDM as the matrix, uses sebacic acid as the auxiliary crosslinking agent, and builds a beta-hydroxy ester bond between the interfaces of the three, thereby preparing a rubber-based nanocomposite material with good mechanical properties and recyclability. This research expands the application range of beta-hydroxy ester, provides a new method for preparing green cross-linked elastomer / bio-based vitrimer composite materials, and can potentially overcome the bottleneck that traditional vulcanized rubber cannot be recycled. Using bio-based small molecule crosslinking agents to build a bridge between the polymer matrix and the filler expands the road for the follow-up research of vitrimer materials.

This invention discloses a polyester plasticizer with high cold resistance and a polyvinyl chloride (PVC) composition comprising the same. The polyester plasticizer of this invention is obtained by esterification of a diacid component and a diol component, followed by end-capping with a capping agent. The diacid component is sebacic acid, and the diol component comprises a first diol component and a second diol component. The first diol component is diethylene glycol, and the second diol component is a diol having a silicon-oxygen structural unit, a diol having a linear structure, or a diol having a branched chain structure. Therefore, the polyester plasticizer of this invention can be applied to PVC compositions to improve the low-temperature resistance and flexural strength of flexible PVC products, as well as reduce oil seepage.

The present invention relates to a process for synthesizing a polyol polymer, preferably glycerol, and polycarboxylate units, preferably dicarboxylic acid diesters, particularly sebacate units, especially PGS, comprising the introduction of a basic organocatalyst. The invention also relates to a polymer obtainable by this process. A third object of the invention is a polyol polyester exhibiting high average molar masses with a controlled water content, the absence of trace metals, and a limited acid value.

Provided are a dual-gel composition, a cosmetic product prepared by using a composition in the form of an oil-in-water dual-gel, and a method for preparing the composition and its use for preparing cosmetics, in particular sunscreen cosmetics. The composition comprises a dual-gel structure including an aqueous phase gel and an oil phase gel, wherein the composition includes the following components: (1) a (C1-C2 alkyl) acrylic acid / (C1-C2 alkyl) acrylic acid C10-C30 alkyl ester copolymer as an aqueous phase thickener; (2) an oil phase thickener comprising one or more selected from the group consisting of : (i) cellulose-based materials; (ii) dextrin / inulin fatty acid esters; (iii) glutamic acid and derivatives thereof; (iv) eicosanedioic acid and derivatives thereof; (v) polyamides; (vi) isophorone diisocyanate (IPDI) copolymers or sebacic acid copolymers; (vii) crosslinked polymers containing repeating units derived from hexamethylene-1, 6-diisocyanate (HDI) and trimethylolhexyllactone; (viii) hydroxystearic acid and derivatives thereof; (ix) polybutene; (x) waxes; (xi) sorbitan esters; and (xii) sucrose fatty acid esters; (3) a polyglycerol emulsifier having an HLB value of 0 to 8; and (4) a solvent.

The application belongs to the field of polymer material additives, and provides a fluorescent whitening agent anti-migration stable auxiliary material and a preparation method thereof. 4,4'-bis(2-sodium sulfonic acid styryl) biphenyl is intercalated in zinc-aluminum layered double hydroxide, and is surface-coated with ethanolamine modified polypropylene grafted maleic anhydride compatible components, and then is compounded and melt granulated with polypropylene carrier resin, bis(2,2,6,6-tetramethyl-4-piperidyl) sebacate and 2-(2H-benzotriazole-2-yl)-4,6-di-tert-pentylphenol, so that the fluorescent whitening agent has low migration, high retention and stable dispersion, the problems of easy migration of the whitening agent in the polypropylene system, insufficient thermal light aging stability and difficult compromise between the processing window and toughness are solved, and the application is suitable for industrialized preparation and application of polypropylene whitening modified materials.

The present application relates to a kind of full synthesis easy-to-clean copper cutting fluid and its preparation method.The raw material of the full synthesis copper cutting fluid includes composite rust inhibitor, chelating agent, special amine, aluminum copper corrosion inhibitor, lubricant, defoaming agent and solvent, and the composite rust inhibitor is composed of sebacic acid and dodecanedioic acid.The composite rust inhibitor can overcome discoloration corrosion well, has obvious cost advantage, and will not produce obvious color residue, can meet the existing user demand.Sebacic acid and dodecanedioic acid are not long carbon chain (C10 / C12) can be embedded in the gap of lubricating film, improve boundary lubrication performance, make friction coefficient reduce 5~8%, adapt to medium-low speed heavy load processing, not easy to break in long-term cyclic use (>6 months), especially suitable for the processing of nickel-containing copper alloy, can reduce the risk of pitting.

This invention provides a solvent-free adhesive composition for lamination that suppresses the decrease in the lamination strength of laminated films during filling and storage due to permeable and volatile contents, and exhibits excellent resistance to contents. [Solution] The polyester polyol component (A) contains at least three components: a polycarboxylic acid component (a-1), a monofunctional fatty acid component (a-2), and a polyhydric alcohol component (a-3). The content of sebacic acid in the total of the polycarboxylic acid component (a-1) and the monofunctional fatty acid component (a-2) is 20 mol% or more and 60 mol% or less. The elastic modulus of the cured film of the adhesive composition is 3.5 MPa or more and 10.0 MPa or less. This provides a "soft" cured adhesive film, the opposite of the conventional "hard" designs.

An antistatic release film, comprising a substrate layer, an antistatic coating, and a release agent coating. The antistatic coating is located between the release agent coating and the substrate layer; the antistatic coating is obtained by drying a coating liquid; and the coating liquid is composed of the following components in parts by weight: 100 parts of polyurethane resin, 40-60 parts of polyvinyl alcohol, 2-4 parts of sodium octyl sulfate, 1-3 parts of N-ethyl-N—(3-sulfopropyl)-3-methylaniline sodium salt, 8-12 parts of dibutyl sebacate, 40-60 parts of n-butanol, 20-30 parts of isobutyl acetate, 0.8-1.5 parts of hydroxyethyl cellulose, 0.3-0.8 part pf 3-acetylbenzoic acid, 0.2-0.8 part of triethylenetetramine, 0.5-1.2 parts of a silane coupling agent, 0.5-1 part of an antioxidant, and 0.6-2 parts of a leveling agent. The antistatic release film enables the surface resistance of the antistatic coating in the antistatic release film to be almost unchanged after 200 days, thereby improving the performance reliability of the antistatic release film.