70 results about "Endotherm" patented technology

A bulk of polyester polymer particles comprising polyester polymer comprising greater than 75% virgin polyester polymer, the particles having: A) an It.V. of at least 0.72 dl / g, and B) 10 ppm or less of residual acetaldehyde; and C) at least two melting peaks, wherein one of said at least two melting peaks is a low peak melting point within a range of 140° C. to 220° C. and having a melting endotherm area of at least the absolute value of 1 J / g. The particles may also have a degree of crystallinity within a range of 20% and a maximum degree of crystallinity Tcmax defined by the equation: Tcmax=50%−CA−OH where CA is the total mole % of all carboxylic acid residues other than terephthalic acid residues, based on 100 mole % of carboxylic acid residues, and OH is the total mole % of all hydroxyl functional compound residues other than ethylene glycol residues, based on 100 mole % of hydroxyl functional compounds residues. The preforms and bottles made from these particles can be obtained by melt processing these particles at either lower overall power, faster screw speeds, lower residence time, or lower overall cycle time to thereby reduce the level of residual acetaldehyde generated in the melt.

To provide a developer that includes a carrier and a toner having base particles each containing a binder resin and a paraffin wax, wherein the base particle has a paraffin wax-originated endotherm from 2.0 J / g to 5.5 J / g at an endothermic peak as measured by DSC, an average circularity from 0.94 to 1.00, and a contact area-to-whole projected area ratio from 15% to 40%.

A polymorphic form of 9-nitrocamptothecin is provided, the polymorph being characterizable as having, by differential scanning calorimetry, an endotherm at between 149.2 and 151.2° C., an exotherm at between 162.6 and 164.6° C., and an exotherm at between 272 and 274° C.

The present invention provides a thermoplastic resin composition that gives a solar cell sealing sheet having, even without being crosslinked, good mechanical strength, solar cell sealability, transparency, and weatherability.The thermoplastic resin composition of the present invention comprises 1 to 95% by weight of a propylene-based polymer (A) and 5 to 99% by weight of a copolymer (B) with at least one .-olefin having 2 to 20 carbon atoms other than propylene, wherein (A) satisfies the following (i) and (ii), and (B) has a melting point below 80° C. or does not show a melting point as measured by a differential scanning calorimeter (DSC).(i) Melting point measured by a differential scanning calorimeter (DSC) method is in the range of 80 to 135° C.(ii) Endotherm attributable to crystal melting is not observed at 140° C. or more in the endothermic curve measured by a differential scanning calorimeter (DSC) method.

A retort ink contains binder, colorant and carrier and the cured ink has a bond strength to a layer of retort material of at least about 500 g / 2.54 cm before retorting and / or the binder has an endotherm of 0.6 J / g or less or after retorting a bond strength of at least about 375 g / 2.54 cm or destruct strength. Laminate plies carrying the ink and retorts using the ink are described.

There is provided a conductive filler with high heat resistance which can be melt-bonded under reflow heat treatment conditions for a lead-free solder and, after the bonding, does not melt under the same heat treatment conditions. The conductive filler is characterized in that, as measured by differential scanning calorimetry, it has at least one metastable metal alloy phase observed as an exothermic peak and has at least one melting point observed as an endothermic peak in each of the 210 to 240° C. range and the 300 to 450° C. range, and that the filler, upon heat treatment at 246° C., gives a bonded object which has, as measured by differential scanning calorimetry, no melting point observed as an endothermic peak in the 210 to 240° C. range or has a melting endotherm calculated from an endothermic peak area in the 210 to 240° C. range, the melting endotherm being 90% or less of the melting endotherm of the filler before bonding calculated from an endothermic peak area in the 210 to 240° C. range.

A toner of the present invention includes a first wax and a second wax. The endothermic peak temperature of the first wax by the DSC method is 50° C. to 90° C. The endothermic peak temperature of the second wax is 5° C. to 50° C. higher than that of the first wax. Jmw1 / Jw1 is 0.5 or less and Jmw2 / Jw2 is 0.5 to 1.2, where Jw1 represents the endotherm of the first wax, Jw2 represents the endotherm of the second wax, Jmw1 represents the melting endotherm of the first wax by the MDSC method, and Jmw2 represents the melting endotherm of the second wax. The first wax and the second wax are mixed into a dispersion beforehand, the dispersion is then mixed with a resin particle dispersion and a colorant particle dispersion, and the particles are aggregated to form core particles. Thus, a toner having a small particle size and a sharp particle size distribution can be produced without requiring a classification process.

The propylene polymer of the present invention satisfies (1) a 25° C. hexane soluble content (H25) of 0–80 wt %; and (2) either no melting temperature (Tm) measurable by differential scanning calorimetry (DSC), or a melting temperature (Tm) satisfying, if measurable by DSC, the following relationship: ΔH≧3×(Tm−120) wherein ΔH is a melting endotherm (J / g). The propylene homopolymer of the present invention satisfies (1) a meso pentad fraction (mmmm) of 30–60 mol %; (2) a racemic pentad fraction (rrrr) satisfying the following relationship: [rrrr / (1−mmmm)]≦0.1; (3) a fraction (W25) eluted at a temperatures up to 25° C. by temperature-programmed chromatography, of from 20–100 wt %; and, (4) a pentad fraction (rmrm) of more than 2.5 mol %. The propylene copolymer of the present invention satisfies (1) a stereoregularity index (P) of 55–90 mol % as determined by 13C-NMR measurement; and (2) a fraction (W25) eluted at a temperatures up to 25° C. by temperature-programmed chromatography, of from 20–100 wt %.

Apparatus and method for operating a fuel cell system including a hydrocarbon catalytic reformer and close-coupled fuel cell stack by recycling anode syngas into the reformer in a range between 60% and 95% of the total syngas. At equilibrium conditions, oxygen required for reforming of hydrocarbon fuel is derived from endothermically reformed water and carbon dioxide in the syngas. Reforming temperature is between about 650° C. to 750° C. The stack exit temperature is about 800° C. to 880° C. such that the required endotherm can be provided by the sensible heat of the recycled syngas. The stack has approximately equal anode and cathode gas flows in opposite directions, resulting in cooling from both the anodes and cathodes.

Spheroidal polyester polymer particles, as well as preforms and stretch blow molded bottles made from the spheroidal particles, are provided which have: A) an It.V. of at least 0.72 dL / g, and either B) at least two melting peaks (on a DSC first heating scan), wherein one of said at least two melting peaks is a low peak melting point having a peak temperature within a range of 140° C. to 220° C. and having a melting endotherm area of at least the absolute value of 1 J / g, or C) a low degree of crystallinity within a range of at least 20% and a maximum degree of crystallinity Tcmax defined by the equation: Tcmax=50%−CA−OH where CA is the total mole % of all carboxylic acid residues other than terephthalic acid residues, based on 100 mole % of carboxylic acid residues in the polyester polymer, and OH is the total mole % of hydroxyl functional compound residues other than ethylene glycol residues, based on 100 mole % of the hydroxyl functional compounds residues; or both B) and C); and optionally but preferably D) 10 ppm or less of residual acetaldehyde.

A process for the preparation of mineral filled polyamide and polyester compositions having increased melt flow, in which polyamide or polyester is melt-blended with at least one aromatic carboxylic acid and / or anhydride, mineral filler, and optionally, one or more additional components, wherein the aromatic carboxylic acid and / or anhydride has a melting point that is no greater than the onset temperature of the melting point endotherm of the polyamide or polyester.

The propylene polymer of the present invention satisfies (1) a 25° C. hexane soluble content (H25) of 0-80 wt %; and (2) either no melting temperature (Tm) measurable by differential scanning calorimetry (DSC), or a melting temperature (Tm) satisfying, if measurable by DSC, the following relationship: ΔH≧3×(Tm−120) wherein ΔH is a melting endotherm (J / g). The propylene homopolymer of the present invention satisfies (1) a meso pentad fraction (mmmm) of 30-60 mol %; (2) a racemic pentad fraction (rrrr) satisfying the following relationship: [rrrr / (1−mmmm)]≦0.1; (3) a fraction (W25) eluted at a temperatures up to 25° C. by temperature-programmed chromatography, of from 20-100 wt %; and, (4) a pentad fraction (rmrm) of more than 2.5 mol %. The propylene copolymer of the present invention satisfies (1) a stereoregularity index (P) of 55-90 mol % as determined by 13C-NMR measurement; and (2) a fraction (W25) eluted at a temperatures up to 25° C. by temperature-programmed chromatography, of from 20-100 wt %.

Spheroidal polyester polymer particles, as well as preforms and stretch blow molded bottles made from the spheroidal particles, are provided which have: A) an It.V. of at least 0.72 dL / g, and either B) at least two melting peaks (on a DSC first heating scan), wherein one of said at least two melting peaks is a low peak melting point having a peak temperature within a range of 140° C. to 220° C. and having a melting endotherm area of at least the absolute value of 1 J / g, or C) a low degree of crystallinity within a range of at least 20% and a maximum degree of crystallinity Tcmax defined by the equation: Tcmax=50%−CA−OH where CA is the total mole % of all carboxylic acid residues other than terephthalic acid residues, based on 100 mole % of carboxylic acid residues in the polyester polymer, and OH is the total mole % of hydroxyl functional compound residues other than ethylene glycol residues, based on 100 mole % of the hydroxyl functional compounds residues; or both B) and C); and optionally but preferably D) 10 ppm or less of residual acetaldehyde.

Disclosed is a catalyst carrier which is used for carrying a catalyst thereon. The catalyst carrier is characterized in that the apparent specific heat measured at 800° C. is 1.8 times or more greater than that measured at room temperature, wherein the apparent specific heat means a charge heat amount required for substantially increasing the temperature of a unit mass (kg) by 1 K, inclusive of the influence of endotherm or exotherm caused by change in crystalline form, partial melting, coagulation, phase transformation, vitrification, amorphous-formation, crystallization and the like.

A polymorphic form of 9-nitrocamptothecin is provided, the polymorph being characterizable as having, by differential scanning calorimetry, an endotherm at between 175.5 and 177.5° C., an exotherm at between 181.7 and 183.7° C., and an IR spectrum with no absorption centered between 3625 cm-1 and 3675 cm-1.

The invention refers to a medicine combination which can cure and prevent the fatty liver in mammal, especially in human and endotherm. It contains a safe and effective amount of pyrrole & quinoline quinone and / or its acceptable salt and / or ester in pharmacy as the active component, and the acceptable carrier in pharmacy. It has a remarkably curative effect on the fatty liver,

A method for the manufacture of a multilayer circuit comprising a liquid crystalline polymer layer, the method comprising treating the multilayer circuit with an amount of heat effective to raise the crystalline to nematic melting point, as defined by the peak endotherm above the glass transition temperature in a differential scanning calorimeter measurement, of the liquid crystalline polymer layer by at least about 10° C.

The invention provides a plant active flame-proof extinguishing agent, which mainly comprises active water and plant composite flame-proof active agent. the active water is prepared mainly from grain stillage and plant ash through leaching. The weight ratio of the composite flame-proof activator and active water is 10-25 : 75-90.

A conductive paste including (A) conductive particles, (B) a glass frit containing substantially no lead, arsenic, tellurium, and antimony, and (C) a solvent. The glass frit (B) has a remelting temperature of 320 to 360° C., wherein the remelting temperature is indicated by a peak top of at least one endothermic peak having an endotherm of 20 J / g or more in a DSC curve as measured by a differential scanning calorimeter. The conductive paste can also include at least one metal oxide (D) selected from the group consisting of tin oxide, zinc oxide, indium oxide, and copper oxide. The glass frit (B) can further include (B-1) Ag2O, (B-2) V2O5, and (B-3) MoO3. The conductive paste can achieve binding at a relatively low temperature (such as 370° C. or lower) and maintains a bond strength at a relatively high temperature (such as 300 to 360° C.).

Apparatus and method for operating a fuel cell system including a hydrocarbon catalytic reformer and close-coupled fuel cell stack by recycling anode syngas into the reformer in a range between 60% and 95% of the total syngas. At equilibrium conditions, oxygen required for reforming of hydrocarbon fuel is derived from endothermically reformed water and carbon dioxide in the syngas. Reforming temperature is between about 650° C. to 750° C. The stack exit temperature is about 800° C. to 880° C. such that the required endotherm can be provided by the sensible heat of the recycled syngas. The stack has approximately equal anode and cathode gas flows in opposite directions, resulting in cooling from both the anodes and cathodes.

An electrostatic developer is provided that contains toner-containing image-forming particles and an uncrosslinked, linear hydrocarbon based homopolymer wax component, wherein the wax has a total number of branches in each of one or more chains that is less than 0.5%, relative to total number of carbons in said wax; wherein the wax is further characterized by having a set of endotherms as determined by differential scanning calorimetry (DSC) run at a maximum rate of 10° C. per minute, these endotherms being characterized by a primary endotherm and at least a secondary endotherm, the primary endotherm exhibiting a temperature range of between 70° C. and 90° C., and the secondary endotherm exhibiting a temperature range of between 95° C. and 110° C., and wherein the wax has a crystallinity of from 75% to 90% as determined by small angle X-ray diffraction analysis.

The invention relates to a temperature-controlled sustained-release injection containing an alkylating agent and a preparation method thereof, the temperature-controlled sustained-release injection comprises effective anti-cancer amount of the alkylating agent, an amphiphilic block copolymer, a solvent and a certain amount of drug release regulator, wherein, the mixture of the amphiphilic block copolymer and a solvent without organic solvent has the temperature-sensitive gelatinization feature, which is flowable liquid in the environment that is lower than the body temperature and can be automatically converted to the water-insoluble gel that can not flow and be biodegradable for absorption in an endotherm, and the water-insoluble gel can allow the contained angiogenesis inhibitor to have the local sustained release in a tumor and maintain the effective drug concentration for a plurality of weeks to a plurality of months. The sustained-release gel injection can be injected in the tumor or the tumor periphery or be arranged in the postoperative tumor cavity, thus significantly reducing the systemic reaction of the drug and being used for the treatment of the tumors in different stages. The alkylating agent is selected from cyclophosphamide, melphalan, leukeran, 4H-cyclophosphamide peroxide, norcantharidin, mannosulfan, treosulfan, ritrosulfan, ethoglucid, pipobroman, piposulfan, pumitepa, uredepa, azatepa and so on.

The invention provides a water injection high-frequency endotherm knife for operations. The water injection high-frequency endotherm knife comprises a shell and a metal endotherm knife head arranged at the head end of the shell. The endotherm knife head is electrically connected with a circuit board in the shell. The circuit board is connected with a wire arranged at the tail end of the shell. The side wall of the shell is provided with an electric resection key and an electric coagulation key which are electrically connected with the circuit board. A metal injection syringe needle is also arranged at the head end of the shell, or a metal injection syringe needle replacing the metal endotherm knife head is arranged at the head end of the shell. The tail end of the metal injection syringe needle is connected with an injection hose, made of insulating materials, in the shell, the side wall of the shell is further provided with a water injection switch structure capable of controlling on-off of the injection hose, and the other end of the injection hose is guided out through the tail end of the shell. According to the water injection high-frequency endotherm knife for the operations, tissue cutting efficiency and the fine degree can be improved in many ways, fine normal tissue like nerves is protected, the wound surface blood bleeding and seepage phenomena existing during operations and after operations are reduced, and therefore convenience is provided for surgical operations which are more fine and rapid.

Provided is a filter comprising a polypropylene-based resin composition satisfying the following (1) to (3), the filter being made compatible with respect to collecting property and air permeability. (1) A melt flow rate 10 to 2,000 g / 10 min. (2) A melting endotherm ΔH as measured by a differential scanning calorimeter is 50 to 95 J / g. (3) A polypropylene (A) having [mmmm] of 20 to 60 mol % is contained.

The invention relates to a temperature-controlled sustained-release injection containing an anti-cancer drug, which consists of the anti-cancer drug and an amphiphilic block copolymer hydrogel and has the temperature-sensitive gelatinization feature, the temperature-controlled sustained-release injection is flowable liquid in the environment that is lower than the body temperature and can be automatically converted to the water-insoluble gel that can not flow and be biodegradable for absorption in an endotherm, thus allowing the drug to have the local sustained release in a tumor and maintain the effective drug concentration for a plurality of weeks to a plurality of months; the temperature-controlled sustained-release injection can be injected in the tumor or the tumor periphery or be arranged in the postoperative tumor cavity, thus significantly reducing the systemic reaction of the drug, strengthening the treatment effects of chemotherapy, radiotherapy and other non-surgical therapies, and being used for the treatment of the tumors in different stages. The anti-cancer drug can be vincristine, vinorelbine, navelbine, vindesine, vinleurosine, vinrosidine, cephalotaxine, bleomycin, daunomycin, aclarubicin, epirubicin, idarubicin, pirarubicin, valrubicin, mitomycin C, actinomycin D, losoxantrone, mitoxantrone, mitozolomide, temozolomide and so on.

The invention relates to a temperature-controlled sustained-release injection containing a platinum compound and a preparation method thereof, the temperature-controlled sustained-release injection comprises effective anti-cancer amount of the platinum compound, an amphiphilic block copolymer and a certain amount of drug release regulator, wherein, the amphiphilic block copolymer is composed of polyethylene glycol and polyester, the mixture of the amphiphilic block copolymer and a solvent without organic solvent has the temperature-sensitive gelatinization feature, which is flowable liquid in the environment that is lower than the body temperature and can be automatically converted to the water-insoluble gel that can not flow and be biodegradable for absorption in an endotherm, and the water-insoluble gel can allow the contained platinum compound to have the local sustained release in a tumor and maintain the effective drug concentration for a plurality of weeks to a plurality of months; the anti-cancer sustained-release gel injection can be injected in the tumor or the tumor periphery or be arranged in the postoperative tumor cavity, thus being used for the treatment of the tumors in different stages. The platinum compound is selected from cisplatin, carboplatin, cycloplatin, eptaplatin, denaplatin, zeniplatin, enloplatin, sulfatodiaminocyclohexane platin, cis-spiroplatin, dexormaplatin, iproplatin, lobaplatin, miboplatin, picoplatin, nedaplatin, ormaplatin, oxaliplatin and so on.

A toner wherein the state of wax dispersion in the vicinity of the surface thereof is controlled so as not only to enhance hot offset resistance to thereby realize favorable fixability but also to enhance antiblocking properties to thereby realize excellent long-term storability. In particular, a toner comprising at least a binder resin, a colorant and a wax, characterized in that the content of wax in terms of the value, expressed by weight, wax endotherm determined in accordance with DSC (Differential Scanning Calorimetry) is in the range of 3 to 21 wt.% based on the total toner weight; the intensity ratio of (P2850 / P828) wherein P2850 represents the intensity of peak (2850 cm<-1>) ascribed to the wax while P828 represents the intensity of peak (828 cm<-1>) ascribed to the binder resin as determined in accordance with FTIR-ATR (Fourier Transform Infra-Red Attenuated Total Reflection) spectroscopy, as a value defining the amount of wax being present in a region extending from the surface of toner particle to a depth of 0.3 mum, is in the range of 0.01 to 0.40; and at least portion of the wax is present in the form of multiple independent wax disperse subparticles encapsulated in the toner particles.