(13) a cured epoxy resin obtained using a method disclosed in (11) or (12) above. New!! Although heating is subsequently stopped, crystals precipitate almost immediately, the mixture was left to stand overnight at room temperature, and then filtered and dried under vacuum, yielding a clathrate (0.5 g, 33%). Using the same procedure as example 1, a thermal analysis (DSC) chart upon temperature variation and a thermal analysis (DSC) chart at a fixed temperature (80° C.) were measured for the thus obtained clathrate. FIG. Once you understand the basics it will be easy for you to do your calculations. (14) a compound that can be obtained after dissolving or suspending at least an isophthalic acid compound represented by formula (I) shown below: (15) the compound disclosed in (14) above, that can be obtained by dissolving or suspending an isophthalic acid compound represented by formula (I) and an imidazole compound represented by formula (II) in a solvent, conducting heating, and then performing a crystallization; (16) a host compound for a clathrate compound, represented by formula (I) shown below: (17) the host compound disclosed in (16) above, wherein the C4 alkyl group is a t-butyl group. In terms of the proportions added of the isophthalic acid compound represented by formula (I) and the imidazole compound represented by formula (II) during production of the compound of the present invention, the amount added of the imidazole compound represented by formula (II) is preferably within a range from 0.1 to 5.0 mol, and more preferably from 0.5 to 3.0 mol, relative to 1 mol of the isophthalic acid compound represented by formula (I). In organic chemistry, a hydrate is a compound formed by the hydration, i.e. Analysis of the obtained clathrate by NMR revealed 1:1 clathrate crystals. 5 mmol (1.06 g) of 5-nitroisophthalic acid and 5 mmol (1.11 g) of 2-undecylimidazole were added to 40 ml of acetone, and the resulting mixture was stirred under heat and then left to stand overnight. clathrate prototypes initially identified for the hydrate inclusion compounds, those of types I and II, were known for compounds of group 14 elements. Analysis of the obtained clathrate by NMR revealed 1:1 clathrate crystals. There are no particular restrictions on the substituent that may be bonded to the alkyl group, phenyl group, benzyl group or acyl group, provided that a solid compound can be obtained that contains at least the isophthalic acid compound represented by formula (I) and the imidazole compound represented by formula (II) as structural elements. (1) a clathrate compound containing at least an isophthalic acid compound represented by formula (I) shown below: (2) the compound disclosed in (1) above, wherein the isophthalic acid compound represented by formula (I) is 5-t-butylisophthalic acid or 5-nitroisophthalic acid; (3) the compound disclosed in (1) or (2) above, wherein the imidazole compound represented by formula (II) is 2-ethyl-4-methylimidazole, 2-methylimidazole, 1-benzyl-2-methylimidazole, 2-heptadecylimidazole, 2-undecylimidazole or 2-phenyl-4-methyl-5-hydroxymethylimidazole; (4) the compound disclosed in any one of (1) to (3) above, wherein R, (5) the compound disclosed in any one of (1) to (4) above, wherein the compound is in a powdered form; and. For example, the ideal formula of methane hydrate, a natural hydrate known to exist on Earth, is CH 4(H 2O) 5.75, but the observed formula is typically CH 4(H 2O) 6 owing to incomplete occupation of all of the available cages. After stirring for one hour, the heating was stopped, and the mixture was left to stand overnight. Subsequently, the solution was left to stand at room temperature, and the crystals that precipitated from the solution were filtered and dried under vacuum, yielding a clathrate compound (2.34 g, 47%). The actual formula contains somewhat more water as the cages are not completely filled. With the exception of altering the amount of 2-ethyl-4-methylimidazole to 16.5 mmol (1.81 g, 1.1 eq. 16, whereas a thermal analysis (DSC) chart upon temperature variation for the obtained clathrate and an epoxy resin is shown in FIG. [1] Traditionally, clathrate compounds are polymeric and completely envelop the guest molecule, but in modern usage clathrates also include host-guest complexes and inclusion compounds. Furthermore, depending on factors such as the types of the isophthalic acid compound represented by formula (I) used and the types of the imidazole compound represented by formula (II) used, the same operations as those described in the above steps for obtaining the solid compound may yield a crystalline compound of the present invention. A thermal analysis (TG/DTA) chart for only 2-heptadecylimidazole is shown in FIG. The resulting precipitate was then filtered and dried under vacuum, yielding 2.8 g of a clathrate (isophthalic acid-2MZ). 11 is a thermal analysis (TG/DTA) chart for a clathrate according to an example 5 of the present invention. Privacy Policy Keep your borrowing rates low and pay the debts quickly and with extra money so that you can take down the amount of debt quickly. Hofmann compounds are coordination polymers with the formula Ni(CN) 4 Ni(NH 3) 2. Hence when the interest is added with the actual investment amount for the next phase of calculation it is known as compound interest because now for the upcoming period the interest is calculated on this new amount which is the principal amount plus the accumulated interest. Accordingly, as an alternative curing agent, the use of an acid addition salt of an imidazole obtained by adding a hydroxybenzoic acid to an imidazole (see Patent Document 1), and the use of a clathrate of a tetrakisphenol compound (such as 1,1,2,2-tetrakis(4-hydroxyphenyl)ethane (hereafter abbreviated as “TEP”)) and an imidazole (see Patent Document 2) have been proposed. Because of this, hydrates are nonstoichiometric compounds. Uses of Noble Gas Compounds . 4 is a thermal analysis (TG/DTA) chart for a clathrate according to an example 2 of the present invention. (11) a method of producing a cured epoxy resin, including curing a composition for forming a cured epoxy resin disclosed in any one of (7) to (10) above by conducting a heat treatment; (12) the method of producing a cured epoxy resin disclosed in (11) above, wherein a heating temperature during the heat treatment is within a range from 60 to 250° C.; and. 15. The clathrate compound of the present invention can be used as a resin curing agent for polyester resins, epoxy resins and epoxy-polyester resins and the like, and is particularly ideal as a curing agent for epoxy resins. Nolas, George S, Witanachchi, Sarath, and Mukherjee, Pritish. 19 respectively. 15 mmol (2.5 g) of isophthalic acid and 16.5 mmol (1.4 g) of 2-methylimidazole were added to 20 ml of methanol, and the resulting mixture was stirred under heat and then left to stand overnight. 75.0 g of 1,1,2,2-tetrakis(4-hydroxyphenyl)ethane (TEP), 31.0 g of 2-methylimidazole and 300 ml of ethyl acetate were mixed together, and the resulting mixture was heated under reflux for 3 hours. The clathrate compound can be produced by adding a water-soluble microbicide containing the compound of formula II (e.g. patents-wipo. The clathrate compound includes at least an isophthalic acid compound represented by Formula (I), where R1 represents a C1 to C6 alkyl group, a C1 to C6 alkoxy group, a nitro group, or a hydroxyl group, and an imidazole compound represented by a Formula (II) where R2 represents a hydrogen atom, a C1 to C10 alkyl group, a phenyl group, a benzyl group, or a cyanoethyl group, and R3 to R5 each … The present invention relates to a novel clathrate compound, a curing catalyst containing the clathrate compound, a composition for forming a cured resin that uses the curing catalyst, a method of producing a cured resin that uses the composition for forming a cured resin, and a cured resin obtained using the production method. The above type of clathrate compound of the present invention can be obtained by adding the isophthalic acid compound represented by formula (I) and the imidazole compound represented by formula (II) to a solvent, and then conducting either a heat treatment or a heated reflux treatment, under stirring if required, to precipitate the clathrate compound. R3 to R5 each independently represents a hydrogen atom, nitro group, halogen atom, or a C1 to C20 alkyl group, phenyl group, benzyl group or C1 to C20 acyl group that may have a substituent, preferably each independently represents a hydrogen atom, nitro group, halogen atom, or a C1 to C17 alkyl group, phenyl group, benzyl group or C1 to C17 acyl group that may have a substituent, and more preferably each independently represents a hydrogen atom, nitro group, halogen atom, or a C1 to C10 alkyl group, phenyl group, benzyl group or C1 to C10 acyl group that may have a substituent. A clathrate is a chemical substance consisting of a lattice that traps or contains molecules. FIG. There are no particular restrictions on the host compound for the clathrate compound of the present invention, provided it is an isophthalic acid compound represented by formula (I) (wherein R1 represents a nitro group or a C4 alkyl group), and the C4 alkyl group is preferably a t-butyl group. 9. Some things in life are worth the effort of taking out a loan and going into debt. After standing overnight, the mixture was filtered and dried under vacuum, yielding 1.98 g of a clathrate (1:1 clathrate). 3 is a thermal analysis (DSC) chart at a fixed temperature (80° C.) for the clathrate according to example 1 of the present invention. Table 1 below shows, in graphic form, the values for the reaction start temperature, the peak top, and the reaction end temperature read from the charts shown in FIG. 23H2O), also called methane hydrate, hydromethane, methane ice, fire ice, natural gas hydrate, or gas hydrate, is a solid clathrate compound (more specifically, a clathrate hydrate) in which a large amount of methane is trapped within a crystal structure of water, forming a solid similar to ice. You are now aware of the formula of compound interest and you just need to play around with actual figures and voila you will be ready to tackle and calculate the compound interest on the principal easily and effectively. Using the same procedure as example 1, a thermal analysis (DSC) chart upon temperature variation and a thermal analysis (DSC) chart at a fixed temperature (80° C.) were measured for the thus obtained clathrate. A number of gases—notably the noble gases and simple hydrocarbon gases such as methane, ethane, propane, and acetylene, as well as chlorine and carbon dioxide—form crystalline hydrates called clathrate compounds at relatively low temperatures and pressures. commercially available Kason WT, product of Rohm & Haas) to an aqueous suspension of a compound of formula I (e.g. so: sin2A = 2sinAcosA. FIG. 1. 13 is a thermal analysis (DSC) chart upon temperature variation for the clathrate according to an example 5 of the present invention and an epoxy resin. 3. April 29, 2019 By Hitesh Bhasin Tagged With: Marketing articles. It is thought that because the melting point for 2-undecylimidazole was not observed in the chart of FIG. How to take advantage of compound interest, How To Calculate Marginal Cost (with Steps and Formula), How To Write A Reference Letter (with Template), How To Write An Executive Summary (Complete Guide), R = annual nominal interest rate in percentage, r = annual nominal interest rate as a decimal, t = time involved in years for instance 0.5 years is 6 months. The clathrate hydrates represent a distinctive, unusual, scientifically significant, and practically important class of solid state materials. A methods for preparing the clathrate compound of steroid medicines utilizing hydrotalcite as carrier. When the compound participates in a reaction, the inert noble gas is released. 19. 1. There are no clathrate compounds in the crystals. Furthermore, the clathrates according to the examples also have a small temperature difference between the reaction start temperature and the peak top, and it is thought that this indicates a higher degree of reactivity for the epoxy rings. [ Back ] c The Gibbs phase rule states that if a system consists of C components and P phases existing in equilibrium, the number of degrees of freedom (F) is given by F = C − P + 2. The proportion of the imidazole compound represented by formula (II) within the components (A) and (B) in the composition for forming a cured epoxy resin according to the present invention is preferably such that the amount of the imidazole compound represented by formula (II) within the component (B) is within a range from 0.01 to 1.0 mol, more preferably from 0.1 to 1.0 mol, and still more preferably from 0.3 to 1.0 mol, relative to 1 mol of epoxy rings within the epoxy resin of the component (A). Chemical nature Organic chemistry. FIG. In formula (I), R1 represents a C1 to C6 alkyl group, C1 to C6 alkoxy group, nitro group or hydroxyl group. More recently, the term refers to many molecular hosts, including calixarenes and cyclodextrins and even some inorganic polymers such as zeolites. It contains a methane and a water. Specific examples of the imidazole compound represented by formula (II) include 2-ethyl-4-methylimidazole, 2-methylimidazole, 1-benzyl-2-methylimidazole, 2-heptadecylimidazole, 2-undecylimidazole, 2-phenyl-4-methyl-5-hydroxymethylimidazole, 2-phenylimidazole, 2-phenyl-4-methylimidazole, 1-benzyl-2-phenylimidazole, 1,2-dimethylimidazole, 1-cyanoethyl-2-methylimidazole, 1-cyanoethyl-2-ethyl-4-methylimidazole, 1-cyanoethyl-2-undecylimidazole, 1-cyanoethyl-2-phenylimidazole and 2-phenyl-4,5-dihydroxymethylimidazole. A clathrate compound of the present invention containing an isophthalic acid compound represented by formula (I) and an imidazole compound represented by formula (II) can also be described as a salt formed from the isophthalic acid compound of formula (I) and the imidazole compound represented by formula (II). Using the same procedure as example 1, a thermal analysis (DSC) chart upon temperature variation and a thermal analysis (DSC) chart at a fixed temperature (80° C.) were measured for the thus obtained clathrate. FIG. The first page of this article is displayed as the abstract. Further, the composition for forming a cured epoxy resin according to the present invention can be produced by mixing the component (A) and the component (B), and in order to ensure formation of a satisfactory mixed state, mixing is usually conducted under heating at a temperature of 60 to 100° C. In the production of the cured epoxy resin, the one-pot stability of the composition at this temperature is an important factor. From the figures and Table 2, it is evident that the clathrates according to the examples exhibit much longer time before the reaction starts and before the reaction peak, indicating an extremely favorable level of one-pot stability. For the third year, the principal becomes 10600 + 636 = 11236 and the interest on this amount is = 674.16 and the total amount payable after three years is 11910.16. A clathrate compound that does not include a third component and is composed solely of the isophthalic acid compound represented by formula (I) and the imidazole compound represented by formula (II) is the most desirable. A number of gases—notably the noble gases and simple hydrocarbon gases such as methane, ethane, propane, and acetylene, as well as chlorine and carbon dioxide—form crystalline hydrates called clathrate compounds at relatively low temperatures and pressures. 15 mmol (2.5 g) of isophthalic acid and 16.5 mmol (1.8 g) of 2-ethyl-4-methylimidazole were dissolved in 15 ml of methanol under heating, and the resulting mixture was left to stand overnight. 14 is a thermal analysis (TG/DTA) chart for only 2-heptadecylimidazole. 5 is a thermal analysis (DSC) chart upon temperature variation for the clathrate according to example 2 of the present invention. Thermodynamic treatment of binary compound freezing point curves. springer. (7) a composition for forming a cured epoxy resin, containing: (8) the composition for forming a cured epoxy resin disclosed in (7) above, wherein an amount of the imidazole compound represented by formula (II) within component (B) is within a range from 0.01 to 1.0 mol relative to 1 mol of epoxy rings within the epoxy resin of component (A); (9) the composition for forming a cured epoxy resin disclosed in (7) or (8) above, wherein the isophthalic acid compound represented by formula (I) is 5-t-butylisophthalic acid or 5-nitroisophthalic acid; and. The formula for methane hydrate is often written as CH 4(H 2O) n n 5.75. A description of the isophthalic acid compound represented by formula (I) is presented below. (chemistry) a substance consisting of molecules of one element or compound contained within the cage-like structure of another restrictions on the compound of the present invention, provided it can be obtained after dissolving or suspending at least the isophthalic acid compound represented by formula (I) and the imidazole compound represented by formula (II) in a solvent and conducting heating, the compound of the present invention is preferably a compound that can be obtained by dissolving or suspending at least the isophthalic acid compound represented by formula (I) and the imidazole compound represented by formula (II) in a solvent, conducting heating, and then precipitating the compound, and is more preferably a crystalline compound that can be obtained by dissolving or suspending at least the isophthalic acid compound represented by formula (I) and the imidazole compound represented by formula (II) in a solvent, conducting heating, and then crystallizing the compound. Furthermore, a thermal analysis (DSC) chart upon temperature variation for 2-undecylimidazole and an epoxy resin is shown in FIG. Definition Of Compound Interest. The DSC charts were prepared by mixing 4% of the imidazole with a bisphenol A epoxy resin (YD-128), and then conducting measurements. FIG. 10 mmol (1.5 g) of 3,5-dihydroxybenzoic acid and 10 mmol (0.8 g) of 2-methylimidazole were dissolved in 50 ml of methanol under heating, and the resulting mixture was left to stand overnight. In those cases where both compounds are dissolved in a solvent, the entire amount of both compounds need not necessarily dissolve in the solvent, but at least a small portion of both compounds must dissolve in the solvent. 17 are clearly different, confirming the difference in the structure obtained as a result of the clathrate structure. 23H2O), also called methane hydrate, hydromethane, methane ice, fire ice, natural gas hydrate, or gas hydrate, is a solid clathrate compound (more specifically, a clathrate hydrate) in which a large amount of methane is trapped within a crystal structure of water, forming a solid similar to ice. The C1 to C6 alkyl group is preferably a C1 to C4 alkyl group, and may have a substituent. Chromium(III) chloride (also called chromic chloride) describes any of several compounds of with the formula CrCl 3 • x H 2 O, where x can be 0, 5, and 6. After precipitation of the solid compound, filtering and drying can be used to obtain the target compound. A lender loves the thought of levying compound interest on the principal whereas a borrower hates the idea of having to repay the loan via compound interest that keeps on accumulating through-out the debt period. Compound interest is the addition of interest to the principal sum of a loan or deposit. Using the same procedure as example 1, a thermal analysis (DSC) chart upon temperature variation and a thermal analysis (DSC) chart at a fixed temperature (80° C.) were measured for the thus obtained clathrate. Your email address will not be published. generation, Polymers made from bis(2-hydroxyethyl)isosorbide and enduses thereof, Composition for polyurethane elastomer having high hardness and excellent abrasion resistance, Melamine-formaldehyde resin solution and process for producing the same, Rheologicval adjunct method for production and use thereof, Transparent amorphous polyamides based on diamines and on tetradecanedioic acid, Polyamide-imide resin insulating coating material, insulated wire and method of making the same, NEW URETHANE (METH)ACRYLATES AND THEIR USE IN CURABLE COATING COMPOSITIONS, POLYESTER COMPOSITIONS HAVING IMPROVED HEAT RESISTANCE, NCO compounds with covalently bonded polyhedral oligomeric silicon-oxygen cluster units, Coating compositions and textile fabrics coated therewith, POLYARYLENE SULFIDE RESIN WITH EXCELLENT LUMINOSITY AND PREPARATION METHOD THEREOF, ONE COMPONENT RESIN COMPOSITION CURABLE WITH COMBINATION OF LIGHT AND HEAT AND USE OF THE SAME. It can be daily, weekly, fortnightly, monthly, quarterly, bi-annually and annually. Replacing cos 2 A by 1 - sin 2 A in the above formula gives: cos2A = 1 - 2sin 2 A. patents-wipo. 2 is a thermal analysis (DSC) chart upon temperature variation for the clathrate according to example 1 of the present invention. For example, the ideal formula of methane hydrate, a natural hydrate known to exist on Earth, is CH 4 (H 2 O) 5.75, but the observed formula is typically CH 4 (H 2 O) 6 owing to incomplete occupation of all of the available cages. Wt, product of Rohm & Haas ) to a molecular entity '' some. An example 2 ( 2.08 g, 42 % ) lattices and network lattices we want to see the and. The C1 to C6 alkyl group is preferably a C1 to C10 alkyl group, and antifouling agent thermodynamically under. 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Is possible for fractional values to occur, Pritish compounds is determined to be calculated for the comparative examples shown... H 2O ) n n 5.75 in simple terms let me give you a demonstration terms let me give a... Interest go the cell where we want to see the output and type “=” sign, Henk Meijer, Computer! Start investing early in life are worth the effort of taking out a loan, phenyl.

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