摘要:
A thermosetting furan resin composition comprising furan based resin (A), curing catalyst (B), and additive (C) that is a normal salt including a strong acid and a strong base is offered. The abovementioned additive (C) preferably has a solubility in water of 30 g/100 g H2O at 20° C. Furthermore, the abovementioned additive (C) is at least one selected from the group consisting of sodium chloride, potassium chloride, lithium chloride, sodium bromide, potassium bromide, lithium bromide, sodium sulfate, potassium sulfate, lithium sulfate, sodium nitrate, potassium nitrate, and lithium nitrate, or a mixture thereof. The content of the abovementioned additive (C) is 0.2-10 parts by weight based on the aforementioned furan based resin (A) being 100 parts by weight.
摘要翻译:提供了包含呋喃基树脂(A),固化催化剂(B)和作为包含强酸和强碱的正常盐的添加剂(C)的热固性呋喃树脂组合物。 上述添加剂(C)优选在20℃下在水中的溶解度为30g / 100g H 2 O。此外,上述添加剂(C)是选自氯化钠,氯化钾,氯化锂中的至少一种 ,溴化钠,溴化钾,溴化锂,硫酸钠,硫酸钾,硫酸锂,硝酸钠,硝酸钾和硝酸锂,或其混合物。 上述添加剂(C)的含量相对于上述呋喃系树脂(A)为100重量份为0.2〜10重量份。
摘要:
There is provided a method for recovering indium, the method being capable of recovering indium having a high purity at simple and inexpensive steps in a short time and with a high recovery. After indium containing substances, such as ITO target scraps, are crushed, the crushed substances are ground until the percentage of coarse particles having a larger particle size than a predetermined particle size is not larger than a predetermined percentage. Thereafter, the ground substances are dissolved in an acid, and the solution thus obtained is neutralized with an alkali so that the pH of the solution is 0.5 to 4. Then, the solution is aged at a temperature of 60 to 70° C. for 3 hours or longer to deposit and remove hydroxides of predetermined metal ions in the solution. Then, hydrogen sulfide gas is blown into the solution to deposit and remove sulfides of metal ions which are harmful to electrolysis at the subsequent step, and thereafter, the solution thus obtained is used as an electrolytic solution for electrowinning indium metal to recover indium having a high purity.
摘要:
The present invention provides a process for producing an oriented thermoplastic polyester resin sheet which is excellent in tensile strength, tencile modulas and heat resistance, and a light laminate-molded body using the same, which has a low linear expansion coefficient and is excellent in impact resistance, durability, easiness of handling, productivity, and others. A process for producing an oriented thermoplastic polyester resin sheet, which includes: pultrusion-drawing a thermoplastic polyester resin sheet in an amorphous state at a temperature from the glass transition temperature of the thermoplastic polyester resin−20° C. to the glass transition temperature of the thermoplastic polyester resin+20° C.; and then drawing the resultant uniaxially at a temperature higher than the temperature for the pultrusion-drawing. A laminate-molded body, wherein a thermoplastic resin layer is laminated on each of the surfaces of the resultant oriented thermoplastic polyester resin sheet.
摘要:
The present invention provides a process for producing an oriented thermoplastic polyester resin sheet which is excellent in tensile strength, tencile modulas and heat resistance, and a light laminate-molded body using the same, which has a low linear expansion coefficient and is excellent in impact resistance, durability, easiness of handling, productivity, and others. A process for producing an oriented thermoplastic polyester resin sheet, which includes: pultrusion-drawing a thermoplastic polyester resin sheet in an amorphous state at a temperature from the glass transition temperature of the thermoplastic polyester resin −20° C. to the glass transition temperature of the thermoplastic polyester resin +20° C.; and then drawing the resultant uniaxially at a temperature higher than the temperature for the pultrusion-drawing. A laminate-molded body, wherein a thermoplastic resin layer is laminated on each of the surfaces of the resultant oriented thermoplastic polyester resin sheet.