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- The easy procedure provided a neat environment-friendly synthetic method for pentaerythritol diacetals in high yields and the catalyst was reusable. 该方法操作简便，收率高，催化剂可重复使用，是一种环境友好型催化反应。
- pentaerythritol diacetal 季戊四醇双缩醛
- Synthesis of Pentaerythritol Diacetals and Diketals Catalyzed by Ammonium Hydrogen Sulfate 微波照射硫酸氢铵催化季戊四醇双缩醛、酮的合成
- The yieldsof pentaerythritol and dipentaerythritol were above 20percent under the optimum reaction parame... 在此工艺条件下,单、双季戊四醇的收率均在20%25以上。
- Novelty intumescent flame retardant(IFR) was made from phosphoric acid,pentaerythritol(PER) and melamine. 使用磷酸、季戊四醇、三聚氰胺合成了一种膨胀型阻燃剂。
- Dibromo neopentyl glycol was prepared from pentaerythritol and hydrobromic acid. 由季戊醇、氢溴酸制备了二溴新戊二醇。
- The yieldsof pentaerythritol and dipentaerythritol were above 20 percent under the optimum reaction parameters. 在此工艺条件下，单、双季戊四醇的收率均在20%25以上。
- In the production of polyurethane paint,pentaerythritol is em ployed in the place of alkyd resin . 介绍以季戊四醇代甘油制聚氨酯漆醇酸组份的配方、工艺及树脂性能。
- An economical and practical detector in pentaerythritol production, its principle and application are introduced. 介绍季戊四醇生产中比较经济实用的一种检测装置，对其原理和实际应用加以论述。
- But the waterproof is in high to low order as: pentaerythritol phosphate> aminated pentaerythritol phosphate> ammonium monoacid phosphate. 耐水阻燃性作用大小为:磷酸季戊四醇缩合物>磷酸季戊四醇缩合物的铵盐>磷酸氢二铵。
- Dibenzalpenlpentaerythritol was directly synthesized from benzaldehyde and pentaerythritol under microwave irradiation with sulfates used as catalyst. 在微波辐射下用硫酸盐催化合成了标题化合物。
- The ultra-thin intumescent coatings for steel structure were prepared by ammonium dihydrogen phosphate(ADP),pentaerythritol,melamine and acrylic resin. 以磷酸二氢铵、季戊四醇、三聚氰胺及丙烯酸树脂为原料研制了一种超薄膨胀型丙烯酸树脂钢结构防火涂料。
- A series of rosin pentaerythritol ester polyoxylethylene ether (RPEO) with different polymerization degree (n) of epoxy ethane (EO) were synthesized. 合成了不同聚合度的松香季戊四醇酯聚氧乙烯醚(RPEO)。
- Flame retardation of EVA copolymer using melamine phosphate(MP) and pentaerythritol(PER) as intumescent flame retardants(IFR) was investigated. 研究了三聚氰胺磷酸盐(MP)和季戊四醇(PER)作为膨胀型阻燃剂(IFR)在乙烯-醋酸乙烯酯共聚物(EVA)中的阻燃作用。
- The alkyd modified t-octylphenolic resin was prepared by alcoholized linseed oil with pentaerythritol,rosin and octylphenolic resin. 亚麻油用季戊四醇醇解后与松香对辛基酚醛树脂进行改性合成了醇酸改性辛基酚醛树脂。
- The application prospects and properties of antioxidant distearyl pentaerythritol diphosphite at home and abroad were introduced in this paper. 介绍了抗氧剂二硬脂酰季戊四醇二亚磷酸酯在国内外的应用情况,发展前景及应用特点。
- Halogen-free flame retardant ABS was prepared by using intumescent flame retardant (IFR) composed of ammonium polyphosphate and pentaerythritol. 采用聚磷酸铵与季戊四醇组成的膨胀型阻燃剂(IFR)制备了膨胀型无卤阻燃ABS材料。
- The whole process can be divided into two steps:the synthesis of pentaerythritol diphosphite and distearyl pentaerythritol diphosphite. 本文以季戊四醇、亚磷酸三乙酯和十八醇为原料,在实验室合成了二硬酯基季戊四醇二亚磷酸酯。
- Spiroglycol is synthesized by circulating one-pot method with formaldehyde,isobutylaldehyde and pentaerythritol as main materials under catalysts. 以甲醛、异丁醛和季戊四醇为主要原料,在催化剂作用下利用循环一锅法合成螺二醇。
