台塑集团

1　台塑集团关系企业台塑集团的关系企业由 5部分组成 :总管理处岛内生产企业　包括 :台湾塑胶公司、南亚塑胶公司、台湾化学纤维公司、台塑重工公司、台塑石化公司、南亚科技公司、南亚电路板公司、台湾小松电子公司、台湾必成公司、麦寮汽电公司、台塑汽车公司、台宇汽车公司、台塑环保科技公司、台塑旭弹性纤维公司、台塑大金公司、长庚生物科技公司 ;海外生产企业　包括 :台塑海运公司、台塑美国公司、南亚美国公司、南亚美洲公司、印尼南亚公司、INTEPLAST等 ;医疗与教育事业　包括 :长庚纪念医院、长庚大学、长庚护专、明志技术学…     

因多拉玛收购土耳其聚酯生产商

<正>泰国因多拉玛公司6月3日表示,公司已经收购了土耳其聚酯(PET)生产商Artenius Turk PET公司的全部股权。Artenius公司拥有13万t/a PET产能。此前,因多拉玛公司已在今年4月份宣布将收购土耳其当地领先的聚酯生产商——Sasa聚酯工业公司。因多拉玛表示,Sasa聚酯工业公司和Artenius公司的地理位置临近,这将有利于公司对这两家公司进行整合,以产生更多的协同效应。因多拉玛表示,公司收购Sasa聚酯工业公司的交易正在等待管理机构的批复。因多拉玛公司CEO Aloke Lohia表示:"公司正寻     

哥伦比亚化学公司易主

美国哥伦比亚化学公司是菲尔普道奇（Phelps Dodge Co．）公司的子公司，是世界第3大炭黑生产商。最近菲尔普道奇公司宣布，它把哥伦比亚化学公司出售给一家新公司。这家新公司是由美国一方证券合伙公司（One Equity Partners Corp，JP摩根．蔡斯公司旗下的一家私营证券公司）和韩国DC化学公司组建的合资企业。     

2005年中石化经济效益下降

为了缓解化肥短缺，印度政府计划把3家国营化肥公司合并成1家合资公司，这3家公司分别是Krishak Bharati公司、国家肥料公司和Rashtriya化学和肥料公司。成立合资公司的目的是提高与印度私营化肥公司竞争的能力，增加化肥和生产化肥所需原料的进口量。     

国内外简讯8则

复合挤出汽车车门密封条的彩色装饰覆盖层。美国Kimberly-Clark保健品公司将用合成材料代替天然胶乳制造医用手套。陶氏化学公司与俄罗斯Izolan公司成立合次公司。埃克森美孚化学公司和沙特碱工业公司将建合资公司。埃克森美孚拉出Santoprene TPV B100。Wacker化学公司推出液体硅橡胶。丹麦Viking橡胶公司在越南建新厂。道-赖克霍专用胶乳公司提价。     

国外馏分油加氢裂化技术新进展

回顾总结了近年来国外加氢裂化技术的新进展,主要介绍了CLG公司、UOP公司、Criterion催化剂公司、Haldor Topsoe公司、Albemarle公司和Axens公司加氢裂化催化剂及加氢裂化工艺技术的发展现状.     

泰国Indorama公司收购性能纤维公司在亚洲的业务

泰国Indorama风险投资公司与工业聚酯纤维和面料的主要生产商美国性能纤维公司于2014年12月8日宣布,双方已经签署了一项最终协议,根据协议,Indorama公司将收购性能纤维公司的亚洲制造业务。Indorama公司将从私人投资公司Sun资本伙伴公司的子公司手中收购性能纤维公司的亚洲业务。     

抓住有关提单的小细节

1998年3月,中国某进出口公司（下称M公司）与新加坡T公司签订了出口3000公吨散装货物的买卖合同,贸易条件是FOB。5月10日,M公司收到经T公司申请开证行开来的信用证,要求M公司先装运约1000公吨的货物,并在代表该批货物的提单的托运人栏内填写T公司的名称。5月21日,中方M公司将1000公吨的货物交给某远洋运输公司所属的H轮承运,并请求某外轮代理公司在提单托运人栏内填写T公司的名称。     

Degussa公司计划建新型环氧丙烷装置

Degussa公司正在按部就班地使其过氧化氢基环氧丙烷（HPPO）技术工业化。该公司已将这种由它与德国工程公司Uhde公司合作开发的技术授权给韩国的SKC化学公司，该韩国公司计划在韩国的Ulsan建1套10万t/a的环氧丙烷（PO）装置，于2008年开始。为了向该装置提供过氧化氢原料，Degussa公司与美国Utah州的Headwaters公司的合资公司Degussa-Headwaters公司以3500万美元从芬兰Kemira公司购买了1套过氧化氢装置，     

三菱化学公司在新加坡建立PTA公司

三菱化学公司（MCC）于2009年5月30日宣布在新加坡建立PTA公司,该公司将部分负责三菱化学公司的精对苯二甲酸（VIA）业务。三菱化学公司已将其PTA业务总部从日本迁移到新加坡,称之为MCC PTA亚太公司的新公司已投入运作。     

Failure of tannic acid to inhibit digestion or reduce digestibility of plant protein in gut fluids of insect herbivores

The rate of hydrolysis of the abundant foliar protein, ribulose-1,5-bisphosphate carboxylase/oxygenase (RuBPC), in enzymatically active gut fluid ofManduca sexta larvae is very rapid and is unaffected by the presence of tannic acid, even when tannic acid is present in the incubation mixture in amounts in excess of the amount of RuBPC. When this protein is dissolved in the denatured gut fluids ofM. sexta larvae orSchistocerca gregaria nymphs, large amounts of tannic acid must be added to bring about the precipitation of significant quantities of protein. The ability of insect gut fluid to prevent the formation of insoluble tannin-protein complexes is due to the presence of surfactants. On the basis of our results and a review of the findings of other investigators, we argue that there is no evidence that tannins reduce the nutritional value of an insect's food by inhibiting digestive enzymes or by reducing the digestibility of ingested proteins and, further, that the failure of tannins to interfere with digestion is readily explained on the basis of well-documented characteristics of the digestive systems of herbivorous insects. In challenging the currently popular notion that tannins are digestibility-reducing substances, we do not challenge the general utility of either the apparency theory or resource availability theory of plant defense. In debating the merits of these two analyses of plant-herbivore interactions, however, the demise of tannins as all-purpose, dose-dependent, digestibility-reducing defensive substances must be taken into account.     

机制砂岩性与级配对混凝土抗硫酸盐侵蚀性能的影响

为了探究不同岩性、不同级配机制砂对混凝土性能的影响,对三种不同岩性机制砂混凝土及天然河砂混凝土的工作性和抗压强度进行研究。此外,对比分析了四种混凝土在干湿循环制度下的抗硫酸盐侵蚀性能。结果表明,天然河砂混凝土的工作性优于机制砂混凝土,钙质机制砂混凝土的工作性略好于硅质机制砂混凝土。机制砂混凝土的抗压强度优于天然河砂混凝土,在硫酸盐侵蚀循环作用下的力学性能变化趋势与天然河砂混凝土基本一致。在相同级配条件下,机制砂混凝土的抗蚀系数高于天然河砂混凝土;机制砂岩性并不会对混凝土抗硫酸盐侵蚀性能带来负面影响。级配良好的机制砂可以增强混凝土抗压强度和抗硫酸盐侵蚀性能。     

Functional properties of proteins in foods

The measurement of functionality of protein food ingredients has developed somewhat haphazardly, probably due to the wide range of proteins used as ingredients and the diversity of foods. Studies of the physiochemical properties of proteins should enable prediction of a proteins response to process environments and prove more fruitful than many of the empirical measurements of functionality. The effects of pH, salt type and concentration on the phase behaviour of the oilseed globulin and arachin, demonstrates the complexity of protein solubility and the inadequacies of simple tests that have arisen. Studies of the effects of salts and conditioning on meat fibres, coupled with measurement of the location of water in pellets from water holding tests enable the latter to be applied with increased confidence. Comparison of the endothermic transitions observed on heating with the development of storage and loss moduli allow the contributions of domains of skeletal muscle myosin to gel structure to be investigated.     

Aggregation pheromone system of adult gregarious desert locust schistocerca gregaria (forskal)

Six electrophysiologically active aromatic compounds, viz., anisole, benzaldehyde, veratrole, guaiacol, phenylacetonitrile, and phenol, were identified in the volatiles of older-adult male desert locust. Young adults and females of all age groups produced none or only trace quantities of these compounds. Comparison of the aggregation responses of young and older adults to the crude, older-adult, volatile extract and different synthetic blends of the six compounds showed that the aggregation pheromone system of the adult gregarious locust consists of phenylacetonitrile, guaiacol, phenol, and benzaldehyde. Like the crude volatile extract of older males, neither the synthetic blend of the six compounds nor the adult pheromone blend evoked any significant aggregation responses from nymphs. These results confirm our previous report of sexual differentiation in the production of adult aggregation pheromone in the desert locust and of the evidence of two distinct aggregation pheromone systems in the two stages of the insect.     

Molecular mechanics modelling of interfacial energy and flexibility on cellulose

Molecular mechanics modelling is used to calculate the energies of interaction, hence the molecular level energy of adhesion at the interface with crystalline cellulose I of three different photopolymerizable primers and of a polyester varnish at the interface with the primer/cellulose assembly. The energy of interactions for just one of the primers with the statistically most common conformation of amorphous cellulose has also been obtained for comparison. Experimental results of adhesion by a standard peel test and by thermomechanical analysis, in which the effect of viscoelastic energy dissipation by crack tip propagation has been respectively minimized or is not present, hence in which the energy of interfacial interaction is nothing else but the work of adhesion, correlated well with the energies of interaction calculated by molecular mechanics. An equation correlating the energy of interaction at each finish/cellulose interface with the deflection derived by thermomechanical analysis, and with the number of internal bond rotational degrees of freedom as well as the degree of networking of the finish, has been derived and is presented. A relationship between the intrinsic fracture energy Go and the molecular mechanics-derived energy of interaction at the interface equating this to the square of the work of adhesion is obtained and is presented.     

Distribution of birch (Betula SPP.), willow (Salix SPP.), and poplar (Populus SPP.) secondary metabolites and their potential role as chemical defense against herbivores

Isoprenoids and phenolics, major metabolites of important browse species, are reviewed in regard to concentrations, distribution within tissues, and between species. Seasonal variation of specific substances and changes with age of the plant are also considered. The distribution of substances may affect food selection and feeding behavior of animals. Wild mammalian herbivores tend to avoid plant parts rich in these substances, in spite of high nutritional content of the plant tissue. Possible mechanisms for defense by plants against depredation by mammalian herbivores are discussed within the framework of the plants' biochemistry.     

Sr改性Cu催化剂的果糖加氢制备甘露醇性能

使用共沉淀法制备负载Cu催化剂。通过添加碱土金属Sr，对Cu催化剂进行了改性，以提高Cu催化剂在果糖加氢制备甘露醇过程中的活性和选择性。采用ICP-MS、TEM、XRD、H₂-TPR、XPS和CO₂-TPD等对所制备的催化剂进行了系统表征。结果表明：Sr的添加能增大催化剂的比表面积，促进活性组分Cu的分散，从而提高了催化剂的活性，并且增加了催化剂的碱性，使果糖优先形成β-呋喃糖中间体，从而提高了甘露醇的选择性。在果糖浓度为1.1 mol·L^-1、催化剂用量为反应物质量的6%、反应温度为373 K、反应氢压为4.0 MPa、Cu/Sr原子比为7∶1的反应条件下，果糖转化率为99%，甘露醇的选择性为79%。催化剂循环使用了20次，其催化稳定性基本保持不变。     

接触式机械密封界面泄漏机理研究的关键科学问题

密封界面的泄漏机理是机械密封研究与应用的焦点问题之一,涉及泄漏通道表征、粗糙表面的接触力学模型、界面微观形貌变化以及介质流体在泄漏通道中的流动阻力等问题。回顾了近几十年国内外接触式机械密封泄漏通道模型的研究,深入分析了G-W模型、M-B模型和Persson模型3种粗糙表面接触力学模型的贡献和存在的问题,提出了一种基于逾渗理论的泄漏通道新模型;探讨了密封界面的分形参数、泄漏通道的流动阻力以及密封界面的有限尺寸效应对泄漏特性的影响,指出孔隙连通贯穿界面和流体流经贯穿通道的流动阻力小是密封界面产生泄漏的成因,以及泄漏通道的形成和泄漏通道内的流体流动特性是泄漏机理研究的主要方向。     

Measured kinetics of the acid-catalysed hydrolysis of sugar cane bagasse to produce xylose

Experimental trials of the water hydrolysis of bagasse to produce xylose, arabinose and glucose were conducted using a temperature-controlled microwave digester. The experimental variables were temperature, ratio of water mass to bagasse mass, type of bagasse material and reaction time. The pH of the liquid and concentration of dissolved xylose, arabinose and glucose were measured at the completion of each trial. Kinetic modelling of the global rates of formation of monosaccharide products was performed using schemes based on earlier researchers’ models of acid hydrolysis using mineral acids. For the most plentiful product, xylose, the most accurate kinetic model of the global reactions was determined to be two parallel pathways for hydrolysis of xylan to xylose followed by a single pathway for xylose decomposition. The calculated activation energies of the reactions were within the range reported by other researchers for the hydrolysis of a range of lignocellulosic materials using mineral acids.