橡胶增粘剂TKO系列产品的开发及应用

ＴＫＯ系列产品为对－特辛基苯酚甲醛树脂。试验表明，其增粘性能比Ｃ－Ｈ结构的石油树脂高１倍多；增粘作用之有效性，产品质量与性能均达到国外同类产品的先进水平。代表产品ＴＫＯ－９０之粘合性研究对实际使用具有指导意义。     

国外动态

高级烯烃需求2000年前将年增5.8％化学系统公司新的研究报道,世界高级烯烃(除丁烯—1外)1990—2000年之需求将年增5.8％。全球之烯烃41％用于生产聚合物(大部分用于生产LLDPE),34％用于生产洗涤剂。北美生产之烯烃约占70％。化学系统公司称,需求增长最快的是C~6—C_(10)。C_6—C_8用于聚乙烯之共聚单体;C_(10)用于聚α烯烃合成润滑油之基础原料。全球1990年消耗近150万tα-烯烃,(其中通过乙烯齐聚生产的有120万t)。     

常德市创新化工科技有限公司

增稠悬浮剂CD-1(俗称SF-1)CD-1是一种丙烯酸(酯)共聚物。它是一种新型液态丙烯酸流变修饰剂,在用于以表面活性剂为基础的个人清洁产品和皂基清洁系列产品时,可起到悬浮、稳定、增稠的作用,并可改进产品外观。可完全替代进口产品。★悬浮能悬浮不溶于水的组份,如:彩色粒子、硅油、ZPT、钛白粉等。★流变能改变产品流变效果,防止产品果冻。★增稠中和后能回酸增稠,并能与盐协同增稠。增稠悬浮剂CD-2(俗称SF-2)     

新国家标准GB/T1.3《产品标准编写规定》简介

国家标准GB／T1.3—1997《标准化工作导则第1单元：标准的起草与表述规则第3部分：产品标准编写规定》已发布并将实施。该国标是根据GB／T1．1—1993对GB1．3—87进行修订的，是GB／T1．1—1993第4章“产品标准常用的一种编排”的具体化。由于《产品标准编写规定》没有相应的国际标准，故对GBI．3修订时，主要掌握了如下原则；（1）标准的总体框架结构，产品标准的构成要素，起草规则保持与GB／T1．1—1993一致，使之与国际接轨。（2）在不违背GB／T1．1—1993的前提下，为兼顾我国当前的需要和标准的连续性，尽可能多的保留GB1．3…     

上海信息

四新园地 高顺式氯氰菊酯在金山农药厂投产 由上海市农药研究所与金山农药厂联合开发的高顺式氯氰菊酯由氯氰菊酯的高效异构体组成,杀虫活性比常规氯氰菊酯高5倍以上。其主要成分为α—氰基—3—苯氧苄基—3—(2,2—二氯乙烯基)—2,2—二甲基环丙烷羧酸酯之1R顺式S和1S顺式R异构体1:1的混合物。 该产品的中试首批产品,达到95％以上的设计要求,其中试生产已通过市级鉴定。厂方准     

羟基乙酸对增稠体系粘度影响的研究

本文主要研究了70%羟基乙酸(AHA)对护肤产品配方常规4种增稠体系(黄原胶、羟乙基纤维素、U21以及TR-1)粘度的影响。实验数据表明:4种常规增稠体系在含有2%羟基乙酸护肤品配方体系中,都难以发挥增稠体系的作用。同时,本文也摸索并提出一种复配的增稠组合,本组合不仅能有效的增稠含有羟基乙酸体系的粘度,而且还能赋予产品水凝胶质地的感官特性。     

己二酸装置增稠器单元操作的优化

通过对己二酸装置增稠器的介绍与说明,对己二酸增稠器在增稠过程中产品的颗粒度的问题进行分析,提出了针对性的改善措施,通过优化操作己二酸在增稠器的浓度和结晶颗粒度。降低己二酸产品中硝酸根含量,提高己二酸产品的颗粒度。     

广东石化信息

AB——04汽车漆通过新产品鉴定 红云涂料厂自行研制开发的新产品AB——04内增塑型聚酯改性丙烯酸汽车漆(商品名:AB——04各色双组分汽车漆),通过了广州市经委组织的技术鉴定。经评审,专家们一致认为:该产品质量达到国内、接近国外同类产品的先进水平,填补了国内空白。     

新型非离子性增黏剂的开发及其在化妆品中的应用

聚氧丙烯(1)椰油酸单异丙醇酰胺(商品名Amizett IPC)是一种新型的非离子型增黏剂。不仅具有与椰油酸二乙醇酰胺(6501)同等的增黏效果，还具有增泡性、泡沫稳定性、在配方中的低温稳定性以及广泛的pH范围内的产品稳定性。该产品融点低于椰油酸-乙醇酰胺，制剂操作方便。尤其值得重视的是该产品的安全性能。对皮肤和眼睛剌激性低微。变异原性也呈阴性。最后，还介绍了香波、浴剂和洗面奶等化妆品的应用实例。     

新型超支化聚酯的合成及增塑剂性能研究

以聚酯多元醇DJ1为原料,通过酯化反应合成产物DJ1-C8、DJ1-C5、DJ1-C2并进行表征,同时对合成的产品进行PVC增塑实验及其与DEHP的复配增塑实验,实验后的结果表明,DJ1系列产品酯化比较完全,并且与PVC的相容性良好。增塑性能方面,该系列聚酯型增塑剂与DEHP复配使用时能明显降低DEHP的挥发率与溶出率,而且硬度等增塑剂性能方面没有明显的降低。     

不同引发体系作用下合成疏水缔合聚丙烯酰胺衍生物的研究

摘 要 疏水缔合聚丙烯酰胺衍生物是一种大分子主链或侧链上含有少量疏水基团的新型水溶性功能高分子材料，在水溶液中具有良好的耐盐、耐温、增粘作用和贮存稳定性。利用分散聚合法，研究了采用不同体系的自由基引发剂及引发剂摩尔组成对聚合反应时间和聚合物分子量的影响，最终选择一种较好的引发体系。     

Effect of <Emphasis Type="Italic">Fabp1/Scp</Emphasis>-<Emphasis Type="Italic">2/Scp</Emphasis>-<Emphasis Type="Italic">x</Emphasis> Ablation on Whole Body and Hepatic Phenotype of Phytol-Fed Male Mice

Liver fatty acid binding protein (Fabp1) and sterol carrier protein‐2/sterol carrier protein‐x (SCP‐2/SCP‐x) genes encode proteins that enhance hepatic uptake, cytosolic transport, and peroxisomal oxidation of toxic branched‐chain fatty acids derived from dietary phytol. Since male wild‐type (WT) mice express markedly higher levels of these proteins than females, the impact of ablating both genes (TKO) was examined in phytol‐fed males. In WT males, high phytol diet alone had little impact on whole body weight and did not alter the proportion of lean tissue mass (LTM) versus fat tissue mass (FTM). TKO conferred on dietary phytol the ability to induce weight loss as well as reduce liver weight, FTM, and even more so LTM. Concomitantly TKO induced hepatic lipid accumulation, preferentially threefold increased phospholipid (PL) at the expense of decreased triacylglycerol (TG) and total cholesterol. Increased PL was associated with upregulation of membrane fatty acid transport/translocase proteins (FATP 2,4), cytosolic fatty acid/fatty acyl‐CoA binding proteins (FABP2, ACBP), and the rate limiting enzyme in PL synthesis (Gpam). Decreased TG and cholesterol levels were not attributable to altered levels in respective synthetic enzymes or nuclear receptors. These data suggest that the higher level of Fabp1 and Scp2/Scpx gene products in WT males was protective against deleterious effects of dietary phytol, but TKO significantly exacerbated phytol effects in males.     

Sterol Carrier Protein-2/Sterol Carrier Protein-x/Fatty Acid Binding Protein-1 Ablation Impacts Response of Brain Endocannabinoid to High-Fat Diet

Brain endocannabinoids (EC) such as arachidonoylethanolamine (AEA) and 2-arachidonoylglycerol (2-AG) primarily originate from serum arachidonic acid (ARA), whose level is regulated in part by a cytosolic ARA-binding protein, that is, liver fatty acid binding protein-1 (FABP1), not expressed in the brain. Ablation of the Fabp1 gene (LKO) increases brain AEA and 2-AG by decreasing hepatic uptake of ARA to increase serum ARA, thereby increasing ARA availability for uptake by the brain. The brain also expresses sterol carrier protein-2 (SCP-2), which is also a cytosolic ARA-binding protein. To further resolve the role of SCP-2 independent of FABP1, mice ablated in the Scp-2/Scp-x gene (DKO) were crossed with mice ablated in the Fabp1 gene (LKO) mice to generate triple knock out (TKO) mice. TKO impaired the ability of LKO to increase brain AEA and 2-AG. While a high-fat diet (HFD) alone increased brain AEA, TKO impaired this effect. Overall, these TKO-induced blocks were not attributable to altered expression of brain proteins in ARA uptake, AEA/2-AG synthesis, or AEA/2-AG degrading enzymes. Instead, TKO reduced serum levels of free ARA and/or total ARA and thereby decreased ARA availability for uptake to the brain and downstream synthesis of AEA and 2-AG therein. In summary, Scp-2/Scp-x gene ablation in Fabp1 null (LKO) mice antagonized the impact of LKO and HFD on brain ARA and, subsequently, EC levels. Thus, both FABP1 and SCP-2 participate in regulating the EC system in the brain.     

AM/AMPS/DMAM三元共聚物的合成及性能研究

为提高驱油用聚合物的耐温抗盐性,采用N,N-二甲基丙烯酰胺(DMAM)与2-丙烯酰胺基-2-甲基丙磺酸(AMPS)、丙烯酰胺(AM)通过氧化还原引发剂体系聚合方法合成了AM/AMPS/DMAM三元共聚物,用正交实验法确定了最佳合成方案为:温度40℃,pH值为11,引发剂浓度为0.18%,单体浓度为13%,DMAM加量为2%。对共聚物的耐盐性及热稳定性进行测试,在标准盐水中共聚物为2500 mg/L,温度为30℃时,粘度可达到35.3 mPa.s;温度为90℃时,粘度为9.70 mPa.s。结果表明,AM/AMPS/DMAM三元共聚物具有较好的抗盐性能和增粘性能,但抗温效果并不明显,有待进一步改进。     

Lack of GABARAP-Type Proteins Is Accompanied by Altered Golgi Morphology and Surfaceome Composition

GABARAP (γ-aminobutyric acid type A receptor-associated protein) and its paralogues GABARAPL1 and GABARAPL2 comprise a subfamily of autophagy-related Atg8 proteins. They are studied extensively regarding their roles during autophagy. Originally, however, especially GABARAPL2 was discovered to be involved in intra-Golgi transport and homotypic fusion of post-mitotic Golgi fragments. Recently, a broader function of mammalian Atg8s on membrane trafficking through interaction with various soluble N-ethylmaleimide-sensitive factor-attachment protein receptors (SNAREs) was suggested. By immunostaining and microscopic analysis of the Golgi network, we demonstrate the importance of the presence of individual GABARAP-type proteins on Golgi morphology. Furthermore, triple knockout (TKO) cells lacking the whole GABARAP subfamily showed impaired Golgi-dependent vesicular trafficking as assessed by imaging of fluorescently labelled ceramide. With the Golgi apparatus being central within the secretory pathway, we sought to investigate the role of the GABARAP-type proteins for cell surface protein trafficking. By analysing the surfaceome composition of TKOs, we identified a subset of cell surface proteins with altered plasma membrane localisation. Taken together, we provide novel insights into an underrated aspect of autophagy-independent functions of the GABARAP subfamily and recommend considering the potential impact of GABARAP subfamily proteins on a plethora of processes during experimental analysis of GABARAP-deficient cells not only in the autophagic context.     

环保硬制品用稳定剂CZX-908的研发及其应用

文章简要介绍了环保硬制品用稳定剂CZX-908的研制和应用,重点论述了其主要组分高分子酯基的钙盐化合物的合成和性能。CZX-908是在本公司原有的技术基础进行复配研发出来的。通过与国内外同类产品对比,我们发现CZX-908是一款更适合用于各种管材、型材等硬制品的加工生产。     

防火防爆异型橡胶软管的制备

介绍了防火防爆异型橡胶软管的制备过程如结构设计、胶料配方设计和生产工艺等。产品设计为双腔并列结构，两条输电线路之间磁力线互相抵消。由于产品应适合防火防爆要求，主体材料选用氯丁橡胶。采用模压分段硫化工艺，设计新的半封闭管坯工艺。产品具有外形美观、挺性好、易于连接和固定、安全性能好、使用寿命长等特点。     

Identification of radiolytic compounds from beef

Several previous papers have dealt with the forma-tion of radiolysis products in fats, triglycerides and fatty acids. Size excusion chromatography now pro-vides a means of separating larger, less volatile com-pounds, and its application to irradiated beef has resulted in a nearly complete analysis of the radio-lytic products formed. The components have been identified by gas chromatography/mass spectrometry (GC/MS).     

Consumption habits of apiary products in an elder collective

The aim of this study was to analyse the consumption habits of bee products such as: honey, bee pollen, royal jelly and propolis in the elderly of different places of Spain. Honey is an energetic food of its own, and it can also help to overcome several diseases; due to its components that have a beneficial effect in our health. These facts turn honey into a valuable constituent of one's nutrition specially in ancient people. This report demonstrates the knowledge and consumption habits of these persons. Date came from a questionnaire about preferences, places where they buy these products, time and amount of consumption, knowledge of the quality of these products, etc. The results suggest that the vast majority of the people inquired are regular consumers of honey and we also would like to underline the high rate of knowledge of its nutritional value and its medicinal qualities. However, most of the elderly inquired do not know about other apiary products such as bee propolis.     

辣根的化学成分及其生物活性研究进展

辣根为十字花科辣根属多年生草本植物,主要成分为硫代葡萄糖苷及其水解产物,具有抗肿瘤、抗菌等多种药理作用。本文对辣根中硫代葡萄糖苷及其水解产物的结构特征、分离分析方法以及生物活性等研究进行了综述。