Chemicals

摘要： 行业专家们表示,由HDPE制成的瓶盖将会激增,并将融入PCR和PIR。未来的设计还会将瓶盖与瓶子捆绑在一起。按照Nova Chemicals公司瓶盖市场经理Brant Wunderlich的观点,预计融入了消费后回收料(PCR)和工业回收料(PIR)的高密度聚乙烯(HDPE),将在未来的食品饮料包装及非食品包装用盖的生产中占据主导地位。对此,Wunderlich展望了2030年的瓶盖样子。

摘要： Catalytic conversion of CO_(2)into chemicals and fuels is a viable method to reduce carbon emissions and achieve carbon neutrality.Through thermal catalysis,electrocatalysis,and photo(electro)catalysis,CO_(2)can be converted into a wide range of valuable products,including CO,formic acid,methanol,methane,ethanol,acetic acid,propanol,light olefi ns,aromatics,and gasoline,as well as fi ne chemicals.In this mini-review,we summarize the recent progress in heterogeneous catalysis for CO_(2)conversion into chemicals and fuels and highlight some representative studies of diff erent conversion routes.The structure-performance correlations of typical catalytic materials used for the CO_(2)conversion reactions have been revealed by combining advanced in situ/operando spectroscopy and microscopy characterizations and density functional theory cal-culations.Catalytic selectivity toward a single CO_(2)reduction product/fraction should be further improved at an industrially relevant CO_(2)conversion rate with considerable stability in the future.

摘要： There are other names for cannabis in the market such as marijuana and hashish.Inhalation considers to be the most common way for consumption.As the inhaled cigarette which called in some communities(joint)contains 0.5 to 0.7 g of delta-9-THC,but the most common dose contains 5-25 mg THC.It can be smoked directly or through small pipes[6].It was demonstrated that the physiologic effects result from oral consumption are slower in onset and have longer duration compared to that with inhalation administration.As a consequence,the patients may lead to ingest more cannabis and be affected more strongly and for longer than intended.There are other products considered to increase the risk of toxicity such as tinctures,capsules and topical.These preparations are limited in use.Furthermore,the additional chemicals and adulterants participate in a particular way to increase the risk of toxicity.As most of cannabis users are unaware by the presence of these chemicals.The only way of identification is when the user subjected to toxicological evaluation as part of a forensic investigation,for example,if being arrested for driving while under the influence of cannabis[3].

摘要： 近日,印度Punjab Chemicals宣布已在Derabassi(旁遮普邦)成功启动苄草丹原药的生产,当前工厂产能为3,000吨/年。该公司苄草丹的生产能力是通过其东南亚合作伙伴的技术转让获得。

摘要： Circularise和保时捷与领先的材料供应商Borealis、科思创和Domo Chemicals一起推出了一个区块链可追溯项目,作为Startup Autobahn计划的一部分。通过将材料循环数字化,Circularise能够在整个供应链中创建一条数字化链条,从而实现材料和CO2足迹的追踪。

摘要： 据“www.ptonline.com”报道,Nova Chemicals Corp.(美国匹兹堡办事处)新推出了Novapol TRx0338-U和Novapol TRx0535-U两种下一代聚乙烯(PE)滚塑树脂,旨在帮助滚塑机提高前所未有的生产率和零件性能。大量测试表明,Novapol TRx0338-U和Novapol TRx0535-U树脂可将循环时间缩短30%,并且提供的加工窗口比传统的滚塑树脂至少宽15%。

摘要： Toxicology,as an emerging interdisciplinary subject,has a profound impact on every individual,from food safety to drug safety,from biological safety to ecological safety.Every day,human beings are creating new chemicals,including pesticides,industrial chemicals,food additives,medicines and so on.These new chemicals need clear toxicity assessment and exposure based risk assessment conclusions before they are put into use.Because some preclinical and clinical trials are too hasty and toxicology is not systematically studied,many safety problems of new drugs are constantly emerging in clinical application,resulting in many serious drug hazards worldwide.

摘要： 诺瓦化学公司（Nova Chemicals Corp.）正在帮助薄膜制造商、生产线和品牌商为快速增长的食品餐盒行业开发高性能的可持续包装解决方案.该公司的新树脂结合了多层薄膜设计的专业知识,加上对电商配送的深刻了解,因此能够合作解决这些新兴包装的需求.

摘要： Vexcon Chemicals公司日前宣布向市场推出ProCoat品牌混凝土用环氧和聚氨酯型高性能耐用地坪涂料。新产品是高耐湿性、100％固含量涂料，旨在保护和密封各种混凝土表面。这种厚浆型产品有效防止了水分的影响问题，如起泡和剥落。其与专用底漆共同使用时，可应用于全新混凝土表面。这一无缝地坪体系可结合装饰彩砂或乙烯基塑料粒，创造出各种纹理和美学外观，用于各类对环境要求苛刻的工业、机构和商业领域。产品特性包括：卓越的耐用性、耐化学腐蚀性、快速干燥、优秀的附着力、抗紫外线、耐湿性、延长使用寿命等。

摘要： 近日,由浙江大学和浙江常发粮油食品有限公司提供的《美国食品化学法典（Food Chemicals Codex,FCC）油茶籽油标准》[（编号：CAS：（225233-97-6）]已获美国药典委（United States Pharmacopeia,USP）批准出版发布。