Treatment of 1-(1-iodoalkyl)-1-silacyclobutanes with t-BuOK or AgOAc provided 2-alkyl-1-silacyclopentanes which were easily converted into 1,4-diols by oxidative cleavage of carbonsilicon bonds.
Synthesis of saturated primary-secondary ?-glycols
作者:V. G. Bukharov、T. E. Pozdnyakova
DOI:10.1007/bf00909415
日期:1961.1
THERMOMORPHIC PRESSURE SENSITIVE ADHESIVES
申请人:MINNESOTA MINING AND MANUFACTURING COMPANY
公开号:EP0902816A1
公开(公告)日:1999-03-24
TITANIUM-BASED CATALYST SHOWING EXCELLENT ACTIVITY AND SELECTIVITY IN POLYCONDENSATION REACTIONS
申请人:Wiegner Jens-Peter
公开号:US20120316316A1
公开(公告)日:2012-12-13
Method for producing polyesters using titanium atrane catalysts is disclosed. Also disclosed are methods for making the titanium atrane catalysts. The titanium atrane catalysts are useful as esterification and/or polycondensation catalysts, have similar activity, color and byproduct formation as conventional catalyst systems, but with reduced toxicity and regulatory concerns.
(EN) A thermomorphic pressure sensitive adhesive is provided. The adhesive includes a continuous crystalline polymer component and a discrete crosslinked elastomeric polymer component. The pressure sensitive adhesive has at least one distinct crystalline melting point and is capable of transitioning between a secondary shape and a primary shape upon an increase in temperature.(FR) L'adhesif autocollant thermomorphique comprend un composant polymère cristallin continu et un composant polymère élastomère réticulé discret. L'adhésif autocollant possède au moins un point de fusion cristallin distinct et peut transiter entre une forme secondaire et une forme principale lors d'une augmentation de température.