A composition of polyester polyol resins comprising a mixture of α,α-branched alkane carboxylic glycidyl esters derived from butene oligomers characterized in that the sum of the concentration of the blocked and of the highly branched isomers is maximum 55%, preferably below 40%, and most preferably below 30% weight on total composition.
GLYCIDYL ESTERS OF ALPHA, ALPHA BRANCHED NEONONANOIC ACIDS, SYNTHESIS AND USES
申请人:Le Fevere de Ten Hove Cédric
公开号:US20140316030A1
公开(公告)日:2014-10-23
The invention relates to a manufacturing process for the preparation of α,α-branched alkane carboxylic acids providing glycidyl esters with an improved softness or hardness of the coatings derived thereof.
In which the mixture of neononanoic acid providing a high hardness is a mixture where the sum of the concentration of the blocked and of the highly branched isomers is at least 50%, preferably above 60% and most preferably above 75%. In which a mixture of neononanoic acids providing soft polymers is a mixture where the concentration of blocked and highly branched isomers is maximum 55%, preferably below 40% and most preferably below 30%.
Working fluid composition for refrigerating machine
申请人:Kao Corporation
公开号:EP0475751A1
公开(公告)日:1992-03-18
The present invention is directed to a working fluid composition for refrigerating machine comprising: a hydrofluorocarbon and an ester formed between a neopentylpolyol and a saturated branched aliphatic monocarboxylic acid having a carbon number of 7 to 9.
The working fluid composition of the present invention is excellent in compatibility, lubricity, thermal stability and insulating property.
Ester compounds possessing heat stability in the presence of a metal and prepared from di- to nona- hydric hindered alcohols having 5 to 15 carbon atoms and saturated aliphatic monocarboxylic acids having 3 to 20 carbon atoms or derivatives thereof, characterized in that the proportion of the branched carboxylic acids or derivatives thereof in all the carboxylic acids or derivatives thereof is at least 50 % by mole and the ester compounds have a hydroxyl value of at most 30 mg KOH/g and an acid value after the sealed tube test of at most 10 mg KOH/g: and a lubricating oil composition characterized by containing at least 20 % by weight of the ester compounds. Thus the invention provides ester compounds possessing excellent heat stability in the presence of a metal, and a lubricating oil composition and a hydraulic fluid composition for refrigerators, each composed mainly of the ester compounds.
Verfahren zur Herstellung von Vinylestern aus Butenoligomeren
申请人:Oxeno Olefinchemie GmbH
公开号:EP1033360A1
公开(公告)日:2000-09-06
Die Erfindung betrifft die Herstellung von Vinylestern aus Butenoligomeren, wobei Butene oligomerisiert, die Butenoligomeren aus dem Oligomerisat abgetrennt, die Butenoligomeren zu um ein Kohlenstoffatom längeren Carbonsäuren umgesetzt und die so erhaltenen Carbonsäuren zu den entsprechenden Vinylestern umgesetzt werden. Butenoligomere sind insbesondere Di-, Tri- und Tetrabutene.
Weiterhin betrifft die Erfindung die Verwendung der Vinylester als Weichmacher oder als Comonomer in Polymerisationsreaktionen.