GELLED HYDROCARBONS FOR OILFIELD PROCESSES, PHOSPHATE ESTER COMPOUNDS USEFUL IN GELLATION OF HYDROCARBONS AND METHODS FOR PRODUCTION AND USE THEREOF
申请人:GHESNER IOAN
公开号:US20110046408A1
公开(公告)日:2011-02-24
Phosphate esters useful for gelling hydrocarbons in combination with a metal source are disclosed along with methods of preparation of the phosphate esters. Fouling in oil refinery towers has been attributed due to distillation of impurities present in phosphate esters used to gel hydrocarbons for oil well fracturing. The improved method of preparation of the phosphate ester results in a product that substantially reduces or eliminates volatile phosphorus, which is phosphorus impurities that distill up to 250° C., and increases the high temperature viscosity of the hydrocarbon gels formed using the phosphate esters.
Subphthalocyanine derivative having phosphorus derivative as axially substituted group, method for manufacturing the same and optical film using the same
申请人:Mori Tomohiro
公开号:US20100036134A1
公开(公告)日:2010-02-11
A novel subphthalocyanine derivative having a phosphorus derivative-substituted group as an axially substituted group which has an excellent solubility, a method for producing the same and an optical film containing the same, are provided without impairing excellent properties peculiar to the original subphthalocyanines. The novel subphthalocyanine derivative is represented by the following chemical formula (1), and it is applicable for optical films.
A traction drive fluid comprising a naphthenic compound represented by the formula
1
wherein R
1
is an alkyl group, which may have a naphthene ring, having 1 to 8 carbon atoms, R
2
through R
4
are each independently hydrogen or an alkyl group, which may have a naphthene ring, having 1 to 8 carbon atoms, and A is a naphthenic hydrocarbon group, a saturated polycyclic hydrocarbon group, a naphthenic ester group, and a naphthenic carbonate group.
CHROMIUM-BASED CATALYST COMPOSITION FOR PRODUCING CONJUGATED DIENE POLYMERS
申请人:Bridgestone Corp.
公开号:US20020115558A1
公开(公告)日:2002-08-22
A catalyst composition that is the combination of or the reaction product of ingredients comprising (a) a chromium-containing compound; (b) an organomagnesium compound; and (c) a silyl phosphonate. also, a process for forming conjugated diene polymers by using the catalyst composition.
Powdered metal composite material and starting material and method for producing such a composite material
申请人:——
公开号:US20020122942A1
公开(公告)日:2002-09-05
In order to state a powdered metal composite material having a high specific electrical resistance and having good mechanical strength, very good resistance to temperature and to fuel, and a starting material and a method for the economical production of such a composite material, a powdered metal composite material having a high specific electrical resistance, which contains at least two oxides encapsulating the powdered metal particles, the oxides forming at least one common phase, and a starting material containing a powdered metal, which contains at least two antitack agents having oxidic pyrolysis residue and oxidic fine powder, and a method for producing such a composite material are made available, which relate to a starting material of the kind named, in which the starting material is pressed to form molded articles, in which the antitack agents are pyrolyzed in a nonreducing atmosphere to form oxides, and the oxides then present are made to react with one another to form at least one common phase.