BISPHENOL COMPOSITION CONTAINING AROMATIC ALCOHOL SULFONATE AND METHOD FOR PRODUCING SAME, POLYCARBONATE RESIN AND METHOD FOR PRODUCING SAME, AND BISPHENOL PRODUCTION METHOD
申请人:MITSUBISHI CHEMICAL CORPORATION
公开号:US20200190004A1
公开(公告)日:2020-06-18
A bisphenol composition including a specific amount of aromatic alcohol sulfonate, and a simple method of producing it are provided. Also provided is a method of producing a polycarbonate resin in which, by using the bisphenol composition including a specific amount of aromatic alcohol sulfonate, melt polymerization reaction can be efficiently allowed to proceed to produce a polycarbonate resin having an excellent color tone. A bisphenol composition including an aromatic alcohol sulfonate at not less than 0.1 ppb by mass with respect to a bisphenol. A method of producing a bisphenol composition, including reacting a ketone or an aldehyde with an aromatic alcohol in the presence of sulfuric acid to produce a bisphenol composition. A method of producing a polycarbonate resin, including producing a polycarbonate resin using the bisphenol composition. A polycarbonate resin including a specific amount of aromatic alcohol sulfonate.
Process for the preparation of aryl carboxylate esters
申请人:Eastman Chemical Company
公开号:US06448430B1
公开(公告)日:2002-09-10
Disclosed is a process for the preparation of aryl carboxylate esters by the reaction of a phenol reactant with a carboxylic acid in the presence of trifluoroacetic acid (TFA) and trifluoroacetic anhydride (TFAA).
The present invention relates to esterified glycerylated alkyl glycoside and to a process for making same. The esterified glycerylated alkyl glycoside have one or more polyglyceryl moieties and one or more acyl moieties, wherein all of the one or more acyl moieties are situated on the one or more polyglyceryl moieties via an ester linkage. These compounds have been found to be useful as emulsifiers and coemulsifiers in the formulation of a phase stable emulsions suitable for use in personal care, home care, industrial and institutional, and health care applications.
USE OF DICYCLOHEXYLMETHANOL DERIVATIVES HAVING ANTIMICROBIAL PROPERTIES
申请人:MERCK PATENT GmbH
公开号:US20150118172A1
公开(公告)日:2015-04-30
The present invention relates to the use of at least one dicyclohexylmethanol derivative of the formula (I) as antimicrobial active compound or as anti-acne, antidandruff, deodorant or antiperspirant active compound, to preparations comprising these compounds, and to specific dicyclohexylmethanol derivatives and to a process for the preparation thereof.
Process for the preparation of acyloxybenzenesulfonates
申请人:Clariant International, Ltd.
公开号:US20040116725A1
公开(公告)日:2004-06-17
The invention relates to a process for the preparation of acyloxybenzenesulfonates starting from carbonyl halides and salts of phenolsulfonic acid which have a low water content. Surprisingly, it was discovered that acyloxybenzenesulfonates can be prepared in high yields and good grades, irrespective of the grade or reactivity of the phenolsulfonic acid derivative, if the reaction of the phenolsulfonic acid with an alkanecarboxylic acid derivative is carried out in an aliphatic or aromatic solvent in the presence of 0.5 to 25% by weight of a polyglycol ether.