Synthesis of Acid-ResistantP-Quinone Monoketals and Thermally Stable 4,4-Dialkoxycyclohexa-2,5-Dien-1-OLS
摘要:
Preparation and high resistance to acid hydrolysis of sterically hindered p-quinone monoketals 1a, 1b and 1c are described. Thermal stability of ketal alcohols 2a and 2b derived from 1a and 1c, respectively, is also mentioned.
Synthesis of Acid-ResistantP-Quinone Monoketals and Thermally Stable 4,4-Dialkoxycyclohexa-2,5-Dien-1-OLS
摘要:
Preparation and high resistance to acid hydrolysis of sterically hindered p-quinone monoketals 1a, 1b and 1c are described. Thermal stability of ketal alcohols 2a and 2b derived from 1a and 1c, respectively, is also mentioned.
Dibenzodioxaphosphepin- und -dioxaphosphocin-Verarbeitungsstabilisatoren
申请人:CIBA-GEIGY AG
公开号:EP0108714A1
公开(公告)日:1984-05-16
Sterisch gehinderte Phosphite der Formel
die man durch Umsetzung der entsprechenden Phosphor-und sterisch gehinderten Phenolverbindungen herstellt, sind als Stabilisatoren für organische Polymere und Schmieröle geeignet.
Aminosubstituierte Dibenzodioxaphosphepine und Dioxaphosphocine
申请人:CIBA-GEIGY AG
公开号:EP0110820A1
公开(公告)日:1984-06-13
Sterisch gehinderte, aminosubstituierte Phosphite der Formel
die man durch Umsetzung der entsprechenden Phosphor- und Phenolverbindungen herstellt, sind als Stabilisatoren für organische Polymere und Schmieröle geeignet.
A nonwoven fabric repellent to body fluids and having reduced odor on sterilization by irradiation or steam is made by bonding nonwoven fibers with a latex, forming said nonwoven fabric, and sterilizing said fabric, said latex is prepared by polymerizing, in the presence of 0.1 to 2 weight parts of a free radical initiator and a sufficient amount of a nonionic or anionic emulsifier, 65 to 85 weight parts of a soft hydrophobic monomer having Tg of -80°C to -20°C, 10 to 30 weight parts of a hard hydrophobic monomer having Tg of +40°C to +120°C, 0.1 to 5 weight parts of an unsaturated carboxylic acid containing 3 to 6 carbon atoms, and 0.1 to 5 weight parts of N-alkylol acrylamide or methacrylamide containing 1 to 10 carbon atoms, said latex has post-added and admixed therein 0.01 to 5 weight parts of an odor inhibition agent selected from amine-type antioxidants and hindered phenols that function to reduce odor of said fabric on sterilization thereof.
Process for making ring-halogenated styrenes and their use
申请人:YISSUM RESEARCH DEVELOPMENT COMPANY OF THE HEBREW UNIVERSITY OF JERUSALEM
公开号:EP0159915A2
公开(公告)日:1985-10-30
The invention provides a process for preparing a ring-halogenated styrene monomer comprising hearing an a-bromoethyl halobenzene at a temperature in the range of about 100-250°C in the presence of a polymerization inhibitor whereby a corresponding ring-halogenated styrene and hydrobromic acid are formed.
Lubricating oil composition for food processing machinery
申请人:NIPPON OIL CO. LTD.
公开号:EP0572198A1
公开(公告)日:1993-12-01
A lubricating oil composition comprises a mixture of a first ester of medium-chain saturated fatty acid and glicerol and a second ester of sucrose and carboxylic acid. The composition has improved physical characteristics including high hygienic safety, increased oxydative stability, enhanced lubricating performance, adequate viscosity and other properties required for lubricating particularly food processing machinery and implements.