摘要:
DESCRIBED ARE DIESTERS OF DIOLS OF POLY(OXYALKYLENE) DIOLS AND TWO ACID PEROXYESTERS OF A MONOHYDRIC ALCOHOL AND CARBONIC ACID WHEREIN THE CARBONYL GROUPS OF THE PEROXYESTERS ARE ESTERIFIED WITH THE DIOL. THESE COMPOUNDS ARE REPRESENTED BY THE STRUCTURE R1-O-O-COO-R2-OOC-O-O-R3
R1 AND R3 ARE ORGANIC RADICALS HAVING UP TO 10 CARBON ATOMS AND R2 IS THE DIVALENT RADICAL OF A DIOL. METHOD OF THEIR PREPARATIONS INVOLVE REACTION OF A BISCHLOROFORMATE OF THE DIOL WITH AN ORAGNIC HYDROPEROXIDE. THESE COMPOUNDS AND COMPOSITIONS THEREOF WITH AN ORGANIC HYDROPEROXIDE AND/OR DIPEROXIDE ARE DESCRIBED. THE COMPOUNDS AND COMPOSITIONS ARE USEFUL FOR POLYMERIZING OLEFINICALLY UNSATURATED MONOMERS.
摘要:
3-METHYL-3-TERITARYBUTYLPEROXY BUTYRIC ACID, SALTS AND ESTERS THEREOF ITS PREPARATION AND USE AS A POLYMERIZATION INITIATOR FOR ETHYLENICALLY UNSATURATED MONOMERS IS DESCRIBED.
摘要:
FLUORIN-CONTAINING ETHYLENICALLY UNSATURATED MONOMERS, E.G., VINYLIDENE FLUORIDE, ARE POLYMERIZED IN AN AQUEOUS MEDIUM WITH AN INITIATING AMOUNT OF BETA-HYDROXYALKYL TERTIARY BUTYL PEROXIDE.
摘要:
Aqueous hydrogen peroxide solutions containing organic impurities, particularly organic esters, are purified by treatment with acid, e.g., phosphoric acid, followed by fractional distillation.
摘要:
DESCRIBED IS THE CATALYTIC HYDROFLUORINATION OF ACETYLENICS IN A LIQUID ORGANIC MEDIUM MADE UP OF FROM 3 TO 15 MOLES HYDROGEN FLUORIDE PER MOLE OF ORGANIC BASE SUCH AS N,N-DIMETHYLANILINE WHILE EVOLVING OLEFIN MONOFLUORIDE (THE EQUIMOLAR HYDROFLUORINATION PRODUCT) PRODUCT FROM THE LIQUID. EXEMPLARY CONDITIONS FOR MAINTAINING THIS REACTION MEDIA COMPOSITION WHILE EVOLVING THE PRODUCT INCLUDE 50*C. TO 100*C. AND 5 TO 100 P.S.I.G.
摘要:
The novel rubber compound and tire tread made therefrom include a silica-filled unsaturated rubber compound and a reactive olefinic coupling agent such as 5-triethoxysilyl norbornene. The coupling agent is a compound which forms a bond or connection between the rubber polymer and the silica.