摘要:
A carbonate ester of the formula: ##STR1## where n is an integer of from 0 to 4 and m is an integer of from 8 to 14 and carbonate ester compositions containing at least one of such compounds are disclosed. These compounds or compositions can be added to vinyl chloride polymer compositions to plasticize said compositions.
摘要:
Tertiary-butylphenyl diphenyl phosphate esters in which the nominal molar ratio of tertiary-butyl radicals to phenyl radicals ranges from about 1:5 to about 1:2, the meta-tertiary-butylphenyl content ranges from about 25% to about 100 % and the ortho-tertiary-butylphenyl content is less than about 50% are highly effective plasticizers for vinyl chloride polymer compositions.
摘要:
Meta-alkylphenols are prepared by the isomerization of nonmeta-alkylphenols in the presence of trifluoromethane sulfonic acid. Ortho-isomer-containing alkylphenols are isomerized to increase their meta-isomer content and reduce their ortho-isomer content.
摘要:
A method for decolorizing and stabilizing alkylphenyl esters of phosphoric acid which comprises contacting the esters with an effective amount of a water soluble salt of a reduced form of sulfur for a sufficient length of time to decolorize and stabilize the esters against subsequent color formation.
摘要:
Triarylphosphates are prepared by phosphorylation of alkylphenols without use of phosphorylation catalyst. An improved phosphorylation step includes preheating alkylphenol feedstock to 150.degree. C. and completing reaction at 215.degree. C. or above in the presence of a stoichiometric excess of alkylphenol. The absence of phosphorylation catalyst simplifies distillative purification of reaction product by eliminating the need to withdraw purified product as distillate.
摘要:
Tertiary-butylphenyl diphenyl phosphate esters in which the nominal molar ratio of tertiary-butyl radicals to phenyl radicals ranges from about 1:5 to about 1:2, the meta-tertiary-butylphenyl content ranges from about 25% to about 100% and the ortho-tertiary-butylphenyl content is less than about 50% are highly effective plasticizers for vinyl chloride polymer compositions.
摘要:
A polyphosphorous mixed phosphite-phosphonate polymer flame retardant having an OH number less than one and containing both alkyl phosphite and haloalkyl phosphonate linkages.
摘要:
A process for producing tert-butylphenyl diphenyl phosphate which is stable at low temperature by a process wherein phenol is butylated to produce tert-butylphenol which is isomerized to produce mixed meta and para isomers thereof, and which thereafter is alkylated with isobutylene to produce tert-butylphenol having a C.sub.4 /.phi. ratio of about 0.62. The tert-butylphenol is then phosphorylated to the tert-butylphenyl diphenyl phosphate meta/para mixture with phosphorus oxychloride. The disclosed process provides a tert-butylphenyl diphenyl phosphate which will not freeze or gel at low temperatures.
摘要:
A continuous process for preparing methane sulfonyl chloride by the reaction of methyl mercaptan with chlorine in the presence of an aqueous bath of hydrogen chloride at an elevated temperature.
摘要:
A method for decolorizing and stabilizing alkylphenyl esters of phosphoric acid which comprises the in situ addition of an effective amount of PCl.sub.3 to the POCL.sub.3 reacted with an alkyl phenol so as to produce a decolorized and stabilized phosphate ester.