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Showing papers on "Triphenyl phosphate published in 1968"


Patent
04 Dec 1968
TL;DR: In this paper, the authors describe the manufacture of polyethylene terephthalate from ethylene glycol and Terephthalic acid using a mixture of manganous salt and cobaltous salt.
Abstract: 1,135,233 Poly (glycol terephthalates) COURTAULDS Ltd 7 April, 1966 [12 April, 1965; 3 Dec, 1965], Nos 15358/65 and 51356/65 Heading C3R In the manufacture of fibre-forming polyesters by (a) effecting an esterification or ester-interchange reaction between a polymethylene glycol containing 2 to 10 carbon atoms and terephthalic acid or an ester thereof and (b) polycondensing the resulting polymethylene glycol terephthalate or low polymer thereof, the esterification or ester-interchange catalyst used is a mixture of a manganous salt and a cobaltous salt, preferably a mixture of manganous acetate and cobaltous acetate The same catalyst mixture may also serve as the polycondensation catalyst, but preferably an antimony compound (eg antimony oxide) is added before polycondensation A stabilizer (eg triphenyl phosphite or triphenyl phosphate) may be included in the polycondensation stage Examples describe the manufacture of polyethylene terephthalate from ethylene glycol and terephthalic acid

4 citations


Patent
13 Mar 1968
TL;DR: In this article, the authors describe a process for the generation of thermographic images by exposing to heat a material comprising a support coated with a compound having supercooling properties so that a liquid latent image is formed and this image is developed by applying a powder developer.
Abstract: 1,106,199. Thermographic processes. MATSUSHITA ELECTRIC INDUSTRIAL CO. Ltd. Dec.21, 1965, No.54185/65. Heading G2C. Thermographic images are produced by imagewise exposing to heat a material comprising a support coated with a compound having supercooling properties so that a liquid latent image is formed and this image is developed by applying a powder developer, the super-coolable material including triphenyl phosphate. Specified materials are triphenyl phosphate alone or admixed with p-tricresyl phosphate, diphenylamine, p-aminodiphenylamine, m-phenylene diamine, acetanilide or o-hydroxy diphenyl. These super-coolable materials may be coated directly on a support or disposed in a polymeric binder before coating. After exposure and development with a developer of the type used in electro-photography, the image may be fixed by heating.

2 citations