Optical waveguides – With optical coupler – Particular coupling structure
Patent
1979-08-07
1982-02-23
Davis, Curtis R.
Optical waveguides
With optical coupler
Particular coupling structure
568607, C07C 266, C07C 270
Patent
active
043169970
ABSTRACT:
This invention relates to conversion processes which take place in the presence of solid acid catalysts, e.g., hydrocarbon conversion processes. More specifically, this invention relates to a liquid phase process for the alkylation of aromatic hydrocarbons, with olefin, e.g., ethylene, propylene, etc., in the presence of a polyfluorosulfonic acid catalyst.
REFERENCES:
patent: 3708553 (1973-01-01), Olah
patent: 3882093 (1975-05-01), Cavanaugh et al.
patent: 3976704 (1976-08-01), Vaughan
patent: 4041090 (1977-08-01), McClure
Kapura et al., "Sulfonated Polymers as Alkylation Catalysts", Industrial Engineer Chemistry Product Research Development, vol. 12, No. 1, pp. 62-66 (1973).
Grot et al., paper "Perfluorinated Ion Exchange Membranes", presented at 141st Electrochemical Society Mtg., Houston, Tex., May 1972.
Davis Curtis R.
Tonkin Charles J.
Varen Technology
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