Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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FMC Corp
Original Assignee
FMC Corp
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Filing date
Publication date
Application filed by FMC CorpfiledCriticalFMC Corp
Priority to ES0306445ApriorityCriticalpatent/ES306445A1/en
Publication of ES306445A1publicationCriticalpatent/ES306445A1/en
Process for obtaining cellulose pulp, of great brilliance, which comprises impregnating cellulose fibers with an aqueous solution containing bisulfite ion and having a pH of 2 to 7 to provide at least about 0.04% of said bisulfite ion on the fibers; contacting the resulting fibers impregnated with bisulfite ion, with 0.01 to 0.5% by weight of the fibers, of an alkali metal borohydride, and allowing the reactants to act on the fibers, to increase the brightness of the fibers. these. (Machine-translation by Google Translate, not legally binding)
ES0306445A1964-11-261964-11-26Procedure for obtaining cellulosula pulp. (Machine-translation by Google Translate, not legally binding)
ExpiredES306445A1
(en)
Procedure to react components ethylenically not saturated with textile fibers in a liquid medium (Machine-translation by Google Translate, not legally binding)