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Michelin Recherche et Technique SA Switzerland
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Michelin Recherche et Technique SA Switzerland
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Priority to ES546464ApriorityCriticalpatent/ES8700291A1/en
Publication of ES8700291A1publicationCriticalpatent/ES8700291A1/en
Publication of ES546464A0publicationCriticalpatent/ES546464A0/en
Separation, Recovery Or Treatment Of Waste Materials Containing Plastics
(AREA)
Abstract
Composition M based on a cellulose ester with formate groups, this composition being an anisotropic solution containing: a) the cellulose ester, b) formic acid, and c) at least one phosphoric acid. The invention also relates to a process for obtaining this composition by dissolving the cellulose. The invention also relates to a process for obtaining articles by the shaping of this composition, with the possibility of regenerating cellulose from these articles. The invention also relates to a cellulose fibre in which the level of substitution of cellulose by formate groups is at least 2%, or zero or less than 2%. Figure 4
FOERENING, SOM BASERAR SIG PAO AOTMINSTONE ETT CELLULOSA-ESTERGRUPP INNEHAOLLANDE DERIVAT, FOERFARANDE FOER ERHAOLLANDE AV FOERENINGEN OCH CELLULOSA-ESTERGRUPPER INNEHAOLLANDE FIBER.