D - Textiles – Paper – 21 – H
Patent
D - Textiles, Paper
21
H
D21H 25/18 (2006.01)
Patent
CA 2339021
The product is presented in the form of a solution and is composed of carbonated magnesium di-n-propylate, n-propanol, and a hydrofluorocarbon (HFC) diluent selected from 1,1,1,2-tetrafluoroethane (HFC 134a) and 1,1,1,2,3,3,3-heptafluoropropane (HFC 227). The product may be obtained by a procedure which comprises preparing a solution of carbonated magnesium di-n-propylate in n--propanol and diluting said solution by addition of the HFC diluent. The product is suitable for de-acidifying cellulose-type material and preserving objects based on cellulose-type material.
L'invention concerne un produit sous forme soluble et composé dedi-n-propylate de carbonate de magnésium, de n-propanol et d'un diluant hydrofluorocarboné (HFC) sélectionné dans 1,1,1,2-tétrafluoroéthane (HFC 134a) et 1,1,1,2,3,3,3-heptafluoropropane (HFC 227). On peut obtenir le produit au moyen d'un procédé consistant àpréparer une solution de di-n-propylate de carbonate de magnésiumdans du n-propanol et diluer ladite solution par addition du diluant HFC. Le produit se prête à la désacidification de la matière cellulosique et permet de préserver des objets en matière cellulosique.
Fetherstonhaugh & Co.
Universitat Politecnica de Catalunya
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