PROCEDE POUR PREPARER DES POUDRES HYGROSCOPIQUES ET PROCEDE POUR TRAITER DES MATIERES POREUSES AU MOYEN DE CES

1310865 Comminuting PROCTOR & SCHWARTZ Inc 19 April 1971 [12 March 1970] 23809/71 Heading B2A [Also in Division D1] An hygroscopic powder is obtained by (i) reducing the moisture content of the hygroscopic constituents e.g. urea, diammonium phosphate, ammonium chloride, ammonium sulpphate or amm...

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Bibliographic Details
Main Author W.L. KUECHLER
Format Patent
LanguageFrench
Published 02.08.1971
Subjects
FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
LAUNDERING
TEXTILES
TREATMENT OF TEXTILES OR THE LIKE
TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS,FABRICS, FEATHERS, OR FIBROUS GOODS MADE FROM SUCH MATERIALS
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Summary:1310865 Comminuting PROCTOR & SCHWARTZ Inc 19 April 1971 [12 March 1970] 23809/71 Heading B2A [Also in Division D1] An hygroscopic powder is obtained by (i) reducing the moisture content of the hygroscopic constituents e.g. urea, diammonium phosphate, ammonium chloride, ammonium sulpphate or ammonium sulphamate, to below 10 per cent and (ii) pulverizing said constituents in circulating air at 150-250‹F, a free flowing anticaking agent, e.g. precipitated silica being added before or after the pulverizing step.
Bibliography:Application Number: BE19710764224