PRODUCTION OF HYDROPHILIC RESIN

PROBLEM TO BE SOLVED: To produce a hydrophilic resin reduced in the amt. of a water soluble component and excellent in various properties such as water absorbing magnification or the like by suppressing the kneading collapse of a water-containing gel-like polymer at the time of the crushing thereof....

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Bibliographische Detailangaben
Hauptverfasser:	YANO AKITO, HATSUDA TAKUMI, MIYAKE KOJI
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON CRUSHING, PULVERISING, OR DISINTEGRATING CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS MAKING GRANULES OR PREFORMS METALLURGY MILLING GRAIN ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PREPARATION OR PRETREATMENT OF THE MATERIAL TO BESHAPED PREPARATORY TREATMENT OF GRAIN FOR MILLING RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIALCONTAINING PLASTICS THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To produce a hydrophilic resin reduced in the amt. of a water soluble component and excellent in various properties such as water absorbing magnification or the like by suppressing the kneading collapse of a water-containing gel-like polymer at the time of the crushing thereof. SOLUTION: When a water-containing gel-like polymer 21 is crushed, it is held between a pair of spiral rotary blades 6a, 7a provided in mutually opposed relationship and having difference feed speeds. In this case, the temp. of the water-containing gel-like polymer at the time of crushing is set to 40-100 deg.C, pref., 50-80 deg.C.