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41.发明专利
公开(公告)号：JP2002282661A
公开(公告)日：2002-10-02
申请号：JP2001092242
申请日：2001-03-28
发明人： CHIKAMI NOZOMI
摘要： PROBLEM TO BE SOLVED: To provide a method for continuously mixing chemical stock solutions capable of stably and homogeneously mixing each chemical stock solution without agglomerating a SBR latex or generating an undissolved lump of starch flour even when each of chemical stock solutions of a microcapsule dispersion using a polyamine as a reacting agent, a SBR latex dispersion and a starch dispersion are continuously mixed. SOLUTION: The method comprises at first sending the microcapsule dispersion from a microcapsule dispersion storing tank 12 to a mixing line piping 22 and adding in advance an aqueous alkaline solution from an aqueous alkaline solution storing tank 14 to the mixing line piping 22, and then adding thereto the SBR latex dispersion and the starch dispersion respectively from a SBR latex dispersion storing tank 16 and a starch dispersion storing tank 18.
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公开(公告)号：JP2002102680A
公开(公告)日：2002-04-09
申请号：JP2000298815
申请日：2000-09-29
发明人： IGARI YUTAKA , OKAMOTO TSUNEO , HORI YUJI
IPC分类号： B01D29/11 , A01N25/28 , A01N37/34 , A01N57/16 , B01D29/50 , B01D29/66 , B01D29/90 , B01D29/94 , B01J2/04 , B01J13/20 , C09B67/08 , C10M171/06
摘要： PROBLEM TO BE SOLVED: To obtain microcapsule powder made of the aggregates of microcapsule particles in which microcapsules in which a hydrophobic core substance formed in an aqueous medium is coated with a thermosetting resin layer are separated from the medium as an inactive component and dried without the destruction and flocculation of a coating resin layer while contents release speed control or a lasting release effect, a chemical poisoning preventive effect by the poisonous contents, etc., of a microcapsule slurry. SOLUTION: The microcapsule powder is obtained by a method having a filtration process in which the aqueous slurry of the microcapsules in which the hydrophobic core substance obtained through a microcapsulation process is coated with the thermosetting resin layer is filtered to recover the microcapsule particles, a washing process in which the filtered microcapsule particles are washed with water to obtain microcapsule slurry, and a drying process in which the microcapsule slurry is supplied with air to a two-fluid nozzle to be dried, and the dry microcapsule particles are recovered.
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公开(公告)号：JP3273604B2
公开(公告)日：2002-04-08
申请号：JP2000317429
申请日：2000-10-18
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公开(公告)号：JP2000225332A
公开(公告)日：2000-08-15
申请号：JP30623799
申请日：1999-10-28
申请人： SEIWA KASEI KK
发明人： YOSHIOKA MASATO , UEDA YUKA , SEGAWA AKIHIRO
摘要： PROBLEM TO BE SOLVED: To minimize the quantity of a core substance which was not encapsulated in capsules and to reduce the exudation of the core substance from the capsules in microcapsules having wall membranes of a specified organopolysiloxane by adding a compound to the core substance. SOLUTION: A membrane wall is formed from an organopolysiloxane synthesized by polycondensing one or several compounds selected from the group consisting of compounds given by the formula: RnSi(OH)mY(4-m-n) wherein m is an integer of 1-4; n is an integer of 0-3; m+n
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公开(公告)号：JP2000160496A
公开(公告)日：2000-06-13
申请号：JP18006599
申请日：1999-06-25
申请人： NIPPON ZEON CO
发明人： SHI SAE
摘要： PROBLEM TO BE SOLVED: To obtain a complex loading material having excellent optical characteristics such as intensity characteristics in internal addition to paper, whiteness and opacity by preparing an aqueous dispersion of complex hollow polymer particle to which a polymer electrolyte is connected and which has a positive zeta potential. SOLUTION: A polymer electrolyte such as an amphoteric polyacrylamide in an amount of >=0.1 pt.wt., preferably 0.5-50 pts.wt., more preferably 1-20 pts.wt. is connected to 100 pts.wt. of a hollow polymer particle composed of a polystyrene-based polymer and/or a poly(meth)acrylate-based polymer to give a complex hollow polymer particle. An aqueous dispersion of the complex hollow polymer particle having a positive zeta potential is prepared to give a complex loading material for paper. The complex loading material for paper is internally added to a pulp slurry to make a paper.
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