PRODUCTION METHOD FOR POWDERED HYDROPHILIC MODIFIED POLYROTAXANE

    公开(公告)号:CA2829862A1

    公开(公告)日:2012-09-20

    申请号:CA2829862

    申请日:2011-12-05

    Abstract: The present invention aims to provide a production method for a powdered hydrophilic modified polyrotaxane, said production method enabling the use of a commercially advantageous method to obtain a powdered hydrophilic modified polyrotaxane exhibiting excellent storage stability. The production method for a powdered hydrophilic modified polyrotaxane composition comprises: a hydrophilic modification step in which a hydrophilic modified polyrotaxane solution is obtained by using a hydrophilic modification group to modify all or a part of a hydroxyl group derived from a cyclodextrin in a polyrotaxane having the cyclodextrin, a polyethylene glycol threaded through the opening in the cyclodextrin and enclosed thereby, and stopper groups that are arranged at both ends of the polyethylene glycol and that prevent the detachment of the cyclodextrin; and a drying step in which the prepared hydrophilic modified polyrotaxane solution is sprayed and then dried in a heated air stream.

    POLYROTAXANES AND MATERIAL HAVING POLYROTAXANE, CROSSLINKED POLYROTAXANES AND MATERIAL HAVING THE CROSSLINKED POLYROTAXANE, AND PROCESSES FOR PRODUCING THESE

    公开(公告)号:CA2678538A1

    公开(公告)日:2008-09-12

    申请号:CA2678538

    申请日:2008-03-05

    Abstract: 1) A polyrotaxane which has enhanced solubility and is soluble in various solvents, 2) a polyrotaxane which is reversibly responsive to an external s timulus, 3) a chemically crosslinked polyrotaxane which has a high Young's m odulus and a high elongation and has a high transmittance, and/or 4) a chemi cally crosslinked polyrotaxane which is reversibly responsive to an external stimulus; and/or a material containing any of these; and/or processes for p roducing these. The polyrotaxanes each comprises: a pseudo-polyrotaxane havi ng a structure constituted of cyclic molecules and a linear molecule with wh ich the holes of the cyclic molecules are pierced to form a clathrate; and a blocking group disposed at each end of the pseudo-polyrotaxane so as to pre vent the cyclic molecules from leaving. The cyclic molecules have a function al group represented by the following formula (I) and at least one functiona l group selected among functional groups represented by the following formul ae (II-1) to (II-6).

    Composición de resina de poliéster y moldeo

    公开(公告)号:ES2722049T3

    公开(公告)日:2019-08-07

    申请号:ES15835800

    申请日:2015-08-20

    Abstract: Una composición de resina de poliéster que comprende: una resina de poliéster; y un polirotaxano que tiene una molécula cíclica, una molécula lineal que pasa a través de una cavidad de la molécula cíclica por ensartado y grupos de protección terminal que protegen ambos extremos de la molécula lineal, en donde la resina de poliéster son poliésteres de ácido >-hidroxicarboxílico, una cadena de policaprolactona está introducida en la molécula cíclica y la cadena de policaprolactona tiene un grupo carboxilo como sustituyente en su terminal.

    Polyol-Zusammensetzung zur Herstellung flexibler Polyurethanschäume und flexible Polyurethanschäume

    公开(公告)号:DE102016206008A1

    公开(公告)日:2016-10-20

    申请号:DE102016206008

    申请日:2016-04-11

    Abstract: Ein Polyrotaxan (13) ist einer Polyol-Zusammensetzung beigemischt, die die Zugspannung eines flexiblen Polyurethanschaums (10) verringern kann. Auf ein Urethanpolster wirken eine vertikale Druckspannung bedingt durch das Gewicht eines sitzenden Nutzers, und eine Zugspannung bedingt durch den Eintrag seitlicher Vibrationen. Durch Reduktion der Zugspannung des flexiblen Polyurethanschaums (10) kann aber die Richtung (Neigungswinkel) der aus der Druckspannung und der Zugspannung resultierenden Kraft an die vertikale Richtung angenähert werden. Dadurch kann der Neigungswinkel der Hüfte (Ischium) des Nutzers auf dem Urethanpolster bezüglich der vertikalen Richtung, der durch den Eintrag seitlicher Vibrationen bedingt ist, verringert werden, so dass die Empfindung des Schwankens des Urethanpolsters verringert werden kann.

    Método para la producción de un pseudopolirrotaxano

    公开(公告)号:ES2552210T3

    公开(公告)日:2015-11-26

    申请号:ES11848923

    申请日:2011-12-05

    Abstract: Un método para la producción de un pseudopolirrotaxano, que comprende: una etapa de inclusión que consiste en mezclar un polietilenglicol que tiene un grupo carboxilo en cada extremo de la molécula lineal y una ciclodextrina en un medio acuoso para formar una dispersión acuosa de pseudopolirrotaxano que contiene partículas de pseudopolirrotaxano en las que el polietilenglicol se encuentra incluido en las cavidades de las moléculas de ciclodextrina de manera ensartada; y una etapa de secado que consiste en secar la dispersión acuosa de pseudopolirrotaxano producida en la etapa de inclusión para obtener el pseudopolirrotaxano, en la etapa de secado, pulverizándose y secándose la dispersión acuosa de pseudopolirrotaxano en una corriente de gas caliente; en el que la temperatura de la corriente de gas caliente en la etapa de secado es 70 a 200 ºC.

    METHOD FOR PRODUCING PSEUDOPOLYROTAXANE AQUEOUS DISPERSION

    公开(公告)号:CA2821905A1

    公开(公告)日:2012-06-21

    申请号:CA2821905

    申请日:2011-12-05

    Abstract: The purpose of the present invention is to provide a method for producing a pseudopolyrotaxane aqueous dispersion by which it is possible to produce a pseudopolyrotaxane aqueous medium that has excellent pseudopolyrotaxane particle dispersion stability and favorable fluidity, by using an industrially advantageous method. The present invention is a method for producing a pseudopolyrotaxane aqueous dispersion containing pseudopolyrotaxane particles in which polyethylene glycol is included in the openings of cyclodextrin molecules in a skewered manner, the method for producing the pseudopolyrotaxane aqueous dispersion having: a mixing step for dissolving the polyethylene glycol and the cyclodextrin in an aqueous medium, and preparing a mixed solution; and a cooling step for continuously or intermittently cooling the mixed solution while causing the same to flow, and causing the pseudopolyrotaxane particles to precipitate.

    METHOD FOR PRODUCING PSEUDOPOLYROTAXANE

    公开(公告)号:CA2821887A1

    公开(公告)日:2012-06-21

    申请号:CA2821887

    申请日:2011-12-05

    Abstract: The purpose of the present invention is to provide a method for producing a pseudopolyrotaxane by which it is possible to produce powdered pseudopolyrotaxane that has a high inclusion rate by using an industrially advantageous method. The present invention is a method for producing a pseudopolyrotaxane having: an inclusion step for mixing a polyethylene glycol and a cyclodextrin in an aqueous medium, and obtaining an aqueous dispersion containing pseudopolyrotaxane particles in which the polyethylene glycol is included in the openings of the cyclodextrin molecules in a skewered manner; and a drying step for obtaining the pseudopolyrotaxane by drying the pseudopolyrotaxane aqueous dispersion obtained in the inclusion step. The method for producing the pseudopolyrotaxane is characterized in that during the drying step, the pseudopolyrotaxane aqueous dispersion is sprayed and dried in a heated air current.

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