公开(公告)号：JPH03284337A

公开(公告)日：1991-12-16

申请号：JP8659990

申请日：1990-03-30

Applicant: AGENCY IND SCIENCE TECHN

Inventor： MIZOGUCHI KENSAKU ,  IWATSUBO TAKASHI ,  AISAKA NOBORU

IPC: B01D71/74

Abstract: PURPOSE:To obtain a polymer film useful as a separating membrane with sericin discarded until now by spreading an aq. sericin soln. contg. specified cross- linking agents on a glass plate and forming a crosslinked thin film. CONSTITUTION:An aq. hydrochloric acid soln., an aq. soln. of a crosslinking agent (A) such as formaldehyde and an aq. soln. of thermallyreactive water-soluble urethane resin as a cross-linking agent (B) are added to an ag. sericin soln. and they are mixed to obtain an aq. sericin soln. for spreading. This sericin soln. is spread on a smooth plate such as a glass plate at room temp. and allowed to stand at room temp. to carry out cross-linking with the cross-linking agent A. The resulting film is treated with hot air at about 100-150 deg.C to carry out cross-linking with the cross-linking agent B. A cross-linked thin film of sericin is formed and utilized as a separating membrane for an aq. soln. of water-soluble org. matter (water-alcohol). At this time, the film is well washed with water, held on a porous support and used.

公开(公告)号：JPS6458303A

公开(公告)日：1989-03-06

申请号：JP18320688

申请日：1988-07-22

Applicant: AGENCY IND SCIENCE TECHN

Inventor： MIZOGUCHI KENSAKU ,  ITO SHOJI ,  YAMANAKA TADAMORI

IPC: C08J7/16 ,  B01D71/12 ,  B01D71/78 ,  C08F251/00 ,  C08F251/02

Abstract: PURPOSE:To obtain a temperature sensitive permeable membrane for separating substance which is capable of controlling permeation of substance by temp. by subjecting N-isopropylacrylamide to graft polymerization on the single surface of a cellulose membrane and forming the temperature sensitive film. CONSTITUTION:The middle of a reactor 1 is partitioned with a cellulose membrane and both an N-isopropylacrylamide aq. soln. and ammonium ceric nitrate (polymerization initiator) are introduced into a cell 2 and only the N- isopropylacrylamide aq. soln. is introduced into a cell 3 and the systems are held at constant temp. by circulating hot water 10, 11 and while sufficiently agitating the insides of the cells, N-isopropylacrylamide is subjected to graft polymerization on the cellulose membrane from the cell 2 side under the nitrogen atmosphere. After the reaction has been finished, the produced graft cellulose membrane is sufficiently washed with water. By such a way, the permeable membrane for separating substance which is capable of controlling permeation characteristics by temp. and consists of a temperature sensitive film material is obtained.

公开(公告)号：JPS63295613A

公开(公告)日：1988-12-02

申请号：JP13101587

申请日：1987-05-27

Applicant: AGENCY IND SCIENCE TECHN

Inventor： ITO SHOJI ,  FUJISHIGE NORINAGA ,  MIZOGUCHI KENSAKU ,  SUDA MASAO

IPC: C08F120/58 ,  C08F20/52 ,  C08L33/24 ,  C08L33/26 ,  C09K3/00

Abstract: PURPOSE:To obtain a thermally reversible hydrophilic/hydrophobic polymeric compound which has a prescribed mol.wt. and is suitable as a light shielding substance for a green house, by subjecting N-1-methyl-2-methoxyethyl(meth) acrylamide to radical polymerization. CONSTITUTION:The aimed thermally reversible hydrophilic/hydrophobic polymeric compound which comprises repeating units of formula II and has a mol.wt. corresponding to a limited viscosity number of 0.01-6 in a tetrahydrofuran solution at 27 deg.C is produced by subjecting a vinyl compound of formula I (wherein R is H or methyl) to radical polymerization. Although this compound is hydrophilic at ordinary temperatures, it becomes insoluble in water reversibly by heating. The compound of formula I can be produced by reacting, for example, (meth)acryloyl chloride with 2-amino-1-methoxypropane and triethylamine in a solvent.

公开(公告)号：JPS63179877A

公开(公告)日：1988-07-23

申请号：JP961787

申请日：1987-01-19

Applicant: AGENCY IND SCIENCE TECHN

Inventor： ITO SHOJI ,  MIZOGUCHI KENSAKU ,  SUDA MASAO

IPC: C07D491/113 ,  C07D211/00 ,  C07D317/00 ,  C08F20/52 ,  C08F20/58

Abstract: NEW MATERIAL:8-Acryloyl-1,4-dioxa-8-aza-spiro[4,5]decane expressed by formula I. USE:With a transition temperature, utilizable as, e.g. light shielding substances for greenhouses, chemical laboratories, radioisotope laboratories, etc., temperature sensors, adsorbents for surfactants, as well as toys, interiors, printing agents, displays, separation membranes, mechanochemical element materials, etc., and useful as a raw material monomer for synthesizing heat reversible polyacrylamide derivatives, reversibly soluble in water at low temperatures and insoluble in water within high temperature regions. PREPARATION:For example, as shown in the reaction formula, acryloyl chloride is reacted with 1,4-dioxa-8-azabicyclo[4,5]decane and triethylamine in a solvent, preferably at 0-10 deg.C to afford the aimed compound expressed by formula I.

公开(公告)号：JPS63117016A

公开(公告)日：1988-05-21

申请号：JP26293486

申请日：1986-11-05

Applicant: AGENCY IND SCIENCE TECHN

Inventor： ITO SHOJI ,  MIZOGUCHI KENSAKU ,  FUJISHIGE NORINAGA ,  SUDA MASAO

IPC: C08F2/06 ,  C08F2/04 ,  C08F20/00 ,  C08F20/52 ,  C08F20/56 ,  C08F120/56

Abstract: PURPOSE:To obtain the title high-MW thermoreversibly hydrophilic and hydrophobic polymer excellent in strength and capable of being insolubilized in water when warmed, by radical-polymerizing N-isopropylacrylamide in a benzene solvent at a specified temperature. CONSTITUTION:N-Isopropylacrylamide is dissolved in a benzene solvent to form a solution of a concentration of 1-80wt% and radical-polymerized at 5-40 deg.C, preferably, 20-30 deg.C in the presence of, optionally, 0.001-5wt%, based on the vinyl compound, polymerization initiator (e.g., azobisisobutyronitrile) to give the title polymer which is poly(N-isopropylacrylamide) having an intrinsic viscosity >=1.00 (in tetrahydrofuran at 27 deg.C). This polymer is a thermoreversibly hydrophilic and hydrophobic polymer which is insolubilized in water when warmed and is useful for light-screening bodies, temperature sensors, adsorbents, toys, interiors, separative membranes, etc.

公开(公告)号：JPS62210008A

公开(公告)日：1987-09-16

申请号：JP5181786

申请日：1986-03-10

Applicant: AGENCY IND SCIENCE TECHN

Inventor： MASUOKA TOSHIO ,  MIZOGUCHI KENSAKU ,  HIRASA OKIHIKO ,  SUDA MASAO

IPC: B01D67/00 ,  B01D71/32

Abstract: PURPOSE:To obtain the title liq. separation membrane having high strength and exhibiting permselectivity to ethanol by forming a hydrophobic plasma- polymerized membrane on the surface of a polymeric porous membrane substrate. CONSTITUTION:A membrane having

公开(公告)号：JPS61287931A

公开(公告)日：1986-12-18

申请号：JP13223286

申请日：1986-06-07

Applicant: AGENCY IND SCIENCE TECHN

Inventor： ITO SHOJI ,  FURUYA SETSUKO ,  MIZOGUCHI KENSAKU ,  SUDA MASAO

IPC: C08J3/24 ,  C08F20/00 ,  C08F20/52 ,  C08F220/00 ,  C08F220/56 ,  C08F220/58

Abstract: PURPOSE:To produce a crosslinked molding having thermoplasticity, being insoluble in water and being capable of retaining its shape, by radical- polymerizing a specified acrylamide derivative and an N-methylolacrylamide and molding and crosslinking the polymer. CONSTITUTION:1mol of a compound of the formula is mixed with 1mol or below of an N-methylolacrylamide, and the mixture is radical-polymerized in a state of solution. The obtained copolymer is molded and then crosslinked by heating. In the formula, R1 is H or methyl and R2 is n-propyl or isopropyl. To copolymerize a compound of the formula with N-methylolacrylamide, it is necessary to perform the copolymerization in a solvent in which the monomers can be dissolved homogeneously. Examples of such solvents include water, alcohols and N,N-diethylacetamide. In order to give a NW suitable for processing into a molding to this copolymer, it is preferable to produce it so that it has an intrinsic viscosity [eta], as measured in, for example, a methanol solution at 30 deg.C, of about 0.01-6.0.

公开(公告)号：JPS61197615A

公开(公告)日：1986-09-01

申请号：JP3828885

申请日：1985-02-27

Applicant: AGENCY IND SCIENCE TECHN

Inventor： ITO SHOJI ,  MIZOGUCHI KENSAKU ,  SUDA MASAO

IPC: C08F20/00 ,  C08F20/52 ,  C08F20/54 ,  C08F20/58 ,  C08F220/00 ,  C08F220/54 ,  C08F220/58

Abstract: PURPOSE:To obtain the titled thermoreversible crosslinkable polymer compound, by radical-copolymerizing N-acryl-piperidine with N-methylolacrylamide in a solution state. CONSTITUTION:A mixture of 1mol of N-acrylpiperidine of formula I and 2mol or below N-methylacrylamide of formula II is dissolved in a solvent (e.g., methanol) so that the concentration of the formed solution may be 1-100%. This solution is copolymerized at 100-200 deg.C for 1-500min to obtain a crosslinkable thermoreversible polymer compound comprising units of formula III and 0.1-66mol% units of formula IV and having, preferably, an intrinsic viscosity [eta]as measured in a chloroform solution or a methanol solution at 30 deg.C of 0.01-6.0. This polymer compound has a property of being easily crosslinked when its molding is heated, so that it can be used as a mechanochemical material, a light-screening material or an adsorbent or for toys, separation membranes, etc.

公开(公告)号：JPH0199871A

公开(公告)日：1989-04-18

申请号：JP25751787

申请日：1987-10-13

Applicant: AGENCY IND SCIENCE TECHN

Inventor： ITO SHOJI ,  MIZOGUCHI KENSAKU ,  YAMAUCHI AIZO ,  SHIOZAWA KAZUO

IPC: B41M1/30

Abstract: PURPOSE:To draw a pattern with excellent sharpness, by forming the pattern on a surface containing high-temp. hydrophobic heatreversible polymer compound using a coloring material composite of which temp. is kept higher than phase transition temp. of the polyer compound. CONSTITUTION:A pattern is drawn on a surface of polymer composite containing high-temp. hydrophobic heat-reversible polymer compound by means of a coloring material composite of which temp. is kept higher than phase transition term. of the polyer compound. Alternately, the temp. of a polymer composite surface containing high-temp. hydrophobic heat-reversible polymer compound is kept higher than phase transition temp. of the heat-reversible polymer compound and a pattern is drawn by means of a coloring material composite. The high-temp. hydrophobic heat-reversible polymer compound is preferably one mainly containing polyvinyl methylether with more than 50 deg.C phase transition temp. and polyacrylamide derivative.

公开(公告)号：JPS6470511A

公开(公告)日：1989-03-16

申请号：JP11634587

申请日：1987-05-13

Applicant: AGENCY IND SCIENCE TECHN

Inventor： ITO SHOJI ,  FUJISHIGE NORINAGA ,  MIZOGUCHI KENSAKU ,  SUDA MASAO

IPC: C08F120/58 ,  C08F20/52 ,  C08L33/24 ,  C08L33/26 ,  C09K3/00

Abstract: PURPOSE:To obtain the titled novel compound which is soluble in water at a low temperature region and reversibly converted to a state insoluble in water at a high-temperature region, and suitable as a light-shielding material for high-temperature chamber, a temperature sensor, an adsorbent for a surfactant, a toy, etc., by carrying out radical polymerization of a specific vinyl compound. CONSTITUTION:The objective compound composed of the recurring unit of formula II and having a mol.wt. corresponding to an intrinsic viscosity [eta]of 0.01-6.0 measured as THF solution at 27 deg.C is produced by radical polymerization of an N-methoxyethoxypropyl (meth)acrylamide of formula I (R is H or methyl). The compound of formula I used as a starting raw material is a novel substance producible e.g. by reacting (meth)acryloyl chloride with methoxyethoxypropylamine and triethylamine in a solvent at 0-10 deg.C.