公开(公告)号：JPH06306033A

公开(公告)日：1994-11-01

申请号：JP12202193

申请日：1993-04-26

Applicant: AGENCY IND SCIENCE TECHN

Inventor： ITO SHOJI

IPC: C07C233/20 ,  C08F20/52 ,  C08F20/58

Abstract: PURPOSE:To provide a novel vinyl compound suitable as a monomer for a heat-sensitive polymeric compound exhibiting phase-transition in water and utilizable as light-shielding material, temperature sensor, adsorbent, toy, interior goods, printing agent, display, separation membrane and mechanochemical material. CONSTITUTION:This is a vinyl compound of formula (R is H or CH3), e.g. N-2-isopropoxyethylacrylamide. The compound of formula I can be produced e.g. by reacting acryloyl chloride or methacryloyl chloride of formula II with 2-aminoethyl isopropyl ether and triethylamine in a solvent maintained at 0-10 deg.C. The polymeric compound derived from the novel vinyl compound is soluble in water at a low temperature and becomes water-insoluble at a high temperature.

公开(公告)号：JPH04119182A

公开(公告)日：1992-04-20

申请号：JP23113690

申请日：1990-08-31

Applicant: AGENCY IND SCIENCE TECHN ,  IBARAKI PREFECTURE

Inventor： KOBAYASHI TOSHIHIRO ,  ITO SHOJI ,  HIRASA OKIHIKO ,  YAMAUCHI AIZO

IPC: D06P5/12 ,  C08L33/24 ,  C08L33/26

Abstract: PURPOSE:To enable the dyeing in excellent resist printing effect by using a resist printing material composed of a film of a heat-sensitive polyacrylamide derivative exhibiting phase-transition between hydrophilic state and hydrophobic state with temperature in the presence of water. CONSTITUTION:A solution composed mainly of a heat-sensitive polyacrylamide derivative (e.g. poly-N-isopropyl acrylamide) exhibiting reversible phase-transition between hydrophilic state and hydrophobic state with temperature is formed in the form of a film of a resist printing material. The film is cut to a prescribed pattern and pasted on a cloth wet with water and the cloth is printed over the resist film and steamed (or dip dyed) at a temperature above the intrinsic phase-transition temperature of the heat-sensitive polymer. Color is developed by this process on the cloth except for the pasted part to attain an excellent resist printing effect leaving a clear white part on the cloth. Both faces of a cloth can easily be dyed in different colors by coloring the other face of the cloth by similar method.

公开(公告)号：JPH02129209A

公开(公告)日：1990-05-17

申请号：JP28218488

申请日：1988-11-08

Applicant: AGENCY IND SCIENCE TECHN

Inventor： ITO SHOJI ,  HIRASA OKIHIKO ,  FUJISHIGE NORINAGA ,  YAMAUCHI AIZO

IPC: C08F20/58 ,  C08F20/52 ,  C09K3/00

Abstract: PURPOSE:To obtain efficiently a polymeric compd. having a transition temp. difference from the conventional ones and being thermoreversibly hydrophilic- hydrophobic by the radical-polymerizing of a specific vinyl compd. CONSTITUTION:N-(2-Methoxyethyl)-N-ethylacrylamide (A), which is a vinyl compd. of formula I, is obtd. by reacting acryloyl chloride, N-(2-methoxyethyl) ethylamine and triethylamine in a solvent at 0-10 deg.C. The title compd. with an MW corresponding to an intrinsic viscosity (measured in tetrahydrofuran soln. at 27 deg.C) of 0.01-6.0 and consisting of repeating units of formula II is obtd. by soln.-polymerizing the component A in the presence of 0.005-5wt.% polymn. initiator (B) (e.g., ammonium persulfate) based on the component A in an org. solvent having a concn. of the component A of 1-80wt.%.

公开(公告)号：JPH01249750A

公开(公告)日：1989-10-05

申请号：JP7967188

申请日：1988-03-31

Applicant: AGENCY IND SCIENCE TECHN

Inventor： ITO SHOJI

IPC: C07C233/20 ,  C08F20/52 ,  C08F20/58

Abstract: NEW MATERIAL:An N,N-di(2-methoxyethyl)acrylamide shown by formula I. USE:A raw material monomer of hydrophilic-hydrophobic type heat reversible polymer compounds having different transition temperatures. Useful as a light screening material for green house, chemical laboratory, radioactive isotope laboratory, temperature sensor, adsorbent of surfactant, etc., toys, interior, printing agent, display, separating membrane, chemical element material, etc. PREPARATION:For example, acrylic acid chloride shown by formula II is reacted with bis(2-methoxyethyl)amine shown by formula III and triethylamine shown by formula IV in a solvent such as toluene maintained at 0-10 deg.C to give a compound shown by formula I.

公开(公告)号：JPS6344638A

公开(公告)日：1988-02-25

申请号：JP18983486

申请日：1986-08-13

Applicant: AGENCY IND SCIENCE TECHN

Inventor： ITO SHOJI ,  MIZOGUCHI KENSAKU ,  SUDA MASAO

IPC: G02F1/19

Abstract: PURPOSE:To obtain a distinct image having high contrast and high resolution by sandwiching a soln. consisting of three components; a solvent, N-substd. acrylamide polymer are polyvinyl pyrolidone or PE glycol as a high-polymer dispersion stabilizer between a pair of substrates formed with heating elements on the surfaces. CONSTITUTION:This element has the substrate 1, a polymer liquid layer 2, a transparent protective plate 3 and an IR absorption layer 8 corresponding to the heating element. The polymer liquid layer 2 is the liquid layer consisting of the soln. contg. the N-substd. acrylamide polymer, for which; for example, the polymers obtainable from monomers such as N-isopropylacrylamide or N-isopropyl methacrylamide or the copolymers thereof or the copolymers essentially consisting thereof, etc., are adequate. Polyvinyl pyrolidone, PE glycol, etc., are adequate as the high-polymer dispersion stabilizer to be used.

公开(公告)号：JPS62243608A

公开(公告)日：1987-10-24

申请号：JP8754986

申请日：1986-04-16

Applicant: AGENCY IND SCIENCE TECHN

Inventor： ITO SHOJI ,  MIZOGUCHI KENSAKU ,  SUDA MASAO

IPC: C08F20/56 ,  C08F20/52 ,  C08F120/56

Abstract: PURPOSE:To produce the titled polymer having thermal reversibility to become hydrophobic at high temperature and reversibly convertible between a water-soluble state at low temperature and water-insoluble state at high temperature, in high efficiency, by the radical polymerization of N-methyl-N- isopropylacrylamide. CONSTITUTION:The objective polymer of formula II is produced by the radical polymerization of N-methyl-N-isopropylacrylamide of formula I usually in the form of a 1-80wt% solution under radiation of actinic ray, heating in the presence of radical polymerization initiator or radiating light in the presence of a photo-sensitizer, etc. USE:Light-shielding material for greenhouse or chemical laboratory, etc., temperature sensor, toys, interior goods, mechanochemical element material, etc.

公开(公告)号：JPS62242654A

公开(公告)日：1987-10-23

申请号：JP8755186

申请日：1986-04-16

Applicant: AGENCY IND SCIENCE TECHN

Inventor： ITO SHOJI ,  MIZOGUCHI KENSAKU ,  SUDA MASAO

IPC: C08F20/56 ,  C07C233/09 ,  C08F20/00 ,  C08F20/52

Abstract: NEW MATERIAL:A vinyl compound shown by the formula. USE:Useful as a raw material monomer for hydrophilic-hydrophobic heat reversible high polymer compound usable for glare protecting material, temperature sensor, adsorbent, toy, interior, printing agent, display, separating membrane, mechano-chemical element material, etc. PREPARATION:Acrylic acid chloride is reacted with methylisopropylamine and triethylamine in a solvent such as benzene, etc., at 0-10 deg.C to give a vinyl compound shown by formula.

公开(公告)号：JPS62148504A

公开(公告)日：1987-07-02

申请号：JP29010085

申请日：1985-12-23

Applicant: AGENCY IND SCIENCE TECHN

Inventor： ITO SHOJI ,  MIZOGUCHI KENSAKU ,  SUDA MASAO

IPC: C08F20/58 ,  C08F20/52 ,  C08F120/58 ,  C08K3/20 ,  C08L37/00

Abstract: PURPOSE:To produce the titled polymer, having thermal reversibility of becoming soluble in water at low temperatures and insoluble at high temperatures and useful for light shielding materials, temperature sensors, interiors, etc., by radically polymerizing a specific vinyl compound. CONSTITUTION:A polymer, obtained by radically polymerizing a vinyl compound expressed by formula I (R1 is H or CH3), e.g. N-tetra hydrofurfurylmethacrylamide, N-tetrahydrofurfurylmethacrylamide, etc., in a 1-80wt% solution prepared by dissolving in a solvent, preferably N,N- dimethylformamide, THF, etc., by a solution polymerization method and expressed by formula II (n is an integer of >=2). The vinyl compound expressed by formula I is obtained by reacting a (meth)acryloyl chloride expressed by formula III with tetrahydrofurfurylamine expressed by formula IV and triethylamine expressed by formula V in benzene at 0-10 deg.C.

公开(公告)号：JPS62148478A

公开(公告)日：1987-07-02

申请号：JP29009985

申请日：1985-12-23

Applicant: AGENCY IND SCIENCE TECHN

Inventor： ITO SHOJI ,  MIZOGUCHI KENSAKU ,  SUDA MASAO

IPC: C07D307/14 ,  C07D307/52 ,  C08F20/52 ,  C08F20/58

Abstract: NEW MATERIAL:A vinyl compound of the formula (R1 is H, methyl). EXAMPLE:N-tetrahydrofrufrylacrylamide. USE:Starting monomer for hydrophilic-hydrophobic thermally reversible polymer which is used in light shielder, temperature sensor, adsorbent, toys, interior commodity, printing dye, display, separation membrane and mechanochemical element. PREPARATION:For example, the reaction of acryloyl or methacryloyl chloride with tetrahydrofrufrylamine is carried out in the presence of triethylamine in a solvent, preferably at 0-10 deg.C to give a compound of formula I.

公开(公告)号：JPH1087751A

公开(公告)日：1998-04-07

申请号：JP23870096

申请日：1996-09-10

Applicant: AGENCY IND SCIENCE TECHN

Inventor： ITO SHOJI

IPC: A61K9/16 ,  A61K8/02 ,  C08F220/54 ,  C08F220/56 ,  C08F226/06 ,  C09K3/00 ,  A61K7/00

Abstract: PROBLEM TO BE SOLVED: To obtain the subject beads useful for microbeads for diagnose, sustained release preparation, adsorbent, cosmetic, etc., sensitive to both pH and heat, capable of changing particle diameters according to their change, comprising a crosslinked substance of a copolymer of a specific unsaturated amide monomer and an N-vinylimidazole monomer. SOLUTION: The beads comprises a crosslinked substance of a copolymer of 60-99mol% of an unsaturated amide monomer of formula I (R is H or methyl; at least one of R and R is an alkyl or an alkoxyalkyl and the other is H) and 40-1mol% of an N-vinylimidazole monomer of formula II (R to R are each H or an alkyl).