公开(公告)号：JPH0482886A

公开(公告)日：1992-03-16

申请号：JP19524590

申请日：1990-07-24

Applicant: AGENCY IND SCIENCE TECHN

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

IPC: C07D317/28 ,  C08F20/52 ,  C08F20/58

Abstract: NEW MATERIAL:N-Methyl-N-2-(1,3-dioxolan-2-yl)ethylacrylamide expressed by formula I. USE:A raw material monomer for heat-sensitive polymer compounds, utilizable as light shielding substances, temperature sensors, adsorbents, toys, interiors, printing agents, displays, separation membranes and mechanochemical materials and capable of causing phase transition in water and alcoholic solvents. PREPARATION:Acryloyl chloride expressed by formula II is reacted with N- methyl-2-aminoethyl-1,3-dioxolane expressed by formula III and triethylamine in a solvent at 0-10 deg.C.

公开(公告)号：JPH0481408A

公开(公告)日：1992-03-16

申请号：JP19524690

申请日：1990-07-24

Applicant: AGENCY IND SCIENCE TECHN

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

IPC: B41M5/28 ,  B41M5/36 ,  C08F20/52 ,  C08F20/58

Abstract: PURPOSE:To obtain the subject new heat-sensitive high polymer compound having specific intrinsic viscosity, capable of phase transfer in water or alcohol solvent and used for temperature sensor, etc., by subjecting a specific acrylic amide derivative having 1,3-dioxolane ring to radical polymerization. CONSTITUTION:N-Methyl-N-2-(1,3-dioxolane-2-yl)ethylacryl amide prepared by reacting N-methyl-2-aminoethyl-1,3-dioxolane with acrylic acid chloride in the presence of triethylamine in benzene and expressed by formula I is polymerized in the presence of a radical polymerization initiator such as azobisisobutyronitrile (AIMN) in a solvent such as benzene while heating to provide the aimed heat sensitive high polymer compound consisting of recurring units expressed by formula II and having molecular weight in which intrinsic viscosity [eta] at 27 deg.C in an aqueous solution corresponds to 0.01-6.0.

公开(公告)号：JPH038787A

公开(公告)日：1991-01-16

申请号：JP14134389

申请日：1989-06-02

Applicant: AGENCY IND SCIENCE TECHN

Inventor： FUJISHIGE NORINAGA

IPC: C05C9/00 ,  C05G3/00

Abstract: PURPOSE:To reduce water vapor absorption by adding starch to a saturated aqueous solution of urea, heating, uniformly dissolving, drying and solidifying. CONSTITUTION:A saturated aqueous solution having dissolved 100 pts.wt. urea is heated to >=50 deg.C, preferably 70-80 deg.C, >=5 pts.wt. starch is blended therewith and uniformly dissolved in the aqueous solution, allowed to stand to room temperature, air-dried or allowed to stand in a dryer and dried, solidified in a crystallized state of urea as needle-like crystal to give a urea starch complex. The complex is made into a fertilizer to gradually release urea at higher speed.

公开(公告)号：JPH02147609A

公开(公告)日：1990-06-06

申请号：JP30209788

申请日：1988-11-29

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 a new thermally reversible hydrophilic-hydrophobic polymer compd. which is reversibly water-soluble at a low temp. range and water- insoluble at a higher temp. range and have a transition temp. different from conventional products by radical-polymerizing N-(2-methoxyethyl)N-n- propylacrylamide. CONSTITUTION:This thermally reversible hydrophilic-hydrophobic polymer compd. consists of a repeating units of formula I and has an MW corresponding to an intrinsic viscosity [eta] of a tetrahydrofulan soln. at 27 deg.C of 0.01-6.0. This polymer compd. is obtd. by radical-polymerizing a vinyl compd. of formula II. In addition, this polymer compd. is reversibly soluble in water at a lower temp. range and insoluble in water at a higher temp. range. The transition temp. changes in accordance with polymn. condition and is usually in the range of about 11-14 deg.C. This polymer compd. can be used as a light insulating body, a temp. sensor, an adsorbent, a toy, an interior, a display, etc.

公开(公告)号：JPS649966A

公开(公告)日：1989-01-13

申请号：JP16600887

申请日：1987-07-02

Applicant: AGENCY IND SCIENCE TECHN

Inventor： ITO SHOJI ,  MIZOGUCHI KENSAKU ,  FUJISHIGE NORINAGA ,  YAMAUCHI AIZO

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

Abstract: NEW MATERIAL:A vinyl compound shown by formula I (R is H or methyl). EXAMPLE:N-1-Methoxymethylpropylacrylamide. USE:Useful as a raw material monomer for a high polymer compound of hydrophilic-lipophilic heat reversible type useful as a glare protecting material, temperature sensor, adsorbent, toy, interior, printing auxiliary, display, separating function membrane and mechanochemical material. PREPARATION:For example, (meth)acrylic acid chloride is reacted with 2- amino-1-methoxybutane and triethylamine in a solvent such as benzene at 0-10 deg.C to give a compound shown by formula I. A another method, (melt)acrylic acid chloride is reacted with 2-amino-1-methoxybutane in a solvent preferably at 0-10 deg.C to give a compound shown by formula I.

公开(公告)号：JPS63295542A

公开(公告)日：1988-12-01

申请号：JP13101487

申请日：1987-05-27

Applicant: AGENCY IND SCIENCE TECHN

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

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

Abstract: NEW MATERIAL:The compound of formula (R is H or methyl). EXAMPLE:N-1-methyl-2-methoxyethylacrylamide. USE:Useful as a raw material monomer for a polymeric compound thermally reversible between hydrophilic and hydrophobic states. It can be used e.g. as a light-shielding material for greenhouse, a temperature sensor, an adsorbent for surfactant, toy, interior good, printing agent, display, separation membrane or material for mechanochemical element. It has different transition temperatures. PREPARATION:The compound of formula can be produced by reacting (meth) acrylic acid chloride with 2-amino-1-methoxypropane and triethylamine in a solvent such as toluene at 0-10 deg.C.

公开(公告)号：JPS63280049A

公开(公告)日：1988-11-17

申请号：JP11634487

申请日：1987-05-13

Applicant: AGENCY IND SCIENCE TECHN

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

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

Abstract: NEW MATERIAL:A compound shown by formula I (R is H or methyl). EXAMPLE:N-Methoxyethoxypropylacrylamide. USE:Useful as a raw material monomer for a high polymer compound of hydrophilic-hydrophobic heat reversible type. The polymer is reversibly dissolved in water in a low-temperature range, becomes water-insoluble in a high- temperature range and is useful as a light screening material, temperature sensor, adsorbent, toy, interior, printing auxiliary and display. PREPARATION:(Meth)acrylic acid chloride is reacted with methoxyethoxypropylamine and triethylamine in a solvent such as benzene at 0-10 deg.C to give a compound shown by the formula. The vinyl compound of this invention, N-methoxyethoxypropylacrylamide and N- methoxyethoxypropylmethacrylamide are colorless liquid, soluble in solvents such as water, methyl alcohol, acetone and THF and insoluble in n-hexane and n-heptane.

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：JPS61226037A

公开(公告)日：1986-10-07

申请号：JP6808885

申请日：1985-03-30

Applicant: AGENCY IND SCIENCE TECHN

Inventor： SUZUKI MAKOTO ,  FUJISHIGE NORINAGA

IPC: A61F2/08 ,  C08F220/00 ,  C08F220/04 ,  C08F220/06

公开(公告)号：JPS61183125A

公开(公告)日：1986-08-15

申请号：JP2097185

申请日：1985-02-07

Applicant: AGENCY IND SCIENCE TECHN ,  KASHIMA SEKYU KK

Inventor： FUJISHIGE NORINAGA ,  TSURUTA MEIJI ,  CHIBA AKIRA

IPC: H01F1/11 ,  C01G49/06

Abstract: PURPOSE:To obtain fine gamma-iron oxide particles having superior dispersibility in water and various org. solvents by uniformly dispersing dehydrated fine magnetite particles in a nonaqueous solvent and oxidizing them by heating at a specified temp. or above. CONSTITUTION:Fine magnetite particles are dehydrated by washing with a hydrophilic solvent such as acetone or alcohol. Methanol, ethanol or propanol is preferably used as the alcohol. The dehydrated fine magnetite particles are uniformly dispersed in a nonaqueous solvent such as decyl alcohol, kerosene or silicone oil and the resulting dispersion is heat treated at >=100 deg.C.