公开(公告)号：DE60011960T2

公开(公告)日：2005-08-04

申请号：DE60011960

申请日：2000-07-11

Applicant: DAICEL CHEM

Inventor： UEDA MITSURU ,  TAKAHASHI HIROYUKI ,  HAYAKAWA TERUAKI ,  TERANISHI TADASHI

IPC: C08G63/16 ,  C08G63/85

Abstract: The present invention is a process for producing a polyester from a dicarboxylic acid and a diol, which comprises polycondensing the dicarboxylic acid and the diol under the presence of a distannoxane catalyst. Also, the present invention is a process for producing a polyester which comprises melt polycondensing the dicarboxylic acid and the diol under normal pressure in the presence of the distannoxane catalyst, wherein an organic solvent which dose not dissolve any of the dicarboxylic acid, the diol and the polyester produced from the dicarboxylic acid and the diol is present and, whereby, two phases are mainly present.

公开(公告)号：DE60011960D1

公开(公告)日：2004-08-12

申请号：DE60011960

申请日：2000-07-11

Applicant: DAICEL CHEM

Inventor： UEDA MITSURU ,  TAKAHASHI HIROYUKI ,  HAYAKAWA TERUAKI ,  TERANISHI TADASHI

IPC: C08G63/16 ,  C08G63/85

Abstract: The present invention is a process for producing a polyester from a dicarboxylic acid and a diol, which comprises polycondensing the dicarboxylic acid and the diol under the presence of a distannoxane catalyst. Also, the present invention is a process for producing a polyester which comprises melt polycondensing the dicarboxylic acid and the diol under normal pressure in the presence of the distannoxane catalyst, wherein an organic solvent which dose not dissolve any of the dicarboxylic acid, the diol and the polyester produced from the dicarboxylic acid and the diol is present and, whereby, two phases are mainly present.

公开(公告)号：JPH02212518A

公开(公告)日：1990-08-23

申请号：JP3190489

申请日：1989-02-10

Applicant: DAICEL CHEM

Inventor： UEDA MITSURU ,  SUGANO TATSUYA

IPC: C08G64/30 ,  C08G64/20

Abstract: PURPOSE:To obtain a high-MW chloride ion-free polycarbonate without using toxic phosgene by polycondensing a bisphenol with a specified carbonate by melting in the presence of an electron-donating amine compound catalyst. CONSTITUTION:A bisphenol is polycondensed with bis(2,4,6trichlorophenyl) carbonate, bis(2,4-dichlorophenyl) carbonate or bis(2-cyanophenyl) carbonate by melting in the presence of a catalyst selected from electron-donating amine compounds to obtain the purpose polycarbonate. Examples of the bisphenol used include compounds of formulas I-IV (wherein R1, R2, R3 and R4 are each H, a 1-8C linear or branched alkyl or a phenyl; X is a halogen atom; and n is 0-4). The temperature of the polycondensation reaction is desirably 130-250 deg.C. When this temperature is below 130 deg.C, the reaction rate is low, and when it is above 250 deg.C, side reactions are apt to occur.

公开(公告)号：JP2001026640A

公开(公告)日：2001-01-30

申请号：JP19976899

申请日：1999-07-14

Applicant: DAICEL CHEM

Inventor： UEDA MITSURU

IPC: C08G63/85 ,  C08G63/90 ,  C08L101/16

Abstract: PROBLEM TO BE SOLVED: To provide a preparation process of a polyester which easily yields a polymer having a high degree of polymerization with a little amount of catalyst without employing any high-boiling solvents or dehydration operations such as depressurization, etc. SOLUTION: In the presence of a distannoxane catalyst of the formula (wherein R1, R2, R3 and R4 are identical to or different from each other and are each an alkyl group; and X and Y are identical to or different from each other and are each an isothiocyanate group, halogen atom, hydroxy group, alkoxy group or acyloxy group), a diol is polycondensed with a dicarboxylic acid to obtain a corresponding polyester. Here, the amount of diol used is about from 1.0 to 1.20 mol against 1 mol dicarboxylic acid. The polymer generated through polymerization is isolated through precipitation or re-precipitation in an alcohol such as methanol.

公开(公告)号：JP2001302776A

公开(公告)日：2001-10-31

申请号：JP2000124409

申请日：2000-04-25

Applicant: DAICEL CHEM

Inventor： UEDA MITSURU ,  TAKAHASHI HIROYUKI ,  HAYAKAWA TERUAKI ,  TERANISHI TADASHI

IPC: C08G63/85 ,  C08L101/16

Abstract: PROBLEM TO BE SOLVED: To provide a method for manufacturing a polyester, particularly aliphatic polyesters which can easily obtain polymers having a high degree of polymerization with good industrial efficiency. SOLUTION: This method for manufacturing a polyester is a method of manufacturing a polyester from a dicarboxylic acid and a diol and comprises subjecting the dicarboxylic acid and the diol to solution polycondensation under normal pressures in the presence of a distannoxane catalyst by allowing a solvent which does not dissolve any of the dicarboxylic acid, the diol, and a polyester to be formed from the dicarboxylic acid and the diol to be present together to form a state such that mainly two phases exist.

公开(公告)号：JPH02153928A

公开(公告)日：1990-06-13

申请号：JP30847188

申请日：1988-12-06

Applicant: DAICEL CHEM

Inventor： UEDA MITSURU ,  SUGANO TATSUYA ,  IGUCHI YOSHIHIRO

IPC: C08G64/10 ,  C08G64/00 ,  C08G64/20 ,  C08G64/30

Abstract: PURPOSE:To obtain a high-molecular weight, colorless and transparent polymer free from chlorine ion without using poisonous phosgene by reacting a dihydric phenol with bis(trichlorophenyl) carbonate under an interfacial polycondensation polymerization condition in the presence of an electron donative amine compound catalyst. CONSTITUTION:A dihydric phenol [e.g. 2,2-bis-(4-hydroxyphenyl)propane] is reacted with bis(2,4,6-trichlorophenyl) carbonate or bis(2,3-dichlorophenyl) carbonate or bis(2-cyanophenyl) carbonate under an interfacial polycondensation polymerization condition of polycarbonate in the presence of a catalyst selected from electron donative amine compounds (e.g. N,N-dimethyl-4-aminopyridine).

公开(公告)号：JP2001335633A

公开(公告)日：2001-12-04

申请号：JP2000160710

申请日：2000-05-30

Applicant: DAICEL CHEM

Inventor： SUGANO TATSUYA ,  UEDA MITSURU ,  TAKAHASHI HIROYUKI

IPC: C08G69/28

Abstract: PROBLEM TO BE SOLVED: To provide a production method of a polyamide, especially relating to a production method of an aliphatic polyamide, further in delail, to provide an industrially efficient production method which easily obtains a polymer of a high degree of polymerization. SOLUTION: The production method of a polyamide is to produce a polyamide from a dicarboxylic acid and a diamine, in the presence of a distannoxane catalyst, and further, making an organic solvent which cannot dissolve none of the dicarboxylic acid and the diamine, and the polyamide produced by the dicarboxylic acid and the diamine coexist, making the state mainly a state in which two phases exist, and melt-polymerizing the dicarboxylic acid and the diamine under the atmospheric pressure.