1.
    发明专利
    未知

    公开(公告)号:DE69030680T2

    公开(公告)日:1997-10-23

    申请号:DE69030680

    申请日:1990-03-05

    Abstract: The present invention relates to a process for the preparation of a thermoplastic resin composite comprising conducting polycondensation of a monomer material in a solution of an organic solvent containing an organic solvent soluble polymer to form an aromatic condensation polymer which is insoluble in said organic solvent and a thermoplastic resin composite prepared by the process.

    2.
    发明专利
    未知

    公开(公告)号:DE69030680D1

    公开(公告)日:1997-06-19

    申请号:DE69030680

    申请日:1990-03-05

    Abstract: The present invention relates to a process for the preparation of a thermoplastic resin composite comprising conducting polycondensation of a monomer material in a solution of an organic solvent containing an organic solvent soluble polymer to form an aromatic condensation polymer which is insoluble in said organic solvent and a thermoplastic resin composite prepared by the process.

    CONDENSED COPOLYMER WITH LIQUID CRYSTAL PROPERTY

    公开(公告)号:JPH01229033A

    公开(公告)日:1989-09-12

    申请号:JP5266588

    申请日:1988-03-08

    Abstract: PURPOSE:To obtain the title movel polymer outstanding in heat resistance, giving liquid crystal property when dissolved in a specific solvent, thus useful for e.g., liquid crystal display elements, by copolycondensation between p- oxyenzoic acid and a dimethyl-hydroxybenzoic acid in specified proportion. CONSTITUTION:The objective polymer obtained by copolycondensation between (A) p-oxybenzoic acid and (B) 3,5-dimethyl-4-hydroxybenzoic acid in the molar ratio A/B=0.35/0.65-0.65/0.35, with its 10wt.% 0-chlorophenol solution prepared at 50 deg.C having liquid crystal property. This polymer is suggested to be obtained by the following process: a solvent such as nitrobenzene is incorporated with triphenylphosphine oxide and phosgene to form triphenylphosphine dichloride as the catalyst followed by incorporating the resultant catalytic system with the components A and B and carrying out polycondensation in the presence of e.g., triethylamine.

    PRODUCTION OF THERMOPLASTIC RESIN COMPOSITE

    公开(公告)号:JPH0320327A

    公开(公告)日:1991-01-29

    申请号:JP4580890

    申请日:1990-02-28

    Abstract: PURPOSE:To obtain the subject composite having excellent heat resistance characteristic of an aromatic condensation polymer and improved processability by polycondensing a starting monomer in a solution of a soluble polymer in an organic solvent to form an aromatic condensation polymer insoluble in the solvent. CONSTITUTION:An aromatic dicarboxylic acid and an aromatic diol, or an aromatic dicarboxylic acid, an aromatic diamine, an aromatic aminocarboxylic acid or the like are polycondensed in the presence of a catalyst, or an aromatic dicarboxylic dihalide and an aromatic diol, or an aromatic dicarboxylic dihalide and an aromatic diamine as starting monomers are polycondensed in the absence of any catalyst in a solution of a soluble polymer in an organic solvent (e.g. a solution of a polyarylate in a mixed chloroform/pyridine solvent) to form an aromatic polyester or an aromatic polyamide insoluble in the solvent. In this way, a thermoplastic resin composite composed of a homogeneous mixture of the polymer soluble in the solvent with the aromatic condensation polymers insoluble in the solvent can be obtained.

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