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Title:
PREPARATION OF ADDITIVE-CONTAINING THERMOPLASTIC RESIN MOLDING
Document Type and Number:
Japanese Patent JPH1060125
Kind Code:
A
Abstract:

To provide a process for preparing an additive-contg. thermoplastic resin molding which, in the preparation of a thermoplastic resin molding with an additive incorporated therein so as not to cause the volatilization of the additive by the transesterification of a polymer molecule of a thermoplastic resin with the additive, can significantly improve the rate of transesterification in a short time.

Before a thermoplastic resin wherein the polymer molecule has an ester bond or a carboxyl group is heat-melted and molded into a predetermined form, an additive having any one of an amino group, a hydroxyl group, a carboxyl group, and an ester bond is incorporated into the thermoplastic resin, followed by the transesterification of the polymer molecule of the thermoplastic resin in a heat-melted state with the additive in a carbon dioxide atmosphere. The plasticization effect, solvent effect, and catalytic effect attained by the carbon dioxide can markedly improve the rate of transesterification in a short time.


Inventors:
MAKIMURA YOICHIRO
Application Number:
JP1996000231441
Publication Date:
March 03, 1998
Filing Date:
August 12, 1996
Export Citation:
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Assignee:
TAKIRON CO
International Classes:
C08J5/10; B29C47/00; C08L101/00; B29K101/12; (IPC1-7): C08J5/10; B29C47/00
Attorney, Agent or Firm:
永田 久喜