Preparation method of high molecular weight polycarbonate resin

Details Preparation method of high molecular weight polycarbonate resin Preparation method of high molecular weight polycarbonate resin

2006-12-12

2006-12-12

Boykin, Terressa (Department: 1711)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

C422S131000, C528S198000, C528S480000

Reexamination Certificate

active

07148312

ABSTRACT:
The present invention relates to a method for the preparation of a high molecular weight polycarbonate resin, and more particularly to a method for preparing a high molecular weight polycarbonate resin using a solid state polymerization method after the preparation of a crystalline polycarbonate or-conducting the preparation of the crystalline polycarbonate and the solid state polymerization thereof simultaneously. According to the method for the preparation of a high molecular weight polycarbonate resin of the invention, it is possible to produce a high molecular weight polycarbonate resin having a narrow molecular weight distribution and uniform properties and that is applicable to injection and extrusion in large quantities with a low cost within a short time.

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patent: 200080171 (2000-03-01), None
PCT International Search Report; International application No. PCT/KR03/02070; International filing date: Oct. 8, 2003; Date of Mailing: Feb. 11, 2004.

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