AROMATIC POLYCARBONATE COMPOSITION

Title:

AROMATIC POLYCARBONATE COMPOSITION

Document Type and Number:

WIPO Patent Application WO/1998/010019

Kind Code:

A1

Abstract:

An aromatic polycarbonate composition prepared by a process comprising the steps of: (1) transesterifying at least one liquid feedstock selected among molten mixtures of aromatic dihydroxy compounds with diaryl carbonates and molten prepolymers prepared from the above mixtures under the conditions satisfying a requirement represented by the formula (I) log (S/V) $m(G) 2 x 10?-5� x <o>M</o>n + 0.8, (wherein S represents the evaporation surface area (m?2�) defined as the area (m?2�) of the exposed surface of the liquid feedstock; V represents the volume (m?3�) of the liquid feedstock present in a polymerizer; and <o>M</o>n represents the number-average molecular weight of an aromatic polycarbonate to be produced) to prepare an aromatic polycarbonate (A), (2) adding a thermoplastic resin (B) different from the component (A) to the component (A), and (3) kneading the components (A) and (B) together.

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Inventors:

HACHIYA HIROSHI (JP)
KOMIYA KYOSUKE (JP)

Application Number:

PCT/JP1997/003046

Publication Date:

March 12, 1998

Filing Date:

September 01, 1997

Export Citation:

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Assignee:

ASAHI CHEMICAL IND (JP)
HACHIYA HIROSHI (JP)
KOMIYA KYOSUKE (JP)

International Classes:

C08G64/30; C08L69/00; C08L51/04; C08L55/02; (IPC1-7): C08L69/00; C08K5/49; C08L51/04; C08L55/02

Foreign References:

JPH06240125A	1994-08-30
JPH07196873A	1995-08-01
JPH0733854A	1995-02-03
JPH06172611A	1994-06-21
JPH08176350A	1996-07-09

Other References: