BROMINATED BIPHENYLNOVOLAK COMPOUND, ITS PRODUCTION AND RESIN COMPOSITION

Title:

BROMINATED BIPHENYLNOVOLAK COMPOUND, ITS PRODUCTION AND RESIN COMPOSITION

Document Type and Number:

Japanese Patent JPH10231263

Kind Code:

A

Abstract:

To obtain a new compound high in bromide content and good in thermal stability by brominating a biphenylnovolak compound in a halogenated hydrocarbon solvent by using a specific acid catalyst.

This brominated bipheylnovolak compound is a compound of formula I [R1 is a monovalent aromatic ring; Q1 is a divalent aromatic ring; (a), (b), (c) and (d) are each 0-4; (n) is 0-9] and having 20-70wt.% bromine content, e.g. the compound obtained by brominating a compound of formula II. The compound of formula I is obtained by reacting 100 pts.wt. biphenylnovolak of formula III (R is a monovalent aromatic ring; Q is a divalent aromatic ring) having 400-1000 average molecular weight with a brominating agent e.g. 60-480 pts.wt. Br in the presence of 1-20 pts.wt. Lewis acid such a AlBr3 as a catalyst based on 100 pts.wt. compound of formula III at a normal temperature under a normal pressure.

Inventors:

KURODA NOBUYUKI
NAKAMURA TAKAHITO
OKAZAKI KATSUHIKO
MISHIMA KIYOSHI
KAWANISHI NORIYUKI

Application Number:

JP3736997A

Publication Date:

September 02, 1998

Filing Date:

February 21, 1997

Export Citation:

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Assignee:

UBE INDUSTRIES
MEIWA KASEI KK
MANAC INC

International Classes:

C07C37/62; C07C39/26; C07C39/38; C08G8/00; C08K5/136; C08L61/00; C08L101/00; C09K21/08; (IPC1-7): C07C39/26; C07C37/62; C07C39/38; C08G8/00; C08K5/136; C08L61/00; C08L101/00; C09K21/08

Attorney, Agent or Firm:

Hajime Tsukuni (1 person outside)

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