Process for producing modified epoxy resin, modified epoxy resin

Details Process for producing modified epoxy resin, modified epoxy resin Process for producing modified epoxy resin, modified epoxy resin

1997-07-22

1999-06-08

Gulakowski, Randy

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525463, 525481, 525533, 525534, 528100, 528112, 528370, 528371, C08F 2000

Patent

active

059105488

ABSTRACT:
The process for producing a modified epoxy resin comprises reacting (a) an epoxy resin having at least two epoxy groups per one molecule, and (b) a specific active ester group-containing compound having at least two aromatic ring-bonded active ester groups per one molecule, in proportions such that the amount of the active ester groups in the active ester group-containing compound is from about 0.05 to about 0.95 mol per mole of the epoxy group in the epoxy resin, and the modified epoxy obtained by this process, and a composition of the epoxy resin and a curing agent are encompassed.

REFERENCES:
patent: 2910454 (1959-10-01), Clark et al.
patent: 3754173 (1973-08-01), Eustance
patent: 4229382 (1980-10-01), Mayer et al.
patent: 4297457 (1981-10-01), Stark, Jr.
patent: 5202401 (1993-04-01), Yokoi
Database WPI -- Derwent Publications Ltd. London, G.B. AN 80-06235C & JP-A-54/155,298 (Teijin KK) Dec. 7, 1979 -- See Abstract, Sep. 19, 1995.
Database WPI -- Derwent Publications Ltd. London, G.B. AN 72-80925T & SU-A-328,134 (PRI 2, E.A. Feb. 2, 1972, See Attachment, Sep. 19, 1995.
Database WPI -- Derwent Publications Ltd. London, G.B. AN 71-41899s & JP-B -- 46/021, 898 (Teijin KK) Jun. 22, 1971 -- See Abstract, Sep. 19, 1995.
Makrom Chem., vol. 180, 1979 pp. 501-503 K. Funa Hashi: New Preparation of Polyethers with Pendant Ester Groups and a Poly(ether-carbonate), Sep. 19, 1995.

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