Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...
Patent
1981-12-11
1982-11-02
Phynes, Lucille M.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
At least one aryl ring which is part of a fused or bridged...
528272, 528274, 528285, 524878, 528275, C08G 6322
Patent
active
043574610
ABSTRACT:
Disclosed is a process for preparing a saturated polyester resin containing ##STR1## groups and having good stability against generation of acetaldehyde at elevated temperatures, which comprises having an alkali metal salt of ethylenediaminetetraacetic acid present in the melt polymerization reaction mixture during formation of such polyester, in an amount up to 0.5 mol percent based on the saturated di- and polycarboxylic acid moieties entering into the polymerization reaction, and products.
REFERENCES:
patent: 4142040 (1979-02-01), Jabarin et al.
patent: 4154920 (1979-05-01), Jabarin
patent: 4230819 (1980-10-01), Hauenstein et al.
patent: 4238593 (1980-12-01), Duh
Burzynski Dennis J.
Go Santos W.
Click Myron E.
Lynch Charles S.
Owens--Illinois, Inc.
Phynes Lucille M.
Wilson David H.
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