Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From carboxylic acid or derivative thereof
Patent
1995-06-01
1997-07-15
Dodson, Shelley A.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From carboxylic acid or derivative thereof
528354, 528361, C08G 6308, C08G 6384
Patent
active
056484526
ABSTRACT:
The present invention relates to a method of preparing a polyester comprising polymerizing at least one .beta.-substituted-.beta.-propiolactone in the presence of an initiating amount of alkylzinc alkoxide in bulk or in solvent for a reaction time and temperature sufficient to produce said polyester.
REFERENCES:
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Kemper Joseph Jay
Schechtman Lee Arnold
Clark Karen F.
Corstanje Braham J.
Dodson Shelley A.
Suter David L.
The Procter & Gamble & Company
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