Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From carboxylic acid or derivative thereof
Patent
1980-10-29
1982-12-28
Anderson, Harold D.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From carboxylic acid or derivative thereof
528313, 528323, 528481, 528483, C08G 6916
Patent
active
043663060
ABSTRACT:
.epsilon.-Caprolactam is melt polymerized in the presence of water and from about 0.01 mole percent to less than about 0.6 mole percent of an amine boiling at a temperature greater than 245.degree. C. An amine may be a primary or secondary amine wherein the NH has attached thereto, for example alkyl radicals, cycloalkyl radicals, and the like. The resultant polymer has a methanol extractable content of 3 weight percent or less.
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Anderson Harold D.
Ingraham R. B.
The Dow Chemical Company
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