Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From carboxylic acid or derivative thereof
Patent
1989-05-31
1991-04-09
Anderson, Harold D.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From carboxylic acid or derivative thereof
528312, 528313, 528318, 528323, C08G 6916
Patent
active
050066358
ABSTRACT:
A molecular weight controller having particular application in the polymerization of a lactam, i.e., epsiloncaprolactam, to a polyamide, i.e., poly(epsiloncaprolactam). The molecular weight controller comprises a primary monofunctional amine, i.e., benzylamine, a primary monofunctional acid, i.e., acetic acid, and a salified aminoacid containing an aromatic, a cyclohexane, or cyclopentane moiety, i.e., 4-(aminomethyl)benzoic acid salified with p-toluenesulfonic acid. The resulting polyamide has a reduced water extractable content.
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Anderson Harold D.
BASF Corporation
Dellerman Karen M.
Sherer Edward F.
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