Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From carboxylic acid or derivative thereof
Reexamination Certificate
2005-10-25
2005-10-25
Hightower, P. Hampton (Department: 1711)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From carboxylic acid or derivative thereof
C528S170000, C528S310000, C528S312000, C528S323000, C528S332000, C528S335000, C528S336000
Reexamination Certificate
active
06958381
ABSTRACT:
A process for preparing polyamides comprises polymerizing starting monomers in the presence of from 2.3 to 10 mmol, based on 1 mol of carboxamide group of the polyamide, of a chain regulator containing a nitrile group and a functional group capable of forming a carboxamide group.
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Fischer Michael
Winterling Helmut
BASF - Aktiengesellschaft
Novak Druce & Quigg LLP
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