Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From carboxylic acid or derivative thereof
Reexamination Certificate
2006-04-11
2006-04-11
Sanders, Kriellion A. (Department: 1714)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From carboxylic acid or derivative thereof
C528S329100, C528S332000, C528S335000, C528S336000, C528S339000, C528S039000, C008S115600, C008S115510, C252S400500, C428S357000, C428S364000, C428S378000, C428S394000, C428S395000, C524S060000, C524S538000, C524S606000, C524S800000, C524S802000
Reexamination Certificate
active
07026435
ABSTRACT:
Polymer derivatives based upon polyalkyleneimine backbones having from about 20% to about 60% of their reactive amino functionalities substituted by C14-20carboxylic acids, are disclosed. Fiber lubricants and/or sizing compositions comprising such polymer derivatives are also disclosed. The disclosed fiber lubricants exhibit excellent affinity for fiberglass fibers and have excellent hydrophobicity, while also providing excellent lubrication. Methods for preparing said derivatives are also disclosed. Also disclosed are methods for treating fibers using the polymer derivatives.
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Fry Douglas F.
Tuller Frank Norman
Cognis Corporation
Daniels John F.
Sanders Kriellion A.
Seifert Arthur G.
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