Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1998-11-12
2000-09-05
Nutter, Nathan M.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
525 544, 528332, 528397, 528403, 528423, 528492, 162167, 1621682, C08F28304, C08G 5900, C08G 6100, C08G 6926
Patent
active
061144711
ABSTRACT:
The strength of lignocellulosic materials is improved by treating them with water-soluble strengthening agents containing sulfonic units, and rendering these agents water-insoluble by reacting them with compounds containing azetidinium rings. Thus, a substantial reduction or elimination of the bleeding of said strengthening agents from the lignocellulosic materials when touched with wet hands or contacted under humid conditions is achieved.
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Collias Dimitris Ioannis
Owens Blair Alex
Wnuk Andrew Julian
Lewis Leonard W.
Nutter Nathan M.
Oney , Jr. Jack L.
The Proctor & Gamble Company
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