Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1991-05-14
1992-05-05
Anderson, Harold D.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
528342, 528481, C08G 6948
Patent
active
051108780
ABSTRACT:
Dry polyamide-epichlorohyrin resin powder that is useful to increase the wet strength of paper is prepared by freeze-drying.
REFERENCES:
patent: 4861815 (1989-08-01), Schultz et al.
patent: 5039758 (1991-08-01), Tobita et al.
Anderson Harold D.
E. I. Du Pont de Nemours and Company
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