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Otto S Depierne

from Norwalk, CT
Deceased

Otto Depierne Phones & Addresses

  • 4 Woodside Ave, Norwalk, CT 06855 (203) 853-0550
  • Lancaster, PA

Work

Position: Professional/Technical

Education

Degree: Graduate or professional degree

Publications

Us Patents

Paper Sizing Agents And Methods

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US Patent:
61144177, Sep 5, 2000
Filed:
Oct 16, 1998
Appl. No.:
9/174076
Inventors:
Michael Philip O'Toole - Norwalk CT
Otto S. dePierne - East Norwalk CT
Assignee:
Cytec Technology Corp. - Wilmington DE
International Classification:
C08L 500
C08F 216
US Classification:
524 27
Abstract:
Sizing agents comprised of dispersed synthetic polymers in an aqueous solution are provided, as well as methods for making these sizing agents and methods for using these sizing agents to size paper. Improved sizing is obtained by including recurring units of methyl acrylate, ethyl acrylate and/or propyl acrylate in the synthetic polymers.

Styrene/Acrylic Type Polymers For Use As Surface Sizing Agents

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US Patent:
51225689, Jun 16, 1992
Filed:
Feb 6, 1991
Appl. No.:
7/651168
Inventors:
Otto S. dePierne - Norwalk CT
David L. Dauplaise - Norwalk CT
Robert J. Proverb - Danbury CT
Assignee:
American Cyanamid Company - Stamford CT
International Classification:
C08L 3506
US Classification:
524824
Abstract:
A process is disclosed for the preparation of styrene/acrylic type polymers which are useful in the sizing of paper. The process comprises polymerizing the monomers in an alcohol/water mixture at reflux temperature in the presence of a free-radical generating catalyst. The catalyst is added portion-wise over the course of the reaction and the resultant polymer is neutralized while substantially simultaneously separating the alcohol/water mixture and adding water to recover a product of less than 25% polymer solids.
Otto S Depierne from Norwalk, CTDeceased Get Report