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Frederick Schappell Phones & Addresses

  • Newark, DE
  • Baltimore, MD
  • Lutherville Timonium, MD
  • Wilmington, DE
  • 3 Mars Rd, Newark, DE 19711 (302) 521-6860

Work

Position: Service Occupations

Education

Degree: Bachelor's degree or higher

Publications

Us Patents

Brominated Azido Fire Retardants

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US Patent:
39578356, May 18, 1976
Filed:
Jan 15, 1975
Appl. No.:
5/541182
Inventors:
James C. W. Chien - Amherst MA
Frederick George Schappell - Newark DE
Assignee:
Hercules Incorporated - Wilmington DE
International Classification:
C07C11700
US Classification:
260349
Abstract:
Disclosed are brominated azido fire-retardants having the formula (Br). sub. x --R--[(R'). sub. n --A]. sub. y Where R is an organic radical; R' is selected from ##EQU1## --O(R"-O). sub. b --R"--, ##EQU2## where R" is selected from alkylene, cycloalkylene, alkylene cycloalkylene, arylene, alkylene arylene, and the foregoing radicals with bromo substituents, and b is an integer from 1 to 10; A is selected from ##EQU3## and --SO. sub. 2 N. sub. 3 where z is 0 or 1; x is at least 3; n is 0 or 1; and y is an integer from 1 to 100. Also disclosed is the process of preparing fire-retardant natural and synthetic fibers and films which comprises contacting the surface of said fiber or film with a brominated azido fire-retardant and initiating reaction of the fire-retardant with the fiber or film by heat or irradiation.

Process Of Preparing Fire-Retardant Natural And Synthetic Fibers

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US Patent:
40092941, Feb 22, 1977
Filed:
Apr 18, 1975
Appl. No.:
5/569251
Inventors:
James C. W. Chien - Amherst MA
Frederick George Schappell - Newark DE
Assignee:
Hercules Incorporated - Wilmington DE
International Classification:
B05D 306
US Classification:
427 35
Abstract:
Disclosed are brominated azido fire-retardants having the formula (Br). sub. x --R--[(R'). sub. n --A]. sub. y where R is an organic radical; R' is selected from ##STR1## where R" is selected from alkylene, cycloalkylene, alkylene cycloalkylene, arylene, alkylene arylene, and the foregoing radicals with bromo substituents, and b is an integer from 1 to 10; A is selected from ##STR2## and --SO. sub. 2 N. sub. 3 where z is 0 or 1; x is at least 3; n is 0 or 1; and y is an integer from 1 to 100. Also disclosed is the process of preparing fire-retardant natural and synthetic fibers and films which comprises contacting the surface of said fiber or film with a brominated azido fire-retardant and initiating reaction of the fire-retardant with the fiber or film by heat or irradiation.

Bis-Monoperoxyacetals And -Ketals

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US Patent:
39563987, May 11, 1976
Filed:
May 16, 1975
Appl. No.:
5/578221
Inventors:
Frederick G. Schappell - Newark DE
Assignee:
Hercules Incorporated - Wilmington DE
International Classification:
C07C17906
US Classification:
260610R
Abstract:
Bis-monoperoxyacetals and bis-monoperoxyketals having the formula ##EQU1## wherein R is selected from the group consisting of C. sub. 4 -C. sub. 12 tertiary alkyl and C. sub. 9 -C. sub. 12 tertiary aralkyl and R. sub. 1 is selected from the group consisting of hydrogen and C. sub. 1 -C. sub. 12 alkyl, are effective crosslinking agents for polymers at relatively low cure temperatures.
Frederick G Schappell from Newark, DEDeceased Get Report