04018724 is referenced by 9 patents and cites 3 patents.

The discoloration occurring during commercial production of large buns or slabs of low density, flexible and semiflexible polyetherurethane foams containing chlorine-containing polymers such as polyvinyl chloride, zinc oxide and antimony oxide, in which optionally part of the chlorine-containing polymer can be replaced with a chlorinated paraffin provided a proportionate reduction is made in the amount of the zinc oxide employed, is reduced or prevented by using a small amount of a zinc salt selected from the group consisting of ##STR1## --halogen, --hydrogen, or a --nitro group, R' being a C.sub.1 to C.sub.10 alkyl, cycloalkyl, aralkyl, alkaryl or aryl group, preferably said zinc salt has the formula: ##STR2##

Title
Flame retardant flexible urethane foams
Application Number
632940
Publication Number
4018724
Application Date
March 29, 1976
Publication Date
April 19, 1977
Inventor
David Stanley Cobbledick
Kent
OH, US
Assignee
The General Tire & Rubber Company
OH, US
IPC
C08J 9/00
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