Chemistry of carbon compounds – Miscellaneous organic carbon compounds
Patent
1974-05-09
1976-11-23
Briggs, Sr., Wilbert J.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
260 25P, 260 25H, 260 23XA, 260 318M, 260 318DR, 260 318W, 260 4249, 260891, 260 4575P, 260DIG24, C08K 326, C08K 322, C08J 936
Patent
active
039936074
ABSTRACT:
The propensity of poly(vinyl chloride) homopolymer and poly(vinyl chloride) copolymer resin-containing compositions including poly(vinyl chloride) modified rubbers to smoke on exposure to fire is greatly diminished by the addition of effective amounts of ferric oxide. Amounts in excess of about 5%, based on the weight of the poly(vinyl chloride) resin or poly(vinyl chloride) modified resin or rubber, act as an effective smoke suppressant. Additionally, the combination of ferric oxide with hydrated metallic compounds results in poly(vinyl chloride) homopolymer and copolymer-containing compositions having both low smoke and low flame spread characteristics.
REFERENCES:
patent: 2840534 (1958-06-01), Clark et al.
patent: 2853400 (1958-09-01), Ahlbin
patent: 3172852 (1965-03-01), Lobos
patent: 3418267 (1968-12-01), Busse
patent: 3468839 (1969-09-01), Millane
patent: 3639298 (1972-02-01), Lister et al.
patent: 3697456 (1972-10-01), Pitts et al.
patent: 3699041 (1972-10-01), Sanderford et al.
Armstrong Cork Company
Briggs Sr. Wilbert J.
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