Chemistry of carbon compounds – Miscellaneous organic carbon compounds
Patent
1974-12-16
1976-03-23
Turer, Richard B.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
260 23XA, 260 291SB, 260 306SB, 260 308R, 260 318S, C08J 900
Patent
active
039459551
ABSTRACT:
Polyvinylchloride foam compositions are prepared by frothing. To prepare the compositions for frothing, the silicone surfactant frothing agents present in the composition are extended with oleophilic frothing aids which do not significantly detract from the hydrophobic and flame retardant properties of the foam. Further, the frothing aids may be used to control froth viscosity. From about 5.0 phr to about 10.0 phr of frothing aid is added to from about 2.0 phr to about 4.0 phr of frothing agent present in the composition. Stable, homogeneous mixtures of simple and complex oleophilic organic metallic compounds such as overbased alkaline earth alkyl phenates, lead hexoate, magnesium petroleum sulfonate, metal organophosphonates and metal organothiophosphonates with free acids of simple and complex organic phosphate and phosphite esters; organic nitrogen compounds such as amines and amine salts of sulfonic acids; simple and complex organic borate esters such as 2-ethylhexyl borate, trihexylene glycol biborate, and tricresyl borate are useful as frothing aids.
REFERENCES:
patent: 3061558 (1962-10-01), Alter
patent: 3790510 (1974-02-01), Flannigan
Diamond Shamrock Corporation
Nunn Leslie G.
Turer Richard B.
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