| 摘要 |
The resistance to internal charring of molded styrene-butadiene latex foam rubber when exposed to a lit cigarette is improved by incorporating from about 10 to 30 parts by dry weight, per hundred parts by dry weight of latex of a compound selected from the group consisting of an organic phosphate of the formula <IMAGE> wherein R is a C6-12 alkyl radical or a phenyl radical, which is unsubstituted or substituted by a C1-4 alkyl radical, butyl benzyl phthalate, and a mixture thereof. |
