| abstract |
RESINOUS ENCLOSURE MEMBERS SURFACE SULFONATED TO A DEGREE SUCH THAT FROM ABOUT 0.015 TO ABOUT 50.0 MILLIGRAMS OF SULFUR TRIOXIDE EQUIVALENTS RESIDE ON A SQUARE CENTIMETER OF SURFACE THEREOF EFFECTIVELY CONTAIN HYDROCARBONS AND OTHER ORGANIC MATERIALS. THE SULFONATED ENCLOSURE MEMBERS ARE RENDERED SUBSTANTIALLY IMPERVIOUS TO THE PENETRATION OF VARIOUS SOLVENTS AND VAPORS BY THIS DEGREE OF SURFACE SULFONATION. AS A RESULT OF SUCH TREATMENT, THESE ENCLOSURE MEMBERS ARE USEFUL TO HOLD, RETAIN, OR TRANSPORT HYDROCARBON SOLVENTS, PERFUMES, FUELS, ETC., AND THUS CAN BE USED AS GASOLINE TANKS, PERFUME BOTTLES, PLASTIC HOSES, INDUSTRIAL CONTAINERS, AND THE LIKE. |