Abstract: A method for reducing leakage of effluent water from a storm sewer system, the method comprising securing a flexible, water-impermeable sleeve to the inlet end of a storm sewer line, extending the sleeve through the interior of storm sewer line, and severing the sleeve at the discharge end of the storm sewer line, wherein the sleeve forms a liner for the storm sewer line.

Abstract: A non-catalytic process converts oligomers of polyarylene polyethers (PAPE) having a mol wt Mn in the range from 1000 to about 10,000 to difunctionalized oligomers so as, in the first instance, to provide a reactive double bond (for example, a vinylbenzyl group) at each end of the PAPE; and, in the second instance to provide a triple bond (benzylethynyl group) at each end of the PAPE. The solubility of intermediate bisphenolates of (i) a dihydric phenol, and of (ii) the PAPE oligomer in particular solvents which allow (a) water of reaction to be removed without being degraded, and (b) essentially complete end-capping of the oligomer chains with vinyl chain ends, are the keys to the novel process. The PAPE most preferably has a repeating unit which is the residuum of two dihydric phenols or thiophenols ("DHP") linked through a C.dbd.O, --S--S--, or --SO.sub.2 - group, or a Si or C atom, and/or ether O, or thioether S atoms.

Abstract: A method for suppressing the occurrence of aging bloom upon green or uncured rubber objects during the manufacture of rubber structures wherein the green rubber object is either purgued of proton donating substances capable of enhancing the aging bloom properties of the green rubber object or the green rubber object is maintained at a temperature below which any proton donating substances contained within the green rubber object are capable of enhancing the process of aging bloom upon the green rubber object.

Abstract: Anionic and cationic exchange materials including membranes are beneficiated by a method involving swelling the ion exchange material in the presence of an electrically neutral Reagent A and then contacting the swollen material with a similarly electrically-neutral Reagent B selected to interact with A forming in situ in the ion exchange pathways of the ion exchange material a chemical substance or substances which ionize the membrane to form bulky multicharge entrapped ions of the same electrical sign as the covalently-bonded ion sites of the membrane material. The entrapped ions are electrostatically retained most tenaciously in the ion exchange channels of the membrane even when extracted with water or solvents and even when the membrane is put under electric stress as when current at high densities pass through the membrane in electrolytic chlorine processes, in dialysis cells, and the like. As compared to existing membranes having a concentration of covalently-bonded ion sites averaging about 0.05 to 0.