Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...
Patent
1996-08-21
1997-11-25
Cain, Edward J.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
At least one aryl ring which is part of a fused or bridged...
524322, 524394, 524415, 524419, 524433, 524495, 524496, C08K 318
Patent
active
056914067
ABSTRACT:
A universal elastomeric compound whose improved features display excellent permeability while simultaneously having above average chlorine compatibility. This improved elastomeric compound comprises a measured quantity of a terpolymer of ethylene-propylene-non-conjugated diene copolymer (i.e. EPDM, e.g. ROYALENE 3180), chlorinated Isobutylene (e.g. Chlorobutyl 1066), furnace or carbon black (e.g., N-550 Black), paraffinic oil (e.g., Sunpar 150 Oil), organofunctional magnesium silicate (e.g., Mistron CB), magnesium oxide (e.g., Maglite D Bar), zinc oxide, stearic acid, tetramethylthiuram disulfide (e.g., TUEX), zinc thiophosphate (e.g., ROYALAC 136), and treated sulfur (e.g., Spider Sulfur). Adding a specified quantity of said ROYALAC 136, TUEX, and Spider Sulfur to the EPDM/butyl compound imparts low taste and odor to water. Additionally, adding a specified quantity of said Mistron CB to ROYALENE 3180 and Chlorobutyl 1066, provides for an elastomeric compound having excellent resistance to chloramines. Because the herein prescribed combination of EPDM, butyl and other disclosed compositions exhibits low gas permeability, a high degree of chlorine compatibility, imparts low taste and odor to water, exhibits good flex characteristics, in addition to yielding extractants below the requirements of ANSI/NSF Standard 61 Health Effects Standard, the compound can be effectively used as an elastomeric barrier (e.g., a diaphragm structure) in water storage and treatment systems, valves, pumps or the like.
REFERENCES:
patent: 3660224 (1972-05-01), Cau
patent: 3806555 (1974-04-01), Kawagoe
patent: 3968185 (1976-07-01), Baldwin et al.
patent: 4026966 (1977-05-01), Baldwin et al.
patent: 4599384 (1986-07-01), Farona et al.
patent: 4754793 (1988-07-01), Mohammed
patent: 4814388 (1989-03-01), Nagai et al.
patent: 4851462 (1989-07-01), Chmiel et al.
patent: 4960829 (1990-10-01), Allen et al.
patent: 4983528 (1991-01-01), Loucks
patent: 5276094 (1994-01-01), Kaszas
patent: 5279606 (1994-01-01), Haber
Lane Joseph A.
Mitchel Julian
Amtrol Inc.
Cain Edward J.
Kaliko Joseph J.
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