Receptacles – Container attachment or adjunct – Pressure relief means
Patent
1975-09-24
1976-10-19
Ziegler, J.
Receptacles
Container attachment or adjunct
Pressure relief means
260 4AR, 260887, 260894, B23K 1106
Patent
active
039866297
ABSTRACT:
A sealant composition for sealing a can end comprises a mixture of about 15-30 percent by weight of a hydrocarbon resin melting in the range of about 85.degree.-125.degree. C and comprising 100 weight parts of at least one of natural and synthetic rubber and 30 to 120 weight parts of a hydrogenated hydrocarbon resin tackifier prepared by polymerizing a cracked petroleum fraction boiling between -10.degree. and 280.degree. C and containing unsaturated hydrocarbons at least 50 weight percent of which is at least one of aromatic olefins, cyclic olefins and cyclic diolefins, and hydrogenating the resultant polymer to a hydrogenation rate of at least 40 percent; about 1-8 percent by weight of stearic acid; about 0.1-1 percent by weight of butylated hydroxy toluene; about 0.1-1 percent by weight of polyparadinitrosobenzene; about 20-40 percent by weight of paraffin wax; about 1-5 percent by weight of zinc oxide; about 0.25-1 percent by weight of lamp black; about 5-15 percent by weight of titanium dioxide; about 10-30 percent by weight of polyisobutylene; and about 10-20 percent by weight of at least one of butyl rubber, styrene-butadiene rubber and styrene-isoprene rubber.
REFERENCES:
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patent: 2955103 (1960-10-01), Baldwin et al.
patent: 3369568 (1968-02-01), Davis et al.
patent: 3396134 (1968-08-01), Cox
patent: 3409567 (1968-11-01), Dinsdale et al.
patent: 3554920 (1971-01-01), Arakawa et al.
The Southland Corporation
Ziegler J.
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