Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1982-07-19
1984-09-18
Gallagher, John J.
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
138144, 138DIG1, 138DIG6, 156187, 156192, 156195, 156310, 156334, 156338, 242 702, 242 723, 427220, 428420, C09J 502
Patent
active
044722311
ABSTRACT:
An anticorrosion and high shear resistant pipewrap system is described wherein a pipe surface is first coated with a primer comprised of natural rubber, resins, and a metal oxide activator dispersed in an organic solvent. The primer-coated pipe is then overlaid with an adhesive-coated polyolefin tape, the adhesive comprising a butyl-based rubber, tackifying agent and a cross-linking agent, p-quinone dioxime. The cross linking agent functions in the presence of an organo-titanate-treated metal oxide, being a catalyst such as lead dioxide, or the like, that results in high rates of cross linking in both the primer coating, the adhesive coating and the primer/adhesive interface zone. Minimal creep of the described anti-corrosion protective coating is noted in high shear stress environments.
REFERENCES:
patent: 2161036 (1939-06-01), Gremmel et al.
patent: 3002854 (1961-10-01), Brill
patent: 3063891 (1962-11-01), Boylan et al.
patent: 3160595 (1964-12-01), Hardman et al.
patent: 4268334 (1981-05-01), Harris et al.
Cantor Frederick R.
Gallagher John J.
The Kendall Company
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