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US 4,374,946 AGranted
Concrete joint sealant
AssigneeAOI Chemical Inc.
InventorsYoshifumi Takemura, Hirokazu Miyazaki
Life of this patent
Estimating the term…
Abstract
A concrete joint sealant comprising tall pitch, atactic polypropylene, fresh rubber and aliphatic hydrocarbon resin.
Claims7
A sealant for concrete joints comprising tall pitch, atactic polypropylene, non-reclaimed rubber and 4.8 to 45 weight percent of aliphatic hydrocarbon resin.
Dependencies are inferred from the claim text.