Concrete joint sealant
AssigneeAOI Chemical Inc.
InventorKiyozo Shiomoto
Life of this patent
Estimating the term…
Abstract
The present invention relates to a concrete joint sealant which is composed of a coal tar mainly consisting of a distillate obtained at up to 350.degree. C., vinyl chloride resin, coal pitch and a mixture of plasticizers, i.e., dioctyl phthalate and dioctyl adipate.
Claims7
A concrete joint sealant composed of 10-40 weight % coal tar mainly consisting of a distillate boiling at up to 350.degree. C.;
- 2-25 weight % vinyl chloride resin;
- 5-15 weight % coal pitch;
- and 20-40 weight % of a mixture of dioctyl phthalate and dioctyl adipate as plasticizers.
A process for manufacturing a concrete joint sealant comprising compounding a 10-40 weight % coal tar mainly composed of a distillate boiling up t 350.degree. C., 2-25 weight % vinyl chloride resin, 5-15% weight % coal pitch and 20-40 weight % of a mixture of dioctyl phthalate and dioctyl adipate.
Dependencies are inferred from the claim text.