The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 13, 2018
Filed:
May. 23, 2014
Dyflex Corporation, Shinjuku-ku, Tokyo, JP;
Kenji Yoshino, Tokyo, JP;
Yoichi Kai, Tokyo, JP;
DYFLEX CORPORATION, Tokyo, JP;
Abstract
An asphalt-urethane composition is disclosed which does not contain any of specific chemical substances, has adhesiveness to mineral-surfaced asphalt roofing and an asphalt groundwork, exhibits performance in temporary waterproofing with respect to the asphalt groundwork, performs adhesion of sand to the surface layer of the mineral-surfaced asphalt roofing and adjustment of irregularity, has adhesiveness of integrating with a urethane waterproof layer applied thereon, has excellent workability, construction efficiency, water resistance, and hot water resistance, has high strength and elasticity, has low temperature sensitivity, and has excellent finish properties. The asphalt-urethane composition can contain at least a component (A) obtained by adding an MDI prepolymer generated by reacting polyolefin polyol having two or more hydroxyl groups, short-chain polyhydric alcohol, and a monomer of MDI, a monomer of MDI, and a solvent a; and a component (B) including asphalt, a catalyst, and a solvent b.