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:
Mar. 07, 1989
Filed:
Dec. 02, 1987
Applicant:
Inventors:
Sadao Kumasaka, Tokyo, JP;
Koretoshi Katsuki, Tokyo, JP;
Assignee:
Toyo Chemical Industry Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L / ;
U.S. Cl.
CPC ...
1062844 ; 106277 ; 521101 ; 521110 ; 521122 ;
Abstract
A method of manufacturing asphalt foam comprising the steps of preparing polyether polyol containing 15 mole % or more of ethylene oxide, preparing urethane prepolymer by making the polyether polyol react with organic isocyanate, and obtaining asphalt foam by mixing the urethane prepolymer with (i) a silicone oil and (ii) an aqueous emulsion of asphalt to obtain an asphalt foam having a five cell structure and excellent water repellancy.
Kumasaka, Sadao. (1989). Manufacturing method of asphalt foam (U.S. Patent No. 4810298). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4810298
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile