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. 20, 2001
Filed:
Jan. 29, 1999
Takeda Chemical Industries, Ltd., Osaka, JP;
Abstract
Low resilience urethane foam having excellent low resilience at room temperature and having capability of suppressing increase of hardness even at low temperature. The low resilience urethane foam, produced by reaction of urethane foam compositions comprising polyol (a), polyisocyanate (b), catalyst (c) and blowing agent (d), has at least one glass transition point in each of a temperature range of −70° C. to −20°C. and a temperature range of 0° C. to 60° C. Where the glass transition point is expressed as a tan &dgr; peak obtained when measurement on dynamic viscoelasticity of the low resilience urethane foam is carried out at a frequency of 10 herz, at least one of the tan &dgr; peak(s) at the temperature range of −70° C. to −20° C. is 0.15 or more and at least one of the tan &dgr; peak(s) at the temperature range of 0° C. to 60° C. is 0.3 or more.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile