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:
Jun. 12, 2001
Filed:
Aug. 27, 1999
Hiroyuki Hanahata, Ohtsu, JP;
Yoshihiko Shimaya, Oumihachiman, JP;
Asahi Kasei Kogyo Kabushiki Kaisha, Osaka, JP;
Abstract
The present invention relates to a continuous shaped article such as a polyurethaneurea fiber and a polyurethaneurea film having a birefringence index (&Dgr;n) of from at least 1.0×10,to 8.0×10,in a nontensile state, a crosslinking density at an elongation of 100% (N100) of at least 5.0×10,/m,, a crosslinking point density at an elongation of 400% (N400) of from 4.0×10,to 3.0×10,/m,, and a crosslinking point density at the time of breakage (Nt) of at least 1.6×10,/m,, wherein the ratio of the crosslinking density at an elongation of 400% to that at an elongation of 100% (N400/N100) is from 0.9 to 1.3, and a process for producing the same. The present invention has made the continuous shaped article show an initial stress, a strength at break and an elongation at break which are sufficiently high, and a small rise in the stress in the medium elongation range.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile