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:
Jan. 29, 1991
Filed:
Feb. 23, 1989
Applicant:
Inventors:
Assignee:
Teijin Limited, Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08J / ; C08L / ;
U.S. Cl.
CPC ...
524 12 ; 525432 ;
Abstract
A flame resistant staple fiber blend, useful for flame-resistant clothing, comprising 80 to 97 weight parts of m-aramide polymer staple fibers (A) with a small thermal shrinkage stress of 130 mg/d or less at 350.degree. C., 3 to 20 weight parts of p-aramide copolymer staple fibers (B) with a higher flame resistance than that of the m-aramide fiber (A), and optionally, 240 weight parts or less of non-fusible staple fibers (C) with a lower thermal shrinkage stress than that of the staple fiber (A).