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. 05, 1993
Filed:
May. 30, 1991
Applicant:
Inventors:
Martin H Stacey, Northwich, GB;
Michael D Taylor, Great Barrow, GB;
Assignee:
Imperial Chemical Industries PLC, London, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29B / ; B29C / ; B29C / ;
U.S. Cl.
CPC ...
264 14 ; 264 44 ; 264204 ; 26421111 ; 26421112 ;
Abstract
A porous low density inorganic oxide fibre of improved strength and flexibility has at least 25% of the porosity provided by axially aligned pores. The fibres are produced by spinning into fibres a spinning solution in which is incorporated a non-ionic surface active agent having a cloud point in the solution above the fibre spinning temperature and less than 20.degree. C. above the fibre spinning temperature, preferably within the range of 5.degree.-15.degree. C. above the fibre spinning temperature. The fibre may be an alumina fibre which can be free from silica and is useful as reinforcement in MMCs.