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:
Dec. 23, 1986
Filed:
Aug. 08, 1985
Ralph Baker, Buxton, GB;
Eric T Smith, New Mills, GB;
Vaughan T Dickinson, Whitworth, GB;
Noel C McKenzie, Rochdale, GB;
Brian Hargreaves, Flixton, GB;
Ferodo Ltd., Manchester, GB;
T&N Research Ltd., Manchester, GB;
Abstract
In a method of making asbestos-free friction facing material in the form of a water-laid sheet of cellulosic fibres, in which are distributed friction-imparting particles and particles of friction-modifier, the sheet containing a thermosetting phenolic resin which after curing binds the ingredients firmly together, the thermosetting phenolic resin is included in emulsified form in the aqueous suspension of ingredients from which the water-laid sheet is prepared. This leads to a product of more consistent friction performance than is obtained by post-sheeting impregnation with thermosetting phenolic resin.