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:
Aug. 23, 1977
Filed:
Jan. 12, 1976
Applicant:
Inventors:
Assignee:
Ciba-Geigy Corporation, Ardsley, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
B05D / ; B05D / ;
U.S. Cl.
CPC ...
427373 ; 427386 ; 4273 / ; 4274 / ; 4273 / ; 260 / ; 260 7841 ;
Abstract
A process for reinforcing nonwovens by the foaming process accompanied by the use of binding agents and foaming assistants is provided. The nonwovens are treated with preparations which contain at least one binding agent and as foaming agents and a reactive surfactant which is converted into the irreversibly insoluble state at elevated temperature and thereby loses its surface activity. The treated nonwovens are then subjected to a heat treatment, time-consuming washing and rinsing procedures of the treated materials are not necessary.