Heat-resistant nonwoven fabrics

Details Heat-resistant nonwoven fabrics Heat-resistant nonwoven fabrics

1991-05-06

1992-09-01

Lusignan, Michael

Paper making and fiber liberation

Processes and products

With coating after drying

162156, 1621646, 1621647, 428285, 524494, 524538, 5253299, 528302, D21H 1100

Patent

active

051435829

ABSTRACT:
A method for making a heat resistant nonwoven fabric is provided. A formaldehyde-free binder composition containing a carboxy group, or a carboxylic anhydride, or salts of a carboxy group; and a .beta.-hydroxyalkyl amide contacts a nonwoven fabric containing heat-resistant fibers, and heating the binder composition is effected.

REFERENCES:
patent: 3867348 (1975-02-01), Hirschmann
patent: 4076917 (1978-02-01), Switt et al.
patent: 4455342 (1984-06-01), Fink et al.
patent: 4609431 (1986-09-01), Grose et al.
patent: 4925528 (1990-05-01), Tse et al.
patent: 4999239 (1991-03-01), Iacoviello et al.

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