Needle-punch carpet with binder containing alkali-stabilized sil

Details Needle-punch carpet with binder containing alkali-stabilized sil Needle-punch carpet with binder containing alkali-stabilized sil

1980-01-16

1981-10-06

McCamish, Marion

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

4274301, 4274342, 428283, 428288, 428289, 428290, 428331, 428446, D04H 108

Patent

active

042936128

ABSTRACT:
The invention relates to a method for the production of needle-punch carpets with improved properties, in which method use is made, in the chemical bonding of the needle-felt, of alkali-stabilized silicic acid sol in combination with a latex of an organic binder which is conventional in this context. The amount of silicic acid is of the order of magnitude of from 1 to 30 weight % calculated as dry SiO.sub.2 on dry polymer and the particle size may vary between 1 and 100 nm.

REFERENCES:
patent: 2750345 (1956-06-01), Alexander
patent: 3969295 (1976-07-01), Sunden

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