Method of autogenously bonding a nonwoven polyamide web

Details Method of autogenously bonding a nonwoven polyamide web Method of autogenously bonding a nonwoven polyamide web

1977-09-01

1979-09-18

Goolkasian, John T.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

81155, 81301, 156305, 156306, 156167, 252372, 428288, 428365, 428289, 428374, 428296, 428395, B29H 904, C09J 500

Patent

active

041681959

ABSTRACT:
The method of autogenously bonding a nonwoven web made from polyamide filaments wherein the filaments contain 0.1 to 20 weight percent of an activating agent and sufficient moisture that the molar ratio of water to activating agent in the filaments is above the bonding limit, wherein the web is heated sufficiently to drive off enough water to reduce the molar ratio of water to agent to a value below the bonding limit and pressed to autogenously bond the filaments in the web. After pressing, the activating agent is desorbed from the web.

REFERENCES:
patent: 3236587 (1966-02-01), Genereux
patent: 3516900 (1970-06-01), Mallonee et al.
patent: 3647591 (1972-03-01), Morris
patent: 3773089 (1973-11-01), Chudgar
patent: 3824146 (1974-07-01), Ellis
patent: 3853659 (1974-12-01), Rhodes

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