System for applying binding agents to fibrous webs

Details System for applying binding agents to fibrous webs System for applying binding agents to fibrous webs

1980-12-19

1982-09-07

Weston, Caleb

Adhesive bonding and miscellaneous chemical manufacture

Surface bonding means and/or assembly means therefor

With casting, plastic molding, or extruding means

118410, 15624421, 156285, 264518, 425113, 425516, B29D 2700, B29J 500

Patent

active

043482511

ABSTRACT:
A method and system for applying a foamed binding agent to a fibrous web is disclosed. The invention is characterized by the use of an extruder having an upper lip extending 1/16 to 1/4 inch beyond the lower lip, and by the drawing of a vacuum beneath the applied foam, said characteristics being critical to the formation of a uniform foam layer atop the web. A second, more substantial vacuum is then applied beneath the web to essentially completely draw the binding agent into the web thereby providing substantial inter-fiber bonding.

REFERENCES:
patent: 3042573 (1962-07-01), Roberts
patent: 3331728 (1967-07-01), Lane
patent: 3348989 (1967-10-01), Roberts
patent: 3600750 (1971-08-01), Stroszynski
patent: 3609810 (1971-10-01), Coghill
patent: 4159355 (1979-06-01), Kaufmen
patent: 4292271 (1981-09-01), Buob et al.

Affiliated with

Also associated with

Rating

System for applying binding agents to fibrous webs does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with System for applying binding agents to fibrous webs, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System for applying binding agents to fibrous webs will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1341097