Flushable binder system for pre-moistened wipers wherein an adhe

Details Flushable binder system for pre-moistened wipers wherein an adhe Flushable binder system for pre-moistened wipers wherein an adhe

1979-04-13

1982-01-05

Cannon, James C.

Stock material or miscellaneous articles

Sheet including cover or casing

Noninterengaged fibered material encased

1510493, 15209R, 206205, 206812, 428 76, 428288, 428290, 428913, B32B 710, B32B 2308, B32B 2314

Patent

active

043094694

ABSTRACT:
A three component adhesive is used for a nonwoven web in combination with a water based lotion containing borate ions. The adhesively bonded web has substantial tensile strength while saturated with the lotion for extended periods of time (e.g., months) and is water dispersible when exposed to a large volume of water. The three component adhesive system provides the tensile strength for the web during prolonged exposure to the water based lotion even under extreme temperature conditions. The components of the adhesive composition applied to the web are polyvinyl alcohol, a non-self-cross-linking, thermosetting, polymer emulsion and a self-cross-linking thermosetting polymer emulsion. An organic acid capable of complexing with borate, such as .alpha.-hydroxy acids or o-aromatic hydroxy acids, when in combination with borate ions in the lotion produces a synergistic effect upon the PVA adhesive in the web.

REFERENCES:
patent: 3808165 (1974-04-01), Dushane
patent: 3846158 (1974-11-01), Vasilyadis
patent: 4117187 (1978-09-01), Adams et al.

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