Laundry dryer sheet

Details Laundry dryer sheet Laundry dryer sheet

1990-10-01

1992-02-04

Lusigman, Michael

Coating processes

With post-treatment of coating or coating material

Solid treating member or material contacts coating

427394, 252 88, B05D 312

Patent

active

050858920

ABSTRACT:
Laundry dryer sheets having a good loading of surfactant are prepared by (1) coating an absorbent flexible substrate with a molten tert-amine oxide wherein the molecules correspond to the formula RR'R"NO.nH.sub.2 O in which R is a primary alkyl group containing 9-24 carbons; R' is methyl, ethyl, or 2-hydroxyethyl; R" is independently selected from methyl, ethyl, 2-hydroxyethyl, and primary alkyl groups containing 8-24 carbons; and n is 0, 1, or 2, at least some of the molecules being dihydrate molecules, and (2) solidifying the amine oxide.

REFERENCES:
patent: 3686025 (1972-08-01), Morton et al.
patent: 3962100 (1976-06-01), Murphy et al.
patent: 4153561 (1979-05-01), Humuller et al.
patent: 4310426 (1982-01-01), Smeltz
patent: 4488974 (1984-12-01), Keil et al.
patent: 4885107 (1989-12-01), Wetzel

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