Title: Reusable zeolite water softener for clothes washing

Abstract: Washing of clothes is effected in the presence of an insoluble substrate having bonded thereto an insoluble inorganic cation-exchanger.

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Inventors: Leonard, Ralph Spencer (Berkeley Heights, NJ, US)

Application Number: 537223
Filing Date: 1974-12-30
Publication_date: 1978-01-03
Assignee: Colgate-Palmolive (New York, NY)
Primary Class(es): 8/137 210/679, 210/687, 252/179, 428/317.9, 428/331, 510/356, 510/532, 521/122, 521/174
Other Classes:
US Patent Ref:

3033641	May, 1962	Thomas	210/38.
3266973	Aug, 1966	Crowley	210/502.
3382141	May, 1968	Arledter et al.	162/156.
3424545	Jan, 1969	Bauman	8/137.
3434864	Mar, 1969	Haden et al.	117/152.
3545622	Dec, 1970	Sakhnovsky et al.	210/502.
3686025	Aug, 1972	Morton	117/140.
3687297	Aug, 1972	Kuhn et al.	210/502.
3755222	Aug, 1973	Gruber et al.	260/DIG.
3870145	Mar, 1975	Mizuno	252/8.
3929678	Dec, 1975	Laughlin et al.	252/526.
3985669	Oct, 1976	Krummel et al.	252/89.
4025427	May, 1974	Loeb	210/38.

Other Refs: 813,5811,542,7542,055,4231,143,6347,406,306416,430

Apr, 1974	BE.
Sep, 1968	FR
May, 1972	DT.
Feb, 1963	DT.
Sep, 1974	NL.
Mar, 1933	UK

Primary Examiner: Dixon, Jr., William R.
Assistant Examiner:
Attorney: