Patent US3291634A successfully refreshed from Google Patents.
US3291634A
Expired / Lapsed
US
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Method of rendering articles water repellent
Assignee: GOVERNOR OF OSAKA FU
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Filing: 1963-09-13
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Granted: 1966-12-13
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Expires: 1983-09-13
Abstract
No abstract record available.
Inventors
- 👤 Wada Nobuaki
- 👤 Nakao Kazumune
- 👤 Tsuji Toshiya
- 👤 Shibata Mitsugi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 03:47
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/643
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
135 words
A METHOD OF RENDERING A ARTICLE WATER REPELLENT COMPRISING WETTING THE ARTICLE TO BE TREATED WITH AN AQUEOUS EMULSION CONSISTING OF FROM 1 TO 10 WEIGHT PERCENT OF A POLYSILOXANE HAVING A METHYLHYDROGENSILOXANE UNIT IN THE ORDER OF AT LEAST 50 WEIGHT PERCENT, AND OF A METALLIC SALT OF AN ALIPHATIC ACID SELECTED FROM THE GROUP CONSISTING OF SODIUM ACETATE, POTASSIUM ACETATE, MAGNESIUM ACETATE, CALCIUM ACETATE, STRONTIUM ACETATE, BARIUM ACETATE, CADMINUM ACETATE, CERIUM ACETATE, TIN ACETATE, LEAD ACETATE, MAGNESE ACETATE, IRON ACETATE, NICKEL ACETATE, ZINC ACETATE, SODIUM FORMATE, ZINC FORMATE AND LITHIUM OXALATE, SAID METALLIC SALT BEING DISSOLVED THERE-IN IN AN AMOUNT AT LEAST EQUIVALENT BY METALLIC WEIGHT TO THE METHYDROGENSILOXANE UNIT CONTAINED IN SAID POLYSILOANE, AND DRYING THE WETTED ARTICLE AT ROOM TEMPRERATURE TO PROVIDE SAID ARTICLE WITH A WATER REPELLENCY RESISTANT TO WASHING.
Claim 2
Independent Claim
135 words
A METHOD OF RENDERING A ARTICLE WATER REPELLENT COMPRISING WETTING THE ARTICLE TO BE TREATED WITH AN AQUEOUS EMULSION CONSISTING OF FROM 1 TO 10 WEIGHT PERCENT OF A POLYSILOXANE HAVING A METHYLHYDROGENSILOXANE UNIT IN THE ORDER OF AT LEAST 50 WEIGHT PERCENT, AND OF A METALLIC SALT OF AN ALIPHATIC ACID SELECTED FROM THE GROUP CONSISTING OF SODIUM ACETATE, POTASSIUM ACETATE, MAGNESIUM ACETATE, CALCIUM ACETATE, STRONTIUM ACETATE, BARIUM ACETATE, CADMINUM ACETATE, CERIUM ACETATE, TIN ACETATE, LEAD ACETATE, MAGNESE ACETATE, IRON ACETATE, NICKEL ACETATE, ZINC ACETATE, SODIUM FORMATE, ZINC FORMATE AND LITHIUM OXALATE, SAID METALLIC SALT BEING DISSOLVED THERE-IN IN AN AMOUNT AT LEAST EQUIVALENT BY METALLIC WEIGHT TO THE METHYDROGENSILOXANE UNIT CONTAINED IN SAID POLYSILOANE, AND DRYING THE WETTED ARTICLE AT ROOM TEMPRERATURE TO PROVIDE SAID ARTICLE WITH A WATER REPELLENCY RESISTANT TO WASHING.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-12 | 1970-06-13 | 1970-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-12 | 1974-06-13 | 1974-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-12 | 1978-06-13 | 1978-12-13 | $7700.00 | Window Closed / Lapsed |