US3858854A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Enzymatic detergent
Assignee: SALVO WALTER ANTHONY DE
•
Filing: 1973-04-03
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Granted: 1975-01-07
•
Expires: 1993-04-03
Abstract
Abstract Granular free-flowing non-dusting product of high enzyme content for use in detergent composition, made by spraying a blend of molten nonionic detergent and enzyme concentrate into cool air to form tiny spherical beads.
Inventors
- 👤 Maung Hla Win
- 👤 Salvo Walter Anthony De
- 👤 Edward Joseph Kenney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:38
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/16; C11D3/38; C11D3/386; C11D3/38672; C11D11/00; C11D11/02; C12; C12N; C12N9/00; C12N9/98
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
196 words
A DETERGENT COMPOSITION CONSISTING ESSENTIALLY OF A MIXTURE OF A. A MAJOR PROPORTION OF A GRANULAR WATER-SOLUBLE DETERGENT SELECTED FROM THE GROUP CONSISTING OF ANIONIC, NONIONIC, AND AMPHOTERIC DETERGENTS, BUILT WITH A WATER-SOLUBLE SALT SELECTED FROM THE GROUP CONSISTING OF ORGANIC AND INORGANIC BUILDER SALTS, THE CONCENTRATIONS OF THE DETERGENT AND THE BUILDER SALT BEING IN THE RANGES OF 0.2 TO 70% AND 30 TO 99.8%, RESPECTIVELY, BASED ON THE WEIGHT OF THE BUILT GRANULAR DETERGENT, AND B. A MINOR PROPORTION OF A FREE-FLOWING SUBSTANTIALLY DUSTFREE MASS OF SUBSTANTIALLY SPHERICAL BEADS CONSISTING ESSENTIALLY OF A WATER DISPERSIBLE SOLID, FUSIBLE, SUBSTANTIALLY ANHYDROUS, NONIONIC DETERGENT BINDER HAVING A MELTING POINT UP TO ABOUT 60*C., HAVING DISPERSED THEREIN AN ENZYME CONCENTRATE CONSISTING ESSENTIALLY OF A PROTEOLYTIC ENZYME, SAID BINDER HAVING A HYDROPHILIC POLYETHYLENE OXIDE CHAIN OF 6 TO 84 ETHYLENE OXIDE UNITS, THE CONCENTRATION OF THE PROTEOLYTIC ENZYME IN TH BEADS BEING SUFFICIENT SO THAT THE BEADS CONTAIN ABOUT 0.1 TO 5 ANSON UNITS PER GRAM, WITH SUBSTANTIALLY ALL OF SAID BEADS PASSING THROUGH A 10 MESH U.S. STANDARD SIEVE SERIES SCREEN AND AT MOST 14.9% OF SAID BEADS PASSING THROUGH A 100 MESH U.S. STANDARD SEIVE SERIES SCREEN.
Claim 2
Dependent Claim
196 words
A DETERGENT COMPOSITION CONSISTING ESSENTIALLY OF A MIXTURE OF A. A MAJOR PROPORTION OF A GRANULAR WATER-SOLUBLE DETERGENT SELECTED FROM THE GROUP CONSISTING OF ANIONIC, NONIONIC, AND AMPHOTERIC DETERGENTS, BUILT WITH A WATER-SOLUBLE SALT SELECTED FROM THE GROUP CONSISTING OF ORGANIC AND INORGANIC BUILDER SALTS, THE CONCENTRATIONS OF THE DETERGENT AND THE BUILDER SALT BEING IN THE RANGES OF 0.2 TO 70% AND 30 TO 99.8%, RESPECTIVELY, BASED ON THE WEIGHT OF THE BUILT GRANULAR DETERGENT, AND B. A MINOR PROPORTION OF A FREE-FLOWING SUBSTANTIALLY DUSTFREE MASS OF SUBSTANTIALLY SPHERICAL BEADS CONSISTING ESSENTIALLY OF A WATER DISPERSIBLE SOLID, FUSIBLE, SUBSTANTIALLY ANHYDROUS, NONIONIC DETERGENT BINDER HAVING A MELTING POINT UP TO ABOUT 60*C., HAVING DISPERSED THEREIN AN ENZYME CONCENTRATE CONSISTING ESSENTIALLY OF A PROTEOLYTIC ENZYME, SAID BINDER HAVING A HYDROPHILIC POLYETHYLENE OXIDE CHAIN OF 6 TO 84 ETHYLENE OXIDE UNITS, THE CONCENTRATION OF THE PROTEOLYTIC ENZYME IN TH BEADS BEING SUFFICIENT SO THAT THE BEADS CONTAIN ABOUT 0.1 TO 5 ANSON UNITS PER GRAM, WITH SUBSTANTIALLY ALL OF SAID BEADS PASSING THROUGH A 10 MESH U.S. STANDARD SIEVE SERIES SCREEN AND AT MOST 14.9% OF SAID BEADS PASSING THROUGH A 100 MESH U.S. STANDARD SEIVE SERIES SCREEN.
Claim 3
Dependent Claim
24 words
A mixture as in claim 1 in which saids beads are below 1 mm. in diameter and of smaller particle size than said granules.
Claim 4
Dependent Claim
36 words
A mixture according to claim 1 in which the granular detergent is in the form of spray-dried hollow granules which, on mechanical handling, may form dust in the air, which dust is substantially free of enzyme.
Claim 5
Dependent Claim
19 words
A mixture as in claim 2 in which substantially all said beads will pass through a 40 mesh screen.
Claim 6
Dependent Claim
29 words
A mixture as in claim 4 in which said beads contain, as binder, a waxy water-soluble polymer of ethylene oxide having a melting point of about 45* to 60*C.
Claim 7
Dependent Claim
33 words
A mixture according to claim 5 in which said polymer is an adduct of an alkyl phenol, wherein the alkyl side chain is of about 8 to 18 carbon atoms, and ethylene oxide.
Claim 8
Dependent Claim
28 words
A mixture according to claim 5 in which said polymer is an adduct of a long chain alkanol of about 12 to 20 carbon atoms, and ethylene oxide.
Claim 9
Dependent Claim
14 words
A mixture according to claim 1 wherein the proteolytic enzyme is a subtilisin enzyme.
Claim 10
Dependent Claim
35 words
A mixture according to claim 1 wherein the proteolytic enzyme is of the serine type produced by culture of the genus bacillus and showing optimum proteolytic activity against hemoglobin at a pH higher than 9.
Claim 11
Dependent Claim
17 words
A mixture according to claim 1 wherein the beads contain about 1/2 to 3% titanium dioxide pigment.
Claim 12
Dependent Claim
14 words
A mixture as in claim 5 in which said polymer is a polyethylene glycol.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-01-06 | 1978-07-08 | 1979-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-06 | 1982-07-08 | 1983-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-06 | 1986-07-08 | 1987-01-07 | $7700.00 | Window Closed / Lapsed |