Patent US3970575A successfully refreshed from Google Patents.
US3970575A
Expired / Lapsed
US
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Liquid peroxygen bleach
Assignee: PII ACQUISITIONS Inc A CORP OF
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Filing: 1974-02-21
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Granted: 1976-07-20
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Expires: 1994-02-21
Abstract
Abstract Composition for a clear blue colored, stabilized liquid peroxygen bleach, suitable for household laundry use on all fabrics, whose coloring dye is rendered non-substantive to natural or synthetic fibers by the inclusion of a non-ionic surfactant as an anti-dyeing agent having an HLB value within a predetermined range.
Inventors
- 👤 John H. Barrett, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:51
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/39; C11D3/3947; C11D3/40
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
156 words
An acidic stabilized aqueous bleach product consisting essentially of about: a. 1.0 to 8.0 percent by weight stabilized hydrogen peroxide; b. 0.5 to 10 percent by weight of a water soluble non-ionic surfactant which is a polyethylene oxide condensate having an HLB value from about 10 to 15, said condensate being of polyethylene oxide and a member from the group consisting of alkyl phenols having alkyl groups of 6 to 12 carbon atoms, secondary alcohols having from 8 to 22 carbons, linear primary alcohols having from 8 to 22 carbon atoms, polyoxypropylene glycols having molecular weights of at least 900, fatty alcohols having from 8 to 22 carbons, and fatty acid partial esters of polyhydric alcohols having at least 4 moles of polyoxyethylene and derived from fatty acids having from 8 to 28 carbons; and c. 0.0002 to 0.002 percent by weight color stable phthalocyanine blue dye pigment powder, said product having a clear blue appearance.
Claim 2
Dependent Claim
156 words
An acidic stabilized aqueous bleach product consisting essentially of about: a. 1.0 to 8.0 percent by weight stabilized hydrogen peroxide; b. 0.5 to 10 percent by weight of a water soluble non-ionic surfactant which is a polyethylene oxide condensate having an HLB value from about 10 to 15, said condensate being of polyethylene oxide and a member from the group consisting of alkyl phenols having alkyl groups of 6 to 12 carbon atoms, secondary alcohols having from 8 to 22 carbons, linear primary alcohols having from 8 to 22 carbon atoms, polyoxypropylene glycols having molecular weights of at least 900, fatty alcohols having from 8 to 22 carbons, and fatty acid partial esters of polyhydric alcohols having at least 4 moles of polyoxyethylene and derived from fatty acids having from 8 to 28 carbons; and c. 0.0002 to 0.002 percent by weight color stable phthalocyanine blue dye pigment powder, said product having a clear blue appearance.
Claim 3
Dependent Claim
35 words
Product according to claim 1 in which said surfactant is a polyethylene oxide condensate of alkyl phenols having alkyl groups with 6 to 12 carbon atoms and whose HLB values are about 10.5 to 15.0.
Claim 4
Dependent Claim
32 words
Product according to claim 1 in which said surfactant is a polyethylene oxide condensate of secondary alcohols having from 8 to 22 carbons and whose HLB values are about 12 to 15.
Claim 5
Dependent Claim
32 words
Product according to claim 1 in which said surfactant consists of polyethylene oxide ethers of fatty alcohols having from 8 to 22 carbons and whose HLB values are from 12 to 15.
Claim 6
Dependent Claim
15 words
Product according to claim 1 in which said HLB value is about 13 to 14.
Claim 7
Dependent Claim
44 words
Product according to claim 2 in which said essential components are about: 6.0 percent hydrogen peroxide 1.0 percent nonylphenol polyethylene oxide condensate surfactant having 9.5 moles of ethylene oxide and an HLB value of about 13.9, and about 0.0005 percent phthalocyanine blue dye powder.
Claim 8
Dependent Claim
34 words
Product according to claim 3 in which said surfactant is a polyethylene oxide condensate of linear primary alcohols having from 8 to 22 carbon atoms and whose HLB values are about 11 to 14.
Claim 9
Dependent Claim
33 words
Product according to claim 3 in which said surfactant is a polyethylene oxide condensate of polyoxypropylene glycols having molecular weights of at least 900 and whose HLB values are about 10 to 15.
Claim 10
Dependent Claim
48 words
Product according to claim 4 in which said surfactant consists of polyethylene oxide condensates of fatty acid partial esters of polyhydric alcohols, having more than 4 moles of polyoxyethylene and derived from fatty acids having 8 to 28 carbons and whose HLB value is from 10 to 15.
References Cited (Backward Citations)
US3058916A
Cited
US3577347A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-07-20 | 1980-01-19 | 1980-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-07-20 | 1984-01-19 | 1984-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-07-20 | 1988-01-19 | 1988-07-20 | $7700.00 | Window Closed / Lapsed |