Patent US4932156A successfully refreshed from Google Patents.
US4932156A
Expired / Lapsed
US
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Method of controlling the color of mulch
Assignee: BASF Corp
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Filing: 1988-11-09
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Granted: 1990-06-12
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Expires: 2008-11-09
Abstract
Abstract A method for controlling the color of mulch for retarding the fading of the color of the mulch and/or restoring the color of mulch that has faded due to prolonged exposure to actinic light and ambient weather conditions by applying a brown color-control solution to the surface of the mulch. The resulting mulch product has a long-lasting fresh, new appearance.
Inventors
- 👤 Roger C. Underwood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 15:25
CPC Classifications
A; A01; A01G; A01G13/00; A01G13/30; A01G13/35; A01G2013/004
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
74 words
A method for revitalizing the natural color of vegetable fiber mulch, after said mulch has been incorporated as part of a landscape and has faded due to actinic light and ambient weather conditions, said method comprises spraying on said faded mulch a brown color-control composition which resists the action of actinic light and ambient weather conditions, said color-control composition being in a liquid form and simulating the natural brown color of vegetable fiber mulch.
Claim 2
Independent Claim
74 words
A method for revitalizing the natural color of vegetable fiber mulch, after said mulch has been incorporated as part of a landscape and has faded due to actinic light and ambient weather conditions, said method comprises spraying on said faded mulch a brown color-control composition which resists the action of actinic light and ambient weather conditions, said color-control composition being in a liquid form and simulating the natural brown color of vegetable fiber mulch.
Claim 3
Dependent Claim
31 words
A method according to claim 1 wherein said color-control composition is non-toxic to vegetation and comprises: (a) at least one colorant; (b) a binding additive; (c) a glycol; and (d) water.
Claim 4
Dependent Claim
75 words
A method according to claim 2 wherein said color-control composition comprises, on a volume percentage basis: (a) about 48% of said colorant, said colorant comprising, on a volume percentage basis, about 27% of a brown azo dye, about 65% of an orange pigment, about 4% of a blue pigment and about 4% of a black pigment; (b) about 31% of said binder additive; (c) about 2.5% of said glycol; and (d) about 18% of water.
Claim 5
Dependent Claim
15 words
A method according to claim 2 wherein said color-control composition further comprises an anti-foaming agent.
Claim 6
Dependent Claim
27 words
A method according to claim 2 where the glycol is selected from the group consisting of propylene glycol, dipropylene glycol, an ethylene glycol ether, and ethylene glycol.
Claim 7
Dependent Claim
13 words
A method according to claim 5 in which the glycol is ethylene glycol.
Claim 8
Dependent Claim
14 words
A method according to claim 1 wherein said binder additive comprises a synthetic resin.
Claim 9
Dependent Claim
14 words
A method according to claim 7 wherein said synthetic resin comprises carboxylated acrylate polymer.
Claim 10
Dependent Claim
43 words
A brown, vegetable fiber mulch incorporated on a landscape and having a revitalized color obtained by a process comprising spraying a brown color-control composition on said mulch while said mulch was disposed on said landscape, said process being in accordance with claim 1.
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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) | 1993-06-11 | 1993-12-11 | 1994-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-06-11 | 1997-12-11 | 1998-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-06-11 | 2001-12-11 | 2002-06-12 | $7700.00 | Window Closed / Lapsed |