US4932156A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of controlling the color of mulch
Assignee: BASF Corp
•
Filing: 1988-11-09
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Granted: 1990-06-12
•
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 14:40
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.
References Cited (Backward Citations)
US1043582A
Cited
US1882377A
Cited
US2122895A
Cited
US2623027A
Cited
US2772137A
Cited
US3036015A
Cited
US2964562A
Cited
US3685959A
Cited
US3775147A
Cited
US4232480A
Cited
US4340179A
Cited
US4530778A
Cited
US4716060A
Cited
US4788790A
Cited
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 |