US5688498A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and composition for coating wound or protecting animal skin
Assignee: West Agro Inc
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Filing: 1996-05-09
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Granted: 1997-11-18
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Expires: 2016-05-09
Abstract
Abstract Solutions of polyether polyurethane with benzoin gum in tetrahydrafuran applied to animal skin provide dry films that are elastic, vapor permeable, water proof, dirt proof, insect proof, aerobic bacteriostatic and adhere well under environmental conditions. Apparent application viscosity can be adjusted as required for specific needs.
Inventors
- 👤 Carl A. Huprich
- 👤 Leo L. Timms
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:25
CPC Classifications
A; A61; A61K; A61K9/00; A61K9/0012; A61K9/0041; A61L; A61L26/00; A61L26/0009; A61L26/0019
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
31 words
A solution of polyether polyurethane in tetrahydrofuran containing benzoin gum wherein said solution upon drying to an elastic film has improved adhesion as compared to the same solution without benzoin gum.
Claim 2
Dependent Claim
31 words
A solution of polyether polyurethane in tetrahydrofuran containing benzoin gum wherein said solution upon drying to an elastic film has improved adhesion as compared to the same solution without benzoin gum.
Claim 3
Dependent Claim
17 words
A solution according to claim 1 wherein the benzoin gum is present in an amount of 5%.
Claim 4
Dependent Claim
24 words
A solution according to claim 1 comprising: 100 parts of the tetrahydrofuran; 10 parts of the polyether polyurethane; 5 parts of the benzoin gum.
Claim 5
Dependent Claim
29 words
A process for applying the solution of claim 1, wherein the amount of benzoin is varied to allow for more effective coverage of the desired surface area as necessary.
Claim 6
Dependent Claim
24 words
A process for protecting animal skin comprising applying a solution of claim 1 comprising polyether polyurethane, tetrahydrofuran, and benzoin gum to the animal skin.
Claim 7
Dependent Claim
28 words
A process according to claim 5 wherein the solution is applied to the skin using a method selected from the group consisting of dipping, spraying, spreading, and wiping.
References Cited (Backward Citations)
US5192536A
Cited
US5413780A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-11-17 | 2001-05-19 | 2001-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-11-17 | 2005-05-19 | 2005-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-11-17 | 2009-05-19 | 2009-11-18 | $7700.00 | Window Closed / Lapsed |