Patent US5317037A successfully refreshed from Google Patents.
US5317037A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Moldable composition of matter
Assignee: BIO DYNAMICS Ltd
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Filing: 1991-09-09
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Granted: 1994-05-31
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Expires: 2011-09-09
Abstract
Abstract A composition of matter comprising at least 2% by weight of a fibrous material and at least 30% by weight of a binding material such that the composition can be melt-molded into articles which have mechanical strength sufficient for their intended uses and which are biodegradable. The binding material is formed of natural substance and may also include up to 30% by weight synthetic, water-soluble polymer. The fibrous material may be cellulose and/or mineral fibers which provide the attributes of reinforcement and degradability. The composition may further include up to 20% by weight liquid or solid plasticizer which serves to lower melt viscosity and add toughness to the composite material.
Inventors
- 👤 Casey V. Golden
- 👤 Ronald L. Turner
- 👤 John A. Elverum
- 👤 Ray L. Hauser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:15
CPC Classifications
A; A63; A63B; A63B57/00; A63B57/10; Y; Y10; Y10S; Y10S71/00; Y10S71/903
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
67 words
A moldable composition of matter comprising at least 2% by weight of a fibrous material and at least 30% by weight of a natural binding material selected from the group consisting of sugar, polydextrose, maltose, mannitol, gelatin, gluten, hydroxymethyl cellulose, gum arabic, and starch such that said composition can be melt-molded into an article having mechanical strength sufficient for the intended use thereof, said article being biodegradable.
Claim 2
Dependent Claim
67 words
A moldable composition of matter comprising at least 2% by weight of a fibrous material and at least 30% by weight of a natural binding material selected from the group consisting of sugar, polydextrose, maltose, mannitol, gelatin, gluten, hydroxymethyl cellulose, gum arabic, and starch such that said composition can be melt-molded into an article having mechanical strength sufficient for the intended use thereof, said article being biodegradable.
Claim 3
Dependent Claim
15 words
The composition of claim 1 wherein said sugar comprises a mixture of dextrose and fructose.
Claim 4
Dependent Claim
25 words
The composition of claim 1 wherein said fibrous material comprises a fiber selected from the group consisting of sisal, linen, cotton, viscose rayon and wood.
Claim 5
Dependent Claim
13 words
The composition of claim 1 wherein said fibrous material comprises a mineral fiber.
Claim 6
Dependent Claim
20 words
The composition of claim 1 which comprises 30 to 98% by weight binder and 2 to 50% by weight fiber.
Claim 7
Dependent Claim
28 words
The composition of claim 1 which comprises 50 to 95% by weight binder, 0 to 30% by weight synthetic water-soluble polymer, and 10 to 50% by weight fiber.
Claim 8
Dependent Claim
29 words
The composition of claim 1 which comprises 50 to 95% by weight binder, 10 to 50% by weight fiber, and 0 to 20% by weight liquid or solid plasticizer.
Claim 9
Dependent Claim
31 words
The composition of claim 1 which comprises 50 to 90% by weight binder, 0 to 20% by weight synthetic water-soluble polymer, and 0 to 20% by weight liquid or solid plasticizer.
Claim 10
Dependent Claim
22 words
The composition of claim 1 which further comprises a chemical additive whereby said additive serves to accelerate the degradation of said composition.
Claim 11
Dependent Claim
20 words
The composition of claim 1 which comprises 58 to 87% by weight binder and 11 to 42% by weight fiber.
Claim 12
Dependent Claim
22 words
The composition of claim 10 which further comprises 1 to 12.1% by weight synthetic, water-soluble polymer as a component of the binder.
Claim 13
Dependent Claim
32 words
The composition of claim 10 which further comprises 1 to 12.1% by weight synthetic, water-soluble polymer as a component of the binder and 6 to 9% by weight liquid or solid plasticizer.
Claim 14
Dependent Claim
11 words
The composition of claim 1 which includes a grass treatment adjuvant.
Claim 15
Dependent Claim
10 words
The composition of claim 1 which includes a swelling agent.
Claim 16
Dependent Claim
12 words
A golf tee molded of the composition as defined in claim 1.
Claim 17
Dependent Claim
13 words
A soil treatment spike molded of the composition as defined in claim 1.
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) | 1997-05-30 | 1997-11-29 | 1998-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-05-30 | 2001-11-29 | 2002-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-05-30 | 2005-11-29 | 2006-05-31 | $7700.00 | Window Closed / Lapsed |