US3921333A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transplanter containers made from biodegradable-environmentally degradable blends
Assignee: Union Carbide Corp
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Filing: 1974-12-09
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Granted: 1975-11-25
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Expires: 1994-12-09
Abstract
Abstract Biodegradable-environmentally degradable transplanter containers are formed from a biodegradable thermoplastic polymer, e.g., poly(epsilon-caprolactone) or poly(ethylene adipate), and an environmentally degradable normally-solid ethylene polymer based composition.
Inventors
- 👤 Robert A Clendinning
- 👤 James E Potts
- 👤 Stephen W Cornell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:38
CPC Classifications
A; A01; A01G; A01G9/00; A01G9/02; A01G9/021; A01C; A01C1/00; A01C1/04; A01C1/046; A01G9/029; A01G9/0291; A01G9/14; A01G9/1438; C; C08; C08K; C08K3/00; C08K3/01; C08K3/012; C08K3/10; C08K5/00; C08K5/0008; C08K5/0033; C08K5/04; C08K5/09; C08K5/098; C08L; C08L23/00; C08L23/02; C08L23/04; C08L67/00; C08L75/00; C08L75/04; C08L75/06; C08L2201/00; C08L2201/06; Y; Y02; Y02A; Y02A40/00; Y02A40/10; Y02A40/25; Y10; Y10S; Y10S220/00; Y10S220/11; Y10S220/30; Y10S260/00; Y10S260/43
Claims Analysis
Total Claims: 32
Claim 1
Independent Claim
88 words
A TRANSPLANTER CONTAINER WHICH HAS A MEDIUM TO GERMINATE AND GROW SEEDS OR SEEDLINGS THEREIN AND WHICH IS FORMED FROM A BIODEGRADABLE-ENVIRONMENTALLY DEGRADABLE BLEND COMPRISING (I) FROM ABOUT 5 TO ABOUT 95 WEIGHT PERCENT OF BIODEGRADABLE THERMOPLASTIC POLYMER, SAID POLYMER HAVING A REDUCED VISCOSITY VALUE OF AT LEAST ABOUT 0.1 AND UPWARDS TO ABOUT 12 AND BEING FURTHER CHARACTERIZED IN THAT AT LEAST ABOUT 10 WEIGHT PERCENT OF SAID BIODEGRADABLE THERMOPLASTIC POLYMER IS ATTRIBUTABLE TO RECURRING UNITS OF THE GROUP CONSISTING OF (A) DIALKYLANOYL UNITS OF THE FORMULA
Claim 2
Dependent Claim
88 words
A TRANSPLANTER CONTAINER WHICH HAS A MEDIUM TO GERMINATE AND GROW SEEDS OR SEEDLINGS THEREIN AND WHICH IS FORMED FROM A BIODEGRADABLE-ENVIRONMENTALLY DEGRADABLE BLEND COMPRISING (I) FROM ABOUT 5 TO ABOUT 95 WEIGHT PERCENT OF BIODEGRADABLE THERMOPLASTIC POLYMER, SAID POLYMER HAVING A REDUCED VISCOSITY VALUE OF AT LEAST ABOUT 0.1 AND UPWARDS TO ABOUT 12 AND BEING FURTHER CHARACTERIZED IN THAT AT LEAST ABOUT 10 WEIGHT PERCENT OF SAID BIODEGRADABLE THERMOPLASTIC POLYMER IS ATTRIBUTABLE TO RECURRING UNITS OF THE GROUP CONSISTING OF (A) DIALKYLANOYL UNITS OF THE FORMULA
Claim 3
Dependent Claim
27 words
A transplanter container as in claim 1 wherein said biodegradable thermoplastic polymer is characterized by at least 10 weight percent of recurring oxycaproyl units of the formula
Claim 4
Dependent Claim
45 words
Aa transplanter container as in claim 2 wherein said biodegradable thermoplastic polymer has a reduced viscosity value of from about 0.2 to about 8 and is further characterized in that at least about 20 weight percent of said polymer is attributable to recurring oxycaproyl units.
Claim 5
Dependent Claim
25 words
A transplanter container as in claim 3 wherein at least about 50 weight percent of said biodegradable thermoplastic polymer is attributable to recurring oxycaproyl units.
Claim 6
Dependent Claim
28 words
A transplanter container as in claim 4 wherein at least about 70 to about 100 weight percent of said biodegradable thermoplastic polymer is attributable to recurring oxycaproyl units.
Claim 7
Dependent Claim
35 words
A transplanter container as in claim 1 comprising from about 10 to about 90 weight percent of said biodegradable thermoplastic polymer characterized by at least 50 weight percent of recurring oxycaproyl units of the formula
Claim 8
Dependent Claim
15 words
A trsnplanter container as in claim 6 wherein said normally-solid thermoplastic ethylene polymer is polyethylene.
Claim 9
Dependent Claim
18 words
A transplanter container as in claim 6 wherein said environmentally degradable ethylene polymer based composition contains an antioxidant.
Claim 10
Dependent Claim
50 words
A transplanter container as in claim 8 wherein said environmentally degradable ethylene polymer based composition contains therein an auto-oxidative susceptible additive having at least one hydrogen atom bonded to a carbon atom having an auto-oxidative susceptibility greater than that of a hydrogen atom bonded to a normal secondary carbon atom.
Claim 11
Dependent Claim
15 words
A transplanter container as in claim 9 in which said auto-oxidative susceptible additive is polypropylene.
Claim 12
Dependent Claim
19 words
A transplanter container as in claim 1 in which said polyvalent transition metal salt comprises a salt of cobalt.
Claim 13
Dependent Claim
19 words
A transplanter container as in claim 1 in which said polyvalent transition metal salt comprises a salt of iron.
Claim 14
Dependent Claim
20 words
A transplanter container as in claim 11 in which said polyvalent transition metal salt further comprises a salt of iron.
Claim 15
Dependent Claim
50 words
A transplanter container as in claim 1 wherein said environmentally degradable ethylene polymer based composition contains therein an autooxidative susceptible additive having at least one hydrogen atom bonded to a carbon atom having an auto-oxidative susceptibility greater than that of a hydrogen atom bonded to a normal secondary carbon atom.
Claim 16
Dependent Claim
15 words
A transplanter container as in claim 14 in which said auto-oxidative susceptible additive is polypropylene.
Claim 17
Dependent Claim
19 words
A transplanter container as in claim 14 in which said polyvalent transition metal salt comprises a salt of cobalt.
Claim 18
Dependent Claim
19 words
A transplanter container as in claim 14 in which said polyvalent transition metal salt comprises a salt of iron.
Claim 19
Dependent Claim
20 words
A transplanter container as in claim 16 in which said polyvalent transition metal salt further comprises a salt of iron.
Claim 20
Dependent Claim
19 words
A transplanter container as in claim 8 in which said polyvalent transition metal salt comprises a salt of cobalt.
Claim 21
Dependent Claim
19 words
A transplanter container as in claim 8 in which said polyvalent transition metal salt comprises a salt of iron.
Claim 22
Dependent Claim
20 words
A transplanter container as in claim 19 in which said polyvalent transition metal salt further comprises a salt of iron.
Claim 23
Dependent Claim
46 words
A transplanter container as in claim 1 in which said biodegradable-environmentally degradable blend comprises i. from about 25 to about 75 weight percent of said biodegradable thermoplastic polymer, and ii. from about 25 to about 75 weight percent of said environmentally degradable ethylene polymer based composition.
Claim 24
Dependent Claim
28 words
A transplanter container as in claim 1 in which said biodegradable thermoplastic polymer is characterized by at least 10 weight percent of recurring oxycaproyl units of the formula
Claim 25
Dependent Claim
34 words
A transplanter container as in claim 1 comprising from about 10 to 90 weight percent of said biodegradable thermoplastic polymer characterized by at least 50 weight percent of recurring dialkanoyl units of the formula
Claim 26
Dependent Claim
16 words
A transplanter container as in claim 24 wherein said normally solid thermoplastic ethylene polymer is polyethylene.
Claim 27
Dependent Claim
18 words
A transplanter container as in claim 24 wherein said environmentally degradable ethylene polymer based composition contains an antioxidant.
Claim 28
Dependent Claim
50 words
A transplanter container as in claim 26 wherein said environmentally degradable ethylene polymer based composition contains therein an auto-oxidative susceptible additive having at least one hydrogen atom bonded to a carbon atom having an auto-oxidative susceptibility greater than that of a hydrogen atom bonded to a normal secondary carbon atom.
Claim 29
Dependent Claim
17 words
A transplanter container as in claim 2 wherein said germination medium contains a seed or seedling therein.
Claim 30
Dependent Claim
17 words
A transplanter container as in claim 6 wherein said germination medium contains a seed or seedling therein.
Claim 31
Dependent Claim
17 words
A transplanter container as in claim 24 wherein said germination medium contains a seed or seedling therein.
Claim 32
Dependent Claim
17 words
A transplanter container as in claim 26 wherein said germination medium contains a seed or seedling therein.
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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) | 1978-11-24 | 1979-05-26 | 1979-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-24 | 1983-05-26 | 1983-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-24 | 1987-05-26 | 1987-11-25 | $7700.00 | Window Closed / Lapsed |