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Patent US3676401A successfully refreshed from Google Patents.
US3676401A
Expired / Lapsed
US
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Environmentally disintegratable plastic compositions comprising copolymers of ethylene and carbon monoxide and a degradation accelerator
Assignee: Eastman Kodak Co
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Filing: 1970-10-30
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Granted: 1972-07-11
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Expires: 1990-10-30
Abstract
Abstract Compositions comprising (1) a copolymer of ethylene and 0.1 percent to 18 percent by weight of carbon monoxide, said percentage range being the proportion of carbon monoxide in the copolymer, and (2) an ultraviolet light degradable amount of an organometallic compound or salt of a common metal, e.g., ferricine, cobalt acetyl acetonate, etc., whereby film, articles of manufacture and especially packaging means, upon exposure to ultraviolet rays emitted by the sun are capable of accelerated deterioration thereby causing such materials including packaging means to decompose forming dust or flakes which may become embedded in the soil or carried away by rain water under those circumstances where they are thrown away out of doors so as to be exposed to natural environmental conditions.
Inventors
- 👤 James William Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:23
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/09; C08K5/098; B; B65; B65D; B65D65/00; B65D65/38; B65D65/46; B65D65/466; B65D81/00; B65D81/24; B65D81/30; C08G; C08G67/00; C08G67/02; C08K5/0008; C08K5/0033; C08K5/56; C08L; C08L23/00; C08L23/02; C08L23/04; C08L23/08; C08L23/0846; Y; Y10; Y10S; Y10S220/00; Y10S220/30; Y10S260/00; Y10S260/43; Y10S428/00; Y10S428/913
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
192 words
from about 0.001 percent to about 5 percent by weight based on total polymer weight of an organometallic compound selected from the group consisting of copper oxalate, nickel sebacate, metal salts of monocarboxylic acids of the formula R''COO wherein R'' is a hydrocarbon radical containing from one to 17 carbon atoms and the metal is selected from the group consisting of copper, cobalt, iron and nickel; metal acetylacetonate complexes of CH3COCH2OCOCH3 wherein the metal is selected from the group consisting of copper, cobalt, iron, manganese, chromium, vanadium and nickel; metal alkylacetoacetate complexes of CH3COCH2COOR'''' wherein the R'''' group contains from 2 to 20 carbons and the metal is selected from the group consisting of copper, cobalt, iron, manganese, nickel and zinc; metal complexes of N,N''-salicylidene ethylene diamine wherein the metal is selected from the group consisting of copper, cobalt, vanadium and manganese; metal 8-hydroxy quinolinates wherein the metal is selected from the group consisting of copper, cobalt, zinc, vanadium and manganese; chromic chloride complex with stearic or oleic acid; cobaltic chloride complex with oleic acid; and copper dust, said organometallic compound content being sufficient to accelerate degradation upon exposure to ultraviolet light.
Claim 2
Dependent Claim
15 words
The composition of claim 1 wherein the amount of carbon monoxide is about 6-12 percent.
Claim 3
Dependent Claim
52 words
The composition of claim 1 wherein the amount of carbon monoxide is sufficient whereby packaging means in the form of film or a molded article is capable of disintegration upon exposure to ultraviolet light emitted by the sun within a time period in the range between about 4 days and 2 weeks.
Claim 4
Dependent Claim
11 words
The composition of claim 1 wherein the organometallic compound is ferricine.
Claim 5
Dependent Claim
13 words
The composition of claim 1 wherein the organometallic compound is cobalt acetyl acetonate.
Claim 6
Dependent Claim
31 words
The composition of claim 2 containing about 1 percent by weight of cobalt acetyl acetonate and the amount of carbon monoxide is 8 percent based on the weight of the copolymer.
Claim 7
Dependent Claim
13 words
The composition of claim 1 wherein the sAlt is a salt of iron.
Claim 8
Dependent Claim
13 words
The composition of claim 1 wherein the salt is a salt of copper.
Claim 9
Dependent Claim
13 words
The composition of claim 1 wherein the salt is a salt of manganese.
Claim 10
Dependent Claim
15 words
The composition of claim 1 wherein the amount of carbon monoxide is about 0.5 percent.
Claim 11
Dependent Claim
15 words
The composition of claim 1 wherein the amount of carbon monoxide is about 1 percent.
Claim 12
Dependent Claim
15 words
The composition of claim 1 wherein the amount of carbon monoxide is about 6 percent.
Claim 13
Dependent Claim
15 words
The composition of claim 1 wherein the amount of carbon monoxide is about 8 percent.
Claim 14
Dependent Claim
15 words
The composition of claim 1 wherein the amount of carbon monoxide is about 12 percent.
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) | 1975-07-11 | 1976-01-10 | 1976-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-11 | 1980-01-10 | 1980-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-11 | 1984-01-10 | 1984-07-11 | $7700.00 | Window Closed / Lapsed |