US5100603A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of recycling multimaterial containers
Assignee: Individual
•
Filing: 1991-03-25
•
Granted: 1992-03-31
•
Expires: 2011-03-25
Abstract
Abstract Multimaterial containers are composed of layers of different materials. Plastic containers are each composed of single resin material. These containers may be granulated and mixed together, heated and moulded, to form new and useful objects. The containers with residue inside and labels outside are granulated to form a material resembling multicolored sawdust. A small amount of sugar is added and the mixture is placed in a mould. Heat is applied to caramelize the sugar and melt the granulated plastic encasing the multilayer particles within the plastic melt. Pressure is applied to remove air from the mould cavity. The mould and contents are cooled and the useful object removed from the mould.
Inventors
- 👤 Charles W. Neefe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:55
CPC Classifications
B; B29; B29B; B29B17/00; B29B17/0026; B29B17/0042; B29C; B29C43/00; B29C43/006; B29C67/00; B29C67/24; B29C67/242; B29C67/243; C; C08; C08J; C08J11/00; C08J11/04; C08J11/06; C08K; C08K9/00; C08K9/08; B29K; B29K2023/00; B29K2023/04; B29K2023/06; B29K2105/00; B29K2105/25; B29K2105/251; B29K2705/00; B29K2705/02; B29K2711/00; B29K2711/12; B29K2711/123; B29L; B29L2009/00; B29L2009/003; B29L2031/00; B29L2031/712; B29L2031/7162; B29L2031/7166; Y; Y02; Y02W; Y02W30/00; Y02W30/50; Y02W30/62; Y10; Y10S; Y10S264/00; Y10S264/911; Y10S264/916; Y10S264/918
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
83 words
A method of recycling laminated multimaterial used containers to make a useful object by the steps of: cutting the laminated multimaterial containers into granules, mixing the granulated multimaterial with sugar, providing granulated resins, mixing the multimaterial container granules with the resin granules, placing the mixture of granules in a mould, heating the mixture to caramelize the sugar, further heating the mixture until the resin granules melt encasing the multimaterial granules, allowing the resins to cool and removing the useful object from the mould.
Claim 2
Independent Claim
83 words
A method of recycling laminated multimaterial used containers to make a useful object by the steps of: cutting the laminated multimaterial containers into granules, mixing the granulated multimaterial with sugar, providing granulated resins, mixing the multimaterial container granules with the resin granules, placing the mixture of granules in a mould, heating the mixture to caramelize the sugar, further heating the mixture until the resin granules melt encasing the multimaterial granules, allowing the resins to cool and removing the useful object from the mould.
Claim 3
Independent Claim
84 words
A method of making useful objects by recycling used layered multimaterial containers, with labels in place on the containers and sugar containing residue in the containers by the steps of: cutting the multimaterial containers into particles resembling confetti, providing granules of resin, mixing the resin granules with the multimaterial particles, heating the mixed particles and granules, allowing the sugar containing residue to caramelize, allowing the resin to melt and encase the multimaterial particles, and allowing the resin to cool to form a useful object.
Claim 4
Independent Claim
84 words
A method of making useful objects by recycling used layered multimaterial containers, with labels in place on the containers and sugar containing residue in the containers by the steps of: cutting the multimaterial containers into particles resembling confetti, providing granules of resin, mixing the resin granules with the multimaterial particles, heating the mixed particles and granules, allowing the sugar containing residue to caramelize, allowing the resin to melt and encase the multimaterial particles, and allowing the resin to cool to form a useful object.
Claim 5
Dependent Claim
17 words
A method as in claim 1 wherein the multimaterial containers have layers of polyethylene, paper and aluminum.
Claim 6
Dependent Claim
17 words
A method as in claim 2 wherein the multimaterial containers have layers of polyethylene, paper and aluminum.
Claim 7
Dependent Claim
16 words
A method as in claim 1 wherein the multimaterial containers have layers of polyethylene and paper.
Claim 8
Dependent Claim
16 words
A method as in claim 2 wherein the multimaterial containers have layers of polyethylene and paper.
Claim 9
Dependent Claim
24 words
A method as in claim 1 wherein multimaterial containers have residue in them and labels on them that are not removed prior to cutting.
Claim 10
Dependent Claim
22 words
A method as in claim 1 wherein the resin granules are present in the amounts of from 10% to 75% by weight.
Claim 11
Dependent Claim
24 words
A method as in claim 1 wherein sugar is added to the multimaterial granules in the amount of from 0.05% to 5.0% by weight.
Claim 12
Dependent Claim
24 words
A method as in claim 2 wherein sugar is added to the multimaterial granules in the amount of from 0.05% to 5.0% by weight.
Claim 13
Dependent Claim
21 words
A method as in claim 1 wherein the resin and multimaterial particles are heated to from 160° C. to 300° C.
Claim 14
Dependent Claim
21 words
A method as in claim 2 wherein the resin and multimaterial particles are heated to from 160° C. to 300° C.
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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) | 1995-03-31 | 1995-09-30 | 1996-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-03-31 | 1999-09-30 | 2000-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-03-31 | 2003-09-30 | 2004-03-31 | $7700.00 | Window Closed / Lapsed |