US4018722A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reclaimed plastic material
Assignee: Individual
•
Filing: 1976-08-18
•
Granted: 1977-04-19
•
Expires: 1996-08-18
Abstract
Abstract A method for producing a new composition of matter from nuisance plastics, i.e., spent or used plastic products by the combination during a heating process of shredded waste plastic materials with controlled amounts of certain ingredients including fats, sodium chloride (NaCl), sodium hydrogen carbonate (NaHCO 3 ) and sand comprising crushed mineral particles.
Inventors
- 👤 Carl Baker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:51
CPC Classifications
C; C08; C08J; C08J11/00; C08J11/04; C08J11/06; Y; Y02; Y02W; Y02W30/00; Y02W30/50; Y02W30/62
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
136 words
A method of reclaiming nuisance plastic material comprising the steps of: heating a quantity of animal fat in a container, adding shredded thermoplastic nuisance material to said heating animal fat in sufficient quantity such that the animal fat forms a lubricant and a surface covering for the heating plastic material, adding a sufficient quantity of silica sand containing iron and manganese as impurities and sodium chloride to provide a smooth and glossy finish to the heating plastic material, adding a sufficient quantity of sodium hydrogen carbonate to retard flaming of the heating plastic material, agitating the heating plastic material to cause uniform heating thereof, heating the plastic material until the heated plastic material reaches a molten slurry condition so that it may be poured into a mold, and pouring the molten plastic material into a mold.
Claim 2
Dependent Claim
57 words
The method set forth in claim 1 wherein: two gallons of said thermoplastic material are heated to a pourable state in the presence of said animal fat, one half of a cup of said sand and two tablespoons of said sodium chloride and two tablespoons of said sodium hydrogen carbonate are dispersed throughout said heated thermoplastic material.
Claim 3
Dependent Claim
59 words
A composition of matter comprising: a thermoplastic material heated to a pourable state in the presence of a lubricant, silica sand and sodium chloride dispersed throughout the heated thermoplastic material, said sand containing iron and manganese impurities, and sodium hydrogen carbonate dispersed throughout the heated thermoplastic material, whereby the composition is provided with a smooth, glossy appearance when hardened.
Claim 4
Dependent Claim
59 words
A composition of matter comprising: a thermoplastic material heated to a pourable state in the presence of a lubricant, silica sand and sodium chloride dispersed throughout the heated thermoplastic material, said sand containing iron and manganese impurities, and sodium hydrogen carbonate dispersed throughout the heated thermoplastic material, whereby the composition is provided with a smooth, glossy appearance when hardened.
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) | 1980-04-18 | 1980-10-18 | 1981-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-04-18 | 1984-10-18 | 1985-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-04-18 | 1988-10-18 | 1989-04-19 | $7700.00 | Window Closed / Lapsed |