Patent US3854702A successfully refreshed from Google Patents.
US3854702A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and device for the continuous production of synthetic resin masses
Assignee: Individual
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Filing: 1969-04-28
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Granted: 1974-12-17
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Expires: 1989-04-28
Abstract
Abstract A method and device for the continuous production of synthetic masses wherein the resin mass and the adjuvants or powder mixtures are fed centrally into a mixing container, and the raw materials are heated by the intensive friction and the shearing forces produced by a mixing tool rotating on the bottom of the container. The thus heated lighter synthetic particles are displaced upwardly across the constantly centrally fed cold heavier synthetic particles on the smooth container wall, and are conducted away from the upper portion of the mixing container at a given temperature.
Inventors
- 👤 G Papenmeier
- 👤 L Papenmeier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:29
CPC Classifications
B; B29; B29B; B29B7/00; B29B7/002; B29B7/005; B29B7/02; B29B7/06; B29B7/10; B29B7/12; B29B7/16; B29B7/30; B29B7/34; B29B7/38; B29B7/40; B29B7/44; B29B7/58; B29B7/72; B29B7/728; B29B7/74; B29B7/7466; B29B7/80; B29B7/82; B29B7/826; B29B7/88; B29B7/90; B29C; B29C48/00; B29C48/25; B29C48/285; B29C48/29; B29B7/22; B29B7/28; B29B7/283; B29C48/03; B29K; B29K2105/00; B29K2105/0005; B29K2105/06; B29K2105/16
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
266 words
A method of continuously mixing and preparing synthetic resins comprising the steps of: centrally feeding into a mixing container at least one synthetic resin and at least one adjuvant into a first zone of said container; heating said synthetic resin and said adjuvant by intensive frictional and shearing forces produced by a mixing tool rotating on the bottom of said mixing container in said first zone; displacing at an increased temperature the mixed and heated lighter synthetic particles upwardly in and on the smooth walls of the container; feeding said heated particles to a second zone in the container immediately above said first zone; admixing said heated particles with the continuously centrally fed cold heavier particles; further heating said heated particles in admixture in said first zone; feeding said further heated particles to a third zone in said container, said third zone being immediately above said second zone; admixing said further heated particles with said heated particles of said second zone and said continuously centrally fed cold heavier particles; additionally heating said further heated particles in admixture in said first zone; feeding said additionally heated particles to a fourth zone in said container, said foUrth zone being immediately above said third zone; admixing said additionally heated particles with said further heated particles of said third zone, said heated particles of said second zone and said continuously centrally fed cold heavier synthetic particles; still further heating said additionally heated particles in admixture in said first zone; and conducting said still further heated synthetic particles away from the upper portion of said mixing container at a given temperature.
Claim 2
Independent Claim
266 words
A method of continuously mixing and preparing synthetic resins comprising the steps of: centrally feeding into a mixing container at least one synthetic resin and at least one adjuvant into a first zone of said container; heating said synthetic resin and said adjuvant by intensive frictional and shearing forces produced by a mixing tool rotating on the bottom of said mixing container in said first zone; displacing at an increased temperature the mixed and heated lighter synthetic particles upwardly in and on the smooth walls of the container; feeding said heated particles to a second zone in the container immediately above said first zone; admixing said heated particles with the continuously centrally fed cold heavier particles; further heating said heated particles in admixture in said first zone; feeding said further heated particles to a third zone in said container, said third zone being immediately above said second zone; admixing said further heated particles with said heated particles of said second zone and said continuously centrally fed cold heavier particles; additionally heating said further heated particles in admixture in said first zone; feeding said additionally heated particles to a fourth zone in said container, said foUrth zone being immediately above said third zone; admixing said additionally heated particles with said further heated particles of said third zone, said heated particles of said second zone and said continuously centrally fed cold heavier synthetic particles; still further heating said additionally heated particles in admixture in said first zone; and conducting said still further heated synthetic particles away from the upper portion of said mixing container at a given temperature.
Claim 3
Dependent Claim
96 words
A method of continuously mixing and preparing synthetic resins as claimed in claim 1 characterized in that the mixing and preparing process in the overall temperature range from room temperature (about 20* C) to the final temperature is performed through a plurality of intercoupled mixing containers, in each of which for controlling a given, bounded section of the several thermal production stages and the relevant consistencies, the properties and the behaviour of the synthetic resin mixture the friction and shear forces, speeds of rotation, temperature controls are adjustable in accordance with the conditions of the material.
Claim 4
Dependent Claim
34 words
A method of continuously mixing and preparing synthetic resins as claimed in claim 1 characterized in that ready powder mixtures are thermally prepared for being further processed in worm presses, rollers and the like.
Claim 5
Dependent Claim
36 words
A method of continuously mixing and preparing synthetic resins as claimed in claim 1 characterized in that a hot, completely gelated synthetic material is produced for direct further processes in worm presses, rollers and the like.
Claim 6
Dependent Claim
33 words
A method of continuously mixing and preparing synthetic resins as claimed in claim 1 characterized in that in the last thermal states the prepared synthetic mass is cooled to a completely gelated agglomerate.
Claim 7
Independent Claim
146 words
A method for continuously preparing powdery to granular thermoplastic synthetics with which the material under the influence of a fast rotating mixing tool is continuously circulated, heated, mixed and agglomerated in several successively switched, separated from each other relating to space, and substantially equal steps operating in different temperature ranges, introducing the raw material into the first step and conducting away the finished prepared material from the last step after its having passed through all steps, characterized in that the material is circulated in every step in at least two zones lying one on top of the other in a mutual mixing chamber in dependency of the temperature of the material and of the grain size, that the cold raw material is introduced into the center of the lowest zone and that the treated material in the peripheral range of the top zone is conducted away.
Claim 8
Independent Claim
146 words
A method for continuously preparing powdery to granular thermoplastic synthetics with which the material under the influence of a fast rotating mixing tool is continuously circulated, heated, mixed and agglomerated in several successively switched, separated from each other relating to space, and substantially equal steps operating in different temperature ranges, introducing the raw material into the first step and conducting away the finished prepared material from the last step after its having passed through all steps, characterized in that the material is circulated in every step in at least two zones lying one on top of the other in a mutual mixing chamber in dependency of the temperature of the material and of the grain size, that the cold raw material is introduced into the center of the lowest zone and that the treated material in the peripheral range of the top zone is conducted away.
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) | 1977-12-16 | 1978-06-17 | 1978-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-16 | 1982-06-17 | 1982-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-16 | 1986-06-17 | 1986-12-17 | $7700.00 | Window Closed / Lapsed |