US4469649A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for transforming the physical characteristics of a material by controlling the influence of rheological parameters
Assignee: SOLOMAT SA LIEU-DIT LES BOULEAUX " AVENUE de la DIVISION LECLERC 91160 BALLAINVILLIER LONGJUNEAU FRACE A PULBIC Ltd Co OF FRANCE
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Filing: 1981-07-28
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Granted: 1984-09-04
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Expires: 2001-07-28
Abstract
Abstract The invention relates to a method and apparatus for transforming the physical characteristics of a material such as for an end finished molded product and to the materials or products obtained thereby. The method and apparatus are characterized in that the temperature of the material is simultaneously varied with at least one other rheological variable such as hydrostatic pressure, shear stress, mechanical vibration (frequency or amplitude), dielectric vibration (frequency or amplitude) for dielectric materials and electromagnetic properties for metallic materials. The variation in temperature and the simultaneous variation in one or more other rheological variables are intimately connected by a relationship selected and specifically programmed to obtain a product having improved properties.
Inventors
- 👤 Jean-Pierre Ibar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 03:13
CPC Classifications
G; G01; G01N; G01N25/00; G01N25/02; G01N25/04; B; B29; B29C; B29C43/00; B29C71/00; B29C71/02; B29C2071/022; B29C2071/025; B29C2071/027
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
104 words
A method for modifying the physical and physicochemical characteristics of a material which comprises controlling the rate of a rate sensitive change of physical state of the material from an equilibrium state to a non-equilibrium state by simultaneously varying as a function of time at least two rheological parameters, the rates of change of said rheological parameters with time being controlled in accordance with a predetermined relationship to achieve an end product of prescribed physical and/or physicochemical characteristics, wherein at least one of the rheological parameters is mechanical vibration, shear stress, hydrostatic pressure, dielectric vibration for dielectric materials or electromagnetic vibration for metallic materials.
Claim 2
Independent Claim
104 words
A method for modifying the physical and physicochemical characteristics of a material which comprises controlling the rate of a rate sensitive change of physical state of the material from an equilibrium state to a non-equilibrium state by simultaneously varying as a function of time at least two rheological parameters, the rates of change of said rheological parameters with time being controlled in accordance with a predetermined relationship to achieve an end product of prescribed physical and/or physicochemical characteristics, wherein at least one of the rheological parameters is mechanical vibration, shear stress, hydrostatic pressure, dielectric vibration for dielectric materials or electromagnetic vibration for metallic materials.
Claim 3
Dependent Claim
18 words
The method of claim 1 wherein said variation in mechanical vibration and dielectric vibration include variation of amplitude.
Claim 4
Dependent Claim
18 words
The method of claim 1 wherein said variation of mechanical vibration and dielectric vibration include variation of frequency.
Claim 5
Dependent Claim
15 words
The method of claim 1 wherein said variation in dielectric vibration includes variation of voltage.
Claim 6
Dependent Claim
14 words
The method of claim 1 wherein machanical vibration and dielectric vibration are applied simultaneously.
Claim 7
Dependent Claim
18 words
The method of claim 1 wherein a static stress is simultaneously applied in addition to said vibrational treatment.
Claim 8
Dependent Claim
15 words
The method of claim 1 wherein said modification of characteristics occurs during a molding operation.
Claim 9
Dependent Claim
11 words
The method of claim 1 wherein said material is a polymer.
Claim 10
Independent Claim
116 words
A method for modifying the physical and physicochemical characteristics of a material which comprises controlling the rate of a rate sensitive change of physical state of the material from an equilibrium state to a non-equilibrium state by simultaneously varying as a function of time both the temperature and at least one other rheological parameter, the rate of change of temperature with time and the rate of change of such other rheological parameter with time being controlled in accordance with a predetermined relationship to achieve an end product of prescribed physical and/or physicochemical characteristics, wherein the other rheological parameter is mechanical vibration, shear stress, hydrostatic pressure, dielectric vibration for dielectric materials or electromagnetic vibration for metallic material.
Claim 11
Independent Claim
116 words
A method for modifying the physical and physicochemical characteristics of a material which comprises controlling the rate of a rate sensitive change of physical state of the material from an equilibrium state to a non-equilibrium state by simultaneously varying as a function of time both the temperature and at least one other rheological parameter, the rate of change of temperature with time and the rate of change of such other rheological parameter with time being controlled in accordance with a predetermined relationship to achieve an end product of prescribed physical and/or physicochemical characteristics, wherein the other rheological parameter is mechanical vibration, shear stress, hydrostatic pressure, dielectric vibration for dielectric materials or electromagnetic vibration for metallic material.
Claim 12
Dependent Claim
18 words
The method of claim 9 wherein said variation in mechanical vibration and dielectric vibration include variation of amplitude.
Claim 13
Dependent Claim
18 words
The method of claim 9 wherein said variation in mechanical vibration and dielectric vibration include variation of frequency.
Claim 14
Dependent Claim
15 words
The method of claim 9 wherein said variation of dielectric vibration includes variation of voltage.
Claim 15
Dependent Claim
14 words
The method of claim 9 wherein mechanical vibration and dielectric vibrations are applied simultaneously.
Claim 16
Dependent Claim
18 words
The method of claim 9 wherein a static stress is simultaneously applied in addition to said vibrational treatment.
Claim 17
Dependent Claim
15 words
The method of claim 9 wherein said modification of characteristics occurs during a molding operation.
Claim 18
Dependent Claim
11 words
The method of claim 9 wherein said material is a polymer.
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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) | 1987-09-04 | 1988-03-05 | 1988-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-09-04 | 1992-03-05 | 1992-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-09-04 | 1996-03-05 | 1996-09-04 | $7700.00 | Window Closed / Lapsed |