Patent US5436611A successfully refreshed from Google Patents.
Patent EP0282805A2 successfully refreshed from Google Patents.
EP0282805A2
Expired / Lapsed
EP
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Improved apparatus for thermoplastically processing synthetic polymeric resins
Assignee: General Electric Co
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Filing: 1988-03-01
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Granted: —
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Expires: 2008-03-01
Abstract
Abstract Apparatus for the thermoplastic processing of polymeric resins is improved by the use of thin-film resistance heaters as the means of applying thermal energy to the resin. The heaters are mounted within the resin processing chamber.
Inventors
- 👤 Martin Burton Barancik
- 👤 Eric Otto Teutsch
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-07 09:23
CPC Classifications
B; B29; B29C; B29C45/00; B29C45/17; B29C45/72; B29C45/73; B29C33/00; B29C33/02; B29C48/00; B29C48/25; B29C48/78; B29C48/80; B29C48/83; B29C48/832; Y; Y10; Y10S; Y10S264/00; Y10S264/46; Y10S425/00; Y10S425/013
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
98 words
In apparatus for thermoplastically processing a thermoplastic, polymeric resin, which comprises; a housing; a resin processing chamber within the housing, defined by a chamber wall which is integral with the housing; an inlet into the chamber for the passage of resin material into the resin processing chamber; a means for removing from the processing chamber the processed resin material; means for controlling the resin temperature in the resin processing chamber; the improvement which comprises; employing as a means for controlling the resin temperature a thin film resistance heater disposed on or near the surface of the chamber wall.
Claim 2
Dependent Claim
98 words
In apparatus for thermoplastically processing a thermoplastic, polymeric resin, which comprises; a housing; a resin processing chamber within the housing, defined by a chamber wall which is integral with the housing; an inlet into the chamber for the passage of resin material into the resin processing chamber; a means for removing from the processing chamber the processed resin material; means for controlling the resin temperature in the resin processing chamber; the improvement which comprises; employing as a means for controlling the resin temperature a thin film resistance heater disposed on or near the surface of the chamber wall.
Claim 3
Dependent Claim
24 words
The improved apparatus of claim 1 wherein there is temperature control means associated with the means for controlling resin temperature in the processing chamber.
Claim 4
Dependent Claim
19 words
The improved apparatus of claim 2 wherein the temperature control means comprises a thermistor mounted on the chamber wall.
Claim 5
Dependent Claim
20 words
The improved apparatus of claim 1 wherein a plurality of thin-film resistance heaters operates in separate zones of the chamber.
Claim 6
Dependent Claim
17 words
The improved apparatus of claim 1 which further comprises means for cooling the resin in the chamber.
Claim 7
Dependent Claim
24 words
The improved apparatus of claim 1 wherein the apparatus is selected from the group consisting of a resin mold, extrusion die and transfer pipe.
Claim 8
Dependent Claim
24 words
The improved apparatus of claim 6 wherein the resin mold is a compression mold, thermoforming mold, blow mold, injection mold or a rotation mold.
Claim 9
Dependent Claim
31 words
The improved apparatus of claim 6 wherein the extrusion die is a blown film die, blow molding head, slit die for sheet and film, pipe die, profile die, or poltrusion die.
Claim 10
Dependent Claim
51 words
A process for shaping a thermoplastic resin in the melt form which comprises; passing the thermoplastic resin into a chamber which alters the shape of the resin; controlling the temperature of the resin in the chamber by a thin film resistance heater, and removing the shaped thermoplastic resin from the chamber.
Claim 11
Dependent Claim
51 words
A process for shaping a thermoplastic resin in the melt form which comprises; passing the thermoplastic resin into a chamber which alters the shape of the resin; controlling the temperature of the resin in the chamber by a thin film resistance heater, and removing the shaped thermoplastic resin from the chamber.
References Cited (Backward Citations)
No citation records indexed.
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