FR2339427A1 - Reflux coolers to limit filtered melt temperatures - for continuous extrusion, esp. of polyesters, at controlled melt temp. - Google Patents

Reflux coolers to limit filtered melt temperatures - for continuous extrusion, esp. of polyesters, at controlled melt temp.

Info

Publication number
FR2339427A1
FR2339427A1 FR7702547A FR7702547A FR2339427A1 FR 2339427 A1 FR2339427 A1 FR 2339427A1 FR 7702547 A FR7702547 A FR 7702547A FR 7702547 A FR7702547 A FR 7702547A FR 2339427 A1 FR2339427 A1 FR 2339427A1
Authority
FR
France
Prior art keywords
melt
temp
filter
reflux
degrees
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
FR7702547A
Other languages
French (fr)
Other versions
FR2339427B3 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Brunswick Corp
Original Assignee
Brunswick Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Brunswick Corp filed Critical Brunswick Corp
Publication of FR2339427A1 publication Critical patent/FR2339427A1/en
Application granted granted Critical
Publication of FR2339427B3 publication Critical patent/FR2339427B3/fr
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
    • F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
    • F28D15/0275—Arrangements for coupling heat-pipes together or with other structures, e.g. with base blocks; Heat pipe cores
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/18—Heating or cooling the filters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
    • B29C48/80—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the plasticising zone, e.g. by heating cylinders
    • B29C48/83—Heating or cooling the cylinders
    • B29C48/834—Cooling
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D1/00—Treatment of filament-forming or like material
    • D01D1/10—Filtering or de-aerating the spinning solution or melt
    • D01D1/106—Filtering
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/05—Filamentary, e.g. strands

Abstract

System for restricting heat build-up in polymeric melts due to passage through a filter, comprises locating downstream from the filter a passage intersected by >=1 hollow finger contg. a volatile fluid beneath reflux condensers. Used esp. for limiting the upper melt temps. of non-Newtonian polymers during high speed extrusion of fine filaments or other applications requiring filtered material of controlled melt viscosity. System is partic. claimed for extruding polyesters at a nominal melt temp. of 286 degrees C with coolant chamber melt temp. maintained at 288-292 degrees C max. System can accept melt of varying temp. resulting from successive alternate use of two filter units installed in parallel between an extruder and a filament die, to allow each filter to be purged without stopping throughput. By suitable choices of reflux fluids and reflux chamber pressure, the cooling chamber may be adjusted to control to specific limits with a tolerance of =4 degrees C.
FR7702547A 1976-01-30 1977-01-28 Reflux coolers to limit filtered melt temperatures - for continuous extrusion, esp. of polyesters, at controlled melt temp. Granted FR2339427A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US65393276A 1976-01-30 1976-01-30

Publications (2)

Publication Number Publication Date
FR2339427A1 true FR2339427A1 (en) 1977-08-26
FR2339427B3 FR2339427B3 (en) 1979-10-05

Family

ID=24622849

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7702547A Granted FR2339427A1 (en) 1976-01-30 1977-01-28 Reflux coolers to limit filtered melt temperatures - for continuous extrusion, esp. of polyesters, at controlled melt temp.

Country Status (7)

Country Link
JP (1) JPS5296225A (en)
BE (1) BE850039A (en)
DE (1) DE2640676A1 (en)
FR (1) FR2339427A1 (en)
IT (1) IT1115819B (en)
LU (1) LU76660A1 (en)
NL (1) NL7614377A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999064218A1 (en) * 1998-06-11 1999-12-16 Malcolm Barry James Temperature control method and apparatus

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1870946B1 (en) * 2006-06-21 2010-09-22 Otkrytoe Aktsionernoe Obschestvo "RIF" Autonomous thermo-electric source of electricity with small dimensions

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999064218A1 (en) * 1998-06-11 1999-12-16 Malcolm Barry James Temperature control method and apparatus
US7964129B1 (en) 1998-06-11 2011-06-21 Malcolm Barry James Temperature control method and apparatus

Also Published As

Publication number Publication date
JPS5296225A (en) 1977-08-12
LU76660A1 (en) 1977-06-28
DE2640676A1 (en) 1977-08-04
BE850039A (en) 1977-04-15
IT1115819B (en) 1986-02-10
FR2339427B3 (en) 1979-10-05
NL7614377A (en) 1977-08-02

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Legal Events

Date Code Title Description
ST Notification of lapse