MX2022013177A - Proceso de extrusion de polimero. - Google Patents

Proceso de extrusion de polimero.

Info

Publication number
MX2022013177A
MX2022013177A MX2022013177A MX2022013177A MX2022013177A MX 2022013177 A MX2022013177 A MX 2022013177A MX 2022013177 A MX2022013177 A MX 2022013177A MX 2022013177 A MX2022013177 A MX 2022013177A MX 2022013177 A MX2022013177 A MX 2022013177A
Authority
MX
Mexico
Prior art keywords
polymer
melt
fracture
extrusion process
extrudate
Prior art date
Application number
MX2022013177A
Other languages
English (en)
Inventor
P Scott Chisholm
Norman Aubee
Fraser Waldie
Tony Tikuisis
Douglas Checknita
Derek Wasylenko
Original Assignee
Nova Chem Int Sa
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 Nova Chem Int Sa filed Critical Nova Chem Int Sa
Publication of MX2022013177A publication Critical patent/MX2022013177A/es

Links

Classifications

    • 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
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/3001—Extrusion nozzles or dies characterised by the material or their manufacturing process
    • B29C48/3003—Materials, coating or lining therefor
    • 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
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
    • 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
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0018—Combinations of extrusion moulding with other shaping operations combined with shaping by orienting, stretching or shrinking, e.g. film blowing
    • 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
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
    • 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
    • B29C48/269—Extrusion in non-steady condition, e.g. start-up or shut-down
    • 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
    • B29C48/27—Cleaning; Purging; Avoiding contamination
    • 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
    • B29C48/94—Lubricating
    • B29C48/95—Lubricating by adding lubricant to the moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/04—Polymers of ethylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/04—Polymers of ethylene
    • B29K2023/06—PE, i.e. polyethylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2027/00—Use of polyvinylhalogenides or derivatives thereof as moulding material
    • B29K2027/12—Use of polyvinylhalogenides or derivatives thereof as moulding material containing fluorine
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/0094—Condition, form or state of moulded material or of the material to be shaped having particular viscosity

Abstract

En la manufactura de polímeros extruidos hay una serie de defectos superficiales denominados piel de tiburón, piel de serpiente y piel de naranja que generalmente se relacionan con la reología del polímero fundido. Una forma grave de defecto superficial es la "fractura por fusión" que se cree que se produce cuando la velocidad de cizallamiento en la superficie del polímero es lo suficientemente alta como para que la superficie del polímero comience a fracturarse. Es decir, hay un deslizamiento de la superficie del polímero extruido con respecto al cuerpo del polímero fundido. Por lo general, la superficie no puede fluir lo suficientemente rápido como para mantenerse al día con el cuerpo del extruido y se produce una fractura en la masa fundida que generalmente da como resultado una pérdida severa de las propiedades de la superficie del extruido. Se describe un proceso de extrusión de polímeros en donde se eliminan estos defectos superficiales indeseables.
MX2022013177A 2020-04-29 2021-04-26 Proceso de extrusion de polimero. MX2022013177A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US202063017089P 2020-04-29 2020-04-29
PCT/IB2021/053417 WO2021220134A1 (en) 2020-04-29 2021-04-26 Polymer extrusion process

Publications (1)

Publication Number Publication Date
MX2022013177A true MX2022013177A (es) 2022-11-30

Family

ID=75769655

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2022013177A MX2022013177A (es) 2020-04-29 2021-04-26 Proceso de extrusion de polimero.

Country Status (5)

Country Link
US (1) US20230202089A1 (es)
BR (1) BR112022021377A2 (es)
CA (1) CA3176575A1 (es)
MX (1) MX2022013177A (es)
WO (1) WO2021220134A1 (es)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023056208A1 (en) 2021-09-30 2023-04-06 Exxonmobil Chemical Patents Inc. Fluorine-free polymer processing aids including polyethylene glycols
WO2023149984A1 (en) * 2022-02-07 2023-08-10 Exxonmobil Chemical Patents Inc. Polyethylene glycol-based polymer processing aids

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3222314A (en) 1956-06-20 1965-12-07 Du Pont Polyethylene resin containing a solid polyethylene glycol
US3125547A (en) 1961-02-09 1964-03-17 Extrudable composition consisting of
US4013622A (en) 1975-06-23 1977-03-22 Cities Service Company Method of reducing breakdown in polyethylene film
US4540538A (en) 1981-10-08 1985-09-10 Union Carbide Corporation Anti-block compounds for extrusion of transition metal catalyzed resins
EP0217585A3 (en) * 1985-09-24 1989-08-30 Du Pont Canada Inc. Manufacture of film from linear low density polyethylene
US5015693A (en) 1988-04-15 1991-05-14 Minnesota Mining And Manufacturing Company Extrudable thermoplastic hydrocarbon polymer composition
US4855360A (en) 1988-04-15 1989-08-08 Minnesota Mining And Manufacturing Company Extrudable thermoplastic hydrocarbon polymer composition
US5550193A (en) * 1994-12-07 1996-08-27 Novacor Chemicals Ltd. Melt fracture elimination in film production
US5587429A (en) * 1995-04-04 1996-12-24 E. I. Dupont De Nemours And Company Processing aid system for polyolefins
US6277919B1 (en) 1999-05-13 2001-08-21 Dyneon Llc Polymer processing additive containing a multimodal fluoropolymer and melt processable thermoplastic polymer composition employing the same
US20120258270A1 (en) * 2009-12-30 2012-10-11 Dow Global Technologies Llc Method for extruding polymer

Also Published As

Publication number Publication date
CA3176575A1 (en) 2021-11-04
BR112022021377A2 (pt) 2022-12-06
WO2021220134A1 (en) 2021-11-04
US20230202089A1 (en) 2023-06-29

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