CA2249324A1 - Polymeric strands with high surface area and methods for making same - Google Patents

Polymeric strands with high surface area and methods for making same

Info

Publication number
CA2249324A1
CA2249324A1 CA002249324A CA2249324A CA2249324A1 CA 2249324 A1 CA2249324 A1 CA 2249324A1 CA 002249324 A CA002249324 A CA 002249324A CA 2249324 A CA2249324 A CA 2249324A CA 2249324 A1 CA2249324 A1 CA 2249324A1
Authority
CA
Canada
Prior art keywords
strand
surface area
extrudable
melt
fissures
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
CA002249324A
Other languages
French (fr)
Other versions
CA2249324C (en
Inventor
Lee Kirby Jameson
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.)
Kimberly Clark Worldwide Inc
Original Assignee
Kimberly-Clark Worldwide, Inc.
Lee Kirby Jameson
Kimberly-Clark Corporation
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 Kimberly-Clark Worldwide, Inc., Lee Kirby Jameson, Kimberly-Clark Corporation filed Critical Kimberly-Clark Worldwide, Inc.
Publication of CA2249324A1 publication Critical patent/CA2249324A1/en
Application granted granted Critical
Publication of CA2249324C publication Critical patent/CA2249324C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/28—Formation of filaments, threads, or the like while mixing different spinning solutions or melts during the spinning operation; Spinnerette packs therefor
    • 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
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/08—Melt spinning methods
    • D01D5/098—Melt spinning methods with simultaneous stretching
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2973—Particular cross section
    • Y10T428/2978—Surface characteristic
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31—Surface property or characteristic of web, sheet or block
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/608—Including strand or fiber material which is of specific structural definition

Abstract

A melt-extrudable polymeric strand with altered physical properties formed by extruding an emulsion comprising a melt-extrudable polymer and an immiscible component while subjecting the emulsion to ultrasonic energy. In one embodiment, a melt-extrudable polymeric strand has a plurality of fissures in the surface of the strand such that the strand has a B.E.T. surface area to six times the B.E.T. surface area of an otherwise identical strand lacking the plurality of fissures.
Desirably, the strand of this embodiment has a B.E.T. surface area of within a range from about 0.10 to about 0.18 m2/g. In a method for making such a strand, the immiscible component of the extrudable emulsion comprises a substance that is an expandable gas upon extrusion. The expandable gas forms the fissures in the strand. According to another aspect, a polymeric strand has a continuous phase which is a melt-extrudable polymer and a disperse phase which is immiscible with the continuous phase. The disperse phase forms discrete pockets of material in the extruded strand and can include a variety of components which alter the physical properties of the strand. Suitable components of the disperse phase include water, aqueous solutions, oils, low melting point metals, and other physical property altering materials.
CA 2249324 1996-05-10 1997-04-28 Polymeric strands with high surface area and methods for making same Expired - Fee Related CA2249324C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/644,511 US5801106A (en) 1996-05-10 1996-05-10 Polymeric strands with high surface area or altered surface properties
US08/644,511 1996-05-10
PCT/US1997/007112 WO1997043468A1 (en) 1996-05-10 1997-04-28 Polymeric strands with high surface area and methods for making same

Publications (2)

Publication Number Publication Date
CA2249324A1 true CA2249324A1 (en) 1997-11-20
CA2249324C CA2249324C (en) 2005-08-23

Family

ID=24585222

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2249324 Expired - Fee Related CA2249324C (en) 1996-05-10 1997-04-28 Polymeric strands with high surface area and methods for making same

Country Status (4)

Country Link
US (1) US5801106A (en)
AU (1) AU2816497A (en)
CA (1) CA2249324C (en)
WO (1) WO1997043468A1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6010592A (en) 1994-06-23 2000-01-04 Kimberly-Clark Corporation Method and apparatus for increasing the flow rate of a liquid through an orifice
US6053424A (en) 1995-12-21 2000-04-25 Kimberly-Clark Worldwide, Inc. Apparatus and method for ultrasonically producing a spray of liquid
ZA969680B (en) 1995-12-21 1997-06-12 Kimberly Clark Co Ultrasonic liquid fuel injection on apparatus and method
US6663027B2 (en) * 2000-12-11 2003-12-16 Kimberly-Clark Worldwide, Inc. Unitized injector modified for ultrasonically stimulated operation
US6543700B2 (en) 2000-12-11 2003-04-08 Kimberly-Clark Worldwide, Inc. Ultrasonic unitized fuel injector with ceramic valve body
US6528554B1 (en) 2001-02-15 2003-03-04 The University Of Akron Ultrasound assisted continuous process for making polymer blends and copolymers
WO2003090717A1 (en) * 2002-04-23 2003-11-06 Nanotherapeutics, Inc Process of forming and modifying particles and compositions produced thereby
DE102005016194B4 (en) * 2005-04-08 2009-06-04 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Process for the preparation of polymer moldings from polymers which are immiscible or poorly miscible with one another
US7744923B2 (en) * 2006-10-11 2010-06-29 Crititech, Inc. Method for precipitation of small medicament particles into use containers
CA2692638C (en) * 2010-02-25 2011-05-10 The Procter & Gamble Company Absorbent article with improved garment-like character
WO2017010451A1 (en) * 2015-07-16 2017-01-19 大川原化工機株式会社 Wet disperser

Family Cites Families (111)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE134052C (en) *
DE177045C (en) *
US2484012A (en) * 1946-07-01 1949-10-11 American Viscose Corp Manufacture of fibers
US2484014A (en) * 1947-01-24 1949-10-11 American Viscose Corp Production of artificial fibers
US2745136A (en) * 1951-03-14 1956-05-15 Deboutteville Marcel Delamare Apparatus and method for making wool-like artificial fibres
US3016599A (en) * 1954-06-01 1962-01-16 Du Pont Microfiber and staple fiber batt
DE1195428B (en) 1956-04-28 1965-06-24 Felix Schleuter Process for the production of fibers or fibrous material, in particular for textile purposes
US3071809A (en) * 1960-05-09 1963-01-08 Western Electric Co Methods of and apparatus for extruding plastic materials
NL267323A (en) * 1960-08-05
US3203215A (en) * 1961-06-05 1965-08-31 Aeroprojects Inc Ultrasonic extrusion apparatus
US3194855A (en) * 1961-10-02 1965-07-13 Aeroprojects Inc Method of vibratorily extruding graphite
US3233012A (en) * 1963-04-23 1966-02-01 Jr Albert G Bodine Method and apparatus for forming plastic materials
US3285442A (en) * 1964-05-18 1966-11-15 Dow Chemical Co Method for the extrusion of plastics
US3341394A (en) * 1966-12-21 1967-09-12 Du Pont Sheets of randomly distributed continuous filaments
US3463321A (en) * 1967-02-24 1969-08-26 Eastman Kodak Co Ultrasonic in-line filter system
US3542615A (en) * 1967-06-16 1970-11-24 Monsanto Co Process for producing a nylon non-woven fabric
DE1785158C3 (en) * 1968-08-17 1979-05-17 Metallgesellschaft Ag, 6000 Frankfurt Round nozzle for pulling off and depositing threads to form a thread fleece
US3978185A (en) * 1968-12-23 1976-08-31 Exxon Research And Engineering Company Melt blowing process
US3849241A (en) * 1968-12-23 1974-11-19 Exxon Research Engineering Co Non-woven mats by melt blowing
US3619429A (en) * 1969-06-04 1971-11-09 Yawata Welding Electrode Co Method for the uniform extrusion coating of welding flux compositions
DE2048006B2 (en) * 1969-10-01 1980-10-30 Asahi Kasei Kogyo K.K., Osaka (Japan) Method and device for producing a wide nonwoven web
DE1950669C3 (en) * 1969-10-08 1982-05-13 Metallgesellschaft Ag, 6000 Frankfurt Process for the manufacture of nonwovens
US3755527A (en) * 1969-10-09 1973-08-28 Exxon Research Engineering Co Process for producing melt blown nonwoven synthetic polymer mat having high tear resistance
US3704198A (en) * 1969-10-09 1972-11-28 Exxon Research Engineering Co Nonwoven polypropylene mats of increased strip tensile strength
GB1344635A (en) 1970-05-14 1974-01-23 Plessey Co Ltd Transducers
GB1355190A (en) * 1970-09-26 1974-06-05 Secr Defence Seals
GB1382828A (en) 1971-04-02 1975-02-05 Plessey Co Ltd Liquidspraying devices having a nozzle subjected to high-frequency vibrations
SU468948A1 (en) 1971-10-12 1975-04-30 Киевский Ордена Тудовог Красного Знаени Институт Инженеров Гражданской Авиации "Device for flooding of liquid fuels
BE793649A (en) * 1972-01-04 1973-07-03 Rhone Poulenc Textile DEVICE FOR THE MANUFACTURE OF NONWOVEN CONTINUOUS FILAMENT TABLECLOTH
GB1481707A (en) * 1974-07-16 1977-08-03 Plessey Co Ltd Fuel injection nozzle arrangement
US3884417A (en) * 1972-02-01 1975-05-20 Plessey Handel Investment Ag Nozzles for the injection of liquid fuel into gaseous media
GB1471916A (en) * 1974-03-14 1977-04-27 Plessey Co Ltd Fuel injection arrangements having vibrating fuel injection nozzles
SU386977A1 (en) 1972-05-25 1973-06-21 Государственное конструкторское бюро коксохимического машиностроени JOESSING> &: 6I5L1-1O '
US3819116A (en) * 1972-07-26 1974-06-25 Plessey Handel Investment Ag Swirl passage fuel injection devices
GB1432760A (en) 1972-12-19 1976-04-22 Plessey Co Ltd Fuel injection systems for engines
GB1415539A (en) 1972-12-19 1975-11-26 Plessey Co Ltd Liquid injection system
US4038348A (en) * 1973-03-26 1977-07-26 Kompanek Harry W Ultrasonic system for improved combustion, emission control and fuel economy on internal combustion engines
US4100324A (en) * 1974-03-26 1978-07-11 Kimberly-Clark Corporation Nonwoven fabric and method of producing same
JPS5326605B2 (en) * 1974-07-03 1978-08-03
JPS5183210A (en) * 1974-12-11 1976-07-21 Plessey Handel Investment Ag
US4100319A (en) * 1975-07-14 1978-07-11 Kimberly-Clark Corporation Stabilized nonwoven web
GB1552419A (en) * 1975-08-20 1979-09-12 Plessey Co Ltd Fuel injection system
US4064605A (en) * 1975-08-28 1977-12-27 Toyobo Co., Ltd. Method for producing non-woven webs
US4127624A (en) * 1975-09-09 1978-11-28 Hughes Aircraft Company Process for producing novel polymeric fibers and fiber masses
US4198461A (en) * 1975-09-09 1980-04-15 Hughes Aircraft Company Polymeric fiber masses, fibers therefrom, and processes for producing the same
GB1556163A (en) * 1975-09-19 1979-11-21 Plessey Co Ltd Fuel injection systems
GB1555766A (en) 1975-09-19 1979-11-14 Plessley Co Ltd fuel injection systems
JPS6011224B2 (en) * 1975-11-04 1985-03-23 株式会社豊田中央研究所 Ultrasonic fuel injection supply device
SU532529A1 (en) 1975-11-05 1976-10-25 Московский Институт Химического Машиностроения Ultrasonic processing method of polymeric materials
GB1568832A (en) * 1976-01-14 1980-06-04 Plessey Co Ltd Apparatus for metering fuel for an engine
US4091140A (en) * 1976-05-10 1978-05-23 Johnson & Johnson Continuous filament nonwoven fabric and method of manufacturing the same
DE2622117B1 (en) * 1976-05-18 1977-09-15 Siemens Ag FLOW METER
CA1073648A (en) * 1976-08-02 1980-03-18 Edward R. Hauser Web of blended microfibers and crimped bulking fibers
AU1691276A (en) * 1976-08-03 1978-02-23 Plessey Handel Investment Ag A vibratory atomizer
US4239720A (en) * 1978-03-03 1980-12-16 Akzona Incorporated Fiber structures of split multicomponent fibers and process therefor
US4134931A (en) * 1978-03-16 1979-01-16 Gulf Oil Corporation Process for treatment of olefin polymer fibrils
SU706250A1 (en) 1978-07-27 1979-12-30 Предприятие П/Я Р-6594 Method of making corrugated tubular articles from thermoplastic materials
US4372491A (en) * 1979-02-26 1983-02-08 Fishgal Semyon I Fuel-feed system
DE3008618A1 (en) * 1980-03-06 1981-09-10 Robert Bosch Gmbh, 7000 Stuttgart FUEL SUPPLY SYSTEM
DE3010985A1 (en) * 1980-03-21 1981-10-01 Siemens AG, 1000 Berlin und 8000 München FUEL INJECTION NOZZLE WITH ADDITIONAL FUEL SPRAYING
US4405297A (en) * 1980-05-05 1983-09-20 Kimberly-Clark Corporation Apparatus for forming nonwoven webs
US4340563A (en) * 1980-05-05 1982-07-20 Kimberly-Clark Corporation Method for forming nonwoven webs
GB2077351B (en) 1980-06-06 1984-06-20 Rockwell International Corp Diesel engine with ultrasonic atomization of fuel injected
FR2488655A2 (en) * 1980-08-18 1982-02-19 Rockwell International Corp FUEL INJECTOR EQUIPPED WITH A ULTRA-SOUND VIBRATION RETENTION CHECK, IN PARTICULAR FOR A DIESEL ENGINE
DE3124854C2 (en) * 1981-06-24 1985-03-14 Reinhard 8057 Eching Mühlbauer High pressure injection system with ultrasonic atomization
DE3151294C2 (en) * 1981-12-24 1986-01-23 Fa. Carl Freudenberg, 6940 Weinheim Spunbonded polypropylene fabric with a low coefficient of fall
US4496101A (en) * 1982-06-11 1985-01-29 Eaton Corporation Ultrasonic metering device and housing assembly
FR2530183B1 (en) * 1982-07-13 1988-01-22 Legrand Sa VIBRATORY ASSISTANCE DEVICE FOR MOLDING INSTALLATION, PARTICULARLY FOR SYNTHETIC MATERIAL
US4526733A (en) * 1982-11-17 1985-07-02 Kimberly-Clark Corporation Meltblown die and method
JPS59162972A (en) * 1983-03-07 1984-09-13 Hitachi Ltd Atomizer
JPS60104757A (en) * 1983-11-10 1985-06-10 Hitachi Ltd Multi-cylinder fuel atomizer for car
DE3401639A1 (en) * 1984-01-19 1985-07-25 Hoechst Ag, 6230 Frankfurt DEVICE FOR PRODUCING A SPINNING FLEECE
EP0156371B1 (en) * 1984-03-28 1990-05-30 Hitachi, Ltd. Fuel dispenser for internal combustion engine
JPS6198957A (en) * 1984-10-19 1986-05-17 Hitachi Ltd Fuel supply device of automobile
JPS61138558A (en) * 1984-12-11 1986-06-26 Toa Nenryo Kogyo Kk Oscillator for ultrasonic wave injection nozzle
US4726523A (en) * 1984-12-11 1988-02-23 Toa Nenryo Kogyo Kabushiki Kaisha Ultrasonic injection nozzle
JPH0646018B2 (en) * 1985-01-23 1994-06-15 株式会社日立製作所 Fuel atomizer
JPS61226555A (en) * 1985-03-29 1986-10-08 Hitachi Ltd Fuel injector/feeder associated with atomizer
JPS61259784A (en) * 1985-05-13 1986-11-18 Toa Nenryo Kogyo Kk Vibrator for ultrasonic injection
JPS61259782A (en) * 1985-05-13 1986-11-18 Toa Nenryo Kogyo Kk Vibrator for ultrasonic atomization having multistage edge part
JPS61259780A (en) * 1985-05-13 1986-11-18 Toa Nenryo Kogyo Kk Vibrator for ultrasonic atomization
JPS61259781A (en) * 1985-05-13 1986-11-18 Toa Nenryo Kogyo Kk Vibrator for ultrasonic pulverization having curved multistage edge part
US4663220A (en) * 1985-07-30 1987-05-05 Kimberly-Clark Corporation Polyolefin-containing extrudable compositions and methods for their formation into elastomeric products including microfibers
JPH065060B2 (en) * 1985-12-25 1994-01-19 株式会社日立製作所 Drive circuit for ultrasonic fuel atomizer for internal combustion engine
JPH0620528B2 (en) * 1986-02-06 1994-03-23 鐘淵化学工業株式会社 Method of forming uniform droplets
US4644045A (en) * 1986-03-14 1987-02-17 Crown Zellerbach Corporation Method of making spunbonded webs from linear low density polyethylene
SU1479464A1 (en) 1986-06-24 1989-05-15 Московский химико-технологический институт им.Д.И.Менделеева Method of producing articles of polyolephines
JPS636074U (en) * 1986-06-27 1988-01-16
DE3713253A1 (en) * 1986-07-23 1988-02-04 Bosch Gmbh Robert ULTRASONIC SPRAYER
DE3724545A1 (en) * 1987-07-24 1989-02-02 Bosch Gmbh Robert FUEL INJECTION NOZZLE FOR INTERNAL COMBUSTION ENGINES
US4793954A (en) * 1987-08-17 1988-12-27 The B. F. Goodrich Company Shear processing thermoplastics in the presence of ultrasonic vibration
DE3912524A1 (en) 1988-04-20 1989-11-02 Deutsche Forsch Luft Raumfahrt Device for periodically producing drops of the smallest dimensions
US4974780A (en) * 1988-06-22 1990-12-04 Toa Nenryo Kogyo K.K. Ultrasonic fuel injection nozzle
US5017311A (en) * 1988-07-21 1991-05-21 Idemitsu Kosan Co., Ltd. Method for injection molding into a resonating mold
JPH069845B2 (en) * 1988-11-24 1994-02-09 出光興産株式会社 Extrusion molding method and apparatus
US4986248A (en) * 1989-03-30 1991-01-22 Tonen Corporation Fuel supply system for internal combustion engine using an ultrasonic atomizer
US5160746A (en) * 1989-06-07 1992-11-03 Kimberly-Clark Corporation Apparatus for forming a nonwoven web
DE3918663A1 (en) * 1989-06-08 1990-12-13 Eberspaecher J FUEL PREHEATING ARRANGEMENT FOR AN ULTRASONIC SPRAYER FOR HEATER
US5179923A (en) * 1989-06-30 1993-01-19 Tonen Corporation Fuel supply control method and ultrasonic atomizer
US4995367A (en) * 1990-06-29 1991-02-26 Hitachi America, Ltd. System and method of control of internal combustion engine using methane fuel mixture
JPH0486367A (en) * 1990-07-30 1992-03-18 Aisin Seiki Co Ltd Fuel injection valve
DE4101303A1 (en) * 1991-01-17 1992-07-30 Guenter Poeschl ARRANGEMENT FOR SPRAYING PRESSURE FROM LIQUID FUEL AND METHOD THEREFOR
US5226364A (en) * 1991-03-27 1993-07-13 Rockwell International Corporation Ultrasonic ink metering for variable input control in lithographic printing
US5114633A (en) * 1991-05-16 1992-05-19 Shell Oil Company Method for the resin-impregnation of fibers
US5112206A (en) * 1991-05-16 1992-05-12 Shell Oil Company Apparatus for the resin-impregnation of fibers
US5269981A (en) * 1991-09-30 1993-12-14 Kimberly-Clark Corporation Process for hydrosonically microaperturing
US5330100A (en) * 1992-01-27 1994-07-19 Igor Malinowski Ultrasonic fuel injector
US5382400A (en) * 1992-08-21 1995-01-17 Kimberly-Clark Corporation Nonwoven multicomponent polymeric fabric and method for making same
GB2274877A (en) 1993-02-03 1994-08-10 Ford Motor Co Fuel injected i.c. engine.
JP2981536B2 (en) * 1993-09-17 1999-11-22 株式会社ペトカ Mesophase pitch-based carbon fiber mill and method for producing the same
US6010592A (en) * 1994-06-23 2000-01-04 Kimberly-Clark Corporation Method and apparatus for increasing the flow rate of a liquid through an orifice

Also Published As

Publication number Publication date
WO1997043468A1 (en) 1997-11-20
AU2816497A (en) 1997-12-05
US5801106A (en) 1998-09-01
CA2249324C (en) 2005-08-23

Similar Documents

Publication Publication Date Title
CA2249324A1 (en) Polymeric strands with high surface area and methods for making same
AU600730B2 (en) Apparatus and method for extruding and expanding polytetrafluoroethylene tubing and the products produced thereby
WO1997043478A3 (en) Polymeric strands with enhanced tensile strength, nonwoven webs including such strands, and methods for making same
KR840006150A (en) Microporous sheet material and preparation method thereof
EP0903221A3 (en) Biaxially oriented laminated polyester film, process for its manufacture and use of it for the packaging of food
EP1557258A3 (en) Radially expandable tubular polytetrafluoroethylene grafts and method of making same
DE69518423T2 (en) Continuous process for the production of very stable, very finely divided, low-viscosity polymer polyols with a low average particle size
KR960021528A (en) UV-protected, multilayer polycarbonate sheet
WO1998008667A3 (en) Method and apparatus for microcellular polymer extrusion
CA2031808A1 (en) Process for producing multilayer polytetrafluoroethylene porous membrane and semisintered polytetrafluoroethylene multilayer structure
ATE247544T1 (en) METHOD FOR PRODUCING PELLETED POLYOLEFIN
EP0997269A3 (en) Coextruded, biaxially oriented, polyester film for metallisation, method for its production and its use
ES483946A1 (en) A process for extruding ethylene polymers.
DE69913709D1 (en) METHOD AND SYSTEM FOR PRODUCING DRIP IRRIGATION PIPES
CA2369065A1 (en) Polymer foam plank with densified skin, method and apparatus for producing the same
ES451511A1 (en) Continuous extrusion of thermoplastic materials
CA2154249A1 (en) Extrusion of thermally cross-linkable materials
KR970704568A (en) METHOD FOR PRODUCING A THREE-DIMENSIONAL OBJECT
US4615858A (en) Method and apparatus producing decorative melt fracture patterns on polymeric products
WO2000001420A3 (en) Medical devices made by rotating mandrel extrusion
ATE305848T1 (en) METHOD FOR PRODUCING BIODEGRADABLE MOLDED PRODUCTS
EP0976546A3 (en) Biaxially oriented multilayer polypropylene film, process for its preparation and its use
EP0982116A3 (en) Biaxially oriented PET foil for use as SMD foil condensers
DE69626499D1 (en) METHYL ALUMINO-OXY COMPOUNDS AND CATALYSTS FOR PRODUCING POLYMERS THAT INCLUDE
RU95110863A (en) PRESSED PRODUCTS BASED ON PYROGENICALLY PRODUCED OXIDES AND METHOD FOR PRODUCING THEM

Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed