MXPA04001377A - Peliculas microporosas multicapas y metodos para elaborarlas. - Google Patents

Peliculas microporosas multicapas y metodos para elaborarlas.

Info

Publication number
MXPA04001377A
MXPA04001377A MXPA04001377A MXPA04001377A MXPA04001377A MX PA04001377 A MXPA04001377 A MX PA04001377A MX PA04001377 A MXPA04001377 A MX PA04001377A MX PA04001377 A MXPA04001377 A MX PA04001377A MX PA04001377 A MXPA04001377 A MX PA04001377A
Authority
MX
Mexico
Prior art keywords
film
maximum pore
multilayer
pore size
layers
Prior art date
Application number
MXPA04001377A
Other languages
English (en)
Inventor
Wu Pai-Chuan
Original Assignee
Clopay Plastic Prod Co
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 Clopay Plastic Prod Co filed Critical Clopay Plastic Prod Co
Publication of MXPA04001377A publication Critical patent/MXPA04001377A/es

Links

Classifications

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    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/18—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • B32B27/20—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
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    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • B32B27/20—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
    • B32B27/205—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents the fillers creating voids or cavities, e.g. by stretching
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
    • B32B37/15—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state
    • B32B37/153—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state at least one layer is extruded and immediately laminated while in semi-molten state
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    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/0012—Mechanical treatment, e.g. roughening, deforming, stretching
    • B32B2038/0028—Stretching, elongating
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    • B32B2305/00—Condition, form or state of the layers or laminate
    • B32B2305/02—Cellular or porous
    • B32B2305/026—Porous
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    • B32B2307/00—Properties of the layers or laminate
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    • B32B2307/00—Properties of the layers or laminate
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    • B32B2307/726—Permeability to liquids, absorption
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    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • Y10T428/249978—Voids specified as micro
    • 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
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    • 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
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Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Laminated Bodies (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)

Abstract

Se describen peliculas microporosas multicapas que comprenden la primera y segunda capas de pelicula microporosa. La primera capa de pelicula tiene un primer tamano de poro maximo y la segunda capa de pelicula tiene un segundo tamano de poro maximo diferente del primer tamano de poro maximo. En una modalidad mas especifica, las peliculas microporosas multicapas comprenden la primera, segunda y tercera capas de pelicula microporosa coextruidas. Una de la primera, segunda y tercera capas de pelicula tiene un tamano de poro maximo mas pequeno que los tamanos de poro maximos respectivos de las capas remanentes de la pelicula multicapas o mas grande que los tamanos de poro maximos respectivos de las capas remanentes de la pelicula multicapas, y dicha capa no tiene una superficie sin constrenir en la pelicula multicapas. Los metodos para producir peliculas microporosas multicapas proveen una primera capa de pelicula que tiene un tamano de poro maximo despues del estiramiento que es diferente de aquel de una segunda capa de pelicula despues del estiramiento.
MXPA04001377A 2001-08-13 2002-08-13 Peliculas microporosas multicapas y metodos para elaborarlas. MXPA04001377A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US31200601P 2001-08-13 2001-08-13
PCT/US2002/025706 WO2003016042A1 (en) 2001-08-13 2002-08-13 Multilayer microporous films and methods of making

Publications (1)

Publication Number Publication Date
MXPA04001377A true MXPA04001377A (es) 2004-06-03

Family

ID=23209439

Family Applications (1)

Application Number Title Priority Date Filing Date
MXPA04001377A MXPA04001377A (es) 2001-08-13 2002-08-13 Peliculas microporosas multicapas y metodos para elaborarlas.

Country Status (15)

Country Link
US (1) US7629042B2 (es)
EP (1) EP1420946B1 (es)
JP (1) JP4260623B2 (es)
KR (1) KR100941184B1 (es)
CN (1) CN1311964C (es)
AR (1) AR035104A1 (es)
AU (1) AU2002313741B2 (es)
BR (1) BR0211912B1 (es)
CO (1) CO5560596A2 (es)
HU (1) HU228661B1 (es)
MX (1) MXPA04001377A (es)
PL (1) PL209158B1 (es)
RU (1) RU2305632C2 (es)
TW (1) TWI296571B (es)
WO (1) WO2003016042A1 (es)

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BR0211912B1 (pt) 2013-06-11
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US20030035943A1 (en) 2003-02-20
WO2003016042A1 (en) 2003-02-27
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US7629042B2 (en) 2009-12-08
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