ES2174312T3 - Pelicula encogible que tiene propiedades equilibradas o tenacidad mejorada y metodos para su fabricacion. - Google Patents

Pelicula encogible que tiene propiedades equilibradas o tenacidad mejorada y metodos para su fabricacion.

Info

Publication number
ES2174312T3
ES2174312T3 ES97949401T ES97949401T ES2174312T3 ES 2174312 T3 ES2174312 T3 ES 2174312T3 ES 97949401 T ES97949401 T ES 97949401T ES 97949401 T ES97949401 T ES 97949401T ES 2174312 T3 ES2174312 T3 ES 2174312T3
Authority
ES
Spain
Prior art keywords
shrink film
relates
improved
density
polyolefin polymer
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.)
Expired - Lifetime
Application number
ES97949401T
Other languages
English (en)
Inventor
Rajen M Patel
Jacquelyn A Degroot
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.)
Dow Chemical Co
Original Assignee
Dow Chemical 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=27114921&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ES2174312(T3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from US08/748,322 external-priority patent/US5972444A/en
Application filed by Dow Chemical Co filed Critical Dow Chemical Co
Application granted granted Critical
Publication of ES2174312T3 publication Critical patent/ES2174312T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/16—Ethylene-propylene or ethylene-propylene-diene copolymers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • 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
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B32B27/327—Layered products comprising a layer of synthetic resin comprising polyolefins comprising polyolefins obtained by a metallocene or single-site catalyst
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04—Homopolymers or copolymers of ethene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04—Homopolymers or copolymers of ethene
    • C08L23/08—Copolymers of ethene
    • C08L23/0807—Copolymers of ethene with unsaturated hydrocarbons only containing four or more carbon atoms
    • C08L23/0815—Copolymers of ethene with unsaturated hydrocarbons only containing four or more carbon atoms with aliphatic 1-olefins containing one carbon-to-carbon double bond
    • 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
    • B32B2250/00—Layers arrangement
    • B32B2250/24—All layers being polymeric
    • B32B2250/242—All polymers belonging to those covered by group B32B27/32
    • 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
    • B32B2270/00—Resin or rubber layer containing a blend of at least two different polymers
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/514—Oriented
    • B32B2307/518—Oriented bi-axially
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/732—Dimensional properties
    • B32B2307/734—Dimensional stability
    • B32B2307/736—Shrinkable
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2323/04—Homopolymers or copolymers of ethene
    • C08J2323/08—Copolymers of ethene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • 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
    • Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
    • Y10T428/1352—Polymer or resin containing [i.e., natural or synthetic]

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Wrappers (AREA)
  • Laminated Bodies (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

LA PRESENTE INVENCION SE REFIERE A UNA PELICULA RETRAIBLE MEJORADA, OBTENIDA REGULANDO Y OPTIMIZANDO SELECTIVAMENTE EL DIFERENCIAL DE DENSIDAD ENTRE, AL MENOS, DOS COMPONENTES POLIMEROS DE POLIOLEFINA, DE FORMA QUE OBTENGA VARIACIONES DE DENSIDAD REDUCIDAS. ESTA INVENCION SE REFIERE, POR UNA PARTE, A UNA PELICULA RETRAIBLE DE POLIOLEFINA ORIENTADA BIAXIALMENTE QUE TIENE UNAS PROPIEDADES EQUILIBRADAS, Y POR OTRA PARTE, UNA PELICULA RETRAIBLE ORIENTADA CUYA TENACIDAD ESTA MEJORADA. ESTA INVENCION SE REFIERE FINALMENTE A UN PROCEDIMIENTO DE ORIENTACION BIAXIAL QUE PERMITE LA FABRICACION DE UNA PELICULA RETRAIBLE UTILIZANDO UNAS TECNICAS DE ORIENTACION DE REFRACCION COMO POR EJEMPLO EL CUADRADO DE RAMA, LA DOBLE BURBUJA, LA BURBUJA CON TRAMPA, UNA ORIENTACION DE BANDA O SUS COMBINACIONES. EL PRIMER COMPONENTE ES, PREFERENTEMENTE, UN INTERPOLIMERO DE ETILENO/ AL - OLEFINA CASI LINEAL CON BAJA DENSIDAD Y EL SEGUNDO COMPONENTE ES UN INTERPOLIMERO DE ETILENO/ AL - OLEFINA RAMIFICA DO DE MODO HETEROGENEO CON DENSIDAD ELEVADA.
ES97949401T 1996-11-13 1997-11-13 Pelicula encogible que tiene propiedades equilibradas o tenacidad mejorada y metodos para su fabricacion. Expired - Lifetime ES2174312T3 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/748,322 US5972444A (en) 1991-10-15 1996-11-13 Polyolefin compositions with balanced shrink properties
US84219097A 1997-04-23 1997-04-23

Publications (1)

Publication Number Publication Date
ES2174312T3 true ES2174312T3 (es) 2002-11-01

Family

ID=27114921

Family Applications (1)

Application Number Title Priority Date Filing Date
ES97949401T Expired - Lifetime ES2174312T3 (es) 1996-11-13 1997-11-13 Pelicula encogible que tiene propiedades equilibradas o tenacidad mejorada y metodos para su fabricacion.

Country Status (14)

Country Link
US (1) US6306969B1 (es)
EP (1) EP0938521B1 (es)
JP (1) JP2000507644A (es)
KR (1) KR100478377B1 (es)
CN (1) CN1132877C (es)
AT (1) ATE218599T1 (es)
AU (1) AU722638B2 (es)
BR (1) BR9713050A (es)
CA (1) CA2272081C (es)
DE (1) DE69713131T2 (es)
ES (1) ES2174312T3 (es)
NO (1) NO992301L (es)
NZ (1) NZ335533A (es)
WO (1) WO1998021276A1 (es)

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KR20000053180A (ko) 2000-08-25
AU7180098A (en) 1998-06-03
NO992301D0 (no) 1999-05-12
CN1242030A (zh) 2000-01-19
US6306969B1 (en) 2001-10-23
CN1132877C (zh) 2003-12-31
DE69713131D1 (de) 2002-07-11
NZ335533A (en) 2000-12-22
KR100478377B1 (ko) 2005-03-23
ATE218599T1 (de) 2002-06-15
EP0938521B1 (en) 2002-06-05
CA2272081C (en) 2007-12-18
WO1998021276A1 (en) 1998-05-22
CA2272081A1 (en) 1998-05-22
JP2000507644A (ja) 2000-06-20
NO992301L (no) 1999-07-13
BR9713050A (pt) 2000-04-04
EP0938521A1 (en) 1999-09-01
DE69713131T2 (de) 2002-10-31
AU722638B2 (en) 2000-08-10

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