WO2007081548A3 - Method of stretching a filled film to make it microporous and breathable - Google Patents

Method of stretching a filled film to make it microporous and breathable Download PDF

Info

Publication number
WO2007081548A3
WO2007081548A3 PCT/US2006/049171 US2006049171W WO2007081548A3 WO 2007081548 A3 WO2007081548 A3 WO 2007081548A3 US 2006049171 W US2006049171 W US 2006049171W WO 2007081548 A3 WO2007081548 A3 WO 2007081548A3
Authority
WO
WIPO (PCT)
Prior art keywords
stretching
film
breathable
stretching rollers
microporous
Prior art date
Application number
PCT/US2006/049171
Other languages
French (fr)
Other versions
WO2007081548A2 (en
Inventor
Michael Pickard
Gail Becke
Original Assignee
Pliant Corp
Michael Pickard
Gail Becke
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 Pliant Corp, Michael Pickard, Gail Becke filed Critical Pliant Corp
Publication of WO2007081548A2 publication Critical patent/WO2007081548A2/en
Publication of WO2007081548A3 publication Critical patent/WO2007081548A3/en

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
    • B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
    • B29C55/02—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
    • B29C55/04—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets uniaxial, e.g. oblique
    • B29C55/06—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets uniaxial, e.g. oblique parallel with the direction of feed
    • 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
    • B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
    • B29C55/02—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
    • B29C55/023—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets using multilayered plates or sheets
    • 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
    • B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous
    • 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
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
    • B29K2105/16—Fillers
    • 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
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0037—Other properties
    • B29K2995/0065—Permeability to gases

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

A method of making a microporous breathable film wherein a precursor film made from at least one polymeric material and a filler is heated and stretched between a single pair of textured stretching rollers. A positioning bar is disposed between the stretching rollers and is adjustable relative to the stretching rollers to control the strain rate and stretching of the film. The stretching rollers can be operated such that line speeds exceed about 2,000 feet per minute (fpm) (609.6 meters per minute), and the resulting stretched film is uniformly breathable with Moisture Vapor Transmission Rates (MVTR) that can exceed about 10,000 grams per square meter per day.
PCT/US2006/049171 2006-01-06 2006-12-22 Method of stretching a filled film to make it microporous and breathable WO2007081548A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US75706206P 2006-01-06 2006-01-06
US60/757,062 2006-01-06

Publications (2)

Publication Number Publication Date
WO2007081548A2 WO2007081548A2 (en) 2007-07-19
WO2007081548A3 true WO2007081548A3 (en) 2007-11-29

Family

ID=38256800

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2006/049171 WO2007081548A2 (en) 2006-01-06 2006-12-22 Method of stretching a filled film to make it microporous and breathable

Country Status (1)

Country Link
WO (1) WO2007081548A2 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9827696B2 (en) 2011-06-17 2017-11-28 Fiberweb, Llc Vapor-permeable, substantially water-impermeable multilayer article
US10369769B2 (en) 2011-06-23 2019-08-06 Fiberweb, Inc. Vapor-permeable, substantially water-impermeable multilayer article
EP2723568B1 (en) 2011-06-23 2017-09-27 Fiberweb, LLC Vapor permeable, substantially water impermeable multilayer article
WO2012178011A2 (en) 2011-06-24 2012-12-27 Fiberweb, Inc. Vapor-permeable, substantially water-impermeable multilayer article
BR112016008031A8 (en) 2013-10-25 2020-03-17 Dow Global Technologies Llc polyolefin-based films with improved water vapor transmission rates
EP3154777A1 (en) 2014-06-12 2017-04-19 Dow Global Technologies Llc Multilayer films, and articles made therefrom
CN108290335B (en) 2015-12-11 2021-08-10 陶氏环球技术有限责任公司 Multilayer polyethylene film, and articles made therefrom
US20180281370A1 (en) 2015-12-11 2018-10-04 Dow Global Technologies Llc Monolayer films, and articles made therefrom
WO2018093672A1 (en) * 2016-11-18 2018-05-24 Clopay Plastic Products Company, Inc. Breathable films having increased hydrostatic head pressure
CN108032510A (en) * 2017-12-26 2018-05-15 新乐华宝塑料机械有限公司 A kind of film is pre-stretched structure
TWI815919B (en) 2018-07-19 2023-09-21 美商陶氏全球科技有限責任公司 Breathable elastic film and laminates and articles prepared therefrom
US11584111B2 (en) * 2018-11-05 2023-02-21 Windmoeller & Hoelscher Kg Breathable thermoplastic film with reduced shrinkage
EP3647345A1 (en) * 2018-11-05 2020-05-06 Windmöller & Hölscher KG Breathable thermoplastic film with reduced shrinkage
CN114249913A (en) * 2021-12-30 2022-03-29 福建恒安卫生材料有限公司 Breathable film with air permeability distributed in segmented mode and preparation method thereof

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5626944A (en) * 1992-01-29 1997-05-06 Rasmussen; Ole-Bendt Laminated films
US5800758A (en) * 1997-09-16 1998-09-01 Kimberly-Clark Worldwide, Inc. Process for making microporous films with improved properties
US5932497A (en) * 1997-09-15 1999-08-03 Kimberly-Clark Worldwide, Inc. Breathable elastic film and laminate
US6179939B1 (en) * 1997-05-12 2001-01-30 Kimberly-Clark Worldwide, Inc. Methods of making stretched filled microporous films
US20010041487A1 (en) * 1996-07-31 2001-11-15 Exxon Chemical Patents Inc. Process for adjusting WVTR and other properties of a polyolefin film
US20020114977A1 (en) * 2000-12-13 2002-08-22 Akira Kubota Polyester film and magnetic recording medium using the same
US6479154B1 (en) * 1999-11-01 2002-11-12 Kimberly-Clark Worldwide, Inc. Coextruded, elastomeric breathable films, process for making same and articles made therefrom
US20050248051A1 (en) * 2004-05-04 2005-11-10 Cancio Leopoldo V Method and apparatus for uniformly stretching thermoplastic film and products produced thereby
US20050256474A1 (en) * 2004-04-30 2005-11-17 Kimberly-Clark Worldwide, Inc. Absorbent article having an absorbent structure configured for improvement donning and lateral stretch distribution

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5626944A (en) * 1992-01-29 1997-05-06 Rasmussen; Ole-Bendt Laminated films
US20010041487A1 (en) * 1996-07-31 2001-11-15 Exxon Chemical Patents Inc. Process for adjusting WVTR and other properties of a polyolefin film
US6179939B1 (en) * 1997-05-12 2001-01-30 Kimberly-Clark Worldwide, Inc. Methods of making stretched filled microporous films
US5932497A (en) * 1997-09-15 1999-08-03 Kimberly-Clark Worldwide, Inc. Breathable elastic film and laminate
US5800758A (en) * 1997-09-16 1998-09-01 Kimberly-Clark Worldwide, Inc. Process for making microporous films with improved properties
US6479154B1 (en) * 1999-11-01 2002-11-12 Kimberly-Clark Worldwide, Inc. Coextruded, elastomeric breathable films, process for making same and articles made therefrom
US20020114977A1 (en) * 2000-12-13 2002-08-22 Akira Kubota Polyester film and magnetic recording medium using the same
US20050256474A1 (en) * 2004-04-30 2005-11-17 Kimberly-Clark Worldwide, Inc. Absorbent article having an absorbent structure configured for improvement donning and lateral stretch distribution
US20050248051A1 (en) * 2004-05-04 2005-11-10 Cancio Leopoldo V Method and apparatus for uniformly stretching thermoplastic film and products produced thereby

Also Published As

Publication number Publication date
WO2007081548A2 (en) 2007-07-19

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