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 PDFInfo
- 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
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
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.
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 (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2720862B1 (en) | 2011-06-17 | 2016-08-24 | Fiberweb, Inc. | 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 |
JP6580036B2 (en) | 2013-10-25 | 2019-09-25 | ダウ グローバル テクノロジーズ エルエルシー | Polyolefin-based film having improved water vapor transmission rate |
WO2015191944A1 (en) | 2014-06-12 | 2015-12-17 | Dow Global Technologies Llc | Multilayer films, and articles made therefrom |
BR112018010547A2 (en) | 2015-12-11 | 2018-11-13 | Dow Global Technologies Llc | multi-layer polyethylene films and articles made of the same |
KR20180090835A (en) | 2015-12-11 | 2018-08-13 | 다우 글로벌 테크놀로지스 엘엘씨 | Single layer films, and articles made therefrom |
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 |
EP3647345A1 (en) * | 2018-11-05 | 2020-05-06 | Windmöller & Hölscher KG | Breathable thermoplastic film with reduced shrinkage |
US11584111B2 (en) * | 2018-11-05 | 2023-02-21 | Windmoeller & Hoelscher 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)
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 |
-
2006
- 2006-12-22 WO PCT/US2006/049171 patent/WO2007081548A2/en active Application Filing
Patent Citations (9)
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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