WO2001072510A2 - Glass/polyvinylbutyral laminates having directional surface patterns and a process for preparing same - Google Patents

Glass/polyvinylbutyral laminates having directional surface patterns and a process for preparing same Download PDF

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Publication number
WO2001072510A2
WO2001072510A2 PCT/US2001/010023 US0110023W WO0172510A2 WO 2001072510 A2 WO2001072510 A2 WO 2001072510A2 US 0110023 W US0110023 W US 0110023W WO 0172510 A2 WO0172510 A2 WO 0172510A2
Authority
WO
WIPO (PCT)
Prior art keywords
sheet
pvb
pattern
laminate
glass
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.)
Ceased
Application number
PCT/US2001/010023
Other languages
English (en)
French (fr)
Other versions
WO2001072510A3 (en
Inventor
Chul Won Choi
Sang Gyu Lee
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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and 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=22712046&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2001072510(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority to US10/204,128 priority Critical patent/US20030012964A1/en
Priority to EP01920860A priority patent/EP1268196B2/en
Priority to CA2399724A priority patent/CA2399724C/en
Priority to MXPA02009532A priority patent/MXPA02009532A/es
Priority to AU4787001A priority patent/AU4787001A/xx
Application filed by EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Priority to DE60105781T priority patent/DE60105781T3/de
Priority to AU2001247870A priority patent/AU2001247870B2/en
Priority to JP2001570445A priority patent/JP4879438B2/ja
Publication of WO2001072510A2 publication Critical patent/WO2001072510A2/en
Publication of WO2001072510A3 publication Critical patent/WO2001072510A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/1055—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer
    • B32B17/10761—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer containing vinyl acetal
    • 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
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/1055—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer
    • B32B17/10559—Shape of the cross-section
    • B32B17/10577—Surface roughness
    • B32B17/10596—Surface roughness created by melt fracture
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0018—Combinations of extrusion moulding with other shaping operations combined with shaping by orienting, stretching or shrinking, e.g. film blowing
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0021—Combinations of extrusion moulding with other shaping operations combined with joining, lining or laminating
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/07—Flat, e.g. panels
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/07—Flat, e.g. panels
    • B29C48/08—Flat, e.g. panels flexible, e.g. films
    • 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
    • B29K2995/0072—Roughness, e.g. anti-slip
    • 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
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31551—Of polyamidoester [polyurethane, polyisocyanate, polycarbamate, etc.]
    • Y10T428/31627—Next to aldehyde or ketone condensation product
    • Y10T428/3163—Next to acetal of polymerized unsaturated alcohol [e.g., formal butyral, etc.]

Definitions

  • the roughness of the surface of a PVB sheet of the present invention is such that haze in a glass/PVB pre-press is low even if the PVB is used within 12 hours after it is stretched.
  • Surface roughness can be measured by conventional methods, and can be expressed by the term R z .
  • R z is greater than about 30 micrometers, as determined by ISO R468.
  • a washboard pattern of the present invention has a roughness of greater than about 35, more preferably greater than about 40 and most preferably from about 35 to about 100.
  • a washboard pattern is one type of directional pattern that can be obtained on the PVB surface.
  • a washboard pattern can be obtained by operating at a die pressure of greater than 58 kg/ cm 2 (5.69 MPa).
  • a washboard pattern or surface describes a surface having alternately high (1) and low (2) areas of elevation that form ridges (3), similar to the surface of a washboard.
  • the ridges on a PVB surface of the present invention are nearly parallel to the cross-web direction of the interlayer as it is extruded, the cross-web direction being the direction perpendicular to that of the extrusion.
  • a herringbone pattern can be obtained on the PVB surface.
  • Example 1-25 100 parts of dry PVB flake of nominally 18-23% by weight of un-butyralated vinyl alcohol groups were mixed with 35-40 parts of tetraethylene glycol di-n-heptanoate plasticizer and one or more light stabilizers marketed under the tradename " Tinuvin" by Ciba-Geigy Co. and an antioxidant which were pre- mixed in the plasticizer continuously in a twin-screw extruder.
  • the melt was forced through a slot die and formed a sheeting of 0.76 mm nominal thickness.
  • agents for modifying surface energy of the bulk interlayer and usual adjuvants such as antioxidants, colorants and ultraviolet absorbers which do not adversely affect the functioning of the surface energy modifying agent and adhesion control agent can be included in the PVB composition.
  • the melt at the die is at approximately 200-220°C.
  • the lips of the die are heated by injecting pressurized steam into cavities therein. The lip temperature is controlled by the pressure of the steam injected.
  • One of the die lips is adjustable so that as it opens, the back-pressure in the die is decreased and vice versa. The position of this lip is computer-controlled, and a desired back-pressure in the die (die pressure) is used as input.
  • Example 28 Twenty windshields were prepared using the procedure in Comparative Example 26, except that the interlayer had washboard pattern, and Rz was 62.8 micrometer. It was made with die pressure of 58.8 kg/cm2 (57.7
  • Example 29 Twenty windshields were prepared as in Example 28, except that the interlayer had 8 hours of recovery time after shaping before it was assembled. None of the twenty windshields was judged unusable (100% yield).

Landscapes

  • Joining Of Glass To Other Materials (AREA)
  • Laminated Bodies (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
PCT/US2001/010023 2000-03-29 2001-03-29 Glass/polyvinylbutyral laminates having directional surface patterns and a process for preparing same Ceased WO2001072510A2 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
JP2001570445A JP4879438B2 (ja) 2000-03-29 2001-03-29 方向性表面模様を有するガラス／ポリビニルブチラール積層体およびそれを調製する方法
EP01920860A EP1268196B2 (en) 2000-03-29 2001-03-29 Glass/polyvinylbutyral laminates having directional surface patterns and a process for preparing same
CA2399724A CA2399724C (en) 2000-03-29 2001-03-29 Glass/polyvinylbutyral laminates having directional surface patterns and a process for preparing same
MXPA02009532A MXPA02009532A (es) 2000-03-29 2001-03-29 Laminados de cristal/polivinilbutiral que tienen modelos de superficie direccional y un proceso para preparar los mismos.
AU4787001A AU4787001A (en) 2000-03-29 2001-03-29 Glass/polyvinylbutyral laminates having directional surface patterns and a process for preparing same
US10/204,128 US20030012964A1 (en) 2000-03-29 2001-03-29 Glass/polyvinylbutyral laminates having directional surface patterns and a process for preparing same
DE60105781T DE60105781T3 (de) 2000-03-29 2001-03-29 Glas/polyvinylbutyral laminat mit gerichteten oberflächenstrkturen und verfahren zu ihrer herstellung
AU2001247870A AU2001247870B2 (en) 2000-03-29 2001-03-29 Glass/polyvinylbutyral laminates having directional surface patterns and a process for preparing same

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US19303900P 2000-03-29 2000-03-29
US60/193,039 2000-03-29

Publications (2)

Publication Number Publication Date
WO2001072510A2 true WO2001072510A2 (en) 2001-10-04
WO2001072510A3 WO2001072510A3 (en) 2002-03-07

Family

ID=22712046

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/010023 Ceased WO2001072510A2 (en) 2000-03-29 2001-03-29 Glass/polyvinylbutyral laminates having directional surface patterns and a process for preparing same

Country Status (8)

Country Link
US (1) US20030012964A1 (enExample)
EP (1) EP1268196B2 (enExample)
JP (1) JP4879438B2 (enExample)
AU (2) AU4787001A (enExample)
CA (1) CA2399724C (enExample)
DE (1) DE60105781T3 (enExample)
MX (1) MXPA02009532A (enExample)
WO (1) WO2001072510A2 (enExample)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010049593A3 (en) * 2008-10-31 2010-10-07 Upm-Kymmene Corporation A method for forming a wood composite product, a wood composite product, and an apparatus for the manufacture of a wood composite product
US8025826B2 (en) 2002-08-14 2011-09-27 E.I. Du Pont De Nemours And Company Glass/polyvinylbutyral laminates having directional surface patterns and a process for preparing same
WO2012148368A3 (en) * 2011-04-01 2012-12-27 Aydeskin Mustafa Printed and unprinted composite laminated glass and production method
WO2014168793A1 (en) * 2013-04-09 2014-10-16 Solutia Inc. Embossed polymer sheet
EP3127884A4 (en) * 2014-03-31 2017-12-13 Sekisui Chemical Co., Ltd. Interlayer film for laminated glass, and laminated glass
WO2023069406A1 (en) * 2021-10-19 2023-04-27 Solutia Inc. Polymer interlayers with low mottle and reduced iceflower defects

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7351468B2 (en) * 2000-10-26 2008-04-01 E. I. Du Pont De Nemours And Company Interlayers for laminated safety glass with superior de-airing and laminating properties and process for making the same
BE1015771A3 (nl) 2003-11-06 2005-08-02 Kantoorinrichting Stulens N V Doorzichtscherm.
JP2007514050A (ja) 2003-12-15 2007-05-31 イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニー 近赤外光の透過を遮断するのに有用なポリマーフィルムの調製方法
US7678441B2 (en) 2005-12-02 2010-03-16 E.I. Du Pont De Nemours And Company Interlayers for laminated safety glass with superior de-airing and laminating properties and process for making the same
AU2012201271B2 (en) * 2007-04-13 2014-08-21 Solutia Inc. Multiple layer polymer interlayers having a melt fractured surface
US20080254302A1 (en) * 2007-04-13 2008-10-16 David Paul Bourcier Multiple layer polymer interlayers having a melt fractured surface
AU2012201267B2 (en) * 2007-04-29 2014-09-04 Solutia Inc. Multiple layer polymer interlayers having an embossed surface
US20080268204A1 (en) * 2007-04-29 2008-10-30 David Paul Bourcier Multiple layer polymer interlayers having an embossed surface
KR101547233B1 (ko) * 2013-11-18 2015-08-26 에스케이씨 주식회사 유리기판 접합용 폴리비닐아세탈 시트, 이의 제조방법 및 유리기판 적층체의 제조방법
WO2016163519A1 (ja) * 2015-04-10 2016-10-13 積水化学工業株式会社 合わせガラス用中間膜、合わせガラス、及び、合わせガラス用中間膜の製造方法
EP3330238B1 (en) * 2015-07-31 2021-02-24 Sekisui Chemical Co., Ltd. Intermediate film for laminated glass, method for producing intermediate film for laminated glass, and laminated glass
WO2020007610A1 (de) * 2018-07-02 2020-01-09 Saint-Gobain Glass France Keilförmige mehrlagige zwischenschicht mit akustisch dämpfenden eigenschaften

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US3994654A (en) † 1975-01-02 1976-11-30 Monsanto Company Die for extruding thermoplastic sheets
US4925725A (en) * 1984-03-30 1990-05-15 Sekisui Kagaku Kogyo Kabushiki Kaisha Interlayer for laminated glass
JPS60204643A (ja) * 1984-03-30 1985-10-16 Sekisui Chem Co Ltd 合せガラス用中間膜
US4654179A (en) * 1985-07-02 1987-03-31 Monsanto Company Polyvinyl butyral sheet roughness control
JPH0735078B2 (ja) * 1989-03-31 1995-04-19 積水化学工業株式会社 エンボス加工された熱可塑性樹脂シートの製造方法
AU621471B2 (en) * 1989-03-31 1992-03-12 Sekisui Kagaku Kogyo Kabushiki Kaisha A method for the manufacture of thermoplastic resin sheets
JPH02301417A (ja) * 1989-05-16 1990-12-13 Shin Etsu Chem Co Ltd 粗面化ポリビニルブチラール樹脂シートの製造方法
US5455103A (en) * 1994-01-24 1995-10-03 Monsanto Company Rough-surfaced interlayer

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8025826B2 (en) 2002-08-14 2011-09-27 E.I. Du Pont De Nemours And Company Glass/polyvinylbutyral laminates having directional surface patterns and a process for preparing same
WO2010049593A3 (en) * 2008-10-31 2010-10-07 Upm-Kymmene Corporation A method for forming a wood composite product, a wood composite product, and an apparatus for the manufacture of a wood composite product
WO2012148368A3 (en) * 2011-04-01 2012-12-27 Aydeskin Mustafa Printed and unprinted composite laminated glass and production method
WO2014168793A1 (en) * 2013-04-09 2014-10-16 Solutia Inc. Embossed polymer sheet
EP3127884A4 (en) * 2014-03-31 2017-12-13 Sekisui Chemical Co., Ltd. Interlayer film for laminated glass, and laminated glass
US10350858B2 (en) 2014-03-31 2019-07-16 Sekisui Chemical Co., Ltd. Interlayer film for laminated glass, and laminated glass
WO2023069406A1 (en) * 2021-10-19 2023-04-27 Solutia Inc. Polymer interlayers with low mottle and reduced iceflower defects

Also Published As

Publication number Publication date
CA2399724A1 (en) 2001-10-04
MXPA02009532A (es) 2003-05-14
DE60105781T3 (de) 2010-05-06
AU2001247870B2 (en) 2005-09-15
JP2003528749A (ja) 2003-09-30
EP1268196B1 (en) 2004-09-22
DE60105781D1 (de) 2004-10-28
DE60105781T2 (de) 2005-10-13
JP4879438B2 (ja) 2012-02-22
US20030012964A1 (en) 2003-01-16
WO2001072510A3 (en) 2002-03-07
EP1268196B2 (en) 2009-09-30
CA2399724C (en) 2010-12-21
AU4787001A (en) 2001-10-08
EP1268196A2 (en) 2003-01-02

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