WO2022150528A1 - A method of recycling poly(vinyl butyral) from multilayer poly(vinyl butyral) sheets - Google Patents

A method of recycling poly(vinyl butyral) from multilayer poly(vinyl butyral) sheets Download PDF

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Publication number
WO2022150528A1
WO2022150528A1 PCT/US2022/011518 US2022011518W WO2022150528A1 WO 2022150528 A1 WO2022150528 A1 WO 2022150528A1 US 2022011518 W US2022011518 W US 2022011518W WO 2022150528 A1 WO2022150528 A1 WO 2022150528A1
Authority
WO
WIPO (PCT)
Prior art keywords
poly
vinyl butyral
soft
plasticizer
granulate
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/US2022/011518
Other languages
English (en)
French (fr)
Inventor
Yinong Ma
Helen Thompson
Bert Jozef CAMPO
John Joseph D'errico
Pu Zhang
Sungkyun Sohn
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.)
Solutia Inc
Original Assignee
Solutia Inc
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 Solutia Inc filed Critical Solutia Inc
Priority to JP2023541913A priority Critical patent/JP2024502490A/ja
Priority to MX2023007758A priority patent/MX2023007758A/es
Priority to KR1020237026959A priority patent/KR20230129186A/ko
Priority to EP22701778.7A priority patent/EP4274721A1/en
Priority to US18/260,105 priority patent/US20240058994A1/en
Priority to CN202280009521.6A priority patent/CN116669923A/zh
Publication of WO2022150528A1 publication Critical patent/WO2022150528A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
    • B29B17/02—Separating plastics from other materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
    • B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
    • B09B3/30—Destroying solid waste or transforming solid waste into something useful or harmless involving mechanical treatment
    • B09B3/35—Shredding, crushing or cutting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
    • B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
    • B09B3/80—Destroying solid waste or transforming solid waste into something useful or harmless involving an extraction step
    • 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
    • B32B17/10009—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 number, the constitution or treatment of glass sheets
    • B32B17/10036—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 number, the constitution or treatment of glass sheets comprising two outer glass 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
    • 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
    • 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
    • C08J11/00—Recovery or working-up of waste materials
    • C08J11/04—Recovery or working-up of waste materials of polymers
    • C08J11/06—Recovery or working-up of waste materials of polymers without chemical reactions
    • C08J11/08—Recovery or working-up of waste materials of polymers without chemical reactions using selective solvents for polymer components
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
    • B09B2101/00—Type of solid waste
    • B09B2101/75—Plastic waste
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
    • B29B17/04—Disintegrating plastics, e.g. by milling
    • B29B17/0412—Disintegrating plastics, e.g. by milling to large particles, e.g. beads, granules, flakes, slices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
    • B29B17/02—Separating plastics from other materials
    • B29B2017/0203—Separating plastics from plastics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
    • B29B17/02—Separating plastics from other materials
    • B29B2017/0213—Specific separating techniques
    • B29B2017/0217—Mechanical separating techniques; devices therefor
    • B29B2017/0224—Screens, sieves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
    • B29B17/02—Separating plastics from other materials
    • B29B2017/0213—Specific separating techniques
    • B29B2017/0217—Mechanical separating techniques; devices therefor
    • B29B2017/0231—Centrifugating, cyclones
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
    • B29B17/02—Separating plastics from other materials
    • B29B2017/0213—Specific separating techniques
    • B29B2017/0217—Mechanical separating techniques; devices therefor
    • B29B2017/0237—Mechanical separating techniques; devices therefor using density difference
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
    • B29B17/02—Separating plastics from other materials
    • B29B2017/0213—Specific separating techniques
    • B29B2017/0293—Dissolving the materials in gases or liquids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
    • B29B17/04—Disintegrating plastics, e.g. by milling
    • B29B2017/0424—Specific disintegrating techniques; devices therefor
    • B29B2017/0484—Grinding tools, roller mills or disc mills
    • 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
    • B29K2029/00—Use of polyvinylalcohols, polyvinylethers, polyvinylaldehydes, polyvinylketones or polyvinylketals or derivatives thereof as moulding material
    • 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
    • B29K2029/00—Use of polyvinylalcohols, polyvinylethers, polyvinylaldehydes, polyvinylketones or polyvinylketals or derivatives thereof as moulding material
    • B29K2029/14—Polyvinylacetals
    • 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
    • B29K2031/00—Use of polyvinylesters or derivatives thereof as moulding material
    • B29K2031/04—Polymers of vinyl acetate, e.g. PVAc, i.e. polyvinyl acetate
    • 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
    • B29K2105/0005—Condition, form or state of moulded material or of the material to be shaped containing compounding ingredients
    • B29K2105/0038—Plasticisers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
    • B29L2031/3052—Windscreens
    • 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
    • B32B2305/00—Condition, form or state of the layers or laminate
    • B32B2305/70—Scrap or recycled material
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/20—Waste processing or separation
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/52—Mechanical processing of waste for the recovery of materials, e.g. crushing, shredding, separation or disassembly
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/62—Plastics recycling; Rubber recycling

Definitions

  • plasticizer refers generally to a molecule or blend of molecules, as further described herein, that plasticizes a polymer at lower plasticizer content, specifically poly(vinyl butyral), thereby softening it.
  • the plasticizers useful according to the invention as additional plasticizers, help remove the soft poly(vinyl butyral)s from the granulated poly(vinyl butyral) mixtures by selectively washing or partially dissolving the soft poly(vinyl butyral) when present as additional plasticizer in higher amounts, due to the higher affinity or compatibility of the core layer for the plasticizer, as evidenced in part by its lower residual hydroxyl content.
  • poly(vinyl butyral) multilayer sheet refers to a sheet comprised of different layers of poly(vinyl butyral) resins, typically a soft or core layer, having a stiff, or skin, layer on each side of the core layer.
  • the poly(vinyl butyral) multilayer sheets of the invention thus comprise at least one soft poly(vinyl butyral) and at least one stiff poly(vinyl butyral).
  • the soft or core poly(vinyl butyral) or blend of soft poly(vinyl butyral)s may have a residual hydroxyl content, as further described herein, from about 5% to about 15%.
  • the residual hydroxyl content of the core poly(vinyl butyral) may be from about 7% to about 13, or from 8% to 12%, or as further described herein.
  • the amount of plasticizer in the soft or core poly(vinyl butyral) or a blend of soft poly(vinyl butyral), may be from about 50 phr to about 150 phr, or from 55 phr to 120 phr, or from 60 to 100 phr.
  • the second poly(vinyl butyral) resin is present in an amount of from about 2 weight percent to about 45 weight percent, or from about 5 weight percent to about 40 weight percent.
  • plasticizers having a high refractive index examples include, but are not limited to, polyadipates (Rl of about 1.460 to about 1.485); epoxides (Rl of about 1.460 to about 1.480); phthalates and terephthalates (Rl of about 1.480 to about 1.540); benzoates (Rl of about 1.480 to about 1.550); and other specialty plasticizers (Rl of about 1.490 to about
  • the polymer interlayers are laminated with a pair of clear glass sheets each of 2.3 mm thick (commercially available from Pittsburgh Glass Works of Pennsylvania) and the %Tvis is measured.
  • the polymer interlayers of the present disclosure have a %Tvis of greater than 85 for the interlayers containing only additives of ACAs, UV stabilizers, and antioxidant, or greater than 80% for the interlayers containing additional additives such as pigments, IR absorbers or blockers as mentioned above.
  • Polymer interlayers containing high levels of pigments and/or dyes may have lower %Tvis values as desired, such as in mass pigmented or colored polymer interlayers.

Landscapes

  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Sustainable Development (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Laminated Bodies (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
  • Joining Of Glass To Other Materials (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
PCT/US2022/011518 2021-01-11 2022-01-07 A method of recycling poly(vinyl butyral) from multilayer poly(vinyl butyral) sheets Ceased WO2022150528A1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP2023541913A JP2024502490A (ja) 2021-01-11 2022-01-07 多層ポリ（ビニルブチラール）シートからポリ（ビニルブチラール）を再生利用する方法
MX2023007758A MX2023007758A (es) 2021-01-11 2022-01-07 Un metodo para reciclar poli(vinil butiral) de las laminas de poli(vinil butiral) de multiples capas.
KR1020237026959A KR20230129186A (ko) 2021-01-11 2022-01-07 다층 폴리(비닐 부티르알) 시트로부터 폴리(비닐 부티르알)을재활용하는 방법
EP22701778.7A EP4274721A1 (en) 2021-01-11 2022-01-07 A method of recycling poly(vinyl butyral) from multilayer poly(vinyl butyral) sheets
US18/260,105 US20240058994A1 (en) 2021-01-11 2022-01-07 A method of recycling poly(vinyl butyral) from multilayer poly(vinyl butyral) sheets
CN202280009521.6A CN116669923A (zh) 2021-01-11 2022-01-07 由多层聚(乙烯醇缩丁醛)片材回收聚(乙烯醇缩丁醛)的方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US202163135847P 2021-01-11 2021-01-11
US63/135,847 2021-01-11

Publications (1)

Publication Number Publication Date
WO2022150528A1 true WO2022150528A1 (en) 2022-07-14

Family

ID=80123404

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2022/011518 Ceased WO2022150528A1 (en) 2021-01-11 2022-01-07 A method of recycling poly(vinyl butyral) from multilayer poly(vinyl butyral) sheets

Country Status (7)

Country Link
US (1) US20240058994A1 (https=)
EP (1) EP4274721A1 (https=)
JP (1) JP2024502490A (https=)
KR (1) KR20230129186A (https=)
CN (1) CN116669923A (https=)
MX (1) MX2023007758A (https=)
WO (1) WO2022150528A1 (https=)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024006630A1 (en) * 2022-06-29 2024-01-04 Solutia Inc. Method of recycling poly(vinyl butyral) from multilayer poly(vinyl butyral) sheets
WO2024191649A1 (en) 2023-03-10 2024-09-19 Solutia Inc. A method of recycling poly(vinyl butyral) from multilayer poly(vinyl butyral) sheets as well as poly(vinyl butyral) sheets and laminated glass

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA3215570A1 (en) * 2022-10-04 2024-04-04 Netzero Enterprises Inc. Method and apparatus for preparing extruder ready polyethylene terephtalate

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US2282057A (en) 1939-04-29 1942-05-05 Du Pont Purification and stabilization of polyvinyl acetal resins
US5137954A (en) 1991-09-30 1992-08-11 Monsanto Company Polyvinyl butyral sheet
US5190826A (en) 1990-05-14 1993-03-02 Sekisui Chemical Co., Ltd. Interlayers for use in sound-insulating laminated glasses
US5340654A (en) 1992-04-23 1994-08-23 Sekisui Kagaku Kogyo Kabushiki Kaisha Interlayer film for laminated glass
US5728472A (en) 1996-11-14 1998-03-17 Monsanto Company Control of adhesion of polyvinyl butyral sheet to glass
US7510771B2 (en) 2005-03-17 2009-03-31 Solutia Incorporated Sound reducing polymer interlayers
US20090209667A1 (en) 2008-02-15 2009-08-20 Helen Mackin Thompson Recycled Poly(vinyl butyral)
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EP3064352A1 (en) * 2013-10-25 2016-09-07 Kuraray Co., Ltd. Multilayer film and intermediate film for laminated glass formed of same
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US5631315A (en) * 1993-07-01 1997-05-20 Monsanto Company Plasticized polyvinyl butyral sheet containing epoxy resin
JP2003285042A (ja) * 2002-01-24 2003-10-07 Tsuruoka:Kk 廃合わせガラスの処理方法および中間膜用ポリビニルブチラール樹脂の再生方法
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US20080254302A1 (en) * 2007-04-13 2008-10-16 David Paul Bourcier Multiple layer polymer interlayers having a melt fractured surface
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US20140363651A1 (en) * 2013-06-10 2014-12-11 Solutia Inc. Polymer interlayers having improved optical properties
US9260582B2 (en) * 2014-03-18 2016-02-16 Shu-Hue Shao Method of producing poly(vinyl butyral) laminate from discarded laminated glass

Patent Citations (11)

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Publication number Priority date Publication date Assignee Title
US2282026A (en) 1939-04-29 1942-05-05 Du Pont Treatment of polyvinyl acetal resins
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