WO2013122812A1 - Elastomers for paper mill equipment - Google Patents

Elastomers for paper mill equipment Download PDF

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Publication number
WO2013122812A1
WO2013122812A1 PCT/US2013/025156 US2013025156W WO2013122812A1 WO 2013122812 A1 WO2013122812 A1 WO 2013122812A1 US 2013025156 W US2013025156 W US 2013025156W WO 2013122812 A1 WO2013122812 A1 WO 2013122812A1
Authority
WO
WIPO (PCT)
Prior art keywords
press belt
shoe press
elastomeric cover
bis
polycarbonate diol
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/US2013/025156
Other languages
English (en)
French (fr)
Inventor
Harpreet Singh
William H. HEATH
Amarnath SINGH
Asfar Nurul CHOWDHURY
Marcin GRIGORIEW
Kaoru Aou
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 Global Technologies LLC
Original Assignee
Dow Global Technologies LLC
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 Dow Global Technologies LLC filed Critical Dow Global Technologies LLC
Priority to CN201380019530.4A priority Critical patent/CN104245772B/zh
Priority to KR1020147022227A priority patent/KR102030865B1/ko
Priority to MX2014009762A priority patent/MX341391B/es
Priority to EP13706802.9A priority patent/EP2814860B1/en
Priority to US14/374,056 priority patent/US9096707B2/en
Priority to BR112014018944-7A priority patent/BR112014018944B1/pt
Publication of WO2013122812A1 publication Critical patent/WO2013122812A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40—High-molecular-weight compounds
    • C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
    • C08G18/44—Polycarbonates
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/08—Processes
    • C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/08—Processes
    • C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
    • C08G18/12—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step using two or more compounds having active hydrogen in the first polymerisation step
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/30—Low-molecular-weight compounds
    • C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
    • C08G18/3225—Polyamines
    • C08G18/3237—Polyamines aromatic
    • C08G18/324—Polyamines aromatic containing only one aromatic ring
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/30—Low-molecular-weight compounds
    • C08G18/38—Low-molecular-weight compounds having heteroatoms other than oxygen
    • C08G18/3855—Low-molecular-weight compounds having heteroatoms other than oxygen having sulfur
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40—High-molecular-weight compounds
    • C08G18/4009—Two or more macromolecular compounds not provided for in one single group of groups C08G18/42 - C08G18/64
    • C08G18/4018—Mixtures of compounds of group C08G18/42 with compounds of group C08G18/48
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40—High-molecular-weight compounds
    • C08G18/48—Polyethers
    • C08G18/4854—Polyethers containing oxyalkylene groups having four carbon atoms in the alkylene group
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
    • C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
    • C08G18/6633—Compounds of group C08G18/42
    • C08G18/6637—Compounds of group C08G18/42 with compounds of group C08G18/32 or polyamines of C08G18/38
    • C08G18/6648—Compounds of group C08G18/42 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3225 or C08G18/3271 and/or polyamines of C08G18/38
    • C08G18/6651—Compounds of group C08G18/42 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3225 or C08G18/3271 and/or polyamines of C08G18/38 with compounds of group C08G18/3225 or polyamines of C08G18/38
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72—Polyisocyanates or polyisothiocyanates
    • C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
    • C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
    • C08G18/7614—Polyisocyanates or polyisothiocyanates cyclic aromatic containing only one aromatic ring
    • C08G18/7621—Polyisocyanates or polyisothiocyanates cyclic aromatic containing only one aromatic ring being toluene diisocyanate including isomer mixtures
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72—Polyisocyanates or polyisothiocyanates
    • C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
    • C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
    • C08G18/7657—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings
    • C08G18/7664—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups
    • C08G18/7671—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups containing only one alkylene bisphenyl group
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/0027—Screen-cloths
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F3/00—Press section of machines for making continuous webs of paper
    • D21F3/02—Wet presses
    • D21F3/0209—Wet presses with extended press nip
    • D21F3/0218—Shoe presses
    • D21F3/0227—Belts or sleeves therefor

Definitions

  • Polyurethane elastomers are known to have been employed in the construction of industrial rollers, such as paper machine press rolls and paper machine belts.
  • the polyurethane elastomers are often the product of a reaction between a polyurethane prepolymer and a curing agent.
  • the polyurethane prepolymer is typically made by combining a polyol, typically a Poly (tetra methylene) ether glycol (PTMEG) with an isocyanate.
  • PTMEG Poly (tetra methylene) ether glycol
  • the curing agent is often either a diamine or a short chain diol.
  • Polyurethane elastomers have been selected for use in paper machine press rolls and belts because they exhibit advantages in load bearing capability and abrasion resistance over natural and synthetic rubber materials; this is particularly important for paper mill rolls and belts, where they experience high dynamic loads.
  • the rolls and belts are also exposed to high moisture and elevated temperatures.
  • PTMEG may be prone to thermo oxidative decomposition and may have low chemical resistance and low resistance to hydrolysis at high
  • Embodiments of the invention provide for paper mill equipment that can better withstand the conditions of a paper mill.
  • Embodiments encompass paper mill equipment that incorporates a polyurethane layer having a hysteresis value of less than 70% and a permanent set of less than 30%.
  • the polyurethane layer includes a polyurethane produced by curing a mixed composition.
  • the mixed composition includes at least a urethane prepolymer (A) and at least a curing agent (B) having an active hydrogen group (H).
  • the urethane prepolymer (A) has at least one terminal isocyanate group and is obtained by reacting at least a polyisocyanate compound (a) with at least a polycarbonate diol compound (b) having a number average molecular weight of at least 1500 g/mol.
  • the curing agent (B) includes at least an amine compound.
  • the curing agent (B) further includes at least a polycarbonate diol compound (b) having a number average molecular weight of at least 1500 g/mol,
  • the urethane prepolymer (A) is obtained by reacting the at least a polyisocyanate compound (a) with the at least a polycarbonate diol compound (b) and at least a polytetramethylene ether glycol (PTMEG) (c), having a number average molecular weight of between 500 and 3000 g/mol,
  • the polycarbonate diol compound (b) has a number average molecular weight of between 1500-3000 g/mol
  • the at least a polycarbonate diol compound (b) is at least one of a 1,6- hexanediol and/or 1,5-pentanediol based polycarbonate diol,
  • Figure 1 is a graph showing strain vs. stress according to embodiments of the invention.
  • Figure 6 is a graph showing sample aging in water according to embodiments of the invention.
  • Suitable examples include: LiOH, Li 2 C0 3 , K 2 C0 3 , KOH, NaOH,
  • the amount of catalyst present depends on the type of catalyst. In certain embodiments described herein, the homogeneous catalyst is used in
  • Curing agent (B) may also optionally include one or more polycarbonate polyols (b) as described above. Curing agent (B) may constitute between 0 and 80 mole % of the one or more polycarbonate polyols. All individual values and subranges from 0 to 80 are included herein and disclosed herein; for example, the one or more polycarbonate polyols may constitute from a lower limit of 0, 1, 5, 10, 15, 20, 25, 30, 40, 50, or 60, to an upper limit of 5, 10, 15, 20, 25, 30, 40, 50, 60, or 70 mole % of the curing agent (B). In certain embodiments curing agent (B) may constitute between 30 and 80 mole % of the one or more polycarbonate polyols. [0041] Curing agent (B) may also optionally include one or more polycarbonate polyols (b) as described above. Curing agent (B) may constitute between 0 and 80 mole % of the one or more polycarbonate polyols. All individual values and subranges from 0 to 80
  • ETERNACOLL PH-200 A 1,6-hexanediol and 1,5-pentanediol based
  • Hysteresis tests In this test, a dog bone is stretched to 100% strain at a rate of 5"/min and then returned back to its original dimension (one stress strain cycle). The area between the curve (stretch and return cycle) is indicative of the energy dissipated and is expressed as the % of the area under the curve obtained when the sample is stretched. The point of zero stress on the return cycle is the permanent set (PS) and it is indicative of the dimensional change the part would undergo when exposed to dynamic loadings.
  • PS permanent set
  • Embodiments of the polyurethane elastomers have a permanent set of less than 30%, 25%, or less than 21%.
  • Micro tensile dog bones are placed in a 160 °C air oven in an aluminum pan for air ageing studies. Retention in tensile properties is measured as a function of time.
  • Figure 1 depicts the stress vs. strain curve for Comparative Example A and Example 1.
  • the polycarbonate based elastomer, Example 1 has higher modulus but lower elongation as compared to PTMEG based materials (Comparative Example A).
  • Prepolymers are prepared by reacting TERATHANE 2000 (7.75 g) and
  • the curatives are reacted and cast onto a mould individually with the prepolymer at 75 °C at an index of 1.056 (Example 6-9).
  • the prepolymer is the prepolymer of Comparative Example B.
  • UH-200 (74.76 g) with ISONATE M 125 (74.76 g) for approximately 4 hours at 80 °C.
  • the prepolymer has a NCO content of approximately 10 percent by weight.
  • the resulting prepolymer (32 g) is then mixed with a curative agent (ETHACURE 300 (8 g) and poured onto steel plate with spacer (coated with a demold spray), covered with a metal plate; pressured to 10000 psi for 5 minutes.
  • the plaques are then cured for 25 h in an oven at 80 °C.

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Rolls And Other Rotary Bodies (AREA)
PCT/US2013/025156 2012-02-13 2013-02-07 Elastomers for paper mill equipment Ceased WO2013122812A1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
CN201380019530.4A CN104245772B (zh) 2012-02-13 2013-02-07 用于造纸设备的弹性体
KR1020147022227A KR102030865B1 (ko) 2012-02-13 2013-02-07 페이퍼 밀 장비용 엘라스토머
MX2014009762A MX341391B (es) 2012-02-13 2013-02-07 Elastomeros para equipo de fabrica de papel.
EP13706802.9A EP2814860B1 (en) 2012-02-13 2013-02-07 Elastomers for paper mill equipment
US14/374,056 US9096707B2 (en) 2012-02-13 2013-02-07 Elastomers for paper mill equipment
BR112014018944-7A BR112014018944B1 (pt) 2012-02-13 2013-02-07 Revestimento elastomérico para cilindros de fabricação de papel ou cilindros de decapagem ácida e esteira de prensa de calçado para fabricação de papel

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201261597895P 2012-02-13 2012-02-13
US61/597,895 2012-02-13

Publications (1)

Publication Number Publication Date
WO2013122812A1 true WO2013122812A1 (en) 2013-08-22

Family

ID=47754978

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2013/025156 Ceased WO2013122812A1 (en) 2012-02-13 2013-02-07 Elastomers for paper mill equipment

Country Status (7)

Country Link
US (1) US9096707B2 (enExample)
EP (1) EP2814860B1 (enExample)
KR (1) KR102030865B1 (enExample)
CN (1) CN104245772B (enExample)
BR (1) BR112014018944B1 (enExample)
MX (1) MX341391B (enExample)
WO (1) WO2013122812A1 (enExample)

Cited By (14)

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JP2016199813A (ja) * 2015-04-07 2016-12-01 ヤマウチ株式会社 シュープレス用ベルト
JP2017002451A (ja) * 2015-06-05 2017-01-05 イチカワ株式会社 シュープレスベルト
WO2020057800A1 (de) * 2018-09-18 2020-03-26 Voith Patent Gmbh Pressmantel, dessen verwendung sowie presswalze, schuhpresse und verwendung eines polyuretans zur herstellung einer polymerschicht eines pressmantels
USD903268S1 (en) 2019-02-06 2020-12-01 S. C. Johnson & Son, Inc. Insole
USD906658S1 (en) 2019-02-19 2021-01-05 S. C. Johnson & Son, Inc. Insole
EP3875680A1 (en) * 2020-02-28 2021-09-08 Ichikawa Co., Ltd. Shoe press belt and method for producing a shoe press belt
EP3875682A1 (en) * 2020-02-28 2021-09-08 Ichikawa Co., Ltd. Shoe press belt and method for producing a shoe press belt
EP3875679A1 (en) * 2020-02-28 2021-09-08 Ichikawa Co., Ltd. Shoe press belt and method for producing a shoe press belt
EP3875681A1 (en) * 2020-02-28 2021-09-08 Ichikawa Co., Ltd. Shoe press belt and method for producing a shoe press belt
WO2021178800A1 (en) 2020-03-06 2021-09-10 Lanxess Corporation Curable polyurethane prepolymer composition
WO2022223163A1 (de) * 2021-04-19 2022-10-27 Voith Patent Gmbh Polyurethan, walzenbezug und herstellungsverfahren
WO2022223162A1 (de) * 2021-04-19 2022-10-27 Voith Patent Gmbh Polyurethan, walzenbezug und herstellungsverfahren
WO2022269512A1 (en) * 2021-06-23 2022-12-29 Saudi Aramco Technologies Company Polyol compositions and methods
US11668048B2 (en) 2017-12-27 2023-06-06 Yamauchi Corporation Shoe press belt

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DE102016201344A1 (de) * 2016-01-29 2017-08-03 Voith Patent Gmbh Pressmantel und Verfahren zur Herstellung eines solchen
CN107022920B (zh) * 2016-02-01 2021-04-20 市川株式会社 靴形压榨带
CN108316042B (zh) * 2017-12-20 2019-09-27 东莞理文造纸厂有限公司 一种耐腐蚀聚氨酯压榨辊的制备方法
KR102298112B1 (ko) * 2019-11-20 2021-09-03 에스케이씨솔믹스 주식회사 연마패드용 조성물, 연마패드 및 이를 이용한 반도체 소자의 제조방법
TWI827890B (zh) 2019-10-23 2024-01-01 南韓商Ｓｋ恩普士股份有限公司 用於研磨墊之組成物及研磨墊
WO2021182566A1 (ja) * 2020-03-12 2021-09-16 ヤマウチ株式会社 抄紙機用ロール被覆材および抄紙機用ロール

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MX2014009762A (es) 2014-09-12
CN104245772B (zh) 2017-08-11
KR20140129002A (ko) 2014-11-06
KR102030865B1 (ko) 2019-10-10
EP2814860B1 (en) 2020-10-14
US9096707B2 (en) 2015-08-04
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BR112014018944A2 (enExample) 2017-06-20
CN104245772A (zh) 2014-12-24

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