WO2020002206A1 - Mousse souple de polyuréthane à haute résilience - Google Patents

Mousse souple de polyuréthane à haute résilience Download PDF

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Publication number
WO2020002206A1
WO2020002206A1 PCT/EP2019/066627 EP2019066627W WO2020002206A1 WO 2020002206 A1 WO2020002206 A1 WO 2020002206A1 EP 2019066627 W EP2019066627 W EP 2019066627W WO 2020002206 A1 WO2020002206 A1 WO 2020002206A1
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pbw
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mol
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Jun Tong
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Covestro Deutschland AG
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Covestro Deutschland AG
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    • 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
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Definitions

  • the present invention relates to a process for preparation of a high resilience polyurethane flexible foam and the high resilience polyurethane flexible foam prepared by the process, and use of the high resilience polyurethane flexible foam in car seat cushion or pillow.
  • the organic volatiles and unpleasant odors emitted by the high resilience polyurethane flexible foam used in car seats are mainly derived from the trace amounts of chemical substances remained in isocyanate, polyether polyol, surfactant, catalyst, chain- extender/crosslinker as the raw materials for the polyurethane production, as well as the oxidation or thermal degradation products by-produced in the polyurethane formation reactions.
  • the reaction system of the present invention preferably further comprises a surfactant, which is present in a content of 0.1 -1 pbw, preferably 0.25-0.9 pbw, particularly preferably 0.35-0.8 pbw, based on the mass of component B.
  • the polyether polyol of the present invention comprises a glycerol-initiated and EO-terminated long-chain polyether polyol having a functionality of 3, a weight -average molecular weight of 4000-9000 g/mol, preferably 4500-8500 g/mol, particularly preferably 5000-8000 g/mol, with a content of 50-85 pbw, preferably 60-85 pbw, particularly preferably 65-80 pbw.
  • Said long-chain polyether polyol has an EO content of 5-75 wt%, preferably 5-50 wt%, particularly preferably 10-20 wt%.
  • the blowing agent of the present invention preferably water, is present in a content of 2-5 pbw, preferably 2.5-4.5 pbw, particularly preferably 2.7-4 pbw, based on the mass of the component B.
  • At least one amino-terminated long-chain chain-extender having a functionality of 2-3, an amine value of 10-500 mg KOH/g, preferably 20-450 mg KOH/g, particularly preferably 28-350 mg KOH/g (test method according to ASTM D 2074-1992), a weight-average molecular weight of 230-5000g/mol, preferably 300-4000g/mol, particularly preferably 350- 3000g/mol (test method according to GB/T 21863-2008).
  • said polyol is selected from one or both of the following polyether polyols:
  • the said component B comprises 2-5 pbw, preferably 2.5-4.5 pbw, particularly preferably 2.7-4 pbw of water, based on the mass of component B.
  • the isocyanate -reactive component i.e. component B, comprising: polyether polyol, blowing agent, surfactant, catalyst and any other non-isocyanate additives
  • component B comprising: polyether polyol, blowing agent, surfactant, catalyst and any other non-isocyanate additives
  • the isocyanate component A and the isocyanate -reactive component were respectively poured into the tanks A and B of the cleanly-washed high pressure foaming machine.
  • the components were mixed with the high-pressure impingement produced by the high-pressure foaming machine.
  • the mixture was injected into a temperature-controlled mold and a clean foaming cup for the mold foaming and the free foaming respectively until the reactions were completed.
  • the temperature of raw materials before the reaction was controlled at 23 ⁇ 3°C.
  • At least one amino-terminated long-chain chain-extender having a functionality of 2-3, an amine value of 10-500 mg KOH/g, preferably 20-450 mg KOH/g, particularly preferably 28-350 mg KOH/g (test method according to ASTM D 2074-1992), a weight-average molecular weight of 230-5000 g/mol, preferably 300-4000 g/mol, particularly preferably 350-3000 g/mol (test method according to GB/T 21863-2008) .
  • a car seat cushion or pillow comprising the high resilience polyurethane flexible foam according to any of claims 1 -7.

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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)

Abstract

La présente invention concerne un procédé de préparation d'une mousse souple de polyuréthane à haute résilience et la mousse souple de polyuréthane à haute résilience préparée par le procédé, et l'utilisation de la mousse souple de polyuréthane à haute résilience dans un coussin ou un oreiller de siège de voiture. La mousse souple de polyuréthane à haute résilience est fabriquée à partir d'un système réactionnel comprenant des constituants tels que de l'isocyanate et du polyol, et au moins un allongeur de chaîne à chaîne longue à terminaison amino, un agent gonflant et un catalyseur. Le système réactionnel de la mousse selon la présente invention présente un vieillissement rapide et un temps de démoulage court, et la mousse obtenue présente une bonne élasticité, un confort élevé et une faible odeur satisfaisante.
PCT/EP2019/066627 2018-06-27 2019-06-24 Mousse souple de polyuréthane à haute résilience Ceased WO2020002206A1 (fr)

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CN114230745A (zh) * 2021-11-29 2022-03-25 长春富晟汽车技术研发有限公司 一种汽车座椅用低气味、低散发tdi聚氨酯泡沫材料及其制备方法
WO2024177674A1 (fr) * 2023-02-23 2024-08-29 Dow Global Technologies Llc Mousse de polyuréthane résistante à l'eau

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CN112142939B (zh) * 2020-10-21 2022-06-10 惠彩材料科技(苏州)有限公司 一种聚氨酯的混合发泡方法
CN112375198B (zh) * 2020-10-28 2022-09-06 山东一诺威聚氨酯股份有限公司 低气味高性能车门内饰板组合料及其制备方法
CN113388084B (zh) * 2021-07-05 2022-10-14 黎明化工研究设计院有限责任公司 一种pip灌泡头枕用环保组合物及其制备方法和应用

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