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公开(公告)号：EP2834293B1
公开(公告)日：2018-11-21
申请号：EP13772465.4
申请日：2013-03-01
CPC分类号： C08J11/04 , B29B17/02 , B29B2017/0289 , B29K2067/003 , C08G63/90 , C08J2367/02 , C08K5/0008 , C08K5/19 , Y02P20/143 , Y02W30/622 , Y02W30/70
摘要： An additive for use in a wash solution of a PET recycling process is described. The PET recycling process includes the steps of sorting the scrap PET to remove other materials, granulating or shredding the scrap PET to produce PET flakes, and washing the PET to remove contaminants. The Wash step comprises the steps of contacting the PET flakes with a wash solution comprising: (a) an alkali hydroxide; and (b) an additive comprising: (i) at least one non-ionic surfactant; (ii) at least one cationic surfactant; (iii) a hydrotrope; (iv) water, and (V) optionally, a solvent.
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公开(公告)号：EP2834293A2
公开(公告)日：2015-02-11
申请号：EP13772465.4
申请日：2013-03-01
CPC分类号： C08J11/04 , B29B17/02 , B29B2017/0289 , B29K2067/003 , C08G63/90 , C08J2367/02 , C08K5/0008 , C08K5/19 , Y02P20/143 , Y02W30/622 , Y02W30/70
摘要： An additive for use in a wash solution of a PET recycling process is described. The PET recycling process includes the steps of sorting the scrap PET to remove other materials, granulatirsg or shredding the scrap PET to produce PET flakes, and washing the PET to remove contaminants. The wash step comprises the steps of contacting the PET flakes with a wash solution comprising: (a) an alkali hydroxide; and (b) an additive comprising: (i) at least one non-ionic surfactant; (ji) at least one catiomc surfactant; (iii) a hydrotrope; (iv) water, and (v) optionally, a solvent.
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