发明授权
- 专利标题： Process for working up stabilized ABS polymers with recovery of unreacted monomers
- 专利标题（中）： 加工稳定的ABS聚合物与回收单体的工艺
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申请号： US864302申请日： 1992-04-06
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公开(公告)号： US5225465A公开(公告)日： 1993-07-06
- 发明人: Herbert Eichenauer , Ulrich Jansen , Ralph Ostarek , Otto Koch , Karl-Heinz Ott
- 申请人： Herbert Eichenauer , Ulrich Jansen , Ralph Ostarek , Otto Koch , Karl-Heinz Ott
- 申请人地址： DEX Leverkusen
- 专利权人： Bayer Aktiengesellschaft
- 当前专利权人： Bayer Aktiengesellschaft
- 当前专利权人地址： DEX Leverkusen
- 优先权： DEX4112789 19910419
- 主分类号： C08F6/16
- IPC分类号： C08F6/16 ; C08F6/00 ; C08F6/06 ; C08F279/00 ; C08F279/04 ; C08J11/02 ; C08K5/13 ; C08K5/36 ; C08L55/00 ; C08L55/02
摘要：
A process for processing polymers of the ABS type present in emulsion form and effectively stabilized against oxidative attack with optionally continuous recovery and direct reuse of untreated monomers, wherein a combination of at least one phenolic antioxidant having a molecular weight above 300 without ester groups in the molecule and at least one sulfur-containing co-stabilizer having a molecular weight above 500 without ester groups in the molecule is added to the ABS polymer emulsion for stabilization against oxidative degradation.