发明申请
US20070142588A1 Method for the synthesis of copolymers for producing polymethacrylimides
审中-公开
合成聚甲基丙烯酰亚胺共聚物的方法
- 专利标题： Method for the synthesis of copolymers for producing polymethacrylimides
- 专利标题（中）： 合成聚甲基丙烯酰亚胺共聚物的方法
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申请号： US10568971申请日： 2004-08-25
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公开(公告)号： US20070142588A1公开(公告)日： 2007-06-21
- 发明人: Jonas Scherble , Peter Stein , Julian Alupei , Helmut Ritter , Sabine Schwarz-Barac
- 申请人： Jonas Scherble , Peter Stein , Julian Alupei , Helmut Ritter , Sabine Schwarz-Barac
- 专利权人： ROEHM GMBH & CO. KG
- 当前专利权人： ROEHM GMBH & CO. KG
- 优先权： DE10340330.2 20030829
- 国际申请： PCT/EP04/09472 WO 20040825
- 主分类号： C08F120/00
- IPC分类号： C08F120/00
摘要：
The invention relates to a method for producing polymethacrylimides in two steps: 1) radical copolymerization of (meth)acrylamides (A, (Me,H)HC=CHCONHR2) and alkyl(meth)acrylic esters (B) and optionally further ethylenically unsaturated monomers in the presence of an aqueous solvent. The monomers (A) include, in addition to acrylamide and methacrylamide, (meth)acrylamides that are substituted on their nitrogen group (R2<>H). The monomers (B) are the (meth)acrylic esters of secondary or tertiary alcohols, preferably tert. butylmethacrylate. 2) Thermal or catalytic reaction of the copolymers produced in 1) to polymethacrylimide or for R2<>H to N-substituted polymethacrylimides while alkenes are separated.
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