发明授权
US4481319A Low-foam surface sizing agents for paper which contain copolymeric
_maleic anhydride semi-amides
失效
用于含有共聚马来酸酐半酰胺的纸的低泡表面施胶剂
- 专利标题： Low-foam surface sizing agents for paper which contain copolymeric _maleic anhydride semi-amides
- 专利标题（中）： 用于含有共聚马来酸酐半酰胺的纸的低泡表面施胶剂
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申请号： US410906申请日： 1982-08-24
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公开(公告)号： US4481319A公开(公告)日： 1984-11-06
- 发明人: Gunter Sackmann , Gunter Kolb , Joachim Probst , Friedhelm Muller , Heinz Baumgen
- 申请人： Gunter Sackmann , Gunter Kolb , Joachim Probst , Friedhelm Muller , Heinz Baumgen
- 申请人地址： DEX Leverkusen-Bayerwerk
- 专利权人： Bayer Aktiengesellschaft
- 当前专利权人： Bayer Aktiengesellschaft
- 当前专利权人地址： DEX Leverkusen-Bayerwerk
- 优先权： DEX2840650 19780919; DEX2928984 19790718
- 主分类号： C08F8/32
- IPC分类号： C08F8/32 ; D21H17/35 ; D21H17/43 ; D21H17/45 ; C08K5/21 ; C08K5/05
摘要：
Low-foam surface sizing agents for paper in the form of aqueous or aqueous-alcoholic alkali metal, amine or ammonium salt solutions of copolymers containing carboxylic acid semi-amide groups obtainable by reacting copolymers of maleic acid anhydride and diisobutylene and/or terpolymers of maleic acid anhydride, diisobutylene and a vinyl monomer copolymerizing with maleic acid anhydride, with from 5 to 50 mole percent, based on maleic acid anhydride groups, of a primary aliphatic or aromatic monoamine. The solutions may optionally contain urea or derivatives of urea.
公开/授权文献
- US5810753A Glove 公开/授权日：1998-09-22
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