发明授权
- 专利标题: Formaldehyde condensates and their preparation
- 专利标题(中): 甲醛缩合物及其制备
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申请号: US425038申请日: 1982-09-27
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公开(公告)号: US4453002A公开(公告)日: 1984-06-05
- 发明人: Werner Maurer , Johann Zimmer , Artur Haus
- 申请人: Werner Maurer , Johann Zimmer , Artur Haus
- 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: DEX2944090 19791031
- 主分类号: C08G8/00
- IPC分类号: C08G8/00 ; C08G8/08 ; C08G8/24 ; D06P1/52 ; D06P1/56 ; D06P5/08 ; C07C147/107
摘要:
Condensation products which are obtained from formaldehyde, di-hydroxyaryl sulphones, phenols, if desired, and hydroxyarylcarboxylic acids and are prepared in a one-stage reaction at pH values between 2 and 5 are suitable as fixing agents for basic dyestuffs.
公开/授权文献
- US6001455A Sheet-shaped product of thermoplastic elastomer 公开/授权日:1999-12-14
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