发明授权
- 专利标题: Erasable ink composition containing a waterborne polyurethane urea
- 专利标题(中): 含有水性聚氨酯脲的可擦除油墨组合物
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申请号: US650592申请日: 1996-05-20
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公开(公告)号: US5852072A公开(公告)日: 1998-12-22
- 发明人: Jeffery H. Banning , Wayne A. Chandler , David C. Villiger , Aiying Wang , Barry W. Chadwick
- 申请人: Jeffery H. Banning , Wayne A. Chandler , David C. Villiger , Aiying Wang , Barry W. Chadwick
- 申请人地址: CT Milford
- 专利权人: Bic Corporation
- 当前专利权人: Bic Corporation
- 当前专利权人地址: CT Milford
- 主分类号: C08G18/38
- IPC分类号: C08G18/38 ; C08G63/685 ; C09B69/10 ; C09D11/16 ; C09D5/00 ; C09D11/00
摘要:
An erasable ink composition contains a water-insoluble polymeric dye obtained from the polymerization of at least two coreactive polyfunctional monomers with at least one of the monomers possessing a dye moiety covalently bonded thereto. The ink is intended for use in any of a variety of marking instruments, in particular, a ball-point pen.
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