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    • 1. 发明授权
    • Writing instruments with eradicable inks and eradicating fluids
    • 用可清除的墨水和根除液体书写文书
    • US07452146B2
    • 2008-11-18
    • US11761321
    • 2007-06-11
    • David Godbout
    • David Godbout
    • B05C1/00
    • B43K29/05B43K27/12C09D11/16C09D11/18
    • Improved eradicating fluids and eradicable inks are disclosed. A color changing eradicating fluid is disclosed which includes a volatile base, a pH sensitive dye and an eradicating agent whereby the dye changes color as the volatile base evaporates thereby provided a visual indication to the user when the eradicating fluid is sufficiently dry and ready to receive a corrected marking. A non-color changing eradicating fluid having a more moderate pH is also disclosed. The combination eradicable and re-write ink is disclosed which features phosphoric acid (or phosphorus pentoxide in solution) along with an eradicable dye. A combination writing and correction instrument that combines a disclosed eradicating fluid and a combination eradicable and re-write ink is also disclosed.
    • 公开了改进的根除液体和可消除的油墨。 公开了一种变色消除液,其包括挥发性碱,pH敏感染料和根除剂,由此当挥发性碱蒸发时染料改变颜色,从而当消除流体充分干燥并准备接收时向使用者提供视觉指示 校正标记。 还公开了具有更中等pH的非变色根除根除液。 公开了可消除和重写墨水的组合以及可消除染料的磷酸(或溶液中的五氧化二磷)。 还公开了组合了公开的根除液体和组合可消除和重写墨水的组合书写和校正工具。
    • 3. 发明授权
    • Writing instruments with eradicable inks and eradicating fluids
    • 用可清除的墨水和根除液体书写文书
    • US07229487B2
    • 2007-06-12
    • US10756905
    • 2004-01-14
    • David Godbout
    • David Godbout
    • C09D11/16
    • B43K29/05B43K27/12C09D11/16C09D11/18
    • Improved eradicating fluids and eradicable inks are disclosed. A color changing eradicating fluid is disclosed which includes a volatile base, a pH sensitive dye and an eradicating agent whereby the dye changes color as the volatile base evaporates thereby provided a visual indication to the user when the eradicating fluid is sufficiently dry and ready to receive a corrected marking. A non-color changing eradicating fluid having a more moderate pH is also disclosed. The combination eradicable and re-write ink is disclosed which features phosphoric acid (or phosphorus pentoxide in solution) along with an eradicable dye. A combination writing and correction instrument that combines a disclosed eradicating fluid and a combination eradicable and re-write ink is also disclosed.
    • 公开了改进的根除液体和可消除的油墨。 公开了一种变色根除液体,其包括挥发性碱,pH敏感染料和根除剂,由此当挥发性碱蒸发时染料改变颜色,从而当消除流体充分干燥并准备好接收时向使用者提供视觉指示 校正标记。 还公开了具有更中等pH的非变色根除根除液。 公开了可消除和重写墨水的组合以及可消除染料的磷酸(或溶液中的五氧化二磷)。 还公开了组合了公开的根除液体和组合可消除和重写墨水的组合书写和校正工具。
    • 4. 发明申请
    • Writing instruments with eradicable inks and eradicating fluids
    • 用可清除的墨水和根除液体书写文书
    • US20050150423A1
    • 2005-07-14
    • US10756905
    • 2004-01-14
    • David Godbout
    • David Godbout
    • B43K27/12B43K29/05C09D11/16C09D11/18C09D11/00
    • B43K29/05B43K27/12C09D11/16C09D11/18
    • Improved eradicating fluids and eradicable inks are disclosed. A color changing eradicating fluid is disclosed which includes a volatile base, a pH sensitive dye and an eradicating agent whereby the dye changes color as the volatile base evaporates thereby provided a visual indication to the user when the eradicating fluid is sufficiently dry and ready to receive a corrected marking. A non-color changing eradicating fluid having a more moderate pH is also disclosed. The combination eradicable and re-write ink is disclosed which features phosphoric acid (or phosphorus pentoxide in solution) along with an eradicable dye. A combination writing and correction instrument that combines a disclosed eradicating fluid and a combination eradicable and re-write ink is also disclosed.
    • 公开了改进的根除液体和可消除的油墨。 公开了一种变色根除液体,其包括挥发性碱,pH敏感染料和根除剂,由此当挥发性碱蒸发时染料改变颜色,从而当消除流体充分干燥并准备好接收时向使用者提供视觉指示 校正标记。 还公开了具有更中等pH的非变色根除根除液。 公开了可消除和重写墨水的组合以及可消除染料的磷酸(或溶液中的五氧化二磷)。 还公开了组合了公开的根除液体和组合可消除和重写墨水的组合书写和校正工具。
    • 5. 发明申请
    • Writing Instruments With Eradicable Inks And Eradicating Fluids
    • 用不可知的油墨和消除液体书写工具
    • US20070231494A1
    • 2007-10-04
    • US11761321
    • 2007-06-11
    • David Godbout
    • David Godbout
    • B05D1/36B43K5/00
    • B43K29/05B43K27/12C09D11/16C09D11/18
    • Improved eradicating fluids and eradicable inks are disclosed. A color changing eradicating fluid is disclosed which includes a volatile base, a pH sensitive dye and an eradicating agent whereby the dye changes color as the volatile base evaporates thereby provided a visual indication to the user when the eradicating fluid is sufficiently dry and ready to receive a corrected marking. A non-color changing eradicating fluid having a more moderate pH is also disclosed. The combination eradicable and re-write ink is disclosed which features phosphoric acid (or phosphorus pentoxide in solution) along with an eradicable dye. A combination writing and correction instrument that combines a disclosed eradicating fluid and a combination eradicable and re-write ink is also disclosed.
    • 公开了改进的根除液体和可消除的油墨。 公开了一种变色消除液,其包括挥发性碱,pH敏感染料和根除剂,由此当挥发性碱蒸发时染料改变颜色,从而当消除流体充分干燥并准备接收时向使用者提供视觉指示 校正标记。 还公开了具有更中等pH的非变色根除根除液。 公开了可消除和重写墨水的组合以及可消除染料的磷酸(或溶液中的五氧化二磷)。 还公开了组合了公开的根除液体和组合可消除和重写墨水的组合书写和校正工具。