Resin for ink and ink

US2019144591A1 · US · A1

Patent metadata
FieldValue
Publication numberUS-2019144591-A1
Application numberUS-201916244570-A
CountryUS
Kind codeA1
Filing dateJan 10, 2019
Priority dateMar 31, 2015
Publication dateMay 16, 2019
Grant date

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

A method for producing a resin for ink which includes reacting a lignin, a phenol, and an aldehyde so as to obtain a lignin-containing resol phenolic resin; and reacting the obtained lignin-containing resol phenolic resin with a rosin-based resin, and polyhydric alcohol.

First claim

Opening claim text (preview).

1 . A method for producing a resin for ink, the method comprising: reacting a lignin, a phenol, and an aldehyde so as to obtain a lignin-containing resol phenolic resin; and reacting the obtained lignin-containing resol phenolic resin with a rosin-based resin, and a polyhydric alcohol. 2 . The method for producing a resin for ink according to claim 1 , comprising: producing the lignin-containing resol phenolic resin by allowing a phenol-modified lignin obtained after allowing the lignin to react with the phenol under the presence of an acid catalyst to react with the aldehyde under the presence of an alkali catalyst. 3 . The method for producing a resin for ink according to claim 1 , wherein the lignin is modified with acetic acid.

Assignees

Inventors

Classifications

  • based on natural resins · CPC title

  • C09D11/103Primary

    of aldehydes, e.g. phenol-formaldehyde resins · CPC title

  • C08G8/34Primary

    by natural resins or resin acids, e.g. rosin · CPC title

  • Modified phenol-aldehyde condensates · CPC title

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Frequently asked questions

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What does patent US2019144591A1 cover?
A method for producing a resin for ink which includes reacting a lignin, a phenol, and an aldehyde so as to obtain a lignin-containing resol phenolic resin; and reacting the obtained lignin-containing resol phenolic resin with a rosin-based resin, and polyhydric alcohol.
Who is the assignee on this patent?
Harima Chemicals Inc
What technology area does this patent fall under?
Primary CPC classification C09D11/103. Mapped technology areas include Chemistry & Metallurgy.
When was this patent published?
Publication date Thu May 16 2019 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).