Thermoplasticity mixed alkylphenol phenolic resin for printing ink and preparation method thereof

A technology of phenolic resin and alkylphenol, which is applied in the field of thermoplastic mixed alkylphenol phenolic resin for ink, can solve the problem of low free phenol content, achieve good storage stability, excellent physical and chemical resistance, and moderate fixation time.

Active Publication Date: 2009-12-09
CHINA BANKNOTE INK +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The resin has a low free phenol content and is especially suitable for the production o

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0054] Example 1

[0055]Add 56 g of p-tert-butylphenol, 27 g of p-tertylphenol, 44 g of 37% formaldehyde solution and 3.2 g of oxalic acid into a 250ml three-necked flask, heat it to melt, turn on stirring after melting, and increase the temperature at 110°C. After reacting for 2 hours, the low-boiling small molecular substances are removed by vacuum, and the material is discharged after the temperature reaches 130°C to obtain a mixed alkylphenol phenolic resin.

[0056] The color number of the obtained resin is No. 4; the softening point of the resin is 115°C; the molecular weight: Mn=910, Mw / Mn=1.4; the free p-tert-butylphenol content is 1.13%, and the free p-tert-butylphenol content is 2.57%; n-heptane tolerance: >100mL / 2g.

[0057] Examples of binder prepared by using the resin of the present invention, linseed oil, and n-heptane:

[0058] Component weight percentage

[0059] Phenolic resin of the present invention 55%

[0060] Linseed oil 30%

[0061] Petroleum solvent (dist...

Example Embodiment

[0075] Example 2

[0076] Add 50g of p-tert-butylphenol, 18g of p-dodecylphenol, 32.5g of formaldehyde solution with a weight concentration of 37% and 0.34g of hydrochloric acid into a 250ml three-necked flask, heat it to melt, turn on the stirring and increase the temperature after melting. Under the conditions, after reacting for 3 hours, the low-boiling-point small-molecule substances are removed by vacuuming, and the material is discharged after the temperature reaches 200°C to obtain a mixed alkylphenol phenolic resin.

[0077] The color number of the obtained resin is No. 6; the softening point of the resin is 98°C; the molecular weight: Mn=834, Mw / Mn=1.3; the content of free p-tert-butylphenol is 2.45%, and the content of free p-dodecylphenol It is 1.25%; n-heptane tolerance: >100mL / 2g.

[0078] Examples of binder prepared by using the resin of the present invention, linseed oil, and n-heptane:

[0079] Component weight percentage

[0080] Phenolic resin of the present inve...

Example Embodiment

[0097] Example 3

[0098] Add 53g of p-tert-butylphenol, 20g of p-tertylphenol, 10g of cardanol, 20g of paraformaldehyde and 0.42g of p-toluenesulfonic acid into a 250ml three-necked flask, heat it to melt, turn on stirring after melting, and increase the temperature at 100℃ Under the conditions of 4 hours of reaction, the low-boiling small molecular substances are removed by vacuuming, and the material is discharged after the temperature reaches 210°C to obtain a mixed alkylphenol phenolic resin.

[0099] The color number of the obtained resin is No. 9; the softening point of the resin is 96°C; the molecular weight: Mn=870, Mw / Mn=1.6; the free p-tert-butylphenol content is 1.40%, and the free p-tert-butylphenol content is 2.11%; n-heptane tolerance: >100mL / 2g.

[0100] Examples of binder prepared by using the resin of the present invention, linseed oil, and n-heptane:

[0101] Component weight percentage

[0102] Phenolic resin of the present invention 52%

[0103] Soybean oil 3%...

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Abstract

The invention discloses thermoplasticity mixed alkylphenol phenolic resin for printing ink and a preparation method thereof. The preparation method comprises the following steps: more than two mixed alkylphenol react with aldehyde under the action of acidic catalyst to obtain thermoplasticity mixed alkylphenol phenolic resin for printing ink; the mixed alkylphenol is the mixture of two or more than two alkylphenol with alkyl group being C1-C30 or vegetable oil phenol. The invention takes account of resin dissolubility and solvent release property; a binder synthesized by the resin has the advantages of favourable storage stability, light color, moderate fixation time and the like; the prepared prinking ink has favourable printability, drying property, film-forming property and materialization resistance.

Description

technical field [0001] The invention relates to a thermoplastic phenolic resin prepared from various alkylphenols, in particular to a thermoplastic mixed alkylphenol phenolic resin for ink. Background technique [0002] There are two main types of phenolic resins used in the ink industry: one is rosin-modified phenolic resins, which are widely used in glue and printing inks; the other is oil-soluble alkylphenol pure phenolic resins. Resinoids include two types, RESOLE type (thermosetting) and NOVOLAC type (thermoplastic). [0003] Oil-soluble alkylphenol pure phenolic resin is superior to rosin-modified phenolic resin in terms of chemical resistance, yellowing resistance, and weather resistance. NOVOLAC type (thermoplastic) phenolic resin has no methylol group on the terminal group. It is generally considered to be soluble in dry oil without reaction. It is used in gravure ink to improve the physical and chemical resistance of printed matter such as alkali resistance, soap ...

Claims

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Application Information

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IPC IPC(8): C08G8/04C08G8/12C09D11/10C09D11/103
Inventor 孙明珠孙军飞章星姚卫吴昊
Owner CHINA BANKNOTE INK
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