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Modified rosin resin, preparation method and printing ink using modified rosin resin

A technology for modifying rosin and resin, which is applied in the field of rosin modification, which can solve the problems of UV-curable inks such as the lack of ecological sustainability, and achieve the effects of shortened reaction time, low energy consumption, and good miscibility

Active Publication Date: 2017-06-30
HUIZHOU HUAHONG NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] At the same time, most of the raw materials of traditional UV-curable inks come from "petroleum" components, which are non-renewable. UV-curable inks themselves lack the development concept of ecological sustainability.

Method used

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  • Modified rosin resin, preparation method and printing ink using modified rosin resin
  • Modified rosin resin, preparation method and printing ink using modified rosin resin
  • Modified rosin resin, preparation method and printing ink using modified rosin resin

Examples

Experimental program
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Effect test

Embodiment 1

[0056] The embodiment of the present invention provides a kind of preparation method of modified rosin resin, comprises the following steps:

[0057] (1) In a 500mL three-necked flask with mechanical stirring and dropping funnel, add 60.5g (0.2mol) rosin and 34.00g (0.1mol) epoxy resin DER331, pass nitrogen to remove oxygen, heat up to 115°C, and react The product was melted, and then 0.76 g of triphenylphosphine was added, and stirred and reacted at 115° C. for 1.5 hours to obtain rosin-epoxy intermediate 1;

[0058] (2) Add 14.70 g (0.15 mol) of maleic anhydride to the rosin-epoxy intermediate 1 and react at 115°C for 2 hours to obtain the modified rosin resin 1.

[0059] The GPC figure of the prepared rosin-epoxy intermediate one is shown in figure 1 ,Such as figure 1 As shown, the GPC curve of rosin-epoxy intermediate 1 moves to the high molecular weight part, and the peaks of raw material rosin and epoxy resin DER331 almost disappear, indicating that rosin and epoxy res...

Embodiment 2

[0066] The embodiment of the present invention provides a kind of preparation method of modified rosin resin, comprises the following steps:

[0067] (1) In a 500mL three-necked flask with mechanical stirring and dropping funnel, add 60.5g (0.2mol) rosin and 34.00g (0.1mol) epoxy resin DER331, pass nitrogen to remove oxygen, heat up to 115°C, and react The product was melted, and then 0.76 g of triphenylphosphine was added, and stirred and reacted at 115° C. for 2 hours to obtain rosin-epoxy intermediate 2;

[0068] (2) Add 9.8 g (0.1 mol) of maleic anhydride to the rosin-epoxy intermediate 2 and react at 115°C for 2 hours to obtain the modified rosin resin 2.

[0069] The number-average molecular weight of the prepared modified rosin resin II measured by GPC was 1110, and the weight-average molecular weight was 1620.

Embodiment 3

[0071] The embodiment of the present invention provides a kind of preparation method of modified rosin resin, comprises the following steps:

[0072] (1) In a 500mL three-necked flask with mechanical stirring and dropping funnel, add 60.5g (0.2mol) rosin and 34.00g (0.1mol) epoxy resin DER331, pass nitrogen to remove oxygen, heat up to 115°C, and react The product was melted, and then 0.76 g of triphenylphosphine was added, and stirred and reacted at 115° C. for 1.5 hours to obtain rosin-epoxy intermediate 3;

[0073] (2) Add 19.6 g (0.2 mol) of maleic anhydride to the rosin-epoxy intermediate 3 and react at 115°C for 2 hours to obtain the modified rosin resin 3.

[0074] The number-average molecular weight of the prepared modified rosin resin 3 measured by GPC was 1350, and the weight-average molecular weight was 1920.

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Abstract

The invention provides modified rosin resin, a preparation method thereof and printing ink using the modified rosin resin. The preparation method of the modified rosin resin comprises the following steps: (1) uniformly mixing rosin, an epoxy compound and a catalyst, reacting at 105-120 DEG C for 1-2.5 h to obtain a rosin-epoxy intermediate; and (2) mixing the rosin-epoxy intermediate obtained in the Step (1) and maleic anhydride, and reacting at 105-120 DEG C for 1-2.5 h to obtain modified rosin resin. The preparation method of the modified rosin resin has remarkable advantages of mild reaction condition, short reaction time, etc. In addition, during the reaction process, no organic solvent is used as a reaction medium, thus avoiding environmental pollution and solvent residue of the product and realizing green and environment-friendly synthesis. As an unsaturated double bond is introduced into the modified rosin resin, the modified rosin resin shows good compatibility, pigment wettability and fast drying speed when applied to UV curable printing ink.

Description

technical field [0001] The invention relates to the field of rosin modification, in particular to a modified rosin resin, a preparation method and an ink using the modified rosin resin. Background technique [0002] Rosin is a natural renewable resource. In recent years, my country produces more than 500,000 tons of rosin every year, ranking first in the world. Rosin is widely used in the fields of resins, adhesives, electronics, and medicine due to its cheapness, non-toxicity, tastelessness, and unique properties. Rosin used in resin can speed up the drying rate of the coating film and enhance the hardness of the resin. However, the structural characteristics of rosin lead to some defects in its performance, such as large crystallization tendency, low softening point and high acid value, which limit its wider application in many industrial sectors. In order to eliminate these performance defects, endow rosin with various excellent properties and increase its use value, it...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C67/08C07C67/26C07C69/753C09F1/04C09D11/08C09D11/101
CPCC07C67/08C07C67/26C07C69/753C09D11/08C09D11/101C09F1/04
Inventor 林剑雄陈传文郑学飞
Owner HUIZHOU HUAHONG NEW MATERIAL
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