Preparation method of polyacrylate-polyurethane resin for printing ink

A technology of polyacrylate and polyurethane resin, which is applied in the field of preparation of polyacrylate-polyurethane resin for gravure printing ink, which can solve the problems such as the influence of resin performance, and achieve stable resin performance, good wetting and dispersibility, and good fluidity Effect

Inactive Publication Date: 2014-11-19
山西省应用化学研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Both of the above two ink resins have good adhesion fastness to various plastic film substrates (BOPP, PET, PA, PVC, PE, PC, etc.), but because the content of polyurethane in the resin is much lower than that of polyacrylate, it makes Properties of polyacrylate-polyurethane resins are compromised

Method used

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  • Preparation method of polyacrylate-polyurethane resin for printing ink
  • Preparation method of polyacrylate-polyurethane resin for printing ink

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] 1) Take 150g of methyl methacrylate, 128g of n-butyl acrylate, 23.2g of hydroxyethyl acrylate, 2.16g of acrylic acid, 2.84g of glycidyl methacrylate, and add them into the reactor together with 200g of ethyl acetate, stir and heat up to 69°C, uniformly add an initiator solution consisting of 4.7g of azobisisobutyronitrile and 200g of ethyl acetate to the reactor within 3 hours for free radical polymerization, continue the reaction for 3 hours after the addition, and then add 0.5g of azobisisobutyronitrile Azodiisobutyronitrile, 171.6g ethyl acetate and 142.9g isopropanol were reacted for another 2 hours, and the polyacrylate resin with epoxy groups was obtained after cooling down, with a solid content of 30wt%, a number average molecular weight of 16115, and a glass transition The temperature is 8°C.

[0031] 2) Mix 250g of vacuum-dried polyneopentyl glycol adipate (number average molecular weight 2000) with 52.7g of isophorone diisocyanate and 0.025g of dibutyltin dila...

Embodiment 2

[0034] 1) Take 125g of methyl methacrylate, 92g of 2-ethylhexyl acrylate, 13g of hydroxyethyl methacrylate, 1.29g of methacrylic acid, 2.13g of glycidyl methacrylate, and add them together with 152g of ethyl acetate In the reactor, stir and raise the temperature to 69°C. Within 3 hours, uniformly add an initiator solution consisting of 3.6g of azobisisobutyronitrile and 152g of ethyl acetate into the reactor for free radical polymerization reaction. After the addition is complete, continue the reaction for 3 hour, then add 0.4g azobisisobutyronitrile, 131.7g ethyl acetate and 108.9g isopropanol, react for 2 hours again, cool down to get the polyacrylate resin with epoxy group, solid content 30wt%, several The average molecular weight is 15561, and the glass transition temperature is 9°C.

[0035]2) Mix 180g of vacuum-dried polyneopentyl glycol adipate (number average molecular weight 2000) with 40g of isophorone diisocyanate and 0.018g of dibutyltin dilaurate, and heat up to 6...

Embodiment 3

[0038] 1) Take 172g of vinyl acetate, 100g of ethyl acrylate, 43.2g of hydroxypropyl methacrylate, 3.44g of methacrylic acid, 1.42g of glycidyl methacrylate, and put them into the reactor together with 209g of ethyl acetate, stir and raise the temperature To 73°C, uniformly add an initiator solution consisting of 3.5g of azobisisobutyronitrile and 209g of ethyl acetate to the reactor within 3 hours for free radical polymerization, continue the reaction for 3 hours after the addition, and then add 0.34g Azobisisobutyronitrile, 179.5g ethyl acetate and 149.4g isopropanol were reacted for another 2 hours, and the temperature was lowered to obtain a polyacrylate resin with epoxy groups, with a solid content of 30wt%, a number average molecular weight of 26013, and vitrification The transition temperature is 13°C.

[0039] 2) Mix 250g of vacuum-dried polypropylene glycol (number-average molecular weight 2000) with 50g of isophorone diisocyanate and 0.037g of dibutyltin dilaurate, a...

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Abstract

The invention relates to a preparation method of polyacrylate-polyurethane resin for printing ink. The preparation method comprises the following steps: respectively preparing polyacrylate resin with epoxy groups, and polyurethane resin with amine groups, mixing the polyacrylate resin with epoxy groups with polyurethane resin with amine groups, so as to enable the epoxy groups and amine groups to react, to obtain the polyacrylate-polyurethane resin with a chemical bond connection structure. The prepared polyacrylate-polyurethane resin is wide in adjustment range of polyurethane content, stable in resin performances, excellent in pigment wetting and dispersity properties, and economical and environment-friendly as alcohol and ester solvents are used, the preparation method can be used for preparing single-component intaglio printing ink, and the prepared printing ink is high in tinting strength, good in mobility, stable in status, high in printing adaptability and excellent in effects.

Description

technical field [0001] The invention relates to a preparation method of a resin for gravure printing ink, in particular to a preparation method of a polyacrylate-polyurethane resin for gravure printing ink. Background technique [0002] The rapid development of flexible packaging industry has promoted the continuous development of gravure printing ink technology and market. Polyurethane has good low temperature resistance, abrasion resistance, solvent resistance, good elasticity and high gloss, and occupies an important position in resins for gravure printing inks. However, the water resistance and weather resistance of polyurethane are poor, and the price is high, which limits its wide application. Polyacrylate has good water resistance and weather resistance, and its price is low, but its elasticity is poor, and it has the disadvantage of hot stickiness and cold brittleness. Therefore, it has a good complementarity with polyurethane. Polyacrylate-polyurethane resin combi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G81/02C08F220/14C08F220/32C08F220/18C08F220/28C08F218/08C08F212/08C08G18/66C08G18/42C08G18/48C08G18/10C09D11/102
Inventor 张博石红翠毛祖秋郭晓勇姚卫琴牛润林贾金兰侯彩英马国章
Owner 山西省应用化学研究所
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