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Cheap dicyclopentadiene modified unsaturated polyester resin and preparation method thereof

A technology of dicyclopentadiene and polyester resin, applied in polyester coatings, coatings, etc., can solve the problems that resins do not have relevant properties and cannot be used in synthetic paints, and achieve low price, no peeling, and good fullness Effect

Inactive Publication Date: 2015-01-28
YINGDE YAJIA PAINT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The advantage of the present invention is that the products of the obtained UPR have more excellent heat resistance, and the heat distortion temperature is greater than 100°C, which is better than the level of the prior art. use as synthetic paint

Method used

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  • Cheap dicyclopentadiene modified unsaturated polyester resin and preparation method thereof
  • Cheap dicyclopentadiene modified unsaturated polyester resin and preparation method thereof
  • Cheap dicyclopentadiene modified unsaturated polyester resin and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026]

[0027] The process steps are as follows:

[0028] (1) Put component A (glycerin 70, maleic anhydride 450, water 95, antioxidant 0.40) into the reactor, heat up to 80°C, stop heating, naturally heat up to 105°C, and keep constant temperature;

[0029] (2) Put component B (dicyclopentadiene 550) into the high-level tank, and drop it into the reaction kettle within 2 hours. After the titration, raise the temperature to 120°C and keep it warm for 2.5 hours;

[0030] (3) Add component C (propylene glycol 65, glycerin 210, fumaric acid 120, hydroquinone 0.1, toluene 30) into the reaction kettle, after adding, heat up to reflux temperature 130°C and keep warm for 0.5 hours;

[0031] (4) Slowly raise the temperature to 190°C within 2 hours, keep the constant temperature until the acid value≦35mgKOH / g (100%), and cool down to 120°C when the viscosity is 12s;

[0032] (5) Put in component D (styrene 470, methyl hydroquinone 0.08, copper naphthenate 0.04), and dilute to comp...

Embodiment 2

[0034]

[0035] The process steps are as follows:

[0036] (1) Put component A (glycerin 75, maleic anhydride 420, water 95, antioxidant 0.50) into the reactor, heat up to 80°C, stop heating, naturally heat up to 108°C, and keep constant temperature;

[0037] (2) Put component B (dicyclopentadiene 555) into the high-level tank, and drop it into the reaction kettle within 2 hours. After the titration, raise the temperature to 120°C and keep it warm for 2.5 hours;

[0038] (3) Add component C (propylene glycol 70, glycerin 210, fumaric acid 120, hydroquinone 0.10, toluene 30) into the reaction kettle, after adding, heat up to reflux temperature 130°C and keep warm for 0.5 hours;

[0039] (4) Slowly raise the temperature to 190°C within 2 hours, keep the constant temperature until the acid value≦35mgKOH / g (100%), and cool down to 120°C when the viscosity is 12s;

[0040] (5) Put in component D (styrene 470, methyl hydroquinone 0.08, copper naphthenate 0.04), and dilute to com...

Embodiment 3

[0042]

[0043] The process steps are as follows:

[0044] (1) Put component A (glycerin 80, maleic anhydride 400, water 95, antioxidant 0.60) into the reactor, heat up to 80°C, stop heating, naturally heat up to 110°C, and keep constant temperature;

[0045](2) Put component B (dicyclopentadiene 560) into the high-level tank, and drop it into the reaction kettle within 2 hours. After the titration, raise the temperature to 120°C and keep it warm for 2.5 hours;

[0046] (3) Add component C (propylene glycol 75, glycerin 210, fumaric acid 130, hydroquinone 0.10, toluene 35) into the reaction kettle, after adding, heat up to reflux temperature 130°C, and keep warm for 0.5 hours;

[0047] (4) Slowly raise the temperature to 190°C within 2 hours, keep the constant temperature until the acid value≦35mgKOH / g (100%), and cool down to 120°C when the viscosity is 12s;

[0048] (5) Put in component D (styrene 480, methyl hydroquinone 0.08, copper naphthenate 0.04), and dilute to com...

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Abstract

The invention discloses a cheap dicyclopentadiene modified unsaturated polyester resin and a preparation method thereof. The preparation method comprises the following steps: adding a component A (comprising 70-80 pars of glycerin, 400-450 parts of maleic anhydride, 95-100 parts of water and 0.40-0.60 parts of an antioxidant) into a reaction kettle, heating to 80DEG C, stopping heating, naturally heating to 105-110DEG C, and keeping the temperature constant; adding a component B (550-560 parts of dicyclopentadiene) to an elevated tank in a dropwise manner within 2h, heating to 120DEG C, and carrying out heat insulation for 2.5h; adding a component C to the reaction kettle, heating to a refluxing temperature of 130DEG C, and carrying out heat insulation for 0.5h; slowly heating to 190DEG C within 2h, maintaining the temperature constant, and cooling to 120DEG C when the acid value is not more than 35mgKOH / g (100%) and the viscosity is 12-14s; and adding a component D (comprising 470-480 parts of styrene, 0.08 parts of methylhydroquinone and 0.04 parts of copper naphthenate), and diluting to complete the production. The resin prepared in the invention has the characteristics of low price, high gloss, good levelability, good fullness and good greening effect.

Description

technical field [0001] The invention relates to the field of preparation of dicyclopentadiene modified unsaturated polyester resin, in particular to a cheap dicyclopentadiene modified unsaturated polyester resin and a preparation method thereof. Background technique [0002] Polymer materials have a huge impact on human production and life. At present, its synthetic raw materials mainly depend on petroleum. However, the oil reserves on earth are only enough for a few decades at most. In order to find resources that can replace petroleum and protect the environment, it is wise to develop renewable resources. However, in traditional paints, most of the air-drying PE resins used in wood primers are synthesized by diethylene glycol and DPCD. It is easy to wrinkle when it is dry, the gloss is poor, the leveling is not good, and the fullness is poor. [0003] In the Chinese patent with the application number "201110002171.4", an invention patent entitled "Using Tung Oil to Mod...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G63/91C08G63/52C09D167/06
Inventor 刘文革练伟城
Owner YINGDE YAJIA PAINT
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