Urethane-acrylate copolymer and photoresist composition thereof
A technology of urethane acrylate and acrylate, which is applied in the field of photoresist to achieve the effect of improving heat resistance and hardness, good comprehensive performance and excellent adhesion
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Examples
Embodiment 1
[0022] (1) Preparation of polyurethane acrylate monomer (PUA): add isophorone diisocyanate (IPDI) 133.38g and dilauric acid di Butyl tin (DBTDL) 0.42g, then add 0.31g polymerization inhibitor 2,6-di-tert-butyl-p-cresol, add dropwise 80.41g hydroxyethyl methacrylate at 45°C, keep the temperature for 2h, then raise the temperature to 60 °C, 25 g of anhydrous methanol was added to finally obtain a urethane acrylate monomer. The whole process measures the NCO group content during the reaction by the toluene-di-n-butylamine back titration method, and proceeds to the next step of reaction when it is close to the theoretical NCO value.
[0023] (2) Preparation of polyurethane acrylate copolymer: Add 40g of propylene glycol methyl ether acetate into a 250ml four-necked round-bottomed flask equipped with a thermometer, a reflux condenser, and a stirrer, raise the temperature to 85°C and allow it to reflux, and then drop A monomer mixture mixed with 2.4 g of initiator azobisisobutyroni...
Embodiment 2
[0026] (1) Preparation of polyurethane acrylate monomer (PUA): add isophorone diisocyanate (IPDI) 133.38g and dilauric acid di Butyl tin (DBTDL) 0.42g, then add 0.31g polymerization inhibitor 2,6-di-tert-butyl-p-cresol, add dropwise 80.41g hydroxyethyl methacrylate at 45°C, keep the temperature for 2h, then raise the temperature to 60 °C, 25 g of anhydrous methanol was added to finally obtain a urethane acrylate monomer. The whole process measures the NCO group content during the reaction by the toluene-di-n-butylamine back titration method, and proceeds to the next step of reaction when it is close to the theoretical NCO value.
[0027] (2) Preparation of polyurethane acrylate copolymer: Add 40g of propylene glycol methyl ether acetate into a 250ml four-necked round-bottomed flask equipped with a thermometer, a reflux condenser, and a stirrer, raise the temperature to 85°C and allow it to reflux, and then drop A monomer mixture with 2.1 g of initiator azobisisobutyronitrile,...
Embodiment 3
[0030] (1) Preparation of polyurethane acrylate monomer (PUA): add isophorone diisocyanate (IPDI) 133.38g and dilauric acid di Butyl tin (DBTDL) 0.42g, then add 0.31g of polymerization inhibitor 2,6-di-tert-butyl-p-cresol, drop 71.82g of hydroxyethyl acrylate at 45°C, keep the temperature for 2h, then raise the temperature to 60°C, 25 g of anhydrous methanol was added to finally obtain a urethane acrylate monomer. The whole process measures the NCO group content during the reaction by the toluene-di-n-butylamine back titration method, and proceeds to the next step of reaction when it is close to the theoretical NCO value.
[0031] (2) Preparation of polyurethane acrylate copolymer: Add 40g of propylene glycol methyl ether acetate into a 250ml four-necked round-bottomed flask equipped with a thermometer, a reflux condenser, and a stirrer, raise the temperature to 85°C and allow it to reflux, and then drop A monomer mixture mixed with 2.4 g of initiator azobisisobutyronitrile, ...
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Description
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Application Information
- IPC
- C08F220/18; C08F220/36; C08F220/06; C08F220/28; G03F7/004; G03F7/027
- Inventors
- 刘敬成; 刘秋华