Fluorochemical adhesive material and laminate made with same
A laminated body, adhesive technology, applied in the direction of synthetic resin layered products, applications, rigid containers, etc., can solve problems such as direct bonding methods that are not clearly documented
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Synthetic example 1
[0315] Synthesis Example 1 (Synthesis of Fluoropolymer with Carbonate Group)
[0316] Add 1 liter of deoxygenated water to a glass-lined autoclave with an inner volume of 4 liters. After vacuuming, add 400 g of perfluorocyclobutane and 800 g of hexafluoropropylene, keep the temperature in the tank at 35 ° C, and the stirring speed at 580 rpm . Further adding formula (iii)
[0317] CH 2 =CF(CF 2 ) 3 H (iii)
[0318] After shown perfluorinated (1,1,5-trihydro-1-pentene) 2.0g and cyclohexane 0.85g, pass into the mixed gas of tetrafluoroethylene / ethylene / perfluorocyclobutane (molar ratio=78.9 : 16.6: 4.5) until the pressure is 12kgf / cm 2 g.
[0319] Then, 8.0 g of di-n-propyl peroxydicarbonate was added to start polymerization. As the polymerization proceeds, the pressure drops, so an additional mixture of tetrafluoroethylene / ethylene / perfluorocyclobutane (molar ratio=52.8:42.7:4.5) is added to keep the polymerization pressure at 12kgf / cm 2 While the polymerization was co...
Synthetic example 2
[0320] Synthesis Example 2 (Synthesis of Fluoropolymer with Carbonate Group)
[0321] 400 liters of pure water was added to a 1000 liter stainless steel autoclave, and after the system was fully replaced with nitrogen, vacuum was drawn and 270 kg of perfluorocyclobutane was added. Then, 330 g of cyclohexane and 950 g of perfluoro(1,1,5-trihydro-1-pentene) (compound of formula (iii)) were injected under nitrogen pressure to keep the temperature in the system at 35°C.
[0322] While stirring, press in the mixed gas of tetrafluoroethylene / ethylene (96:4% (mol)) obtained by mixing in advance to make the internal pressure reach 12kgf / cm 2 g. Then, 1.2 kg of a 50% methanol solution of di-n-propyl peroxydicarbonate was injected with nitrogen pressure to start the reaction. As the polymerization reaction proceeds, the pressure decreases. Therefore, the pre-mixed tetrafluoroethylene / ethylene (67:33% (mol)) mixed gas is additionally supplied to keep the system internal pressure at 12k...
Synthetic example 3
[0324] Synthesis Example 3 (Synthesis of Fluoropolymer with Carbonate Group)
[0325] Except that the amount of perfluorocyclobutane and hexafluoropropylene added initially is 600g and 600g, the amount of cyclohexane added is 1.6g, and the amount of di-n-propyl peroxydicarbonate is 10.0g, repeat the same synthesis The same operation as Example 1 was carried out for 8 hours to obtain 153 g of powdery polymer. The physical properties of the obtained polymers are listed in Table 1.
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