A sports protective lens resin monomer, preparation method and production system thereof
A resin monomer and lens technology, applied in the preparation of carboxylic acid esters, chemical instruments and methods, and the preparation of organic compounds, to achieve the effects of increasing heating or cooling efficiency, improving production efficiency, and saving heating or cooling time
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Embodiment 1
[0036] A sports protective lens resin monomer, the parts by weight of each component are:
[0037]
[0038] The sum of the parts by weight of the above components is 100 parts.
[0039]A method for preparing the sports protective lens resin monomer as described above, the preparation method comprising the following steps:
[0040] S1, put the following components by mass: 900 parts of dimethyl isophthalate, 990 parts of allyl alcohol and 9 parts of catalyst calcium hydroxide into the replacement reactor, stir at normal pressure and heat up to 95 °C, and then keep stirring After 17 hours of reaction, a substitution reaction occurs to generate a diallyl isophthalate crude product; the substitution reactor is provided with a condensation reflux device, and the allyl alcohol vapor generated in the reaction process is condensed and refluxed, and the uncondensed gas and the methanol vapor generated by the reaction are reflowed. Methanol is recovered through three-stage condensat...
Embodiment 2
[0046] A sports protective lens resin monomer, the parts by weight of each component are:
[0047]
[0048] The sum of the parts by weight of the above components is 100 parts.
[0049] A method for preparing the sports protective lens resin monomer as described above, the preparation method comprising the following steps:
[0050] S1, put the following components by mass: 1100 parts of dimethyl isophthalate, 810 parts of allyl alcohol and 11 parts of catalyst calcium hydroxide into the replacement reactor, stir at normal pressure and heat up to 115 °C, and then keep stirring After 21 hours of reaction, a substitution reaction occurs to generate diallyl isophthalate crude product; the substitution reaction kettle is equipped with a condensation reflux device, and the allyl alcohol vapor generated in the reaction process is refluxed after condensation, and the uncondensed gas and the methanol vapor generated by the reaction are reflowed. Methanol is recovered through three-...
Embodiment 3
[0056] A sports protective lens resin monomer, the parts by weight of each component are:
[0057]
[0058] The sum of the parts by weight of the above components is 100 parts.
[0059] A method for preparing the sports protective lens resin monomer as described above, the preparation method comprising the following steps:
[0060] S1, put the following components by mass: 1,000 parts of dimethyl isophthalate, 900 parts of allyl alcohol and 10 parts of catalyst calcium hydroxide into the replacement reactor, stir at normal pressure and heat up to 105°C, and then keep stirring After reacting for 19 hours, a substitution reaction occurred to generate crude diallyl isophthalate; the substitution reaction kettle was equipped with a condensation reflux device, and the allyl alcohol vapor produced in the reaction process was condensed and refluxed, and the uncondensed gas and the methanol vapor generated by the reaction were reflowed. Methanol is recovered through three-stage co...
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