- A contains the amine structure light-cured monomer and its preparation method (by machine translation)
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The invention discloses a containing amine structure photo-polymerization of the monomer, involves the high molecular material synthesis field, based on the existing light curing system to initiate the medicinal preparation is easy from solidifying the coating in question of the migration, it has the following chemical structural formula: The invention also discloses the above-mentioned optical polymerization monomer preparation method, comprises the following steps: (1) methyl glycidyl acrylate and acrylic acid in the catalyst and the polymerization inhibitor of reaction; (2) instillment zhongzhong amine; (3) the purification of the reaction product; the beneficial effect of the present invention is characterized in that: the reaction process is simple, easy to control the process conditions, severe corrosion structure introduced into the polymerization system, can obtain certain property of antioxidant polymerization, so as to obtain better surface curing performance, while avoiding the migration of small molecule compounds, to prevent adverse effects on the light curing system. (by machine translation)
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Page/Page column 6-8
(2019/06/07)
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- A dental repair material for methyl acrylate monomer and its preparation method
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The invention discloses a dental repair material for methyl acrylate monomer, involves the high molecular material synthesis field, based on the existing light curing system for use in the medicinal preparation is easy from the amine helps initiate curing system in question of the migration, it has the following Chemical structural formula: The invention also discloses the preparation method of the monomer, comprising the following steps: (1) weighing methyl glycidyl acrylate and acrylic acid, the reaction is carried out to add catalyst and polymerization inhibitor; (2) to the reaction system to continue the reaction drop [...] compound; (3) after the reaction, reaction product to washing and drying; the beneficial effect of the present invention is characterized in that the: effective to avoid amine migration, thus prevent from dental repair material migrate in the precipitation, affect the applicability of the dental restoration material.
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Page/Page column 4-7
(2019/07/04)
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- METHOD FOR PRODUCING HYDROXYALKYL(METH)ACRYLATES
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The present invention relates to a continuous process for preparing hydroxyalkyl (meth)acrylates, more particularly those hydroxyalkyl (meth)acrylates which have more than one (meth)acrylate group per molecule.
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Page/Page column 4
(2012/11/07)
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- Process for preparing hydroxyalkyl(meth) acrylates using Lewis acid catalysts
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The present invention relates to a process for preparing hydroxyalkyl (meth)acrylates by reacting at least one compound A which contains at least one epoxide group with at least one compound B which contains at least one carboxylic acid group, wherein A and/or B also contains at least one (meth)acrylate group, in the presence of Lewis acid catalysts, each of which contains at least one directly bonded di(cyclo)alkylamino group.
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Page/Page column 4
(2008/06/13)
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- Reactivity of some carboxylic acids in reactions with some epoxides in the presence chromium (III) ethanoate
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Reactivities have been compared of acetic, acrylic, and methacrylic acid in reactions with epichlorohydrin, phenylglycidyl ether, glycidyl acetate, and glycidyl methacrylate carried in the presence of chromium (III) ethanoate. The acid reactivities changed differently with respect to the oxirane series. The effect of solvents on the reactions of acids with epichlorohydrin has also been observed.
- Bukowska, Agnieszka,Bukowski, Wiktor
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p. 234 - 237
(2013/09/06)
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