- O-hydroxycyclohexyl acrylate and preparation method thereof.
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The invention relates to o-hydroxycyclohexyl acrylate and a preparation method thereof. The o-hydroxycyclohexyl acrylate is prepared from the following raw materials in molar ratio: epoxy cyclohexaneand methacrylic acid or acrylic acid in molar ratio of 1: (0.8-1.2); and adding a catalyst and a polymerization inhibitor, wherein the mass of the catalyst is 1%-5% of that of the cyclohexene oxide, and the mass of the polymerization inhibitor is 0.5%-2% of that of the cyclohexene oxide. According to the o-hydroxycyclohexyl acrylate and the preparation method thereof, an ester group and a hydroxylgroup are generated by reaction of an epoxy group open loop and a carboxyl group in acrylic acid (or methacrylic acid) and the hydroxyl group has relatively good hydrophilicity; and cyclohexyl is added into the acrylate so that the light transmittance of the acrylate polymer can be increased.
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Paragraph 0019; 0049-0051; 0063-0070
(2020/04/29)
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- (METH)ACRYLIC ESTER HAVING HYDROXYL GROUP ON ALICYCLIC STRUCTURE AND MANUFACTURING METHOD THEREFOR, AND POLYMER USING THE SAME
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PROBLEM TO BE SOLVED: To provide a novel (meth)acrylic acid ester having a hydroxyl group on an alicyclic structure excellent in handleability with high in heat resistance or low in viscosity. SOLUTION: There is provided (meth)acrylic ester represented by the general formula (1). (1), where R represents a hydrogen atom or a methyl group, m and n represent natural numbers, m≥1 when n=1, m≥2 when n=2 and m≥1 when n≥3. The (meth)acrylic ester is obtained by addition reaction of (meth)acrylic ester derivative and epoxide in a presence of a catalyst. COPYRIGHT: (C)2015,JPOandINPIT
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Paragraph 0076-0078; 0113
(2017/01/05)
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- DENTAL MATERIAL, DENTAL MATERIAL COMPOSITION, DENTAL RESTORATIVE MATERIAL, AND CURED PRODUCT
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The present invention provides a dental material, a dental material composition and a dental restorative material that exhibit small polymerization shrinkage particularly during curing and are producible at low cost on the industrial scale. The dental mat
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Page/Page column 33; 36
(2012/12/13)
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- NOVEL COMPOUND, COMPOSITION COMPRISING THE COMPOUND AND CURED PRODUCT
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The present invention provides a novel compound and a composition including the compound that exhibit small polymerization shrinkage particularly during curing and are producible at low cost on the industrial scale. The compound of the present invention i
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Page/Page column 33-34; 35; 36
(2012/12/13)
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