[EN] METHOD FOR MANUFACTURING (METH)ACRYLOYL GROUP-CONTAINING POLYOL COMPOUND, (METH)ACRYLOYL GROUP-CONTAINING POLYOL COMPOUND, AND URETHANE (METH)ACRYLATE<br/>[FR] PROCÉDÉ DE FABRICATION DE COMPOSÉ POLYOL CONTENANT DES GROUPES (MÉTH)ACRYLOYLE, COMPOSÉ POLYOL CONTENANT DES GROUPES (MÉTH)ACRYLOYLE, ET (MÉTH)ACRYLATE D'URÉTHANE
申请人:DAINIPPON INK & CHEMICALS
公开号:WO2015000123A1
公开(公告)日:2015-01-08
To provide a simple, efficient method for manufacturing a (meth)acryloyl group-containing polyol compound, a (meth)acryloyl group-containing polyol compound produced by the manufacturing method, and an urethane (meth)acrylate produced by using the compound.A method for manufacturing a (meth)acryloyl group-containing polyol compound (x3) includes the steps of producing a hydroxyl group-containing ketal compound (x1) by reacting a polyol compound (A) having at least three hydroxyl groups in the molecular structure with a cyclic ketone compound (B) at the proportion in which the ratio [(OH)/(CO)] of the number of moles of hydroxyl groups (OH) included in the polyol compound (A) to the number of moles of carbonyl groups (CO) included in the cyclic ketone compound (B) falls within the range of 3 to 12 in an organic solvent (S) in the presence of an acid catalyst, producing a (meth)acrylate compound (x2) by (meth)acrylating hydroxyl groups included in the resulting hydroxyl group-containing ketal compound (x1), and hydrolyzing the resulting (meth)acrylate compound (x2).
Polymerizable esters of 2,2-bis(hydroxymethyl)-1,3-propanediol with acrylic and methacrylic acids and mixtures of acrylic or methacrylic acid and other organic carboxylic acids are disclosed. Polymers of these esters and mixture of esters are crosslinkable and useful in many applications, particularly in protective coatings.
A Facile, Selective Preparation of Monoketals from Pentaerythritol and Ketones
作者:Ricardo Grau、Marcelo Murguía、Santiago Vaillard
DOI:10.1055/s-2001-14569
日期:——
The selective preparation of monoketals 3a-f from pentaerythritol 1 and cyclic, acyclic, aromatic, and aliphatic ketones 2a-f was achieved by a facile method. The extreme polarity and low solubility of pentaerythritol in almost all organic solvents were the main difficulties to be overcome for the preparation of monoketals in good yields and high selectivity. A benzene-dimethylformamide (40:60) mixture proved to be excellent for the ketalization. The one-step procedure developed allowed the preparation of monoketals in good yields and good to excellent selectivity (higher than 90%).