ALKALI-DEVELOPABLE PHOTOSENSITIVE RESIN COMPOSITION AND BETA-DIKETONE COMPOUND
申请人:Yamada Takashi
公开号:US20100129753A1
公开(公告)日:2010-05-27
An alkali developable photosensitive resin composition contains (J) a photopolymerizable unsaturated compound having a structure resulting from the addition reaction of (B) a compound having a β-diketone moiety or a compound having a β-ketoester group to the (meth)acryloyl group of (A) a compound having at least two (meth)acryloyl groups and a hydroxyl group and subsequent esterification of the hydroxyl group of the resulting addition product with (C) a polybasic acid anhydride. The compound having a β-diketone moiety is preferably a novel β-diketone compound represented by general formula (I):
wherein R
1
is a C1-C20 alkyl group; R
2
represents R
11
, OR
11
, COR
11
, SR
11
, CONR
12
R
13
, or CN; R
11
, R
12
, and R
13
are each hydrogen, a C1-C20 alkyl group, etc.; a is 0 to 3; and b is 0 to 4.
Michael Acceptor Having Multiple Hydroxyl Groups, and Michael Addition Product Derived Therefrom
申请人:Korea Research Institute of Chemical Technology
公开号:US20130331600A1
公开(公告)日:2013-12-12
Provided is a Michael addition product prepared from a multifunctional acryl monomer having multiple hydroxyl groups allowing introduction of acryl functional groups, as a Michael acceptor, and a Michael donor. The Michael addition product is a novel multifunctional compound having an oligomer and a photoinitiator moiety in the molecule. Since it can be cured under a standard UV curing condition without having to add a photoinitiator, it is reduced to air pollution or health problem. Therefore the superior physical properties were obtained by cured coatings without surface tackiness. In addition, its hydroxyl groups allow, through isocyanate bonding or introduction of acryl groups, 3-dimensional crosslinking and molecular and compositional design for improving expandability, friction, and reactivity and hydrophilicity for self-adhesion, hardness of cured film, or the like. Consequently, a very useful, multifunctional or water-dispersible coating composition may be prepared.
[EN] METHOD FOR PREPARATION OF ACETOACETATE ESTER COMPOUNDS<br/>[FR] PROCÉDÉ DE PRÉPARATION DE COMPOSÉS D'ESTER D'ACÉTOACÉTATE
申请人:LONZA SOLUTIONS AG
公开号:WO2021004947A1
公开(公告)日:2021-01-14
The invention discloses a method for preparation of acetoacetate ester compounds with amino alcohol catalysts which are themselves diketenized in the course of the diketenization reaction; and subsequent polymerization of these acetoacetate ester compounds with e.g. acrylate compounds to provide resins, whereby the acetoacetylated amino alcohol catalyst partakes in the polymerization reaction.
[EN] METHOD TO PURIFY TRIS-(3-HYDROXYBUTYRATO)-GLYCERYL ESTER<br/>[FR] PROCÉDÉ DE PURIFICATION D'ESTER TRIS-(3-HYDROXYBUTYRATO)-GLYCÉRIQUE
申请人:DR SCHAER S P A
公开号:WO2021070209A1
公开(公告)日:2021-04-15
The present invention concerns a method to prepare and purify the ester glyceryl-tris-(3 -hydroxybutyrate) of formula (I): and its optically active isomers, in particular the enantiomer (R, R, R).
Nutritive water soluble glycerol esters of hydroxy butyric acid
申请人:Eastman Chemical Company
公开号:US05693850A1
公开(公告)日:1997-12-02
A process for the production of water soluble glycerol esters useful as parenteral nutrients is disclosed. The process comprises the reaction of glycerol or a protected glycerol and an acetoacetate ester or acetoacetate precursor, yielding an acetoacetyl glycerol which is thereafter reduced, providing a glycerol ester of 3-hydroxybutyric acid.