The present application relates to an encapsulating composition and an organic electronic device comprising the same, and provides an encapsulating composition which can effectively block moisture or oxygen introduced into an organic electronic device from the outside to secure the lifetime of the organic electronic device, can implement a top-emitting organic electronic device, can be applied in an inkjet method, can provide a thin display and can effectively prevent interference of an electromagnetic field due to a low dielectric constant.

A cationic curable composition that generates a silanol group by light irradiation and is cured by heat, the cationic curable composition including: a cationic curable component; porous particles holding an aluminum chelate; and a photodegradable silicon compound that generates a silanol group by photodegradation.

Provided is a cationic curing agent including porous particles and a mixture carried on the porous particles. The mixture includes a compound represented by Formula (1) below in which R.sup.1 to R.sup.3 are identical and R.sup.1 to R.sup.6 are identical and a compound represented by Formula (1) below in which at least one of R.sup.1 to R.sup.6 is different.

##STR00001##

In Formula (1), R.sup.1 to R.sup.3 are each an optionally branched alkyl group having from 1 to 18 carbon atoms, or a phenyl group that may have a substituent, and R.sup.4 to R.sup.6 are each a hydrogen atom, an optionally branched alkyl group having from 1 to 4 carbon atoms, a halogenoalkyl group, an alkoxy group, or a phenoxy group that may have a substituent.

A curable resin composition includes (A) a specific curable resin and (C) a curing agent, and further includes (BI) 0.1 parts by mass or more and 20 parts by mass or less of a polyhydric alcohol having 2 to 5 hydroxyl groups, based on based on 100 parts by mass of the curable resin (A); (BII) a cyclic compound having 3 to 6 reactive groups and a reactive group equivalent of 100 g/eq or more and 300 g/eq or less; or (BIII) a specific oxetane compound in a mass ratio of the curable resin (A) to the oxetane compound (BIII) being 5:5 to 9:1.

A curable resin composition includes (A) a specific curable resin and (C) a curing agent, and further includes (BI) 0.1 parts by mass or more and 20 parts by mass or less of a polyhydric alcohol having 2 to 5 hydroxyl groups, based on based on 100 parts by mass of the curable resin (A); (BII) a cyclic compound having 3 to 6 reactive groups and a reactive group equivalent of 100 g/eq or more and 300 g/eq or less; or (BIII) a specific oxetane compound in a mass ratio of the curable resin (A) to the oxetane compound (BIII) being 5:5 to 9:1.

The invention relates to the use of a polymer P as antifoaming agent, the polymer P being a linear polymer prepared by polymerization of monomer chosen from monomer M1, monomer M2, or monomer M1 and monomer M2 monomer M1 having the following formula (I): wherein R.sup.1 and R.sup.2, independently of each other, is chosen from: —a benzyl, —a (C.sub.1-C.sub.12)alkyl group optionally substituted by a —O—(C.sub.1-C.sub.12)alkyl group, and —a (C.sub.3-C.sub.12)cycloalkyl group optionally substituted by a —O—(C.sub.1-C.sub.12)alkyl group, monomer M2 having the following formula (II): wherein R4 represents: a (C.sub.1-C.sub.12)alkyl group or a —CH.sub.2—O—R.sup.5 group, wherein R.sup.5 is chosen from: a benzyl, a (C.sub.1-C.sub.12)alkyl group optionally substituted by a —O(C.sub.1-C.sub.12)alkyl, and a (C.sub.3-C.sub.12)cycloalkyl group optionally substituted by a —O—(C.sub.1-C.sub.12)alkyl group, R.sup.3 represents a (C.sub.1-C.sub.12)alkyl group, or R.sup.3 and R.sup.4 form together, with the carbon atom bearing them, a ((C.sub.3-C.sub.12)cycloalkyl group.

##STR00001##

The invention relates to the use of a polymer P as antifoaming agent, the polymer P being a linear polymer prepared by polymerization of monomer chosen from monomer M1, monomer M2, or monomer M1 and monomer M2 monomer M1 having the following formula (I): wherein R.sup.1 and R.sup.2, independently of each other, is chosen from: —a benzyl, —a (C.sub.1-C.sub.12)alkyl group optionally substituted by a —O—(C.sub.1-C.sub.12)alkyl group, and —a (C.sub.3-C.sub.12)cycloalkyl group optionally substituted by a —O—(C.sub.1-C.sub.12)alkyl group, monomer M2 having the following formula (II): wherein R4 represents: a (C.sub.1-C.sub.12)alkyl group or a —CH.sub.2—O—R.sup.5 group, wherein R.sup.5 is chosen from: a benzyl, a (C.sub.1-C.sub.12)alkyl group optionally substituted by a —O(C.sub.1-C.sub.12)alkyl, and a (C.sub.3-C.sub.12)cycloalkyl group optionally substituted by a —O—(C.sub.1-C.sub.12)alkyl group, R.sup.3 represents a (C.sub.1-C.sub.12)alkyl group, or R.sup.3 and R.sup.4 form together, with the carbon atom bearing them, a ((C.sub.3-C.sub.12)cycloalkyl group.

##STR00001##

The present disclosure belongs to the field of organic synthesis, and particularly relates to a ring-opening polymerization method for a cyclic monomer. A specific solution is that a Lewis acid-base pair is used to catalyze ring-opening polymerization of the cyclic monomer in the presence of an initiator. By using the Lewis acid-base pair as a catalyst, on one hand, a range of a ring-opening polymerization catalyst is widened, and on the other hand, this catalyst achieves a higher catalytic efficiency and is milder in comparison with previously reported strong acid or strong base catalysts. In addition, through a bifunctional activation mechanism, this catalyst system activates the monomer and simultaneously activates the initiator or a chain end, and has the characteristics of high efficiency in comparison with the reported monomer activation mechanism or chain end activation mechanism. By adopting the catalyst, a polyester product with a target molecular weight can be synthesized in a controlled manner as required, with a narrower molecular weight distribution index, a high product yield, a high product conversion rate and no monomer or metal residues.

Epoxide functionalized polyaromatic feedstocks and processes for their preparation are described. The processes involve functionalizing polyaromatic hydrocarbon molecules and/or polyheterocyclic molecules present in petroleum or petrochemical streams with epoxide. The epoxide functionalized poly aromatic feedstock can be further treated so as to effect oligomerization or polymerization. The oligomers or polymers may be thermoplastic or thermoset materials and may find use in, for example, infrastructure applications, composites, fillers, fire retardants and 3-D printing materials.

Epoxide functionalized polyaromatic feedstocks and processes for their preparation are described. The processes involve functionalizing polyaromatic hydrocarbon molecules and/or polyheterocyclic molecules present in petroleum or petrochemical streams with epoxide. The epoxide functionalized poly aromatic feedstock can be further treated so as to effect oligomerization or polymerization. The oligomers or polymers may be thermoplastic or thermoset materials and may find use in, for example, infrastructure applications, composites, fillers, fire retardants and 3-D printing materials.