An ester polymer has a structure represented by the following formula (I): ##STR00001##
T represents the backbone of the ester polymer; the group B is each independently selected from O or S; the group R each independently represents C.sub.1-10 hydrocarbylene group; the group A is each independently selected from O, S or NR″; the group R′ each independently represents C.sub.1-10 hydrocarbylene group; the group N.sub.b is each independently selected from H or —R″′—B′H, wherein at least one of the two N.sub.b on the same nitrogen atom is —R″′—B′H; the group R″ is each independently selected from H or C.sub.1-10 hydrocarbyl group; the group R″′ each independently represents C.sub.1-10 hydrocarbylene group; the group B′ is each independently selected from O or S; each y independently represents an integer between 1 and 6; and m is an integer between 1 and 10.

A composition that makes it easy to form a hard coat having both high hardness and high transparency regardless of the surface hardness level of the article to be hard-coated; a method for producing an article having a hard coat using such a composition; a hard coat including a cured product of such a composition; a hard-coated article having such a hard coat; and a silane-modified alicyclic compound suitable for use as a component of such a composition. The composition includes a silane-modified alicyclic compound that is a mixture of products of reaction of an alicyclic tetracarboxylic dianhydride with an aminosilane compound having a specific structure with a hydrolyzable silyl group.

A composition that makes it easy to form a hard coat having both high hardness and high transparency regardless of the surface hardness level of the article to be hard-coated; a method for producing an article having a hard coat using such a composition; a hard coat including a cured product of such a composition; a hard-coated article having such a hard coat; and a silane-modified alicyclic compound suitable for use as a component of such a composition. The composition includes a silane-modified alicyclic compound that is a mixture of products of reaction of an alicyclic tetracarboxylic dianhydride with an aminosilane compound having a specific structure with a hydrolyzable silyl group.

Polymerizable compositions comprising a radically polymerizable resin can be polymerized in the absence of a peroxide initiator and other undesirable components. The polymerizable compositions and methods employ a manganese- or iron-containing salt or organic complex and a 1,3-dioxo compound with one or more other components. The polymerizable compositions have better storage stability and reduced gel time-drift.

Polymerizable compositions comprising a radically polymerizable resin can be polymerized in the absence of a peroxide initiator and other undesirable components. The polymerizable compositions and methods employ a manganese- or iron-containing salt or organic complex and a 1,3-dioxo compound with one or more other components. The polymerizable compositions have better storage stability and reduced gel time-drift.

An ester polymer according to the present application has a structure represented by the following formula (I):

##STR00001##

represents the backbone of the ester polymer; the group B is each independently selected from O or S; the group R each independently represents C.sub.1-10 hydrocarbylene group; the group A is each independently selected from O, S or NR; the group R each independently represents C.sub.1-10 hydrocarbylene group; the group N.sub.b is each independently selected from H or RBH, wherein at least one of the two N.sub.b on the same nitrogen atom is RBH; the group R is each independently selected from H or C.sub.1-10 hydrocarbyl group; the group R each independently represents C.sub.1-10 hydrocarbylene group; the group B is each independently selected from O or S; each y independently represents an integer between 1 and 6; and m is an integer between 1 and 10.

The disclosure provides a photosensitive adhesive composition including 10 parts by weight to 90 parts by weight of a monomer having a vinyl ether functional group, 10 parts by weight to 90 parts by weight of a tertiary amine polymer, and 0.5 parts by weight to 10 parts by weight of a photoacid initiator. The weight-average molecular weight of the tertiary amine polymer is between 2000 and 20000. The disclosure also provides a photosensitive conductive adhesive composition and an electronic device containing the photosensitive conductive adhesive composition.

The disclosure provides a photosensitive adhesive composition including 10 parts by weight to 90 parts by weight of a monomer having a vinyl ether functional group, 10 parts by weight to 90 parts by weight of a tertiary amine polymer, and 0.5 parts by weight to 10 parts by weight of a photoacid initiator. The weight-average molecular weight of the tertiary amine polymer is between 2000 and 20000. The disclosure also provides a photosensitive conductive adhesive composition and an electronic device containing the photosensitive conductive adhesive composition.

A reversible crosslinking reactant composition is provided. The composition includes at least one furan-group-containing oligomer having a structure represented by Formula (I) and a bismaleimide compound having a structure represented by

##STR00001##

Formula (II), wherein the equivalent ratio of the furan group of the furan-group-containing oligomer having a structure represented by Formula (I) to the maleimide group of the bismaleimide compound having a structure represented by Formula (II) is from 0.5:1 to 1:0.5.

A reversible crosslinking reactant composition is provided. The composition includes at least one furan-group-containing oligomer having a structure represented by Formula (I) and a bismaleimide compound having a structure represented by

##STR00001##

Formula (II), wherein the equivalent ratio of the furan group of the furan-group-containing oligomer having a structure represented by Formula (I) to the maleimide group of the bismaleimide compound having a structure represented by Formula (II) is from 0.5:1 to 1:0.5.