A coloring composition is a coloring composition including a black colorant, a polymerizable compound, and a photopolymerization initiator, in which the photopolymerization initiator includes a photopolymerization initiator a in which a light absorption coefficient at 365 nm in methanol is more than 1.0×10.sup.2 mL/gcm and a photopolymerization initiator b in which a light absorption coefficient at 365 nm in methanol is 1.0×10.sup.2 mL/gcm or less and a light absorption coefficient at 254 nm is 1.0×10.sup.3 mL/gcm or more, a content of the photopolymerization initiator b is 45.0 to 200.0 parts by mass with respect to 100.0 parts by mass of a content of the photopolymerization initiator a, and a ratio of a maximum absorbance to a minimum absorbance of a coloring cured film obtained by curing the coloring composition at a wavelength of 400 to 700 nm is 1.0 to 2.5.

A quantum dot composite, an optical film, and a backlight module are provided. The quantum dot composite includes a polymerizable polymer and a plurality of quantum dot particles dispersed in the polymerizable polymer. A particle size of the plurality of the quantum dot particles ranges from 8 nm to 30 nm. Based on a total weight of the polymerizable polymer being 100 wt %, the polymerizable polymer includes: 10 wt % to 30 wt % of a multifunctional acrylic monomer, 8 wt % to 60 wt % of a thiol compound self-assembled on surfaces of the plurality of the quantum dot particles, and 1 wt % to 5 wt % of a photoinitiator.

The present invention relates to a homogeneous liquid/fluid combination of photoinitiators with improved formulability, reactivity and surface curing performances, more particularly to novel combinations of acylphosphine oxides and ketocoumarins, optionally further combined with at least one co-initiator.

The present invention relates to a homogeneous liquid/fluid combination of photoinitiators with improved formulability, reactivity and surface curing performances, more particularly to novel combinations of acylphosphine oxides and ketocoumarins, optionally further combined with at least one co-initiator.

Provided is a fluorine-containing siloxane acrylate represented by formula (1).

X—Z-PFPE-Z—X   (1)

[PFPE is a divalent perfluoropolyether chain, X is a group represented by formula (2)

##STR00001##

{Y.sup.1 is a divalent organic group, R.sup.2 is a hydrogen atom, a fluorine atom, a methyl group, or a trifluoromethyl group, and G is a monovalent hydrocarbon group or a group represented by formula (3)

O—Si(CH.sub.3).sub.2—Y.sup.1—OR.sup.1   (3)

(R.sup.1 is a monovalent hydrocarbon group, and Y.sup.1 is same as mentioned above. The broken line represents a bond (hereinafter, the same shall apply.)) Q is a hydrogen atom or a group represented by formula (4)

SiR.sup.3.sub.3   (4)

(R.sup.3 is a monovalent hydrocarbon group.) e is an integer of 0-2, f is an integer of 0-2, and g is an integer of 1-3, and e+f+g is 3.} Z is a predetermined divalent organic group.]

Provided is a fluorine-containing siloxane acrylate represented by formula (1).

X—Z-PFPE-Z—X   (1)

[PFPE is a divalent perfluoropolyether chain, X is a group represented by formula (2)

##STR00001##

{Y.sup.1 is a divalent organic group, R.sup.2 is a hydrogen atom, a fluorine atom, a methyl group, or a trifluoromethyl group, and G is a monovalent hydrocarbon group or a group represented by formula (3)

O—Si(CH.sub.3).sub.2—Y.sup.1—OR.sup.1   (3)

(R.sup.1 is a monovalent hydrocarbon group, and Y.sup.1 is same as mentioned above. The broken line represents a bond (hereinafter, the same shall apply.)) Q is a hydrogen atom or a group represented by formula (4)

SiR.sup.3.sub.3   (4)

(R.sup.3 is a monovalent hydrocarbon group.) e is an integer of 0-2, f is an integer of 0-2, and g is an integer of 1-3, and e+f+g is 3.} Z is a predetermined divalent organic group.]

Provided is a photosensitive composition including: a polymer (P) which includes a structural unit derived from a vinylbenzene derivative, a structural unit including a radical polymerizable group, and a structural unit including at least one kind of functional group selected from the group consisting of a primary hydroxyl group and an amino group, and in which the content of the structural unit derived from the vinylbenzene derivative is equal to or greater than 30% by mol; and a radical polymerization initiator.

Provided is a photosensitive composition including: a polymer (P) which includes a structural unit derived from a vinylbenzene derivative, a structural unit including a radical polymerizable group, and a structural unit including at least one kind of functional group selected from the group consisting of a primary hydroxyl group and an amino group, and in which the content of the structural unit derived from the vinylbenzene derivative is equal to or greater than 30% by mol; and a radical polymerization initiator.

Provided herein is a method of making a clear or translucent object by additive manufacturing, comprising (a) providing a clear or translucent light polymerizable resin, the resin comprising: (i) light-polymerizable monomers, prepolymers, or a combination thereof; (ii) a photoinitiator; and (iii) a polysubstituted linear polyacene ultraviolet light absorbing compound which compound is polysubstituted with bromo, chloro, —Se—R′, —S—R′ or combinations thereof, where each R′ is independently selected from alkyl, aryl, and arylalkyl; and then (b) producing by stereolithography with ultraviolet light a clear or translucent object from said light polymerizable resin.

Provided herein is a method of making a clear or translucent object by additive manufacturing, comprising (a) providing a clear or translucent light polymerizable resin, the resin comprising: (i) light-polymerizable monomers, prepolymers, or a combination thereof; (ii) a photoinitiator; and (iii) a polysubstituted linear polyacene ultraviolet light absorbing compound which compound is polysubstituted with bromo, chloro, —Se—R′, —S—R′ or combinations thereof, where each R′ is independently selected from alkyl, aryl, and arylalkyl; and then (b) producing by stereolithography with ultraviolet light a clear or translucent object from said light polymerizable resin.