Curable ink compositions include at least one aromatic (meth)acrylate, at least one multifunctional (meth)acrylate with heteroaromatic groups, fused aromatic groups, heteroalkylene groups, or a group containing both heteroalkylene and aromatic groups, and a photoinitiator. The curable ink composition is Inkjet printable, having a viscosity of 30 centipoise or less at a temperature of from room temperature to 35 C., and is free from solvents. The ink composition, when printed and cured has a refractive index of 1.55 or greater, and is optically clear. The cured ink composition, when cured to a thickness of from 1-16 micrometers, has a surface roughness of less than or equal to 5 nanometers.

Provided herein according to some embodiments is a dual cure stereolithography resin that includes thermoplastic particles, which thermoplastic particles are insoluble in the resin and insoluble during a first, light, cure in which an intermediate object is produced, but then dissolve or swell in the intermediate object during the second, heat, cure.

Provided herein according to some embodiments is a dual cure stereolithography resin that includes a Diels-Alder adduct, which adduct is light polymerizable in the first, light, cure to produce an intermediate object, and on heating the intermediate object yields a bis-maleimide that can further react and/or polymerize during the second, heat, cure.

Provided herein according to some embodiments is a dual cure stereolithography resin that includes a Diels-Alder adduct, which adduct is light polymerizable in the first, light, cure to produce an intermediate object, and on heating the intermediate object yields a bis-maleimide that can further react and/or polymerize during the second, heat, cure.

A disclosed crosslinkable rubber composition includes a carboxyl group-containing nitrile rubber (A) containing a halogen or a halogen compound, and having an iodine value of 120 or less; a polyamine-based crosslinking agent (B); and a metal-based acid acceptor (C).

A disclosed crosslinkable rubber composition includes a carboxyl group-containing nitrile rubber (A) containing a halogen or a halogen compound, and having an iodine value of 120 or less; a polyamine-based crosslinking agent (B); and a metal-based acid acceptor (C).

A compound represented by General Formula (I), A.sup.1 to A.sup.4 each independently represent a non-aromatic ring group, an aromatic hydrocarbon ring group, or an aromatic heterocyclic group, which may have a substituent, Z represents O, S, CHRCHR, OCHR, CHRO, CO, SO, SO.sub.2, COO, OCO, COS, SCO, OCOO, SCHR, CHRS, SOCHR, CHRSO, SO.sub.2CHR, CHRSO.sub.2, CF.sub.2O, OCF.sub.2, CF.sub.2S, SCF.sub.2, OCHRCHRO, SCHRCHRS, SOCHRCHRSO, SO.sub.2CHRCHRSO.sub.2, CH?CHCOO, CH?CHOCO, COOCH?CH, OCOCH?CH, COOCHRCHR, OCOCHRCHR, CHRCHRCOO, CHRCHROCO, COOCHR, OCOCHR, CHRCOO, CHROCO, CR?CR, CR?N, N?CR, N?N, CR?NN?CR, CF?CF, C?C, or a single bond, R represents a hydrogen atom or an alkyl group having 1 to 10 carbon atoms, and m1 represents an integer of 2 to 7.

##STR00001##

A compound represented by General Formula (I), A.sup.1 to A.sup.4 each independently represent a non-aromatic ring group, an aromatic hydrocarbon ring group, or an aromatic heterocyclic group, which may have a substituent, Z represents O, S, CHRCHR, OCHR, CHRO, CO, SO, SO.sub.2, COO, OCO, COS, SCO, OCOO, SCHR, CHRS, SOCHR, CHRSO, SO.sub.2CHR, CHRSO.sub.2, CF.sub.2O, OCF.sub.2, CF.sub.2S, SCF.sub.2, OCHRCHRO, SCHRCHRS, SOCHRCHRSO, SO.sub.2CHRCHRSO.sub.2, CH?CHCOO, CH?CHOCO, COOCH?CH, OCOCH?CH, COOCHRCHR, OCOCHRCHR, CHRCHRCOO, CHRCHROCO, COOCHR, OCOCHR, CHRCOO, CHROCO, CR?CR, CR?N, N?CR, N?N, CR?NN?CR, CF?CF, C?C, or a single bond, R represents a hydrogen atom or an alkyl group having 1 to 10 carbon atoms, and m1 represents an integer of 2 to 7.

##STR00001##

The invention relates to a polymerisable LC material comprising at least one di- or multireactive mesogenic compound and at least one compound of formula CO-1,

##STR00001##

wherein R.sup.1, R.sup.2, L.sup.1, L.sup.2, L.sup.3, and n have one of the meanings as given in claim 1. Furthermore, the present invention relates also to a method for its preparation, a polymer film with improved thermal durability obtainable from the corresponding polymerisable LC material, to a method of preparation of such polymer film, and to the use of such polymer film and said polymerisable LC material for optical, electro-optical, decorative or security devices.

The invention relates to a polymerisable LC material comprising at least one di- or multireactive mesogenic compound and at least one compound of formula CO-1,

##STR00001##

wherein R.sup.1, R.sup.2, L.sup.1, L.sup.2, L.sup.3, and n have one of the meanings as given in claim 1. Furthermore, the present invention relates also to a method for its preparation, a polymer film with improved thermal durability obtainable from the corresponding polymerisable LC material, to a method of preparation of such polymer film, and to the use of such polymer film and said polymerisable LC material for optical, electro-optical, decorative or security devices.