A solid epoxy composition comprising: a high heat epoxy compound of one or more of formulas (I) to (IX) provided herein; and an amorphous epoxy compound, wherein the solid epoxy composition has a single glass transition temperature from 35 C. to 100 C., preferably from 40 C. to 95 C., wherein the solid epoxy composition exhibits no other glass transition temperature or crystalline melting point from 20 C. to 200 C., and wherein R.sup.1, R.sup.2, R.sup.a, R.sup.b, R.sup.13, R.sup.14, p, q, c, and t are as provided herein.

A resist underlayer film forming composition contains a resin containing a unit structure represented by formula (1): [in formula (1), R1 represents a thiadiazole group which is optionally substituted with a C1-6 alkyl group optionally interrupted by a carboxy group, a C1-6 alkyl group optionally substituted with a hydroxyl group, or a C1-4 alkylthio group, and R2 represents a hydrogen atom or formula (2): (in formula (2), R1 is the same as defined above, and * represents a binding moiety)]. The resist underlayer film forming composition provides a resist underlayer film which has excellent solvent resistance, excellent optical parameters, an excellent dry etching rate, and excellent embeddability.

A resist underlayer film forming composition contains a resin containing a unit structure represented by formula (1): [in formula (1), R1 represents a thiadiazole group which is optionally substituted with a C1-6 alkyl group optionally interrupted by a carboxy group, a C1-6 alkyl group optionally substituted with a hydroxyl group, or a C1-4 alkylthio group, and R2 represents a hydrogen atom or formula (2): (in formula (2), R1 is the same as defined above, and * represents a binding moiety)]. The resist underlayer film forming composition provides a resist underlayer film which has excellent solvent resistance, excellent optical parameters, an excellent dry etching rate, and excellent embeddability.

An electrostatic dissipative coating composition comprises a phenoxy-epoxy resin system comprising from 40-80 parts by weight to 5-20 parts by weight of an epoxy resin. Carbon nanotubes are dispersed in the phenoxy-epoxy resin system. The coating composition includes at least one isocyanate crosslinking agent and at least one metal catalyst. In a further aspect, a label construction comprising the electrostatic dissipative coating composition is provided.

An electrostatic dissipative coating composition comprises a phenoxy-epoxy resin system comprising from 40-80 parts by weight to 5-20 parts by weight of an epoxy resin. Carbon nanotubes are dispersed in the phenoxy-epoxy resin system. The coating composition includes at least one isocyanate crosslinking agent and at least one metal catalyst. In a further aspect, a label construction comprising the electrostatic dissipative coating composition is provided.

Disclosed is the use of a lacquer system for producing a lacquer edge coating on an edge of a lens, wherein-the lacquer system comprises at least one first component and one second component and configured to be hardened by irradiation with light of a wavelength in the range from 0.7 m to 1.4 m; wherein the first component comprises at least one resin, at least one diluent, and at least one filler, with the content of the at least one resin in the first component amounting to 20 to 65 wt. % of the first component, with the content of the diluent amounting to 5 to 70 wt. % of the first component, and the content of filler amounting to 2 wt. % of the first component; and wherein the second component comprises at least one crosslinking agent.

Disclosed is the use of a lacquer system for producing a lacquer edge coating on an edge of a lens, wherein-the lacquer system comprises at least one first component and one second component and configured to be hardened by irradiation with light of a wavelength in the range from 0.7 m to 1.4 m; wherein the first component comprises at least one resin, at least one diluent, and at least one filler, with the content of the at least one resin in the first component amounting to 20 to 65 wt. % of the first component, with the content of the diluent amounting to 5 to 70 wt. % of the first component, and the content of filler amounting to 2 wt. % of the first component; and wherein the second component comprises at least one crosslinking agent.

Varnish compositions and prepregs and laminates made therefrom wherein the varnish compositions include at least one first epoxy resin and at least one second epoxy resin that includes a bisphenol-A novolac epoxy resin and a harder wherein the at least one first epoxy resin and the at least one second bisphenol-A novolac epoxy resin are present in the varnish at a weight ratio ranging from about 1:1 to about 1:3.

Varnish compositions and prepregs and laminates made therefrom wherein the varnish compositions include at least one first epoxy resin and at least one second epoxy resin that includes a bisphenol-A novolac epoxy resin and a harder wherein the at least one first epoxy resin and the at least one second bisphenol-A novolac epoxy resin are present in the varnish at a weight ratio ranging from about 1:1 to about 1:3.

Varnish compositions and prepregs and laminates made therefrom wherein the varnish compositions include at least one first epoxy resin and at least one second epoxy resin that includes a bisphenol-A novolac epoxy resin and a harder wherein the at least one first epoxy resin and the at least one second bisphenol-A novolac epoxy resin are present in the varnish at a weight ratio ranging from about 1:1 to about 1:3.