... [0054] The hydrocarbon may, for example, be n-hexane, cyclohexane, benzene, toluene, xylene, solvent naphtha, dichloromethane or trichloroethylene.

... [0165] The diffraction efficiency was also measured according to the same method as used in Example 1 . FIG. 4 shows a graph indicating the changes over ...

13 ratio (theoretical value) of oxygen atom being 3.0 mol per mol of phosphorus atom of polymetaphosphoric acid. The ratio of nitrogen atom was 1.99 mol per ...

... crystal thus obtained was dried at 50° C. under vacuum to obtain 17.8 g of a pale yellow powder-like tris(l,3-oxathi- ...

... heating or light irradiation. When the curable composition contains an organic solvent, it is preferred that the polymerization is performed after the ...

11 12 10% sodium dihydrogen phosphate solution. Then, salt was removed by washing with water, and S-epichlorohydrin was distilled off under reduced pressure ...

Comparative Test items Example 1 Example 2 Example 3 Example 4 Example 1 5510,1 3 As the amount of the metal oxide increases from 5 to 8 and 10 parts by ...

... nium salts, diallyliodonium salts, dialkylphenacylsulfonium salts, dialkyl-4 -hydroxyphenylsulfonium salts, sulfonic acid esters, o-acyloximes, ...