摘要:
A photosensitive composition becoming sticky upon exposure to light which comprises (a) a salt of a diazonium compound represented by the formula wherein R, and R 2 are independently -H, -CH 3 , -OCH 3 or but R 1 and R 2 cannot be at the same time; and R 3 and R 4 are independently a straight-chain lower alkyl group, and (b) a salt of an aromatic diazonium compound having no -OH group directly bonding to a benzene ring, has an improved sensitivity because it contains the salt of the compound represented by the above formula. By using said photosensitive composition, there is provided a process for forming a pattern of powder coated layer excellent in light sensitivity.
摘要:
photosensitive composition for use in forming color picture tubes contains an aromatic diazonium compound of the general formula: where R 1 and R 2 are straight chain alkyl radicals, R 3 and R 4 are each one of H, CH 3 or OCH 3 except that R 3 and R 4 cannot both be H, and A is CL½ZnCl 2 , BF 4 or HSO 4 . The sensitivity of the composition is approximately 10 - 20% higher than that of conventional compositions.
摘要:
A photosensitive composition comprising (1) at least one diazonium compound selected from among salts and double salts of diazonium ions represented by the general formulas: wherein A stands for a substituent selected from among and wherein R, and R 2 each stand for an alkyl or benzyl group with the proviso that the total number of carbon atoms of R, and R 2 is 8 to 16, and (2) at least one nitrate selected from the group consisting of calcium nitrate and magnesium nitrate and a pattern forming process using such a composition. This composition gets sticky upon exposure to light.
摘要:
The sensitivity of a photosensitive composition based on an aromatic diazonium salt which gets sticky upon exposure to light, is improved by adding a salt of a compound of the general formula: wherein R 1 and R 2 each represents a straight chain alkyl group, and X, Y and Z each represents H, a straight chain alkyl group or an alkoxy group, but two or more of X, Y and Z cannot be H at the same time. Such compositions are used to form a pattern of powder coat layer on a substrate, e.g. a colour television picture tube.
摘要:
The sensitivity of a photosensitive composition based on an aromatic diazonium salt which gets sticky upon exposure to light, is improved by adding a salt of a compound of the general formula: wherein R 1 and R 2 each represents a straight chain alkyl group, and X, Y and Z each represents H, a straight chain alkyl group or an alkoxy group, but two or more of X, Y and Z cannot be H at the same time. Such compositions are used to form a pattern of powder coat layer on a substrate, e.g. a colour television picture tube.
摘要:
photosensitive composition for use in forming color picture tubes contains an aromatic diazonium compound of the general formula: where R 1 and R 2 are straight chain alkyl radicals, R 3 and R 4 are each one of H, CH 3 or OCH 3 except that R 3 and R 4 cannot both be H, and A is CL½ZnCl 2 , BF 4 or HSO 4 . The sensitivity of the composition is approximately 10 - 20% higher than that of conventional compositions.