A photosensitive composition becoming sticky upon exposure to light which comprises (a) a salt of a diazonium compound represented by the formula ##STR1## wherein R.sub.1 and R.sub.2 are independently --H, --CH.sub.3, --OCH.sub.3 or ##STR2## but R.sub.1 and R.sub.2 cannot be ##STR3## at the same time; and R.sub.3 and R.sub.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.
一种光敏感组合物,在暴露于光线下变得粘性,包括(a)一种重氮化合物的盐,该重氮化合物的
化学式为##STR1##其中R.sub.1和R.sub.2独立地为--H,--CH.sub.3,--OCH.sub.3或##STR2##但R.sub.1和R.sub.2不能同时为##STR3##; R.sub.3和R.sub.4独立地为直链低级烷基,以及(b)一种芳香族重氮化合物的盐,该芳香族重氮化合物没有--OH基直接连接到苯环上,由于含有上述化合物所代表的盐,因此具有改进的敏感性。通过使用该光敏感组合物,提供了一种形成粉末涂层层的图案的过程,该过程具有优异的光敏感性。