摘要:
Soluble and thermally stable benzotriazole UV absorbers typified by those of formula I ##STR1## where R.sub.1 is hydrogen or chloro, R.sub.2 is alkyl or --CH.sub.2 CH.sub.2 COOR.sub.4 where R.sub.4 is hydrogen, alkyl or alkyl substituted with hydroxyl, and R.sub.3 is .alpha.-cumyl, provide excellent light stability protection to electro coat, base coat or clear coat finishes. The new soluble, crystalline form of 2-(2-hydroxy-3-.alpha.-cumyl-5-tert-octylphenyl)-2H-benzotriazole is particularly effective.
摘要:
Soluble and thermally stable benzotriazole UV absorbers typified by those of formula I ##STR1## where R.sub.1 is hydrogen or chloro, R.sub.2 is alkyl or --CH.sub.2 CH.sub.2 COOR.sub.4 where R.sub.4 is hydrogen, alkyl or alkyl substituted with hydroxyl, and R.sub.3 is .alpha.-cumyl, provide excellent light stability protection to electro coat, base coat or clear coat finishes. The new soluble, crystalline form of 2-(2-hydroxy-3-.alpha.-cumyl-5-tert-octylphenyl)-2H-benzotriazole is particularly effective.
摘要:
Soluble and thermally stable benzotriazole UV absorbers typified by those of formula I ##STR1## where R.sub.1 is hydrogen or chloro, R.sub.2 is alkyl or --CH.sub.2 CH.sub.2 COOR.sub.4 where R.sub.4 is hydrogen, alkyl or alkyl substituted with hydroxyl, and R.sub.3 is .alpha.-cumyl, provide excellent light stability protection to electro coat, base coat or clear coat finishes. The new soluble, crystalline form of 2-(2-hydroxy-3-.alpha.-cumyl-5-tert-octylphenyl)-2H-benzotriazole is particularly effective.
摘要:
Soluble and thermally stable benzotriazole UV absorbers typified by those of formula I ##STR1## where R.sub.1 is hydrogen or chloro, R.sub.2 is alkyl or --CH.sub.2 CH.sub.2 COOR.sub.4 where R.sub.4 is hydrogen, alkyl or alkyl substituted with hydroxyl, and R.sub.3 is .alpha.-cumyl, provide excellent light stability protection to electro coat, base coat or clear coat finishes. The new soluble, crystalline form of 2-(2-hydroxy-3-.alpha.-cumyl-5-tert-octylphenyl)-2H-benzotriazole is particularly effective.
摘要:
The invention relates to a photographic recording material comprising, on a base, at least one silver-halide emulsion layer and, if desired, at least one interlayer and/or a protection layer, where at least one of said layers contains a UV absorber of the 2-hydroxyphenyltriazine type, as described in greater detail in claim 1; this UV absorber can also be in the form of a homopolymer or copolymer.
摘要:
Compounds of the formula I ##STR1## in which R.sub.1 is C.sub.1 -C.sub.18 alkyl, cyclopentyl or cyclohexyl, and R.sub.2 and R.sub.3, independently of one another, are phenyl which is unsubstituted or monosubstituted to tetrasubstituted by halogen, C.sub.1 -C.sub.4 alkyl and/or C.sub.1 -C.sub.4 alkoxy, with the proviso that R.sub.1 is not decyl if R.sub.2 and R.sub.3 are chlorine-substituted phenyl, are suitable for the photopolymerisation of compounds containing ethylenically unsaturated double bonds.
摘要:
A photographic material is described which comprises, on a base, blue-sensitive, green-sensitive and/or red-sensitive silver-halide emulsion layers and if desired a protection layer, a layer containing a UV absorber being arranged between the uppermost silver-halide emulsion layer and the protection layer or on top of the uppermost silver-halide emulsion layer, wherein the UV absorber conforms to the formula ##STR1## in which the radical R.sub.1 is alkyl, substituted alkyl, alkenyl, glycidyl, cycloalkyl or phenylalkyl, and R.sub.12 is alkyl, benzyl, cyclohexyl, phenyl, substituted phenyl or alkoxy.
摘要:
s-Triazine compounds which contain in their molecule at least one sterically hindered phenol group and at least one polyalkylpiperidine group are effective optical stabilizers for photographic dyes and precursors thereof.
摘要:
Color photographic silver halide material which contains in at least one coupler containing silver halide emulsion layer or in a layer adjacent thereto(a) a hydroquinone of the formula ##STR1## wherein p is 1 or 2 and q is 0 or 1, provided that p+q is 1 or 2, R is a radical of the formula ##STR2## wherein Q is selected from the residues (1) --COZR.sub.4, wherein Z is O or NR.sub.5, and R.sub.4 is hydrogen, alkyl optionally interrupted by oxygen, cycloalkyl, alkenyl, aryl, aralkyl or a heterocyclic ring, and R.sub.5 is hydrogen or alkyl or together with R.sub.4 and the nitrogen atom to which they are bonded form a heterocyclic ring,(2) --OX, wherein X is R.sub.5 or --COR.sub.7, wherein R.sub.7 is hydrogen, alkyl cycloalkyl, alkenyl, aryl or aralkyl,(3) --NR.sub.8 R.sub.9, wherein R.sub.8 is hydrogen or alkyl, and R.sub.9 is hydrogen, alkyl or --COR.sub.7, or R.sub.8 and R.sub.9 together with the nitrogen atom to which they are bonded form a ring,(4) --P(O)(OR.sub.10 ')([O].sub.x R.sub.11 '), wherein x is 0 or 1, and if x is 1, R.sub.10 ' and R.sub.11 ' are hydrogen or alkyl or form together an alkylene chain, and if x is 0 R.sub.10 ' is alkyl,(5) --SO.sub.2 NR.sub.5 R.sub.6, wherein R.sub.5 and R.sub.6 are hydrogen or alkyl, or(6) cyano, n is 1 to 20, k is 1 or 2, R.sub.2 and R.sub.3 are alkyl and if Q is CO.sub.2 R.sub.4, either R.sub.2 or R.sub.3 is optionally substituted by --CO.sub.2 R.sub.4, or R.sub.2 and R.sub.3 form together an alkylene chain, and R.sub.1 is alkyl or a group of the formula ##STR3## or (b) a salt thereof, has an improved stability to light.
摘要翻译:在含有卤化银乳剂层的至少一个成色剂或与其相邻的层中含有(a)下式的氢醌的彩色照相卤化银材料:其中p为1或2,q为0或1,条件是p 其中Q选自残基(1)-COZR4,其中Z为O或NR5,R4为氢,任选被氧环烷基取代的烷基,环烷基,环烷基, 烯基,芳基,芳烷基或杂环,R 5为氢或烷基,或与R 4一起形成杂环的氮原子,(2)-OX,其中X为R5或-COR7为氢, 烷基环烷基,烯基,芳基或芳烷基,(3)-NR8R9,其中R8是氢或烷基,R9是氢,烷基或-COR7或R8和R9与它们所键合的氮原子一起形成环, (4)-P(O)(OR 10')([O] x R 11'),其中x为0或1,如果x为1,则R 10'和R 11'为氢或烷基或一起形成亚烷基 (5)-SO 2 NR 5 R 6,其中R 5和R 6为氢或烷基,或(6)氰基,n为1至20,k为1或2,R 2和R 3为烷基 并且如果Q是CO 2 R 4,则R 2或R 3任选被-CO 2 R 4取代,或者R 2和R 3一起形成亚烷基链,并且R 1是烷基或下式的基团或其(b)其盐, 提高光稳定性。
摘要:
A color-photographic recording material is described which contains a magenta coupler and, as stabilizer, at least one compound of the formula ##STR1## where the radicals are as defined in the specification.