Abstract: Photosensitive compositions comprising (A) an alkali soluble compound; (B) at least one compound, of formula I or II wherein R1 inter alia is C4-C9cycloalkanoyl, C3-C12alkenoyl, or benzoyl which is unsubstituted or substituted; Ar1 is either C6-C20aryl or C6-C20aryloyl each of which is unsubstituted or substituted; x is 2 or 3; M1 when x is 2, inter alia is a group phenylene or naphthylene, each of which optionally is substituted i.a.

Abstract: Compounds of the formula (I), wherein R1, R2 and R10 independently of one another are C1-C20alkyl, phenyl, C1-C12alkylphenyl or phenyl-C1-C6alkyl; R3 and R4 independently of one another are hydrogen, C1-C20alkyl, NR6R7 or SR8, provided that at least one of R3 or R4 is NR6R7 or SR8; R5 is hydrogen or C1-C20alkyl; R6 and R7 independently of one another are C1-C20alkyl, or R6 and R7 together with the N-atom to which they are attached form a 5 or 6 membered ring, which optionally is interrupted by O, S or NR9 and which optionally additionally is substituted by one or more C1-C4alkyl; R8 is phenyl, biphenylyl, naphthyl, anthryl or phenanthryl, all of which optionally are substituted by one or more C1-C4alkyl; and R9 is hydrogen, C1-C20alkyl, C2-C4hydroxyalkyl or phenyl; exhibit an unexpectedly good performance in photopolymerization reactions.

Abstract: The instant invention relates to a process for the preparation of hydroxy-vinyl-aromatic polymers in particular 4-hydroxystyrene polymers or copolymers by anionic or controlled radical polymerization of the respective monomer, wherein the hydroxy functionality is blocked with a protective group which is subsequently removed by reacting it with a halosilane reagent. The resulting (co)polymers have a narrow polydispersity and are useful for manufacturing photoresists.

Abstract: Compounds of the formulae I, II, III, IV and V wherein R1 i.a. is C4-C9cycloalkanoyl, C1-C12alkanoyl, C4-C6alkenoyl, or benzoyl; R2 is for example phenyl, C1-C20alkyl, C3-C8cycloalkyl, C2-C20alkanoyl, or benzoyl; Ar1 is R4S-phenyl or NR5R6-phenyl, each of which optionally is substituted; or Ar1 i.a. is optionally substituted; or Ar1 is naphthyl or anthracyl each of which is unsubstituted or substituted; or Ar1 is benzoyl, naphthalenecarbonyl, phenanthrenecarbonyl, anthracenecarbonyl or pyrenecarbonyl, each of which is unsubstituted or substituted, or Ar1 is 3,4,5-trimethoxyphenyl, phenoxyphenyl or biphenyl; Ar2 i.a.

Abstract: The invention relates to new compounds of formula (I), (II), (III) or (IV) and their use in the recording layer of an optical recording medium comprising a substrate, a recording layer and optionally one or more reflecting layers.

Abstract: Compounds of the formula (I), wherein R1, R2 and R10 independently of one another are C1-C20alkyl, phenyl, C1-C12alkylphenyl or phenyl-C1-C6alkyl; R3 and R4 independently of one another are hydrogen, C1-C20alkyl, NR6R7 or SR8, provided that at least one of R3 or R4 is NR6R7 or SR8; R5 is hydrogen or C1-C20alkyl; R6 and R7 independently of one another are C1-C20alkyl, or R6 and R7 together with the N-atom to which they are attached form a 5 or 6 membered ring, which optionally is interrupted by O, S or NR9 and which optionally additionally is substituted by one or more C1-C4alkyl; R8 is phenyl, biphenylyl, naphthyl, anthryl or phenanthryl, all of which optionally are substituted by one or more C1-C4alkyl; and R9 is hydrogen, C1-C20alkyl, C2-C4hydroxyalkyl or phenyl; exhibit an unexpectedly good performance in photopolymerization reactions.

Abstract: The invention relates to an optical recording medium comprising a substrate, a reflecting layer and a recording layer comprising a compound of formula (I) or a tautomer thereof, wherein G1, G2 and G3 are each independently of the other A1, A2 and A3 are each independently of the other N(R14),O, S or Se and A4 is C(C1-C5aIkyl)2, C(C4-C5alkylene), N(R14), O, S, Se, N?C(R15) or CH?C(R16); M1 is an at least trivalent metal of groups 3 to 15 most preferred Co(III) or Cr(III); Q1, Q2 and Q3 are each independently of the other C(R17), N or P. Recording and playback are effected especially at a wavelength of from 350 to 500 nm, for example using a blue laser.

Abstract: Compounds of the formulae I, II and III wherein R1 is for example hydrogen, C3–C8cycloalkyl, C1–C12alkyl, phenyl unsubstituted or substituted; R2 and R2? for example are hydrogen, C1–C20alkyl, C3–C8cycloalkyl or phenyl, unsubstituted or substituted, or are Ar1 is for example phenyl, optionally substituted by e.g. Ar2 is for example phenylene, optionally substituted e.g. by —(CO)R7, (D), (E) or (F); Ar3 is for example phenyl; M1, M2 and M3 are, for example, C1–C20alkylene; M4 is for example direct bond, —O—, —S—, —Y—(C1–C10alkylene)-Y?—, optionally substituted; Y and Y? are for example a direct bond or —O—; R7 is for example hydrogen, C1–C20alkyl or phenyl, optionally substituted; R8, R9, R8? and R9? are for example hydrogen or C1–C12alkyl, exhibit an unexpectedly good performance in photopolymerization reactions.

Abstract: The instant invention relates to a process for the preparation of hydroxy-vinyl-aromatic polymers in particular 4-hydroxystyrene polymers or copolymers by anionic or controlled radical polymerization of the respective monomer, wherein the hydroxy functionality is blocked with a protective group which is subsequently removed by reacting it with a halosilane reagent. The resulting (co)polymers have a narrow polydispersity and are useful for manufacturing photoresists.

Abstract: The present invention is directed to maleimides and preparation of compounds of the formula I wherein R1 and R2 independently from each other stand for variously substituted, and R3 stands for allyl, variously substituted, with the proviso, that R1 and R2 not simultaneously stand for phenyl.

Abstract: Compounds of the formulae I, II, III, IV and V wherein R1 i.a. is C4-C9cycloalkanoyl, C1-C12alkanoyl, C4-C6alkenoyl, or benzoyl; R2 is for example phenyl, C1-C20alkyl, C3-C8cycloalkyl, C2-C20alkanoyl, or benzoyl; Ar1 is R4S-phenyl or NR5R6-phenyl, each of which optionally is substituted; or Ar1 i.a. is optionally substituted; or Ar1 is naphthyl or anthracyl each of which is unsubstituted or substituted; or Ar1 is benzoyl, naphthalenecarbonyl, phenanthrenecarbonyl, anthracenecarbonyl or pyrenecarbonyl, each of which is unsubstituted or substituted, or Ar1 is 3,4,5-trimethoxyphenyl, phenoxyphenyl or biphenyl; Ar2 i.a.

Abstract: Compounds of the formulae I, II, III, IV and V wherein R1 i.a. is C4-C9cycloalkanoyl, C1-C12alkanoyl, C4-C6alkenoyl, or benzoyl; R2 is for example phenyl, C1-C20alkyl, C3-C8cycloalkyl, C2-C20alkanoyl, or benzoyl; Ar1 is R4S-phenyl or NR5R6-phenyl, each of which optionally is substituted; or Ar1 i.a. is optionally substituted; or Ar1 is naphthyl or anthracyl each of which is unsubstituted or substituted; or Ar1 is benzoyl, naphthalenecarbonyl, phenanthrenecarbonyl, anthracenecarbonyl or pyrenecarbonyl, each of which is unsubstituted or substituted, or Ar1 is 3,4,5-trimethoxyphenyl, phenoxyphenyl or biphenyl; Ar2 i.a.

Abstract: The instant invention relates to a process for the preparation of hydroxy-vinyl-aromatic polymers in particular 4-hydroxystyrene polymers or copolymers by anionic or controlled radical polymerization of the respective monomer, wherein the hydroxy functionality is blocked with a protective group which is subsequently removed in a hydrogenation process. The resulting (co)polymers have a narrow polydispersity and are useful for manufacturing photoresists.

Abstract: Compounds of the formulae I, II and III 1

Abstract: Fluorescent maleimides of the formula I 1

Abstract: A composition comprising (a) an effective amount of a guest chromophore embedded in a matrix of a host chromophore, or (b) a host chromophore and an effective amount of a guest chromophore both embedded in a polymer matrix, wherein the absorption spectrum of the guest chromophore overlaps with the fluorescence emission spectrum of the host chromophore, and wherein the host chromophore is selected from the group consisting of benzo [4,5]imidazo[2,1-a]isoindol-11-ones.

Abstract: A composition comprising (a) an effective amount of a guest chromophore embedded in a matrix of a host chromophore, or (b) a host chromophore and an effective amount of a guest chromophore both embedded in a polymer matrix, wherein the absorption spectrum of the guest chromophore overlaps with the fluorescence emission spectrum of the host chromophore, and wherein the host chromophore is selected from the group consisting of benzo [4,5]imidazo [2,1 -a]isoindol-11-ones.

Abstract: The present invention relates to methods for using a maleimide of formula (I) with the proviso that R1 and R2 do not simultaneously stand for phenyl or a maleimide of formula Ia as UV fluorescent material for void detection and for the preparation of scintillators films, luminescent solar energy collectors, organic electroluminescent devices, printing inks, non-impact printing inks, electrophotographic toners, color filters, and colored high molecular organic material.

Abstract: A composition comprising (a) an effective amount of a guest chromophore embedded in a matrix of a host chromophore, or (b) a host chromophore and an effective amount of a guest chromophore both embedded in a polymer matrix, wherein the absorption spectrum of the guest chromophore overlaps with the fluorescence emission spectrum of the host chromophore, and wherein the host chromophore is selected from the group consisting of benzo [4,5] imidazo [2,1-a] isoindol-11-ones.

Abstract: The present invention relates to methods for using a maleimide of formula (I) 1