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US 7,732,633 B2Granted
Arylsulfinate salts in photoinitiator systems for polymerization reactions
Assignee3M Innovative Properties Company
InventorsRajdeep S. Kalgutkar, Michael C. Palazzotto
Life of this patent
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Abstract
Compositions are provided that include an electron donor and a sensitizing compound. More specifically, the electron donor is an arylsulfinate salt. Methods of polymerization are also provided that can be used to prepare polymeric material from a photopolymerizable composition that includes ethylenically unsaturated monomers and a photoinitiator system. The photoinitiator system includes an electron donor and a sensitizing compound.
Claims14
An arylsulfinate salt comprising:
- an anion of Formula I
- wherein Ar1 is a substituted phenyl, an unsubstituted or substituted C7-30 aryl, or an unsubstituted or substituted C3-30 heteroaryl, said substituted Ar1 having a substituent that is an electron withdrawing group or an electron withdrawing group in combination with an electron donating group;
- and
- a cation comprising a ring structure comprising a 4 to 12 member heterocyclic group with a positively charged nitrogen atom and at least one other heteroatom selected from nitrogen, oxygen, sulfur, or combinations thereof, said heterocyclic group being saturated or unsaturated, wherein said ring structure can be unsubstituted or substituted with a substituent selected from an alkyl, aryl, acyl, alkoxy, aryloxy, halo, mercapto, amino, hydroxy, azo, cyano, carboxy, alkoxycarbonyl, aryloxycarbonyl, or halocarbonyl group.
1 more element
An arylsulfinate salt comprising:
- an anion of Formula I
- wherein Ar1 is a substituted phenyl, a substituted C7-30 aryl, or an unsubstituted or substituted C3-30 heteroaryl, said substituted Ar1 having a substituent that is an electron withdrawing group or an electron withdrawing group in combination with an electron donating group, wherein the electron withdrawing group electron is selected from cyano, carboxy, alkoxycarbonyl, aryloxycarbonyl, halocarbonyl, formyl, carbonyl, sulfo, alkoxysulfonyl, aryloxysulfonyl, perfluoroalkylsulfonyl, alkylsulfonyl, azo, alkenyl, alkynyl, dialkylphosphonato, diarylphosphonato, aminocarbonyl, or combinations thereof and
- a cation is of Formula III
- where each R2 is independently an unsubstituted alkyl, an alkyl substituted with a hydroxy, an unsubstituted aryl, or an aryl substituted with an alkyl, hydroxy, or combinations thereof.
1 more element
An arylsulfinate salt comprising:
- an anion of Formula I
- wherein Ar1 is a substituted phenyl, a substituted C7-30 aryl, or a substituted C3-30 heteroaryl, said substituted Ar1 having a substituent that is an electron withdrawing group in combination with an electron donating group, wherein the electron withdrawing group electron is selected from halo, fluoroalkyl, perfluoroalkyl, or combinations thereof and wherein the electron donating group is selected from a primary amino, secondary amino, tertiary amino, hydroxy, alkoxy, aryloxyl, or combinations thereof and
- a cation is of Formula III
- where each R2 is independently an unsubstituted alkyl, an alkyl substituted with a hydroxy, an unsubstituted aryl, or an aryl substituted with an alkyl, hydroxy, or combinations thereof.
1 more element
Dependencies are inferred from the claim text.