Sulfenate, E.g., R-o-s-r, Etc. Patents (Class 522/58)
  • Dental compositions and methods with arylsulfinate salts
    Patent number: 7465758
    Abstract: Polymerizable compositions and methods are provided that include an ethylenically unsaturated compound and an arylsulfinate salt. The polymerizable compositions are useful as hardenable dental compositions.
    Type: Grant
    Filed: July 16, 2007
    Date of Patent: December 16, 2008
    Assignee: 3M Innovative Properties Company
    Inventors: Afshin Falsafi, Rajdeep S. Kalgutkar, Joel D. Oxman
  • Polyborane photoinitiators and borate photoinitiators from polyboranes
    Patent number: 6057078
    Abstract: Compounds of the formula I ##STR1## in which n and o are a number from 0 to 50, m is a number from 1 to 50, u and v are 0 or 1, and at least one of the indices u and v is 1, R.sub.1, R.sub.2, R.sub.2a, R.sub.3 and R.sub.4 independently of one another are, for example, aromatic hydrocarbons, R.sub.5, if n and o are 0, is for example C.sub.1 -C.sub.12 alkyl and, if n and/or o are greater than 0, or if n and o are 0 and at the same time only one index u or v is 1, R.sub.5 may additionally, for example, be an aromatic hydrocarbon, at least one of the radicals R.sub.1, R.sub.2, R.sub.2a, R.sub.3, R.sub.4 and R.sub.5 being an aromatic hydrocarbon radical which is sterically hindered ortho to the boron atom, X is, for example, C.sub.1 -C.sub.20 alkylene, phenylene, biphenylene, etc., and Z is a radical which is able to form positive ions, are suitable as photoinitiators, both the compounds per se and their combination with dyes or other electron acceptors.
    Type: Grant
    Filed: July 23, 1998
    Date of Patent: May 2, 2000
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Allan Francis Cunningham, Martin Kunz, Hisatoshi Kura
  • Borate photoinitiators from polyboranes
    Patent number: 5807905
    Abstract: Compounds of the formula I ##STR1## in which n and o are a number from 0 to 50, m is a number from 1 to 50, u and v are 0 or 1, and at least one of the indices u and v is 1, R.sub.1, R.sub.2, R.sub.2a, R.sub.3 and R.sub.4 independently of one another are, for example, aromatic hydrocarbons, R.sub.5, if n and o are 0, is for example C.sub.1 -C.sub.12 alkyl and, if n and/or o are greater than 0, or if n and o are 0 and at the same time only one index u or v is 1, R.sub.5 may additionally, for example, be an aromatic hydrocarbon, at least one of the radicals R.sub.1, R.sub.2, R.sub.2a, R.sub.3, R.sub.4 and R.sub.5 being an aromatic hydrocarbon radical which is sterically hindered ortho to the boron atom, X is, for example, C.sub.1 -C.sub.20 alkylene, phenylene, biphenylene, etc., and Z is a radical which is able to form positive ions, are suitable as photoinitiators, both the compounds per se and their combination with dyes or other electron acceptors.
    Type: Grant
    Filed: November 21, 1996
    Date of Patent: September 15, 1998
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Allan Francis Cunningham, Martin Kunz, Hisatoshi Kura