Patents Assigned to NuPro Technologies, Inc.
  • Patent number: 6897008
    Abstract: Flexographic printing plates are produced by exposing the photopolymer plates to a light source and washing out (developing) the masked out, non-exposed areas with a solvent. The invention provides terpene ether solvents suitable for use in the development of photopolymer printing plates. The solvents, which include terpene ethers alone or mixed with co-solvents and/or non-solvents, are effective in developing a large number of different photopolymer printing plates and can produce images superior to those obtained with commercially available solvents currently used in such applications.
    Type: Grant
    Filed: November 6, 2003
    Date of Patent: May 24, 2005
    Assignee: NuPro Technologies, Inc.
    Inventors: Constance Marie Hendrickson, David Calvin Bradford
  • Patent number: 6582886
    Abstract: Flexographic printing plates are produced by exposing the photopolymer plates to a light source and washing out (developing) the masked out, non-exposed areas with a solvent. The invention provides methyl ester solvents suitable for use in the development of photopolymer printing plates. The solvents, which include methyl esters alone or mixed with co-solvents and/or non-solvents, are effective in developing a large number of different photopolymer printing plates and can produce images superior to those obtained with commercially available solvents currently used in such applications.
    Type: Grant
    Filed: November 27, 2001
    Date of Patent: June 24, 2003
    Assignee: NuPro Technologies, Inc.
    Inventors: Constance Marie Hendrickson, David Calvin Bradford
  • Patent number: 6248502
    Abstract: Flexographic printing plates crosslinkable by photopolymerization are produced by exposing the plates to a light source and washing out (developing) with a solvent the non-crosslinked areas that are masked out during the exposure process. The invention provides terpene ester-based solvents suitable for use in the development of photopolymer printing plates. The solvents, which include terpene esters alone or terpene esters mixed with organic solvents and/or non-solvents, are effective in developing a a large number of different photopolymer printing plates and can produce images superior to those obtained with commercially available solvents currently used in such applications.
    Type: Grant
    Filed: August 3, 2000
    Date of Patent: June 19, 2001
    Assignee: Nupro Technologies, Inc.
    Inventor: Richard W. Eklund