@article {Taylor123, author = {James S. Taylor and Wilma F. Bergfeld and Jere D. Guin}, title = {Contad dermatitis to knee patch adhesive in boys{\textquoteright} jeans: a nonoccupational cause of epoxy resin sensitivity}, volume = {50}, number = {2}, pages = {123--127}, year = {1983}, publisher = {Cleveland Clinic Journal of Medicine}, abstract = {Three cases of eczematous dermatitis of the knees are reported in three children who had been wearing Sears, Roebuck and Co. Toughskin{\textregistered} and/or Roughhouser{\textregistered} jeans with knee patches for several months. All had strong positive patch tests to epoxy resin (Epon{\textregistered} 825) from the standard screening patch test tray and to pieces of the knee patches. Although Sears initially denied that {\textquotedblleft}epoxy resin{\textquotedblright} was present in the knee patch adhesive, it was later confirmed that 4,4-isopropylidene diphenyl epichlorohydrin (Epon{\textregistered} 828) was present. In 2 of the 3 patients patch-tested to Epon{\textregistered} 828, results were positive, one test at a concentration of 1:20,000. The epoxy resin had been added to the knee patch adhesive as an adhesion promoter. Sears has now substituted a nonepoxy adhesive for the knee patch of their jeans.}, issn = {0891-1150}, URL = {https://www.ccjm.org/content/50/2/123}, eprint = {https://www.ccjm.org/content/50/2/123.full.pdf}, journal = {Cleveland Clinic Journal of Medicine} }