Psoriasis verrucosa.

  title={Psoriasis verrucosa.},
  author={Kenya Wakamatsu and Kenichiro Naniwa and Yumiko Hagiya and Makoto Ichimiya and Masahiko Muto},
  journal={The Journal of dermatology},
  volume={37 12},
This work reports the preparation of polyurethane–polyisocyanurate (PUR–PIR) foams containing different amounts of flame retardants (FRs) and a layered silicate nanoclay. An environmentally friendly blowing agent, a mixture of 1,1,1,3,3-pentafluorobutane and 1,1,1,2,3,3,3-heptafluoropropane (HFC 365/ 227), with small amount of water was used. The flame retarded PUR–PIR foams showed better fire resistance in comparison to classical PUR and unmodified PUR–PIR foams without deterioration of their… CONTINUE READING
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