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Process of curing a polymerizable composition containing a magnetized powered ferromagnetic material with radioactive rays

  • US 4,004,997 A
  • Filed: 01/23/1975
  • Issued: 01/25/1977
  • Est. Priority Date: 01/30/1972
  • Status: Expired due to Term
First Claim
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1. A process of curing a composition comprising the step of mixing at least one polymerizable ethylenically unsaturated composition selected from the group consisting of polymerizable resins having ethylenically unsaturated groups therein and ethylenically compounds and a filler comprising a magnetized powdery ferromagnetic substance in an amount of 1.5 to 998 parts by weight based on 100 parts by weight of the at least one polymerizable composition and then curing the mixture with radioactive rays selected from the group consisting of X-rays, β

  • rays, γ

    rays, X rays and electron beams in an amount of from 2.5 to 10 Mrads.

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