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Method for the production of thermoplastic and thermoadhesive reinforcing materials used in the construction of footwear

  • US 6,100,328 A
  • Filed: 09/13/1996
  • Issued: 08/08/2000
  • Est. Priority Date: 09/13/1996
  • Status: Expired due to Fees
First Claim
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1. A method of producing reinforced thermoplastic and thermoadhesive polymers which can be used for footwear pieces comprising the steps of:

  • forming a first mixture comprising(A) a reinforcing material and(B) (i) a lactone monomer,(ii) a mixture of a polyisocyanate and a polyol, or(iii) a mixture of a polyisocyanate and a polyolpolyester;

    polymerizing the first mixture simultaneously with said forming step under polymerization conditions; and

    shaping the polymerized mixture while being heated.

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