Grinding pad and manufacture method thereof

Grinding pad and manufacture method thereof

  • CN 100,540,221 C
  • Filed: 10/03/2002
  • Issued: 09/16/2009
  • Est. Priority Date: 11/13/2001
  • Status: Active Grant
First Claim
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1. one kind is the grinding pad of main composition material with the polyurethane that contains organic multiple isocyanate, polyalcohol and curing agent, the principal component of wherein said curing agent is 4,4 '"'"'-di-2-ethylhexylphosphine oxide (o-chloraniline), described polyalcohol comprises that number-average molecular weight is 500~

  • 1600, molecular weight distribution is less than 1.9 polytetramethylene glycol, and wherein molecular weight distribution is a weight-average molecular weight/number-average molecular weight.

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