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Cement/gypsum composites based cellulose-I

  • US 5,021,093 A
  • Filed: 06/09/1988
  • Issued: 06/04/1991
  • Est. Priority Date: 05/29/1985
  • Status: Expired due to Fees
First Claim
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1. A composite material comprising a cement material, cellulosic fibers and optionally water, wherein said cellulosic fibers are (essentially) pregrafted with a silylating agent by generating a free radical process.

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