Hard-foam polyurethane composite plate and its production process

Hard-foam polyurethane composite plate and its production process

CN
  • CN 1,297,394 C
  • Filed: 12/08/2005
  • Issued: 01/31/2007
  • Est. Priority Date: 12/08/2005
  • Status: Active Grant
First Claim
Patent Images

1. , a kind of rigid foam polyurethane comprises hard-foam polyurethane layer (3), is respectively equipped with polymer sheet (2) and (4) below it is characterized in that reaching on hard-foam polyurethane layer (3), all is provided with nonwoven (1) in polymer sheet (2) and (4).

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