|국가/구분||United States(US) Patent 등록|
|국제특허분류(IPC7판)||B27N-005/00 B29C-051/00 B32B-031/20|
|미국특허분류(USC)||156/222 ; 156/307.1 ; 156/309.6 ; 264/113 ; 264/119 ; 264/122 ; 264/241 ; 264/257|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 14 인용 특허 : 0|
A molded, self-supporting, composite part or panel for automotive and similar applications comprises a vapor impervious wood fiber filled polymeric (preferably polypropylene) sheet adhered to one major face of a corrugated paperboard medium and a layer of fibrous insulation (preferably glass fiber) or a second wood fiber filled polymeric sheet adhered to a second major face of the corrugated paperboard medium. The sheet and corrugated medium provide the structural strength for the composite and the fibrous insulation, when used, provides the composite wi...
[ What is claimed is:] [1.] A method of forming a self-supporting composite structure comprising the steps of:providing a laminate comprising a first facing layer having between 50% and 60% by weight wood fibers having an average diameter between 20 and 60 microns and average lengths between 50 and 150 microns, between 25% and 40% by weight polyolefin fibers having an average diameter between 1 and 8 microns and average lengths between 50 and 150 microns, and between 5% and 25% by weight thermoset binder to increase the tensile strength of said first fac...