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특허 상세정보

In-situ foam core structural articles and methods of manufacture of profiles

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B29C-044/20    B32B-001/08    B29C-044/32   
출원번호 US-0463689 (2012-05-03)
등록번호 US-9102086 (2015-08-11)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Brooks Kushman P.C.
인용정보 피인용 횟수 : 0  인용 특허 : 44
초록

A method of manufacturing an elongated article is recited to include extruding a first and a second layer each having peripheries. The second layer is spaced apart from and opposed to the first layer. Together, they define a cavity between them. Into that cavity particles are dispensed. The particles are expanded with an expansion fluid to form an in-situ foam core and to thermally bond the in-situ foam core to the first and second layers. The first and second layers having the thermal bond to the in-situ foam core are shaped to form the article. An elon...

대표
청구항

1. A method of manufacturing an elongated article, the method comprising the steps of: extruding a first layer plastic resin having a periphery which forms at least a portion of a wall of an elongate member having a hollow internal cavity;dispensing a plurality of heat expandable particles into a fill region of the hollow internal cavity while the elongate member is still connected to an extruder and moving along an extrusion axis;expanding the particles with a heated expansion fluid which is introduced into an expansion region of the cavity while the el...

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