[미국특허]
Three layer composite panel from recycled polyurethanes
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B29C-059/02
출원번호
UP-0383015
(2009-03-19)
등록번호
US-7754120
(2010-08-02)
발명자
/ 주소
Kessing, Reinhard H.
대리인 / 주소
Phillips Lytle LLP
인용정보
피인용 횟수 :
3인용 특허 :
31
초록▼
A process for the manufacture of a three layer composite panel with improved moisture resistance, minimal thickness swell, thermal stability, and a smooth hard surface suitable for direct lamination. The composite panel is produced utilizing recycled polyurethanes, preferably obtained from vehicle h
A process for the manufacture of a three layer composite panel with improved moisture resistance, minimal thickness swell, thermal stability, and a smooth hard surface suitable for direct lamination. The composite panel is produced utilizing recycled polyurethanes, preferably obtained from vehicle headliners, insulated foam panels, foam insulation, energy absorbent panels, and polyisocyanurate foams along with materials incidental to at least one recycled component including composite resins, cloth, adhesives, fiberglass, and plastics. The composite panel is composed of a core layer pressed between two surface layers.
대표청구항▼
What is claimed is: 1. A process of forming a composite panel from recycled polyurethanes along with other materials incidental to at least one recycled component comprising the steps of: a. forming a core layer comprising the steps of: cutting and milling said recycled polyurethanes along with sai
What is claimed is: 1. A process of forming a composite panel from recycled polyurethanes along with other materials incidental to at least one recycled component comprising the steps of: a. forming a core layer comprising the steps of: cutting and milling said recycled polyurethanes along with said other materials incidental to said at least one recycled component; passing the milled polyurethanes and said other materials incidental to said at least one recycled component through a screen to ensure all particles are not larger than about 3 millimeters in diameter; blending said recycled polyurethanes and said other materials incidental to said at least one recycled component with isocyanate and water, wherein a volume of said isocyanate is approximately 3% to 10% by weight and a volume of said water is approximately 1% to 9% by weight; cleaning said recycled polyurethanes and said other materials incidental to said at least one recycled component in a wind sifter; b. forming surface layers comprising the steps of: cutting and milling said recycled polyurethanes along with said other materials incidental to said at least one recycled component; blending said recycled polyurethanes and said other materials incidental to said at least one recycled component with isocyanate and water; cleaning said recycled polyurethanes and said other materials incidental to said at least one recycled component in a wind sifter; passing said milled polyurethane and said other materials incidental to said at least one recycled component through a screen to ensure all particles are not larger than about 1.5 millimeters in diameter; c. forming a three layer mat with said blended core layer and said blended surface layers wherein said core layer is between said surface layers; and d. pressing said mat with a press system at temperatures from about 40° C. to about 185° C. at a speed of about 1 to about 16 seconds per millimeter of panel thickness with a pressure of about 5 kg/cm2 to about 45 kg/cm2. 2. The process of claim 1, wherein said recycled polyurethanes are recycled polyisocyanurate foams. 3. The process of claim 1, wherein said recycled polyurethanes are recycled insulated foam panels. 4. The process of claim 1, wherein said recycled polyurethanes are recycled energy absorbent panels. 5. The process of claim 1, wherein said recycled polyurethanes and other materials incidental to said at least one recycled component are from a vehicle. 6. The process of claim 1, wherein said recycled polyurethanes and other materials incidental to said at least one recycled component are vehicle headliners. 7. The process of claim 1, wherein said recycled polyurethanes are selected from the group consisting of recycled polyisocyanurate foam, recycled insulated foam panels, recycled energy absorbent panels, recycled vehicle headliners, and mixtures thereof. 8. The process of claim 1, wherein said materials incidental to said at least one recycled component are selected from the group consisting of composite resins, cloth, adhesives, fiberglass, plastics, and mixtures thereof. 9. The process of claim 1, wherein said mat is pressed at temperatures from about 40° C. to about 185° C. 10. The process of claim 1, wherein said mat is pressed with a pressure of about 5 kg/cm2 to about 45 kg/cm2. 11. The process of claim 1, wherein said surface layers are composed of particles about 1.5 millimeters or less in diameter. 12. The process of claim 1, wherein said core is composed of particles about 3 millimeters or less in diameter. 13. The process of claim 1, wherein said isocyanate is diphenylmethane diisocyanate.
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