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1. 发明授权

US4595436A Method for applying polyurethane backing 失效
标题翻译：应用聚氨酯背衬的方法
公开(公告)号：US4595436A
公开(公告)日：1986-06-17
申请号：US646415
申请日：1984-08-31
申请人： Paul Walker , Glen F. Hamrick , B. Lamar Sosebee
发明人： Paul Walker , Glen F. Hamrick , B. Lamar Sosebee
IPC分类号： B29C44/46 , D06N3/14 , D06N7/00 , B32B5/20 , B32B31/22 , B32B31/26
CPC分类号： B29C44/3426 , B29C44/467 , D06N3/14 , D06N7/0086 , D06N2203/042 , D06N2203/068 , D06N2205/04 , D06N2205/20 , D06N2207/04 , D06N2207/08 , Y10T156/1023
摘要： A method and apparatus for making a foamed polyurethane cushion. The cushion may be a separate cushion for carpeting or other fabric, or may be bonded to carpeting. Components for forming a foamed polyurethane are cooled, and dispensed into a puddle on a moving sheet. The puddle is leveled by an air knife into a uniform coating; then, the moving sheet is passed around a roller and placed coated side down against a fabric. The resulting sandwich is held, and moved across a steam box. The steam causes the components to react and form a blown polyurethane. After the blowing is complete and before the foam is cured beyond its plastic state, the thickness of the foam is adjusted by pressing with a roller. The sheet, which is a thermoplastic, is heated to cause the sheet to blend into the completed foam.
摘要翻译：一种制造泡沫聚氨酯垫的方法和装置。垫子可以是用于地毯或其他织物的单独的垫子，或者可以粘合到地毯上。用于形成发泡聚氨酯的组分被冷却，并分配到移动片材上的水坑中。水坑由气刀平整成均匀的涂层; 然后，移动片材绕过辊子并且将涂覆的一面朝下放置在织物上。所得的夹层被保持并移动穿过蒸汽箱。蒸汽导致组分反应并形成吹塑聚氨酯。在吹塑完成之后，并且在泡沫固化超过其塑性状态之前，通过用辊压制来调节泡沫的厚度。将热塑性塑料片材加热，使片材与完成的泡沫体混合。

2. 发明授权

US4515646A Method for applying polyurethane backing 失效
标题翻译：应用聚氨酯背衬的方法
公开(公告)号：US4515646A
公开(公告)日：1985-05-07
申请号：US554210
申请日：1983-11-22
申请人： Paul Walker , Glen F. Hamrick , B. Lamar Sosebee
发明人： Paul Walker , Glen F. Hamrick , B. Lamar Sosebee
IPC分类号： B05D3/10 , B29C44/46 , D06N3/14 , D06N7/00 , B05D5/00
CPC分类号： B29C44/3426 , B29C44/321 , B29C44/467 , D06N3/14 , D06N7/0086 , D06N2203/068 , D06N2205/20 , D06N2207/04
摘要： A method for applying a blown polyurethane coating to carpeting or other sheet material. The method includes the step of adding a filler to the polyurethane components to assure that the liquid does not unduly penetrate porous goods. The mixed polyurethane components are then placed in a puddle on the sheet material and leveled to a uniform coating. Steam is passed through the sheet material and the coating to initiate the reaction of the components. The steam also adds water to the coating, so the formulation is such that additional water is needed, and the needed water is added by the steaming. After the polyurethane has completed blowing, and before the polyurethane has cured beyond its plastic state, the foam may be compressed to decrease the thickness. A second sheet of material can be placed over the polyurethane to prevent the polyurethane from adhering to the compressing roller.
摘要翻译：一种将地毯或其它片状材料涂覆聚氨酯涂层的方法。该方法包括向聚氨酯组分添加填料以确保液体不会过度渗透多孔物质的步骤。然后将混合的聚氨酯组分放置在片材上的水坑中并平整至均匀的涂层。蒸汽通过片材和涂层以引发组分的反应。蒸汽还向涂料中添加水，因此配方使得需要额外的水，并且通过蒸汽加入所需的水。在聚氨酯已经完成吹塑之后，并且在聚氨酯固化超过其塑性状态之前，泡沫可以被压缩以减小厚度。可以将第二片材料放置在聚氨酯上以防止聚氨酯粘附到压缩辊上。

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