公开(公告)号：US4381278A

公开(公告)日：1983-04-26

申请号：US331507

申请日：1981-12-16

Applicant: Dominic D. Ingraffea

Inventor： Dominic D. Ingraffea

IPC: B29C51/08 ,  B29C51/14 ,  B29C51/42 ,  B31F1/00 ,  B29C17/04

CPC classification number: B31F1/0077 ,  B29C51/082 ,  B29C51/14 ,  B29C51/428

Abstract: A method for forming a deep drawn paperboard container coated with a layer of grease and water impermeable polymeric material. A paperboard blank is disposed between and acted upon by a heated mandrel and a heated mold to form a container. The surface of the blank engageable by the mandrel bears the polymeric coating, and means are operative relatively to move the mandrel and mold toward one another, to engage, the blank, and, just prior to fully engaging the blank to set the same, to introduce a film of air between the heated mandrel and the polymer coated surface to ensure against sticking of the coating to the mandrel.

Abstract translation: 一种用于形成涂有一层油脂和不透水聚合物材料的深拉纸板容器的方法。 纸板坯被设置在加热的心轴和加热的模具之间并由其起作用以形成容器。 可由芯轴接合的坯料的表面承载聚合物涂层，并且相对于相对于将心轴和模具朝向彼此移动以使其接合，并且在完全接合坯料以将其固定之前，手段相对于 在加热的心轴和聚合物涂覆的表面之间引入空气膜，以确保防止涂层粘附到心轴上。

公开(公告)号：US4381909A

公开(公告)日：1983-05-03

申请号：US331353

申请日：1981-12-16

Applicant: Dominic D. Ingraffea

Inventor： Dominic D. Ingraffea

IPC: B29C51/08 ,  B29C51/14 ,  B29C51/42 ,  B31F1/00 ,  B29C17/04

CPC classification number: B29C51/082 ,  B29C51/14 ,  B29C51/428 ,  B31F1/0077

Abstract: Apparatus for forming a deep drawn paperboard container coated with a layer of grease and water impermeable polymeric material. A paperboard blank is disposed between and acted upon by a heated mandrel and a heated mold to form a container. The surface of the blank engageable by the mandrel bears the polymeric coating, and means are operative relatively to move the mandrel and mold toward one another, to engage, the blank, and, just prior to fully engaging the blank to set the same, to introduce a film of air between the heated mandrel and the polymer coated surface to ensure against sticking of the coating to the mandrel.

Abstract translation: 用于形成涂有一层油脂和不透水聚合物材料的深拉纸板容器的装置。 纸板坯被设置在加热的心轴和加热的模具之间并由其起作用以形成容器。 可由芯轴接合的坯料的表面承载聚合物涂层，并且相对于相对于将心轴和模具朝向彼此移动以使其接合，并且在完全接合坯料以将其固定之前，手段相对于 在加热的心轴和聚合物涂覆的表面之间引入空气膜，以确保防止涂层粘附到心轴上。