METHOD FOR PROVIDING BASIC PRODUCT AND MANDREL COVERED WITH LONG BODY

• Main Author: TANABE Suguru
• Format: Patent
• Language: English; French; Japanese
• Published: 08.10.2020
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; BLASTING; DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROMTHE BODY; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; HUMAN NECESSITIES; HYGIENE; JOINTS OR FITTINGS FOR PIPES; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; LIGHTING; MEANS FOR THERMAL INSULATION IN GENERAL; MECHANICAL ENGINEERING; MEDICAL OR VETERINARY SCIENCE; PERFORMING OPERATIONS; PIPES; PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCESIN A PLASTIC STATE; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; THERMAL INSULATION IN GENERAL; TRANSPORTING; WEAPONS; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

The present invention relates to a method for providing a basic product made of at least polytetrafluoroethylene (hereinafter called "PTFE") and a mandrel covered with a long body that is the basic product, and the purpose of the present invention is to provide a basic product capable of reducing a manufacturing step of the product. The problem is solved by a method for providing a basic product and a mandrel covered with a long body that is the basic product, the basic product being a long body on which at least one film is spirally wound and which is closely formed by the at least one film, at least one film of the at least one film being made of at least PTFE, the long body having a thickness of 5 μm or more and 75 μm or less, the long body being provided in contact with the mandrel. La présente invention concerne un procédé de préparation d'un produit de base constitué au moins de polytétrafluoroéthylène (ci-après appelé " PTFE ") et un mandrin recouvert d'un corps allongé qui est le produit de base, et le but de la présente invention est de fournir un produit de base apte à réduire une étape de fabrication du produit. Le problème est résolu par un procédé de fourniture d'un produit de base et un mandrin recouvert d'un corps allongé qui est le produit de base, le produit de base étant un corps allongé sur lequel au moins un film est enroulé en spirale et qui est étroitement formé par le ou les films, au moins un film du ou des films étant constitué au moins du PTFE, le corps allongé ayant une épaisseur de 5 µm ou plus et de 75 µm ou moins, le corps allongé étant disposé en contact avec le mandrin. 本発明は、少なくともポリテトラフルオロエチレン（以下、「ＰＴＦＥ」と言う。）から構成される基礎製品の提供方法と、その基礎製品である長尺体で被覆されたマンドレルに関し、製品の製造工程の削減が可能な基礎製品を提供することを目的とする。その課題は、基礎製品が、少なくとも１枚のフィルムが螺旋状に巻回され、該少なくとも１枚のフィルムにより隙間なく形成された長尺体であり、該少なくとも１枚のフィルムのうちの、少なくとも１枚のフィルムが少なくともポリテトラフルオロエチレンから構成され、該長尺体の厚みは５μｍ以上７５μｍ以下であり、該長尺体が、マンドレル上に接触した状態で提供される、基礎製品を提供する方法とその基礎製品である長尺体で被覆されたマンドレルによって解決される。