THERMAL INSULATING CYLINDER MADE OF OLEFIN RESIN FOAM

• Main Authors: TAKAHANE YOSHIRO, YOKOI SHINICHIRO
• Format: Patent
• Language: English
• Published: 18.04.1995
• Edition: 6
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; BLASTING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; 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; 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

PURPOSE:To provide a flame-retardant thermal insulating cylinder made of olefin resin foam effective as the cylinder of a copper tube. CONSTITUTION:The thermal insulating cylinder made of olefin resin foam comprises an inner cylinder 1 made of foam foamed from olefin resin by an extrusion foaming method by using volatile foaming agent, and an outer cylinder 2 made of foam formed from olefin resin composition containing olefin resin, flame retarder and organic thermal decomposition type foaming agent by a normal pressure foaming method.