|국가/구분||United States(US) Patent 등록|
|국제특허분류(IPC7판)||C08F-002/00 B28B-001/50 A21D-013/00 B29D-001/00|
|미국특허분류(USC)||422/133 ; 422/137 ; 422/138 ; 264/50|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 178 인용 특허 : 0|
A supermicrocellular foamed material and a method for producing such material, the material to be foamed such as a polymerplastic material, having a supercritical fluid, such as carbon dioxide in its supercritical state, introduced into the material to form a foamed fluid/material system having a plurality of cells distributed substantially throughout the material. Cell densities lying in a range from about 109 to about 1015 per cubic centimeter of the material can be achieved with the average cell sizes being at least less than 2.0 microns and preferabl...
A system for producing a foamed material comprising extrusion means means connected to said extrusion means for supplying a material to be foamed to said extrusion means; die means for shaping material; said extrusion means connected to said die means for providing extruded material to said die means; means for heating said extrusion means to cause said extrusion means to provide said extruded material at a higher temperature than room temperature to permit said die means to produce shaped continuous heated material; means for engaging and transporting s...