|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||65/017.2 ; 65/021.4 ; 65/DIG.11 ; 141/08|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 37 인용 특허 : 0|
Evacuated microspheres, insulating materials constructed from such microspheres, and methods of manufacturing same provide insulation and reduce heat transfer through radiation, conduction and convection. Additionally, an infrared reflective coating is provided on a microsphere surface to reduce radiant heat transfer. A protective exterior coating is also provided to protect an exteriorly applied infrared reflective coating on such a microsphere. Furthermore, the spheroidal geometry of such microspheres restricts heat transfer to point-to-point conductio...
[ I claim:] [1.] A method for producing hollow evacuated, microspheres comprising:providing a mixture of glass material particles and a blowing agent;processing the glass particles and the blowing agent to form a frit with at least some of the blowing agent being contained within the glass particles;heating the frit in a furnace at temperatures where the viscosity of the glass particles is sufficiently low that a liquid glass droplet is formed about portions of the blowing agent;vaporizing the blowing agent into a blowing gas upon which the liquid glass ...