|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||106/50 ; 106/54 ; 106/736 ; 106/DIG ; 8|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 6 인용 특허 : 5|
Glass pellets for use in producing glass for the manufacture of glass fibers are described in which a significant portion of the pellets are made up of fiber glass cullet. The pellets of glass fiber batch contain quantities of fiber glass cullet from 5 percent by weight to 35 percent or more by weight. The glass fiber cullet employed is in the form of ground glass or short glass fibers, 0.0625 to 0.5 inch (0.158 to 1.27 centimeters).
In a fiber glass making composition comprising a pellet of batch ingredients consisting essentially of 52 to 56 percent SiO2, 12 to 16 percent Al2O3, 16 to 25 percent CaO and 6 to 13 percent B2O3 the improvement comprising the presence in the pellet from about 5 to about 35 percent by weight of the pellet of a fiber glass cullet having the composition recited above, said fiber glass cullet being free of organic contaminants.