|국가/구분||United States(US) Patent 등록|
|국제특허분류(IPC7판)||C03C-013/06 C03C-013/00 C03C-003/095 C03C-003/076|
|미국특허분류(USC)||501/036; 501/035; 501/064|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 26 인용 특허 : 7|
Embodiments of the present invention relate generally to fiberizable glass compositions comprising boron oxide at least one rare earth oxide in a molar ratio of rare earth oxide to boron oxide ranging from 0.01 to 0.33. Other embodiments of the present invention relate to methods of inhibiting boron volatization from glass compositions comprising boron oxide by adding a rare earth oxide to the glass composition before melting the glass compositions. Still other embodiments of the present invention relate to glass fibers formed from the fiberizable glass ...
The invention claimed is: 1. A fiberizable glass composition comprising, from 9 to 16 weight percent Al2O3; from 5 to 13 weight percent B2O3; from 16 to 25 weight percent CaO; 0 to 6 weight percent MgO; from 48 to 62 weight percent SiO2; 0 to 4 weight percent TiO2; and R2O3, wherein a molar ratio of R2O3 to B2O3 ranges from 0.01 to 0.33, and R is at least one rare earth element selected from the group consisting of Sc, Y, La, Nd, Sm, Eu, Gd, Er, and Lu. 2. The glass composition of claim 1 wherein the fiberizable glass composition has a log3 forming t...