Methods to make glass compositions and fibers made therefrom
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C03C-003/085
C08K-003/22
C03C-013/00
C03C-003/087
C03C-013/06
C08J-005/04
C03C-003/112
C03C-003/095
C03C-004/20
C03B-037/01
출원번호
US-0397320
(2017-01-03)
등록번호
US-9862638
(2018-01-09)
발명자
/ 주소
Li, Hong
Watson, James C.
출원인 / 주소
Li, Hong
대리인 / 주소
Kilpatrick Townsend & Stockton LLP
인용정보
피인용 횟수 :
0인용 특허 :
48
초록
Embodiments of the present invention provides fiberizable glass compositions formed from batch compositions comprising significant amounts of one or more glassy minerals, including perlite and/or pumice.
대표청구항▼
1. A method of producing a glass composition comprising: providing a batch composition comprising dolomite, at least 50 weight percent of a glassy mineral, and at least 5 weight percent of a sodium source, the glassy mineral comprising a combination of SiO2 and Al2O3 in an amount of at least 80 weig
1. A method of producing a glass composition comprising: providing a batch composition comprising dolomite, at least 50 weight percent of a glassy mineral, and at least 5 weight percent of a sodium source, the glassy mineral comprising a combination of SiO2 and Al2O3 in an amount of at least 80 weight percent; andheating the batch to form a melt of the glass composition, wherein the glass composition comprises: 8 to less than 12 weight percent Al2O3;less than 1 weight percent of Fe2O3;8.5 to 16 weight percent Na2O;2 to 4 weight percent K2O;0-3 weight percent La2O3;from greater than 0 to 3 weight percent MnO2; and0-3 weight percent ZrO2; wherein the glass composition is substantially free of B2O3 and SrO. 2. The method of claim 1, wherein the batch composition is heated to a fiber forming temperature ranging from about 1120° C. to about 1300° C. 3. The method of claim 2, further comprising fiberizing the glass composition. 4. The method of claim 1, wherein the batch composition comprises at least 65 weight percent of a glassy mineral. 5. The method of claim 1, wherein the glassy mineral comprises perlite, pumice, or mixtures thereof. 6. The method of claim 1, wherein the batch composition comprises at least 10 weight percent of a sodium source. 7. The method of claim 1, wherein the sodium source comprises sodium carbonate (soda). 8. The method of claim 1, wherein the batch composition comprises limestone in an amount up to 17 weight percent. 9. The method of claim 1, wherein the batch composition comprises dolomite in an amount up to 13 weight percent. 10. The method of claim 1, wherein the batch composition is heated to a fiber forming temperature ranging from about 1400° C. to about 1450° C. 11. The method of claim 1, wherein the batch composition is heated to a fiber forming temperature which differs from the liquidus temperature of a glass composition from about 45° C. to about 165° C. 12. The method of claim 1, wherein the batch composition is heated to a fiber forming temperature which differs from the liquidus temperature by at least 65° C. 13. A method of producing a glass composition comprising: providing a batch composition comprising dolomite, at least 50 weight percent of a glassy mineral, and at least 5 weight percent of a sodium source, the glassy mineral comprising a combination of SiO2 and Al2O3 in an amount of at least 80 weight percent; andheating the batch to form a melt of the glass composition, wherein the glass composition comprises:53-64 weight percent SiO2;9 to less than 12 weight percent Al2O3;0-3 weight percent ZrO2;0-3 weight percent La2O3;from greater than 0 to 3 weight percent MnO2;10.5-18 weight percent alkali oxide component (R2O), wherein the alkali oxide component comprises Na2O in an amount ranging from 8.5 to 16 weight percent and K2O in an amount ranging from 2 to 4 weight percent; anda metal oxide (RO) component selected from the group consisting of MgO, CaO, BaO, and ZnO, wherein the metal oxide component is present in an amount to provide a ratio R2O/RO ranging from about 0.15 to about 1.5, wherein the glass composition comprises less than 1 weight percent of Fe2O3 and is substantially free of B2O3 and SrO. 14. A method of producing a glass composition comprising: providing a batch composition comprising dolomite, at least 50 weight percent of a glassy mineral, and at least 5 weight percent of a sodium source, the glassy mineral comprising a combination of SiO2 and Al2O3 in an amount of at least 80 weight percent; andheating the batch to form a melt of the glass composition, wherein the glass composition comprises:56-63 weight percent SiO2;9 to less than 12 weight percent Al2O3;12-17 weight percent RO (CaO+MgO);12-14 weight percent R2O (Na2O+K2O);0-2 weight percent Li2O;0-3 weight percent ZnO;0-3 weight percent ZrO2;from greater than 0 to 3 weight percent MnO2; and0-3 weight percent La2O3, wherein the glass composition is substantially free B2O3 and SrO. 15. A method of producing a glass composition comprising: providing a batch composition comprising dolomite, at least 50 weight percent of a glassy mineral, and at least 5 weight percent of a sodium source, the glassy mineral comprising a combination of SiO2 and Al2O3 in an amount of at least 80 weight percent; andheating the batch to form a melt of the glass composition, wherein the glass composition comprises:60-64 weight percent SiO2;9 to less than 12 weight percent Al2O3;7-15 weight percent RO (CaO+MgO);13-15.5 weight percent R2O (Na2O+K2O);0-2 weight percent Li2O;0-3 weight percent ZnO;0-3 weight percent ZrO2;from greater than 0 to 3 weight percent MnO2; and0-3 weight percent La2O3, wherein the glass composition is substantially free of B2O3 and SrO. 16. A method of producing a glass composition comprising: providing a batch composition comprising dolomite, at least 50 weight percent of a glassy mineral, and at least 5 weight percent of a sodium source, the glassy mineral comprising a combination of SiO2 and Al2O3 in an amount of at least 80 weight percent; and heating the batch to form a melt of the glass composition, wherein the glass composition comprises: from greater than 60 to 64 weight percent SiO2;9-14 weight percent Al2O3;0-3 weight percent ZrO2;0-3 weight percent La2O3;from greater than 0 to 3 weight percent MnO2;less than 1 weight percent of Fe2O3;10.5-18 weight percent alkali oxide component (R2O), wherein the alkali oxide component comprises Na2O in an amount ranging from 8.5 to 16 weight percent and K2O in an amount ranging from 2 to 4 weight percent; anda metal oxide (RO) component selected from the group consisting of MgO, CaO, BaO, and ZnO, wherein the metal oxide component is present in an amount to provide a ratio of R2O/RO ranging from about 0.15 to about 1.5; wherein the glass composition is substantially free of B2O3 and SrO.
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