Glass composition for producing high strength and high modulus fibers
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C03C-013/00
C03C-003/085
C03C-003/087
C08K-007/14
출원번호
US-0719490
(2011-06-30)
등록번호
US-9029279
(2015-05-12)
국제출원번호
PCT/IB2011/052898
(2011-06-30)
§371/§102 date
20130904
(20130904)
국제공개번호
WO2012/001655
(2012-01-05)
발명자
/ 주소
Hofmann, Douglas Alan
McGinnis, Peter Bernard
출원인 / 주소
OCV Intellectual Capital, LLC
대리인 / 주소
Calfee, Halter & Griswold LLP
인용정보
피인용 횟수 :
2인용 특허 :
4
초록▼
A glass composition including SiO2 in an amount from 74.5 to 80.0% by weight, Al2O3 in an amount from 5.0 to 9.5% by weight, MgO in an amount from 8.75 to 14.75% by weight, CaO in an amount from 0.0 to 3.0% by weight, Li2O in an amount from 2.0 to 3.25% by weight, Na2O in an amount from 0.0 to 2.0%
A glass composition including SiO2 in an amount from 74.5 to 80.0% by weight, Al2O3 in an amount from 5.0 to 9.5% by weight, MgO in an amount from 8.75 to 14.75% by weight, CaO in an amount from 0.0 to 3.0% by weight, Li2O in an amount from 2.0 to 3.25% by weight, Na2O in an amount from 0.0 to 2.0% by weight is provided. Glass fibers formed from the inventive composition may be used in applications that require high strength, high stiffness, and low weight. Such applications include woven fabrics for use in forming wind blades, armor plating, and aerospace structures.
대표청구항▼
1. A glass composition for preparing high strength, light weight glass fibers comprising: SiO2 in an amount from about 74.5 to about 80.0% by weight of the total composition,Al2O3 in an amount from about 5.0 to about 9.5% by weight of the total composition,CaO in an amount from 0.0 to about 3.0% by
1. A glass composition for preparing high strength, light weight glass fibers comprising: SiO2 in an amount from about 74.5 to about 80.0% by weight of the total composition,Al2O3 in an amount from about 5.0 to about 9.5% by weight of the total composition,CaO in an amount from 0.0 to about 3.0% by weight of the total composition,MgO in an amount from about 8.75 to about 14.75% by weight of the total composition,Li2O in an amount from about 2.0 to about 3.25% by weight of the total composition, andNa2O in an amount from 0.0 to about 2.0% by weight of the total composition. 2. The glass composition of claim 1, wherein the SiO2 is present in an amount from about 76.0 to 79.0% by weight of the total composition. 3. The glass composition of claim 1, wherein the Al2O3 is present in an amount from about 5.5 to about 9.5% by weight of the total composition. 4. The glass composition of claim 1, wherein the Al2O3 is present in an amount from about 5.8 to about 9.5% by weight of the total composition. 5. The glass composition of claim 1, wherein the Al2O3 is present in an amount from about 5.5 to about 7.5% by weight of the total composition. 6. The glass composition of claim 1, wherein the MgO is present in an amount of greater than 11.14% by weight of the total composition. 7. The glass composition of claim 1, wherein the MgO is present in an amount from 8.75 to about 12.0% by weight of the total composition. 8. The glass composition of claim 1, wherein the MgO is present in an amount from 11.0 to about 14.0% by weight of the total composition. 9. The glass composition of claim 1, wherein the CaO is present in an amount from 0.3 to about 3.0% by weight of the total composition. 10. The glass composition of claim 9, wherein the CaO is present in an amount from 0.3 to about 1.8% by weight of the total composition. 11. The glass composition of claim 1, wherein the Li2O is present in an amount from 2.4 to about 3.0% by weight of the total composition. 12. The glass composition of claim 1, wherein the Na2O is present in an amount from 0.1 to about 2.0% by weight of the total composition. 13. The glass composition of claim 12, wherein the Na2O is present in an amount from 0.1 to about 1.1% by weight of the total composition. 14. The glass composition of claim 1, wherein said composition is substantially free of B2O3 and fluorine. 15. The glass composition of claim 1, wherein said composition has a ΔT up to about 87° C. 16. The glass composition of claim 15 wherein said composition has a ΔT up to about 50° C. 17. The glass composition of claim 1, wherein said composition has a log 3 temperature from about 1325° C. to about 1485° C. 18. The glass composition of claim 17 wherein said composition has a log 3 temperature from about 1327° C. to about 1436° C. 19. The glass composition of claim 1, wherein said composition has a log 3 temperature from about 1280° C. to about 1375° C. 20. The glass composition of claim 1, wherein said composition has a liquidus temperature no greater than about 1480° C. 21. The glass composition of claim 20, wherein said composition has a liquidus temperature of from about 1349° C. to about 1479° C. 22. The glass composition of claim 1, wherein components of said composition are melted in a refractory tank melter. 23. A continuous high strength, light weight glass fiber produced from a composition according to claim 1. 24. The glass fiber of claim 23, wherein said glass fiber has a specific modulus from about 33.7 M J/m to about 35.3 MJ/kg and a specific strength from about 1.80 MJ/kg to about 2.81 MJ/kg. 25. The glass fiber of claim 23, wherein said glass fibers have a pristine fiber tensile strength between about 4385 and about 4720 MPa, a modulus between about 80.6 and about 84.4 GPa, and a density between about 2.39 and about 2.45 g/cc. 26. The glass fiber of claim 25, wherein said glass fibers have a pristine fiber tensile strength between about 4400 and about 4675 MPa. 27. A reinforced composite product comprising: a polymer matrix; and a plurality of glass fibers wherein said glass fibers are according to claim 23. 28. The composite product of claim 27, wherein said polymer matrix is a thermoplastic polymer selected from polyesters, polypropylene, polyamide, polyethylene terephtalate, polybutylene and combinations thereof. 29. The composite product of claim 27, wherein said polymer matrix is a thermoset polymer selected from epoxy resins, unsaturated polyesters, phenolics, vinylesters and combinations thereof. 30. A method of preparing a reinforced composite product comprising combining at least one polymer matrix material and a plurality of glass fibers wherein said glass fibers are according to claim 23. 31. A method of forming a continuous high performance glass fiber comprising: providing a molten glass composition including a composition of claim 1; anddrawing said molten glass composition through orifices in a bushing to form a continuous glass fiber. 32. The method of claim 31 wherein said glass fiber has a specific modulus from about 33.7 MJ/m to about 35.2 MJ/kg and a specific strength from about 1.80 MJ/kg to about 2.81 MJ/kg. 33. The method of claim 31 wherein said glass fiber has a pristine fiber tensile strength between about 4385 and about 4720 MPa, a modulus between about 80.6 and about 84.4 GPa, and a density between about 2.39 and about 2.45 g/cc. 34. The method of claim 33 wherein said glass fiber has a pristine fiber tensile strength between about 4400 and about 4675 MPa. 35. A method of preparing a reinforced composite product comprising preparing a plurality of fibers according to the method of claim 31 and combining said fibers with at least one polymer matrix material.
McGinnis, Peter Bernard; Hofmann, Douglas; Baker, David J.; Wingert, John W.; Bemis, Byron, Method of manufacturing high strength glass fibers in a direct melt operation and products formed there from.
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