Glass composition for producing high strength and high modulus fibers
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C03C-013/00
C03C-003/087
C03C-003/085
C08K-007/14
C03B-037/04
출원번호
US-0719520
(2011-06-30)
등록번호
US-9346944
(2016-05-24)
국제출원번호
PCT/IB2011/052899
(2011-06-30)
§371/§102 date
20130425
(20130425)
국제공개번호
WO2012/001656
(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 :
0인용 특허 :
4
초록▼
A glass composition including SiO2 in an amount from 60.0 to 73.01% by weight, Al2O3 in an amount from about 13.0 to about 26.0% by weight, MgO in an amount from about 5.0 to about 12.75% by weight, CaO in an amount from about 3.25 to about 4.0% by weight, Li2O in an amount from about 3.25 to about
A glass composition including SiO2 in an amount from 60.0 to 73.01% by weight, Al2O3 in an amount from about 13.0 to about 26.0% by weight, MgO in an amount from about 5.0 to about 12.75% by weight, CaO in an amount from about 3.25 to about 4.0% by weight, Li2O in an amount from about 3.25 to about 4.0% by weight, and Na2O in an amount from 0.0 to about 0.75% 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, but are not limited to, woven fabrics for use in forming wind blades, armor plating, and aerospace structures.
대표청구항▼
1. A composition for preparing high strength, light weight glass fibers comprising: SiO2 in an amount from about 60.0 to about 73.01% by weight of the total composition,Al2O3 in an amount from about 21.69 to about 26.0% by weight of the total composition,MgO in an amount from about 5.0 to about 12.7
1. A composition for preparing high strength, light weight glass fibers comprising: SiO2 in an amount from about 60.0 to about 73.01% by weight of the total composition,Al2O3 in an amount from about 21.69 to about 26.0% by weight of the total composition,MgO in an amount from about 5.0 to about 12.75% by weight of the total composition,CaO in an amount from 0.1 to about 2.74% by weight of the total composition,Li2O in an amount from about 3.25 to about 4.0% by weight of the total composition, andNa2O in an amount from 0.0 to about 0.75% by weight of the total composition, wherein said composition is free of any intentionally added ZnO and wherein said composition has a liquidus temperature no greater than 1380° C. 2. The glass composition of claim 1, wherein SiO2 is present in an amount from about 63.0 to about 66.0% by weight of the total composition,Al2O3 is present in an amount from about 21.69 to about 26.0% by weight of the total composition,MgO is present in an amount from 6.5 to about 8.5% by weight of the total composition,CaO is present in an amount from about 0.45 to about 2.0% by weight of the total composition, andLi2O is present in an amount from about 3.25 to about 3.5% by weight of the total composition. 3. The glass composition of claim 1 wherein, MgO is present in an amount from 5.0 to about 10.70% by weight of the total composition,CaO is present in an amount from about 0.1 to about 2.7% by weight of the total composition, andLi2O is present in an amount from about 3.25 to about 4.0% by weight of the total composition. 4. The glass composition of claim 1, wherein SiO2 is present in an amount from about 60.0 to about 65.5% by weight of the total composition,CaO is present in an amount from about 0.45 to about 2.3% by weight of the total composition, andLi2O is present in an amount from about 3.25 to about 3.7% by weight of the total composition. 5. The glass composition of claim 1, wherein said composition is substantially free of B2O3 and fluorine. 6. The glass composition of claim 1, wherein said composition has a ΔT up to about 205° C. 7. The glass composition of claim 6, wherein said composition has a ΔT from 28° C. to 205° C. 8. The glass composition of claim 1, wherein said composition has a log 3 temperature from about 1280° C. to about 1505° C. 9. The glass composition of claim 8, wherein said composition has a log 3 temperature from about 1283° C. to about 1501° C. 10. The glass composition of claim 1, wherein said composition has a liquidus temperature no greater than about 1320° C. 11. The glass composition of claim 1, wherein components of said composition are melted in a refractory tank melter. 12. A continuous high strength, light weight glass fiber produced from a composition according to claim 1. 13. The glass fiber of claim 12, wherein said glass fiber has a specific modulus from 35 MJ/kg to about 36 MJ/kg and a specific strength from about 1.8 MJ/kg to about 2.0 MJ/kg. 14. The glass fiber of claim 12 or claim 13, wherein said glass fiber has a pristine fiber tensile strength from about 4390 to about 4820 MPa, a modulus from about 82 to about 90 GPa, and a density from about 2.39 to about 2.52 g/cc. 15. The glass fiber of claim 14, wherein said glass fiber has a modulus between about 83 and about 90 GPa. 16. The glass fiber of claim 14, wherein said glass fiber has a density of from 2.39 to less than 2.477 g/cc. 17. A method of forming a continuous high performance glass fiber comprising: providing a molten glass composition including a composition according to claim 1; anddrawing said molten glass composition through orifices in a bushing to form a continuous glass fiber. 18. The method of claim 17, wherein said glass fiber has a specific modulus from about 34.5 M J/kg to about 35.9 M J/kg and a specific strength from about 1.8 M J/kg to about 2.0 MJ/kg. 19. The method of claim 17, wherein said glass fiber has a pristine fiber tensile strength from about 4390 to about 4820 MPa, a modulus from about 82 to about 90 GPa, and a density from about 2.39 to about 2.52 g/cc. 20. The method of claim 18, wherein said glass fiber has a modulus between about 83 and about 90 GPa. 21. The method of claim 19, wherein said glass fiber has a density of from 2.39 to less than 2.477 g/cc. 22. A reinforced composite product comprising: a polymer matrix; anda plurality of glass fibers, wherein said glass fibers are according to claim 12. 23. The composite product of claim 22, wherein said polymer matrix is a thermoplastic polymer selected from polyesters, polypropylene, polyamide, polyethylene terephtalate, polybutylene and combinations thereof. 24. The composite product of claim 22, wherein said polymer matrix is a thermoset polymer selected from epoxy resins, unsaturated polyesters, phenolics, vinylesters and combinations thereof. 25. A method of preparing a reinforced composite product comprising preparing a plurality of fibers according to the method of claim 17 and combining said fibers with at least one polymer matrix material.
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