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특허 상세정보

Glass composition

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) C03C-013/00    C03C-003/04   
미국특허분류(USC) 106/50 ; 106/52
출원번호 US-0958307 (1978-11-06)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 43  인용 특허 : 1
초록

Boron-free and fluorine-free glass compositions are provided that have properties of liquidus temperature, softening point and tensile strength similar to those of “E”or “621”glass compositions. These boron-free glass compositions have in percent by weight the following components: ________________________________ SiO2 55-61 Al2O3 12-18 MgO 4-10 CaO 14-18 Na2O 0.1-1.5 Li2O 0.1-1.5 BaO 0.0-1.0 ________________________________ The compositions may also have minor amounts of Fe2O3, TiO2, and K2O. The glass compositions may be only boron-free and may have a ...

대표
청구항

A boron-free glass fiber consisting essentially of 55-61 percent SiO2, 12 to 18 percent Al2O3, 4 to 10 percent MgO, 14 to 18 percent CaO, 0.1 to 1.5 percent Na2O, 0.1 to 1.5 percent Li2O, all percents being by weight of the composition.

이 특허를 인용한 특허 피인용횟수: 43

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