Methods for producing strengthened and durable glass containers
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C03C-017/23
C03B-023/11
C03C-015/02
C03C-004/20
C03C-017/00
C03C-015/00
C03C-017/30
C03C-017/32
C03C-021/00
C03C-023/00
A61J-001/14
A61J-001/05
출원번호
US-0949320
(2015-11-23)
등록번호
US-10065884
(2018-09-04)
발명자
/ 주소
Bookbinder, Dana Craig
Fiacco, Richard Michael
Gross, Timothy Michael
출원인 / 주소
CORNING INCORPORATED
대리인 / 주소
Dinsmore & Shohl LLP
인용정보
피인용 횟수 :
0인용 특허 :
144
초록▼
A method of forming a glass container including forming a glass container having a sidewall at least partially enclosing an interior volume, at least a portion of an interior surface of the sidewall having an interior surface layer; and contacting the glass container with a substantially fluoride-fr
A method of forming a glass container including forming a glass container having a sidewall at least partially enclosing an interior volume, at least a portion of an interior surface of the sidewall having an interior surface layer; and contacting the glass container with a substantially fluoride-free aqueous treating medium to remove a thin layer of the interior surface layer having a thickness of from about 100 nm to about 1.0 μm from the interior surface of the sidewall. The interior surface is resistant to delamination. Before contacting the glass container with the substantially fluoride-free aqueous treating medium, the exterior surface of the sidewall comprises strength-limiting surface flaws having a first shape, and after the contacting the exterior surface of the sidewall with the substantially fluoride-free aqueous treating medium, the strength-limiting surface flaws have a second shape.
대표청구항▼
1. A method of forming a glass container, the method comprising: forming a glass container comprising a sidewall at least partially enclosing an interior volume, at least a portion of an interior surface of the sidewall having an interior surface layer, and the interior surface of the sidewall havin
1. A method of forming a glass container, the method comprising: forming a glass container comprising a sidewall at least partially enclosing an interior volume, at least a portion of an interior surface of the sidewall having an interior surface layer, and the interior surface of the sidewall having a delamination factor of greater than 10; andcontacting the glass container with a substantially fluoride-free aqueous treating medium to remove a thin layer of the interior surface layer having a thickness of from about 100 nm to about 1.0 μm from the interior surface of the sidewall, whereinthe interior surface of the sidewall has a delamination factor of less than or equal to 10 after the thin layer of the interior surface layer is removed. 2. The method according to claim 1, wherein the glass container has a delamination factor of less than or equal to 6 after the thin layer of the interior surface layer is removed. 3. The method according to claim 1, wherein the thin layer of the interior surface layer that is removed has a thickness of from about 100 nm to about 750 nm. 4. The method according to claim 1, wherein the substantially fluoride-free aqueous treating medium comprises about 0.001 weight percent to about 0.15 weight percent fluoride ions. 5. The method according to claim 1, wherein the substantially fluoride-free aqueous treating medium is a substantially fluoride-free aqueous acidic treating medium comprising a member selected from the group consisting of HCl, HBr, HNO3, H2SO4, H2SO3, H3PO4, H3PO2, HOAc, citric acid, tartaric acid, ascorbic acid, ethylenediaminetetraacetic acid, methanesulfonic acid, toluenesulfonic acid, a mixture thereof, and a combination comprising at least one of the foregoing acids. 6. The method according to claim 5, wherein the substantially fluoride-free aqueous acidic treating medium comprises a member selected from the group consisting of HCl, HNO3, H2SO4, and H3PO4. 7. The method according to claim 5, wherein the substantially fluoride-free aqueous acidic treating medium has a pH of less than or equal to about 3. 8. The method according to claim 1, wherein the substantially fluoride-free aqueous treating medium comprises about 0.001 weight percent to about 0.015 weight percent fluoride ions. 9. The method according to claim 1, wherein the glass container is formed from a Type I, Class A or a Type I, Class B glass according to ASTM Standard E438-92. 10. The method according to claim 1, wherein the glass container is formed from a borosilicate glass. 11. The method according to claim 1, further comprising contacting an exterior surface of the sidewall with the substantially fluoride-free aqueous treating medium. 12. The method according to claim 11, wherein, before the exterior surface of the sidewall is contacted with the substantially fluoride-free aqueous treating medium, the exterior surface of the sidewall comprises strength-limiting surface flaws having a first shape, and after the contacting the exterior surface of the sidewall with the substantially fluoride-free aqueous treating medium, the strength-limiting surface flaws have a second shape. 13. The method according to claim 12, wherein the second shape comprises blunted crack tips. 14. The method according to claim 11, wherein the glass container is an ion-exchange-strengthened glass container comprising a surface compressive stress layer on at least the exterior surface of the sidewall. 15. The method according to claim 14, wherein the exterior surface of the sidewall has a compressive stress of greater than or equal to about 250 MPa. 16. The method according to claim 14, wherein a level of surface compression is reduced by an amount of from about 0.1% to about 4% by contacting the exterior surface of the sidewall with the substantially fluoride-free aqueous treating medium. 17. The method according to claim 1, further comprising applying a low-friction coating on at least the exterior surface of the sidewall. 18. The method according to claim 17, wherein the low-friction coating is thermally stable.
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