EP1189846A1 - Glasfaserzusammensetzung - Google Patents

Glasfaserzusammensetzung

Info

Publication number
EP1189846A1
EP1189846A1 EP00936210A EP00936210A EP1189846A1 EP 1189846 A1 EP1189846 A1 EP 1189846A1 EP 00936210 A EP00936210 A EP 00936210A EP 00936210 A EP00936210 A EP 00936210A EP 1189846 A1 EP1189846 A1 EP 1189846A1
Authority
EP
European Patent Office
Prior art keywords
percent
weight
glass
glass fiber
content
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP00936210A
Other languages
English (en)
French (fr)
Inventor
Frederick T. Wallenberger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
PPG Industries Ohio Inc
Original Assignee
PPG Industries Ohio Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by PPG Industries Ohio Inc filed Critical PPG Industries Ohio Inc
Publication of EP1189846A1 publication Critical patent/EP1189846A1/de
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C13/00—Fibre or filament compositions

Definitions

  • E glass The most common glass composition for making continuous glass fiber strands for textiles and glass fiber reinforcements is "E" glass.
  • the requirements as to what type of composition constitutes an E-glass composition are included in ASTM D578-98.
  • An advantage of using E-glass is that its liquidus temperature is well below its forming temperature, i.e. typically greater than 100°F (56°C) and generally between 150°F (83°C) to 200°F (111°C).
  • forming temperature and T F0RM mean the temperature of the glass at which the viscosity of the glass is log 3, or 1000 poise
  • liquidus temperature and “T UQ” mean the temperature at which solid phase (crystals) and liquid phase (melt) are in equilibrium.
  • U.S. Patent No. 3,929,497 discloses a boron-free and fluorine-free glass composition containing titanium dioxide in the range of 0.5 to 5 percent by weight and Fe 2 O 3 in the range of 5 to 15 percent by weight.
  • U.S. Patent No. 4,199,364 discloses a boron-free and fluorine-free glass composition that contains Li 2 O in the range of 0.1 to 1.5 percent by weight and may also include barium oxide. The liquidus temperature of the compositions is over 2200°F.
  • U.S. Patent No. 4,542,106 discloses a boron-free and fluorine-free glass composition that contains 1 to 5 percent by weight TiO 2 .
  • the fibers also have a seed count of 5 seeds or less per cubic centimeter of glass and an electrical leakage value of 2.8 nanoamperes or less.
  • U.S. Patent No. 5,789,329 discloses a boron-free and fluorine-free glass composition that contains up to 0.9 percent by weight TiO 2 and has a ⁇ T of at least 100°F (56°C).
  • the glass fiber composition further includes at least one material selected from the group consisting of: 0.05 to 1.5 percent by weight Li 2 O, 0.05 to 1.5 percent by weight ZnO, 0.05 to 3 percent by weight MnO, and 0.05 to 3 percent by weight MnO 2 .
  • MgO is also a main constituent of the glass compositions of the present invention. It has been found that the heating and melting profile of a glass fiber composition, and in particular the liquidus temperature, can be controlled and in particular optimized by controlling the amount of MgO, which an object of the present invention and will be discussed later in more detail. Oftentimes additional materials are added to the glass composition to modify the melt properties of the glass. For example, and without limiting the present invention, Li 2 O, ZnO 2 , MnO and MnO 2 can be added to the glass fiber composition to reduce T UQ . In one nonlimiting embodiment of the glass fibers of the present invention, the glass composition can include one or more of these materials in the following amounts.
  • Boron is another material that can be added to glass fiber compositions to reduce T UQ .
  • the inclusion of boron results in the production of particulates that, depending on the particulate level, may have to be removed from a melting furnace exhaust stream before being released into the environment.
  • the amount of B 2 O 3 in a glass fiber composition can be as high as 10 wt%
  • one nonlimiting embodiment of a glass composition of the present invention includes no greater than 3 wt% B 2 O 3 , preferably no greater than 2 wt% B 2 O 3 , and more preferably no greater than 1 wt% B 2 O 3 .
  • the glass composition is essentially boron-free, i.e.
  • glass fibers of the present invention can be prepared in the conventional manner well known in the art, by blending the raw materials used to supply the specific oxides that form the composition of the fibers. For example, typically sand is used for SiO 2 , clay for AI 2 O 3 , lime or limestone for CaO, and dolomite for MgO and some of the CaO. As discussed earlier, the glass can include other additives that are added to modify the glass properties as well as small amounts of melting and refining aids, tramp materials or impurities.
  • the fiber forming apparatus can be, for example, a forming device for synthetic textile fibers or strands in which fibers are drawn from nozzles, such as but not limited to a spinneret, as is known to those skilled in the art.
  • a forming device for synthetic textile fibers or strands in which fibers are drawn from nozzles such as but not limited to a spinneret, as is known to those skilled in the art.
  • Typical forehearths and glass fiber forming arrangements are shown in K. Loewenstein, The Manufacturing Technology of Continuous Glass Fibres, (Third Edition 1993) at pages 85-107 and pages 115-135, which are hereby incorporated by reference.
  • Tables 1-7 show laboratory examples of glass fiber compositions that illustrate the effect of MgO on the liquidus temperature of the glass compositions. Boron and fluorine were not included in these compositions.
  • the furnace temperature was then raised to 2700°F (1482°C) and held there for 4 hours.
  • the molten glass was then fritted in water and dried.
  • the forming temperature i.e. the glass temperature at a viscosity of 1000 poise, was determined by ASTM method C965-81 , and the liquidus temperature by ASTM method C829-81.
  • glass fiber compositions made from commercial grade materials and melted under conventional operating conditions will have similar batch and melt weight percents as discussed above, except that the batch and melt weight percents for the volatile components of the composition will actually be closer to each other than the batch and melt wt% of the laboratory melts because in a conventional melting operation, the materials are exposed to the high melting temperatures for less time than the 4 hours of exposure for the laboratory melts. Determination of the high temperature viscosity, T F0RM , was based on the glass samples being compared against physical standards supplied by the National Institute of Standards and Testing (NIST).
  • Examples 31-38 in Table 4 show the change in the liquidus temperature of a typical glass fiber forming composition that further includes 0.5 wt% TiO 2 and 0.90 wt% Li 2 O, as the amount of MgO is varied from 1.7 to 3.12 wt%.
  • Examples 39-49 in Table 5 show the change in the liquidus temperature of a typical glass fiber forming composition that further includes 1.1 wt% TiO 2 , 0.45 wt% Li 2 O and 0.45 wt% ZnO, as the amount of MgO is varied from 1.7 to 3.1 wt%.
  • the liquidus temperature approaches a minimum in the range of 1.8 to 2.5 wt% MgO, and reaches a minimum temperature at 2.0 to 2.3 wt% MgO.
  • Curve 6 in Figure 1 illustrates the relationship between the liquidus temperature and the amount of MgO in the glass compositions shown in Examples 50-58 in Table 6.
  • the liquidus temperature approaches a minimum in the range of 2.3 to 2.7 wt% MgO, and reaches a minimum temperature at 2.4 to 2.6 wt% MgO.
  • Curve 7 in Figure 1 illustrates the relationship between the liquidus temperature and the amount of MgO in the glass compositions shown in Examples 59-66 in Table 7.
  • the liquidus temperature for Curves A, B and C approaches a minimum in the range of 1.7 to 2.65 wt% MgO, and reaches a minimum temperature at 1.90 to 2.55 wt% MgO.
  • the fact that the glass compositions of Tables 2-6 exhibit a minimum liquidus temperature (as shown in Curves 2-6, A, B and C) than the glass compositions of Table 1 (as shown in Curve 1) is to be expected since Examples 8-58 in Tables 2-6 all included additives, and in particular, Li 2 O and/or ZnO, which reduce liquidus temperature.
  • the minimum liquidus temperatures for the glass compositions of Tables 2-6 are generally within an MgO range lower than that of the glass compositions of Table 1.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Glass Compositions (AREA)
EP00936210A 1999-05-28 2000-05-23 Glasfaserzusammensetzung Withdrawn EP1189846A1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US13653899P 1999-05-28 1999-05-28
US136538P 1999-05-28
PCT/US2000/014155 WO2000073231A1 (en) 1999-05-28 2000-05-23 Glass fiber composition

Publications (1)

Publication Number Publication Date
EP1189846A1 true EP1189846A1 (de) 2002-03-27

Family

ID=22473273

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00936210A Withdrawn EP1189846A1 (de) 1999-05-28 2000-05-23 Glasfaserzusammensetzung

Country Status (4)

Country Link
EP (1) EP1189846A1 (de)
JP (1) JP2003500330A (de)
CA (1) CA2375719C (de)
WO (1) WO2000073231A1 (de)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6962886B2 (en) * 1999-05-28 2005-11-08 Ppg Industries Ohio, Inc. Glass Fiber forming compositions
CZ305747B6 (cs) 2000-09-06 2016-03-02 Ppg Industries Ohio, Inc. Skelná kompozice pro skleněná vlákna
EP2330086A1 (de) 2001-10-18 2011-06-08 PPG Industries Ohio, Inc. Glasfaserzusammensetzung
US7022634B2 (en) * 2003-07-07 2006-04-04 Johns Manville Low boron E-glass composition
US7449419B2 (en) * 2003-09-09 2008-11-11 Ppg Industries Ohio, Inc. Glass compositions, glass fibers, and methods of inhibiting boron volatization from glass compositions
FR2867775B1 (fr) * 2004-03-17 2006-05-26 Saint Gobain Vetrotex Fils de verre aptes a renforcer des matieres organiques et/ou inorganiques
FR2867776B1 (fr) * 2004-03-17 2006-06-23 Saint Gobain Vetrotex Fils de verre aptes a renforcer des matieres organiques et/ou inorganiques
CN101087737B (zh) 2004-12-24 2011-01-12 日本板硝子株式会社 鳞片状玻璃
JP5442181B2 (ja) * 2005-07-05 2014-03-12 日本電気硝子株式会社 ガラス繊維組成物、ガラス繊維及びガラス繊維含有複合材料
JP5307541B2 (ja) * 2006-06-23 2013-10-02 日本板硝子株式会社 鱗片状ガラス
FR2910462B1 (fr) * 2006-12-22 2010-04-23 Saint Gobain Vetrotex Fils de verre aptes a renforcer des matieres organiques et/ou inorganiques
JP5331110B2 (ja) * 2008-05-28 2013-10-30 日本板硝子株式会社 鱗片状ガラス及び被覆鱗片状ガラス
DE102008037955B3 (de) * 2008-08-14 2010-04-15 Bürger, Gerhard Hochtemperaturbeständiges und chemisch beständiges Glas mit verbesserter UV-Lichttransmission sowie dessen Verwendung
CN103244793B (zh) * 2013-05-31 2015-12-09 重庆再升科技股份有限公司 一种新型玻璃纤维真空绝热板芯材及制备方法
CN112320883B (zh) * 2021-01-07 2021-03-19 格润化学(东营)有限公司 污水处理剂及其制备方法
TW202400539A (zh) * 2022-03-30 2024-01-01 日商日本板硝子股份有限公司 玻璃纖維
JPWO2023190980A1 (de) * 2022-03-30 2023-10-05
TW202402701A (zh) * 2022-03-30 2024-01-16 日商日本板硝子股份有限公司 玻璃纖維
CN115368011B (zh) * 2022-09-09 2023-06-23 中国建筑材料科学研究总院有限公司 用于光纤传像元件的相容性匹配良好的芯皮玻璃及其制备方法
CN118724466A (zh) * 2023-03-29 2024-10-01 巨石集团有限公司 一种低密度高性能玻璃纤维组合物及其玻璃纤维和复合材料

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1391384A (en) * 1972-04-28 1975-04-23 Owens Corning Fiberglass Corp Glass compositions fibres and mehtods of making same

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4066466A (en) * 1976-07-22 1978-01-03 Ppg Industries, Inc. Low pollution glass fiber compositions
US4542106A (en) * 1983-12-19 1985-09-17 Ppg Industries, Inc. Fiber glass composition
JPS63225552A (ja) * 1987-03-13 1988-09-20 Nitto Boseki Co Ltd 繊維用紫外線吸収ガラス組成物
FR2692248B1 (fr) * 1992-06-16 1995-08-04 Vetrotex France Sa Fibres de verre resistant au milieu acide.
RU2027687C1 (ru) * 1992-12-28 1995-01-27 Александр Иванович Фокин Стекло для стекловолокна
AU692712B2 (en) * 1995-06-06 1998-06-11 Owens Corning Boron-free glass fibers
FR2768144B1 (fr) * 1997-09-10 1999-10-01 Vetrotex France Sa Fils de verre aptes a renforcer des matieres organiques et/ou inorganiques

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1391384A (en) * 1972-04-28 1975-04-23 Owens Corning Fiberglass Corp Glass compositions fibres and mehtods of making same

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO0073231A1 *

Also Published As

Publication number Publication date
WO2000073231A1 (en) 2000-12-07
CA2375719C (en) 2007-01-09
CA2375719A1 (en) 2000-12-07
JP2003500330A (ja) 2003-01-07

Similar Documents

Publication Publication Date Title
US6686304B1 (en) Glass fiber composition
US6818575B2 (en) Glass fiber forming compositions
CA2375719C (en) Glass fiber composition
JP3909862B2 (ja) ホウ素を含有しないガラス繊維
US7144836B2 (en) Glass fiber forming compositions
EP0066811B1 (de) Optische Multikomponentenglasfaser für optische Kommunikation und Gläser hierfür
US3847627A (en) Glass compositions, fibers and methods of making same
MXPA05013323A (es) Fibras de vidrio para reforzar materiales organicos y/o inorganicos, compuestos que encierran dichas fibras y compuestos utilizados.
JP3248279B2 (ja) 抗菌性ガラス用組成物
CN1187176A (zh) 无硼玻璃纤维
EP1187793A1 (de) Glasfaserzusammensetzung
EP2330086A1 (de) Glasfaserzusammensetzung
JP2000247684A (ja) ガラス繊維
CA2223603C (en) Boron-free glass fibers
Bacon et al. Investigation of the kinetics of crystallization of molten binary and ternary oxide systems Quarterly status report, 1 Dec. 1967-29 Feb. 1968
AU2002349954A1 (en) Glass fiber forming compositions

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20011206

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

17Q First examination report despatched

Effective date: 20020829

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20091201