EP1425774A2 - Mastic pour le culot de lampes electriques - Google Patents

Mastic pour le culot de lampes electriques

Info

Publication number
EP1425774A2
EP1425774A2 EP02769903A EP02769903A EP1425774A2 EP 1425774 A2 EP1425774 A2 EP 1425774A2 EP 02769903 A EP02769903 A EP 02769903A EP 02769903 A EP02769903 A EP 02769903A EP 1425774 A2 EP1425774 A2 EP 1425774A2
Authority
EP
European Patent Office
Prior art keywords
base
putty
poly
paraphenylene
percent
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Withdrawn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
EP02769903A
Other languages
German (de)
English (en)
Inventor
Rainer Schirmer
Johann Schönwetter
Armin Wilhelm
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.)
Osram GmbH
Original Assignee
Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
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 Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH filed Critical Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
Publication of EP1425774A2 publication Critical patent/EP1425774A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J5/00—Details relating to vessels or to leading-in conductors common to two or more basic types of discharge tubes or lamps
    • H01J5/50—Means forming part of the tube or lamps for the purpose of providing electrical connection to it
    • H01J5/54—Means forming part of the tube or lamps for the purpose of providing electrical connection to it supported by a separate part, e.g. base
    • H01J5/58—Means for fastening the separate part to the vessel, e.g. by cement

Definitions

  • the invention relates to a base putty for electric lamps according to the preamble of patent claim 1.
  • Such a base cement is disclosed, for example, in international patent application with publication number WO 98/43267.
  • the base putty is usually used to fix the lamp vessel in the base sleeve.
  • a ring made of putty is attached to the inside of the base sleeve, near its edge. The putty is applied and the lamp vessel is inserted into the base sleeve at different production facilities, so that the base sleeves provided with the kit ring still have to be transported for the base.
  • the base sleeves provided with the kit ring are also stored for several weeks before they are attached to the lamp vessels.
  • a big problem with the putty production and the base of the lamps are the correct adjustment of the viscosity and the swellability of the base putty.
  • the viscosity of the putty must be set in such a way that the putty does not flow into the base of the base sleeve during transport or storage of the base sleeve coated with putty and clog the openings for the power supply lines.
  • This object of the invention is achieved by the features of patent claim 1 or by the features of patent claim 4. Particularly preferred embodiments of the invention are described in the dependent claims.
  • the base cement for electric lamps according to the invention has one or more resins and one or more fillers and optionally solvents and contains poly-paraphenylene terephthalamides as thixotropic agents.
  • Poly-para-phenylene-terephthalamide is also known under the brand name KEVLAR® from DuPont.
  • the viscosity of the base putty can be varied within wide limits by adding poly-paraphenylene terephthalamide without impairing the ability of the base putty to swell.
  • the mechanical coating of the putty in the base sleeve is carried out by the . Addition of poly-paraphenylene-terephthalamide makes it easier because the putty stiffens immediately after painting due to its thixotropic properties.
  • Putties that have a particularly low viscosity in the doughed and dormant state can therefore be processed mechanically.
  • the proportion of poly-paraphenylene terephthalamide in the base putty is 0.05 percent by weight to 30 percent by weight based on the dry weight of the base putty, that is, based on the resin and filler components of the putty and without taking into account the solvent content. Since poly-paraphenylene-terephthalamide is a relatively expensive additive in comparison to the other components of the base cement, the smallest possible amount of poly-paraphenylene-terephthalamide is used.
  • poly-paraphenylene terephthalamides are used as thi in any known base cement for electric lamps.
  • Xotropic agent can be used. It is irrelevant whether the base putty contains synthetic resins, natural resins or a mixture of these two types of resin.
  • Poly-paraphenylene terephthalamides are also compatible with the customary fillers of the known base cement.
  • the known solvents or suspending agents such as ethanol, butanol or water, can also be used to make the base cement.
  • the addition of poly-paraphenylene terephthalamides reduces the flowability of the putty. An impairment of the swellability of the putty by the addition of poly-paraphenylene terephthalamides could not be observed in any case.
  • Poly-paraphenylene terephthalamide is preferably mixed in powder form with the base putty in order to ensure the best possible mixing and homogenization with the putty components.
  • fibrous poly-paraphenylene terephthalamides provided that the fibers are sufficiently small to permit homogeneous mixing with the cement components and not to influence the metering process.
  • the size of the fibers should therefore be adapted to the average grain size of the other cement components, especially the fillers.
  • the resin content of the base cement consists of 8.1 percent by weight phenolic resin with the designation K0791 from Bakelite, 0.7 percent by weight silicone resin with the designation 6- 2230 from Dow Corning, 2.5 percent by weight rosin and 0. 8% by weight of shellac.
  • the filler component of the base cement is formed by 74.5 percent by weight calcite with the designation JP / LM from Merkle GembH and 8.0 percent by weight calcite with the designation Nofacal Z from Bayerische Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg Weg
  • the base putty contains 0.3 percent by weight of a 1.8 percent Fuchsinrot solution as a dye. To reduce the flowability of the putty, the base putty also contains 0.3% by weight of poly-paraphenylene-terephthalamide.
  • each 1000 g of base cement powder contains 770.0 g of calcite, 84.5 g of phenolic resin, 84.5 g of silicone resin and 61.0 g of polyvinyl butyral. 3.0 g of high-purity silica, which is commercially available under the brand name Aerosil ®, and 2.4 g of poly-paraphenylene terephthalamides in powder form are added to each of these 1000 g of base cement powder. At least 75 g of ethanol per 1000 g of base cement powder is added to this base cement powder as a solvent.
  • each 1000 g of base cement powder contains 830.2 g of calcite, 80.0 g of phenolic resin, 12.0 g of silicone resin and 55.2 g of polyvinyl butyral and 22.6 g of triphenyl phosphate.
  • 3.0 g of high-purity silica, which is commercially available under the brand name Aerosil®, and 2.4 g of poly-paraphenylene-terephthalamide in powder form are added to each of these 1000 g of base putty powder.
  • At least 50 g of ethanol per 1000 g of base cement powder is added to this base cement powder as a solvent.
  • each 1000 g of base cement powder contains 852.6 g of calcite, 83.2 g of phenolic resin, 8.4 g of silicone resin and 55.2 g of polyvinyl butyral and 22.6 g of triphenyl phosphate.
  • 3.0 g of high-purity silica, which is commercially available under the brand name Aerosil®, and 3.0 g of poly-paraphenylene terephthalamides in powder form are added to each of these 1000 g of base cement powder.
  • At least 70 g of ethanol per 1000 g of base cement powder is added to this base cement powder as a solvent.

Landscapes

  • Adhesives Or Adhesive Processes (AREA)
  • Sealing Material Composition (AREA)
  • Paints Or Removers (AREA)
  • Common Detailed Techniques For Electron Tubes Or Discharge Tubes (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Polyamides (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

L'invention concerne un mastic destiné au culot de lampes électriques et contenant des polyparaphénylène-téréphtalamides en tant qu'agents thixotropes. Selon l'invention, des polyparaphénylène-téréphtalamides sont utilisés dans des mastics pour culots afin d'ajuster la viscosité, notamment afin de réduire la fluidité du mastic.
EP02769903A 2001-09-13 2002-09-05 Mastic pour le culot de lampes electriques Withdrawn EP1425774A2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10145232 2001-09-13
DE10145232A DE10145232A1 (de) 2001-09-13 2001-09-13 Sockelkitt für elektrische Lampen
PCT/DE2002/003280 WO2003025964A2 (fr) 2001-09-13 2002-09-05 Mastic pour le culot de lampes electriques

Publications (1)

Publication Number Publication Date
EP1425774A2 true EP1425774A2 (fr) 2004-06-09

Family

ID=7698960

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02769903A Withdrawn EP1425774A2 (fr) 2001-09-13 2002-09-05 Mastic pour le culot de lampes electriques

Country Status (10)

Country Link
US (1) US20040242749A1 (fr)
EP (1) EP1425774A2 (fr)
JP (1) JP2005502778A (fr)
CN (1) CN1322530C (fr)
AR (1) AR036519A1 (fr)
CA (1) CA2460487A1 (fr)
DE (1) DE10145232A1 (fr)
HU (1) HUP0501190A2 (fr)
TW (1) TW574336B (fr)
WO (1) WO2003025964A2 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202006001907U1 (de) * 2006-02-07 2006-04-13 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Entladungslampe mit vergossenem Sockel
CN102433089B (zh) * 2011-09-13 2013-09-18 杭州电子科技大学 一种节能灯粘合剂的制备方法
CN102719204A (zh) * 2012-07-10 2012-10-10 镇江智鹰照明光源有限公司 节能灯碳纤维增强粘合剂及其制备方法

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2633457A (en) * 1949-03-19 1953-03-31 Gen Electric Basing cement
US3080243A (en) * 1960-09-14 1963-03-05 Gen Electric Basing cement
US3619347A (en) * 1969-03-13 1971-11-09 Salvox Mfg Co Recovery of wastepaper treated with urea or the like resins to impart wet strength
US3900413A (en) * 1972-06-15 1975-08-19 Commw Of Australia Reactive developer for electrophotography
US3876559A (en) * 1973-01-02 1975-04-08 Gen Electric Lamp basing cement
JPS5344957B2 (fr) * 1973-12-28 1978-12-02
US4219452A (en) * 1978-05-19 1980-08-26 Amsted Industries Incorporated Composite friction element
US4132701A (en) * 1977-06-10 1979-01-02 Claude Tapis Method of manufacturing a resin concrete
US4225496A (en) * 1977-07-27 1980-09-30 Borden, Inc. Acrylic latex cove base cement
US4492779A (en) * 1981-12-07 1985-01-08 Thiokol Corporation Aramid polymer and powder filler reinforced elastomeric composition for use as a rocket motor insulation
US4753704A (en) * 1986-06-30 1988-06-28 Loctite Corporation Process using light and light activated adhesive compositions to secure light opaque end caps to fluorescent tubes
US4990553A (en) * 1988-04-06 1991-02-05 Gte Products Corporation Basing cement containing silicon ether
US4952838A (en) * 1989-01-11 1990-08-28 Precision Lamp, Inc. Surface mount miniature incandescent lamp assembly
US5231123A (en) * 1990-01-02 1993-07-27 Gte Products Corporation Basing cement
FR2675995B1 (fr) * 1991-05-02 1993-07-23 Oreal Vernis a ongles incolore ou colore contenant des fibres d'aramide.
US5474842A (en) * 1991-08-20 1995-12-12 Hoiness; David E. Aramid particles as wear additives
US6011353A (en) * 1996-06-28 2000-01-04 General Electric Company Design and cooling of single ended quartz projection lamps
DE19635205A1 (de) * 1996-08-30 1998-03-05 Gerd Hoermansdoerfer Knochenzement
DE19712740A1 (de) * 1997-03-26 1998-10-01 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Sockelkitt für elektrische Lampen
DE29803285U1 (de) * 1998-02-26 1998-07-30 Schmidt Wolfgang Kleberfliess

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO03025964A2 *

Also Published As

Publication number Publication date
DE10145232A1 (de) 2003-04-10
CN1322530C (zh) 2007-06-20
AR036519A1 (es) 2004-09-15
WO2003025964A2 (fr) 2003-03-27
US20040242749A1 (en) 2004-12-02
HUP0501190A2 (en) 2006-06-28
CA2460487A1 (fr) 2003-03-27
TW574336B (en) 2004-02-01
WO2003025964A3 (fr) 2003-07-10
CN1554103A (zh) 2004-12-08
JP2005502778A (ja) 2005-01-27

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