WO1995014828A1 - Gap seal - Google Patents
Gap seal Download PDFInfo
- Publication number
- WO1995014828A1 WO1995014828A1 PCT/GB1994/002588 GB9402588W WO9514828A1 WO 1995014828 A1 WO1995014828 A1 WO 1995014828A1 GB 9402588 W GB9402588 W GB 9402588W WO 9514828 A1 WO9514828 A1 WO 9514828A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- seal
- seal according
- fire
- gap
- composition
- Prior art date
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/94—Protection against other undesired influences or dangers against fire
- E04B1/948—Fire-proof sealings or joints
Definitions
- This invention relates to gap seals, especially to seals for gaps between structural elements such as panels in building structures.
- the present invention provides a seal or joint for installation in such gaps, and which accommodates variation in the size of the gap and changes in the gap size resulting from movement of the panels, for instance by expansion or contraction or lateral movement of one or more adjoining panels.
- Such seals are sometimes referred to as expansion joints.
- the seal or joint of this invention also provides a fire-resistant barrier seal which additionally may confer thermal and/or acoustic and/or moisture insulation.
- the seal of the invention has a tubular form. It is flexible and is resiliently radially compressible.
- the tube may be produced in long lengths, for example by extrusion, for cutting to lengths required for the gap to be sealed.
- the seal is based on a composition comprising elastomeric material and intumescent material.
- Preferred additional ingredients include a fire-retardant agent and/or a fusible inorganic binder.
- Suitable ingredients include a reinforcing filler and/or a light ⁇ weight filler.
- One or more additional ingredients such as those known for use in elastomeric compositions, may also be present.
- the seal may comprise a laminate of the composition with one or more layers of other material.
- the elastomeric material provides a binder for the other composition ingredients.
- it may be a synthetic rubber.
- it is curable at a temperature lower than that at which the intumescent material commences to intumesce.
- a preferred elastomeric material is epdm.
- a suitable intumescent material is expandable graphite material.
- Such material usually comprises chemically-treated graphite which commences to expand by several times its original volume, e g 100-200 times, when heated above a critical temperature, e g about 190 ° C.
- Examples of expandable graphite materials are those available under the trade name 'CALLOTEK', for instance 'CALLOTEK 100' or 'CALLOTE 500'.
- the composition contains a high proportion of intumescent material.
- the ratio of intumescent material to elastomeric material may be at least 1 :1 by weight.
- the fire-retardant agent suitably is an ablative material.
- a preferred fire-retardant agent is alumina trihydrate. It is found that alumina trihydrate also enables an increase in the temperature employed for curing the elastomeric material in the composition without premature activation of the intumescent material.
- the fusible inorganic binder is a material which is capable of melting and resolidifying at elevated temperatures such as fire temperatures.
- a preferred fusible material comprises glass particles.
- the fusible material comprises a mixture of particles having different melting points, suitably commencing at about 200 ° C. Such a particle mixture may melt progressively over a temperature range of about 200 ° C to 900 ° C, for instance about 350 ° C to 700 ° C.
- the material then resolidifies above the melting temperature. For instance, resolidification may commence at a temperature above about 700 ° C or above about 900" C to form a crystalline solid. In doing so, it acts as a binder for maintenance of stability of the seal in fire conditions.
- suitable fusible glass particles are those available under the trade name "Ceepree" ex ICI/Brunner Mond & Company.
- a suitable reinforcing filler for the composition is carbon black.
- a suitable light-weight filler may be, for instance, hollow microspheres such as polymeric microbalioons.
- the polymeric microbalioons preferably are of a resilient material, for example epdm.
- Suitable resilient microbalioons are those obtainable under the trade name 'EXPANCEL'.
- Other ingredients may be selected from, for example, curatives, accelerators, processing aids, anti-ageing agents, fungicides, pigments, fibre reinforcements, etc.
- composition suitable for a seal or joint according to the invention may have the following formulation:- In ⁇ redien ⁇ s Parts by weight
- Intumescent agent (expandable graphite) 100-200
- Fire-retardant agent (alumina trihydrate) 20
- composition ingredients may be blended by conventional techniques.
- the tubular form of the seal may be produced by, for instance, extrusion of the composition.
- the composition may be subjected to elastomer-curing conditions in its tubular form.
- the cure temperature preferably should be below that at which the intumescent material would start to intumesce.
- An example of a suitable cure temperature is about 150 ° C.
- the seal is suitable for indoor and outdoor applications.
- the external diameter of the seal in its uncompressed state is greater than the width of the gap to be sealed, so that the seal is held in compressed state in the gap.
- a preferred level of compression of the seal in the gap is at least about 20% of the uncompressed seal diameter.
- the tubular wall thickness of the seal preferably should be such that, when the seal is subjected to fire conditions which degrade the elastomeric material, the composition expands intumescently into the hollow of the tube and across the gap to maintain or increase the barrier effect of the seal, and thereby prevents traverse of flame, smoke and other hazardous fire products.
- the ratio of the tubular wall thickness to the uncompressed seal external diameter may be in the range of, for instance, 0.08:1 to 0.5:1. Preferably the ratio is at least about 0.1 :1.
- the cross-sectional outer shape of the tubular wall of the seal may be of any shape suitable for fitting the seal into the gap to be sealed.
- the tubular wall of the seal in its normal uncompressed state, has a substantially circular cross-sectional surface shape, but alternatively it may have, for instance, an elliptical or a polygonal outer surface shape.
- the seal may be provided with one or more longitudinal slits in the wall, extending from the external surface thereof, to facilitate compression for insertion into a gap.
- One such slit may penetrate completely through the wall if desired, and in that case the seal preferably should be located in the gap such that the slit is not exposed.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Building Environments (AREA)
- Fireproofing Substances (AREA)
- Sealing Material Composition (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE69408338T DE69408338D1 (en) | 1993-11-26 | 1994-11-25 | JOINT SEAL |
AU11938/95A AU1193895A (en) | 1993-11-26 | 1994-11-25 | Gap seal |
EP95902841A EP0730695B1 (en) | 1993-11-26 | 1994-11-25 | Gap seal |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9324344.2 | 1993-11-26 | ||
GB9324344A GB2284218B (en) | 1993-11-26 | 1993-11-26 | Fire-resistant gap seal |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1995014828A1 true WO1995014828A1 (en) | 1995-06-01 |
Family
ID=10745751
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/GB1994/002588 WO1995014828A1 (en) | 1993-11-26 | 1994-11-25 | Gap seal |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0730695B1 (en) |
AU (1) | AU1193895A (en) |
DE (1) | DE69408338D1 (en) |
GB (1) | GB2284218B (en) |
WO (1) | WO1995014828A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6572948B1 (en) | 2000-10-31 | 2003-06-03 | 3M Innovative Properties Company | Fire stop device with rupturable element |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101275036B (en) * | 2007-03-28 | 2011-04-20 | 南京理工大学 | Preparation for polymer conductive nanometer compound material |
ATE486179T1 (en) | 2007-12-20 | 2010-11-15 | Schuh Co Gmbh Felix | SEALING DEVICE FOR A JOINT AND JOINT |
DE102010047772A1 (en) * | 2010-10-08 | 2012-04-12 | Phoenix Dichtungstechnik Gmbh | Sealing or damping profile |
US11486150B2 (en) | 2016-12-20 | 2022-11-01 | Clarkwestern Dietrich Building Systems Llc | Finishing accessory with backing strip |
USD1026252S1 (en) | 2020-11-12 | 2024-05-07 | Clarkwestern Dietrich Building Systems Llc | Control joint |
US11885138B2 (en) | 2020-11-12 | 2024-01-30 | Clarkwestern Dietrich Building Systems Llc | Control joint |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3566541A (en) * | 1969-03-06 | 1971-03-02 | Rixson Inc | Protective barrier for products of combustion |
FR2299045A1 (en) * | 1975-01-30 | 1976-08-27 | Bayer Ag | FIRE-PROOF SEALING ELEMENTS |
EP0153564A2 (en) * | 1984-02-07 | 1985-09-04 | Chemie Linz Gesellschaft m.b.H. | Arrangement for sealing openings in buildings in case of fire |
JPS6270478A (en) * | 1985-09-25 | 1987-03-31 | Sumitomo Electric Ind Ltd | Fire-retardant rubber packing |
EP0312937A1 (en) * | 1987-10-22 | 1989-04-26 | Irbit Research + Consulting AG | Sealing element |
EP0400402A1 (en) * | 1989-05-30 | 1990-12-05 | Bayer Ag | Fire protection materials |
-
1993
- 1993-11-26 GB GB9324344A patent/GB2284218B/en not_active Expired - Fee Related
-
1994
- 1994-11-25 AU AU11938/95A patent/AU1193895A/en not_active Abandoned
- 1994-11-25 EP EP95902841A patent/EP0730695B1/en not_active Expired - Lifetime
- 1994-11-25 DE DE69408338T patent/DE69408338D1/en not_active Expired - Lifetime
- 1994-11-25 WO PCT/GB1994/002588 patent/WO1995014828A1/en active IP Right Grant
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3566541A (en) * | 1969-03-06 | 1971-03-02 | Rixson Inc | Protective barrier for products of combustion |
FR2299045A1 (en) * | 1975-01-30 | 1976-08-27 | Bayer Ag | FIRE-PROOF SEALING ELEMENTS |
EP0153564A2 (en) * | 1984-02-07 | 1985-09-04 | Chemie Linz Gesellschaft m.b.H. | Arrangement for sealing openings in buildings in case of fire |
JPS6270478A (en) * | 1985-09-25 | 1987-03-31 | Sumitomo Electric Ind Ltd | Fire-retardant rubber packing |
EP0312937A1 (en) * | 1987-10-22 | 1989-04-26 | Irbit Research + Consulting AG | Sealing element |
EP0400402A1 (en) * | 1989-05-30 | 1990-12-05 | Bayer Ag | Fire protection materials |
Non-Patent Citations (1)
Title |
---|
DATABASE WPI Week 8718, Derwent World Patents Index; AN 87-127154 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6572948B1 (en) | 2000-10-31 | 2003-06-03 | 3M Innovative Properties Company | Fire stop device with rupturable element |
Also Published As
Publication number | Publication date |
---|---|
EP0730695B1 (en) | 1998-01-28 |
GB9324344D0 (en) | 1994-01-12 |
GB2284218B (en) | 1997-06-04 |
EP0730695A1 (en) | 1996-09-11 |
GB2284218A (en) | 1995-05-31 |
AU1193895A (en) | 1995-06-13 |
DE69408338D1 (en) | 1998-03-05 |
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