EP1404781A1 - Composition for molded fire stop - Google Patents
Composition for molded fire stopInfo
- Publication number
- EP1404781A1 EP1404781A1 EP02742598A EP02742598A EP1404781A1 EP 1404781 A1 EP1404781 A1 EP 1404781A1 EP 02742598 A EP02742598 A EP 02742598A EP 02742598 A EP02742598 A EP 02742598A EP 1404781 A1 EP1404781 A1 EP 1404781A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- parts
- weight
- composition
- fire stop
- fire
- 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- Withdrawn
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 23
- 230000008878 coupling Effects 0.000 claims abstract description 11
- 238000010168 coupling process Methods 0.000 claims abstract description 11
- 238000005859 coupling reaction Methods 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims abstract description 11
- 239000011347 resin Substances 0.000 claims abstract description 11
- 229920005989 resin Polymers 0.000 claims abstract description 11
- 239000004088 foaming agent Substances 0.000 claims abstract description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 8
- 239000010439 graphite Substances 0.000 claims abstract description 8
- 239000006057 Non-nutritive feed additive Substances 0.000 claims abstract description 7
- 239000000314 lubricant Substances 0.000 claims abstract description 7
- 239000003607 modifier Substances 0.000 claims abstract description 7
- 239000004014 plasticizer Substances 0.000 claims abstract description 7
- 238000000465 moulding Methods 0.000 claims abstract description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 6
- 239000003381 stabilizer Substances 0.000 claims description 5
- 238000009434 installation Methods 0.000 description 4
- 238000005192 partition Methods 0.000 description 4
- 239000004033 plastic Substances 0.000 description 3
- 239000011888 foil Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K21/00—Fireproofing materials
- C09K21/14—Macromolecular materials
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
Definitions
- the present invention relates to a composition which can be molded into a coupling for PVC and other plastic pipe to function as a fire stop for preventing the spread of fire through openings or penetrations in the walls and floors of buildings.
- Fire stop devices are used to prevent fire from spreading from one room to another through openings or apertures in a partition such as a wall, floor or ceiling through which a pipe passes .
- the purpose of the fire stop device is to close off the opening in the partition in the event of a fire.
- the fire stop device generally contains an intumescent material which expands when the temperature reaches a certain level. The expansion of the intumescent material is directed inwardly toward the pipe and crushes the pipe which is generally softened by the temperatures encountered in a fire and closes off the opening in the wall with a hard char.
- the present invention is directed to a composition which can be molded into a coupling for PVC and other plastic pipe to function as a fire stop.
- the composition comprises 100 parts by weight of a PVC resin and 20 to 100 parts by weight of an intumescent material, preferably exfoliated graphite.
- the composition may optionally contain other typical components utilized in molding operations for PVC resins such as lubricants, foaming agents, plasticizers, modifier and processing aids.
- the present invention is directed to a composition which may be used to mold couplings for use with PVC and other plastic pipe to bridge an opening in a wall and function as a fire stop for the opening.
- the composition comprises 100 parts by weight of a suitable PVC resin and 20 to 100 parts by weight of an intumescent material such as exfoliated graphite.
- an intumescent material such as exfoliated graphite.
- other optional ingredients may be added such as lubricants, foaming agents, plasticizers, modifiers, and processing aids.
- the composition is utilized to injection mold fire stop couplings and comprises 100 parts by weight of PVC resin, 1.5 to 3.0 parts by weight of one or more stabilizers, 0 to 5.0 parts by weight of one or more lubricants, 0 to 10 parts by weight of acrylic modifiers, 0 to 5.0 parts of an acrylic processing aid and up to 1.5 pai weight of a foaming agent.
- a particularly preferred composition for injection molding contains 100 parts by weight of PVC resins, 2.5 parts by weight of one or more stabilizers, 4.9 parts by weight of one or more lubricants, 8.0 parts by weight of an acrylic modifier, 3.0 parts by weight of acrylic processing aid, 25 parts by weight of exfoliated graphite and 1.2 parts by weight of a foaming agent.
- compositions according to present invention contain 100 parts by weight of PVC resins 2 to 3 parts by weight of one or more stabilizers, 25 to 100 parts by weight of exfoliated graphite, up to 1.2 parts by weight of foaming agent and up to 100 parts by weight of one or more plasticizers.
- Particularly preferred embodiments of these compositions contain 100 parts by weight of PVC resin, 2 parts by weight of one or more stabilizer, 25 to 85 parts by weight of exfoliated graphite 0.6 to 1.2 parts by weight of foaming agent and 87 parts by weight of plasticizer.
- the compositions according the present invention are prepared in a conventional manner by mixing the components of the compositions together and then molded in a suitable operation to form the fire stop couplings of the present invention.
- the fire stop couplings are utilized to bridge openings in partitions such that when the coupling is exposed to the high heat of a fire, the intumescent material such as the exfoliated graphite expands to close off the opening in the partition to prevent the spread of fire through the opening.
- the amount of foaming agent and intumescent material in the compositions can be adjusted to give the props expansion to close off the opening upon expos heat of the fire.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Fireproofing Substances (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
The present invention is directed to a composition which can be molded into a coupling to produce a fire stop. The composition comprises 100 parts by weight of a PVC resin and 20 to 100 parts by weight of an intrumescent material, preferably exfoliated graphite. The composition may optionally contain other typical components utilized in molding operations for PVC resins such as lubricants, foaming agents, plasticizers modifiers and processing aids
Description
TITLE: COMPOSITION FOR MOLDED FIRE STOP
FIELD OF THE INVENTION
The present invention relates to a composition which can be molded into a coupling for PVC and other plastic pipe to function as a fire stop for preventing the spread of fire through openings or penetrations in the walls and floors of buildings.
BACKGROUND OF THE INVENTION
Fire stop devices are used to prevent fire from spreading from one room to another through openings or apertures in a partition such as a wall, floor or ceiling through which a pipe passes . The purpose of the fire stop device is to close off the opening in the partition in the event of a fire. The fire stop device generally contains an intumescent material which expands when the temperature reaches a certain level. The expansion of the intumescent material is directed inwardly toward the pipe and crushes the pipe which is generally softened by the temperatures encountered in a fire and closes off the opening in the wall with a hard char.
A number of such fire stop devices have been proposed requiring field installation whereby for example foil lined strips of intumescent material are wrapped around a plate and then a restraining collar is wrapped around the intumescent material and secured by screws or straps.
Examples of many such fire stops are provided in amongst others U.S. patent 5,498 466, 5,953,872, 5,634,304, 5,390,465, and 5,076,309. The installation of such fire stop devices can be labor-intensive and requires that
they be properly sealed in the opening to ful. function.
SUMMARY OF THE INVENTION
The present invention is directed to a composition which can be molded into a coupling for PVC and other plastic pipe to function as a fire stop. The composition comprises 100 parts by weight of a PVC resin and 20 to 100 parts by weight of an intumescent material, preferably exfoliated graphite. The composition may optionally contain other typical components utilized in molding operations for PVC resins such as lubricants, foaming agents, plasticizers, modifier and processing aids.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
The present invention is directed to a composition which may be used to mold couplings for use with PVC and other plastic pipe to bridge an opening in a wall and function as a fire stop for the opening. The composition comprises 100 parts by weight of a suitable PVC resin and 20 to 100 parts by weight of an intumescent material such as exfoliated graphite. Depending upon the nature of the object to be molded, other optional ingredients may be added such as lubricants, foaming agents, plasticizers, modifiers, and processing aids.
In a particularly preferred embodiment the composition is utilized to injection mold fire stop couplings and comprises 100 parts by weight of PVC resin, 1.5 to 3.0 parts by weight of one or more stabilizers, 0 to 5.0 parts by weight of one or more lubricants, 0 to 10 parts
by weight of acrylic modifiers, 0 to 5.0 parts of an acrylic processing aid and up to 1.5 pai weight of a foaming agent. A particularly preferred composition for injection molding contains 100 parts by weight of PVC resins, 2.5 parts by weight of one or more stabilizers, 4.9 parts by weight of one or more lubricants, 8.0 parts by weight of an acrylic modifier, 3.0 parts by weight of acrylic processing aid, 25 parts by weight of exfoliated graphite and 1.2 parts by weight of a foaming agent.
Other preferred embodiments of compositions according to present invention contain 100 parts by weight of PVC resins 2 to 3 parts by weight of one or more stabilizers, 25 to 100 parts by weight of exfoliated graphite, up to 1.2 parts by weight of foaming agent and up to 100 parts by weight of one or more plasticizers. Particularly preferred embodiments of these compositions contain 100 parts by weight of PVC resin, 2 parts by weight of one or more stabilizer, 25 to 85 parts by weight of exfoliated graphite 0.6 to 1.2 parts by weight of foaming agent and 87 parts by weight of plasticizer.
The compositions according the present invention are prepared in a conventional manner by mixing the components of the compositions together and then molded in a suitable operation to form the fire stop couplings of the present invention. The fire stop couplings are utilized to bridge openings in partitions such that when the coupling is exposed to the high heat of a fire, the intumescent material such as the exfoliated graphite expands to close off the opening in the partition to prevent the spread of fire through the opening. The amount of foaming agent and intumescent material in the
compositions can be adjusted to give the props expansion to close off the opening upon expos heat of the fire. By providing the coupling as a fire stop it is not necessary to install additional fire stop material when a PVC pipe bridges an opening. Rather, the fire stop coupling is used to join two pieces of PVC pipe together through the opening. This makes the installation of the piping systems much easier and reduces costs associated with pipe installations.
Although various preferred embodiments of the present invention have been described herein in detail, it will be appreciated by those skilled in the art that variations may be made thereto without departing from the spirit of the invention.
Claims
1. A composition for molding into a fire stop coupling, the composition comprising 100 parts by weight of a suitable PVC resin and 20 to 100 parts by weight of an intumescent material .
2. A composition according to claim 1 wherein the composition further includes up to 5.0 parts by weight of one or more lubricants, up to 10 parts by weight of one or more modifiers, up to 5.0 parts by weight of one or more processing aids, up to 1.5 parts by weight of a foaming agent and up to 100 parts by weight of a plasticizer.
3. A composition according to claim 1 comprising 100 parts by weight PVC resins, 2.0 to 2.5 parts by weight stabilizers, 0 to 5.0 parts by weight lubricants, 0 to 8 parts by weight acrylic modifier, 0 to 3.0 parts by weight acrylic processing aid, 25 to 85 parts by weight exfoliated graphite, 0 to 1.2 parts by weight of foaming agent and 0 to 87 parts by weight of plasticizer.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2351262 CA2351262A1 (en) | 2001-06-22 | 2001-06-22 | Composition for molded fire stop |
| CA2351262 | 2001-06-22 | ||
| PCT/CA2002/000951 WO2003000824A1 (en) | 2001-06-22 | 2002-06-25 | Composition for molded fire stop |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1404781A1 true EP1404781A1 (en) | 2004-04-07 |
Family
ID=4169335
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP02742598A Withdrawn EP1404781A1 (en) | 2001-06-22 | 2002-06-25 | Composition for molded fire stop |
| EP02740171A Withdrawn EP1404780A2 (en) | 2001-06-22 | 2002-06-25 | Molded fire stop and composition therefor |
| EP02742597A Withdrawn EP1456324A1 (en) | 2001-06-22 | 2002-06-25 | Molded fire stop and composition therefor |
Family Applications After (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP02740171A Withdrawn EP1404780A2 (en) | 2001-06-22 | 2002-06-25 | Molded fire stop and composition therefor |
| EP02742597A Withdrawn EP1456324A1 (en) | 2001-06-22 | 2002-06-25 | Molded fire stop and composition therefor |
Country Status (4)
| Country | Link |
|---|---|
| EP (3) | EP1404781A1 (en) |
| AU (2) | AU2002344883A1 (en) |
| CA (1) | CA2351262A1 (en) |
| WO (3) | WO2003000824A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9086174B2 (en) | 2013-03-15 | 2015-07-21 | Securus, Inc. | Extendable sleeve for poured concrete deck |
| US9103116B2 (en) | 2013-11-05 | 2015-08-11 | Securus, Inc. | Extendable sleeve for poured concrete deck |
| US10975567B2 (en) | 2017-12-21 | 2021-04-13 | Reliance Worldwide Corporation | Extendable sleeve for poured concrete deck |
| CA2992334A1 (en) | 2018-01-19 | 2019-07-19 | Canplas Industries Ltd. | Fire stop and method of making the same |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3872788D1 (en) * | 1987-08-14 | 1992-08-20 | Wolman Gmbh Dr | MASSES FOR THE PRODUCTION OF INTUMESCENT MOLDED BODIES AND SEMI-FINISHED PRODUCTS AND THEIR USE IN BUILDING FIRE PROTECTION. |
| GB9002256D0 (en) * | 1990-02-01 | 1990-03-28 | Rendel Scient Services Limited | Fire protection |
| US5498466A (en) * | 1993-03-12 | 1996-03-12 | International Protective Coatings Corp. | Intumescent composite |
| US5942561A (en) * | 1995-03-03 | 1999-08-24 | Tosoh Corporation | Fire-retardant polymer composition |
| DE19653503A1 (en) * | 1996-12-20 | 1998-06-25 | Hilti Ag | Intumescent material |
| GB9700449D0 (en) * | 1997-01-10 | 1997-02-26 | Reddiplex Group Plc | Non-halogenated intumescent compositions |
| AT405410B (en) * | 1997-05-21 | 1999-08-25 | Chemie Linz Gmbh | INTUMESCENT SEALING AND COVER PROFILES |
| GB9810529D0 (en) * | 1998-05-15 | 1998-07-15 | P F C Surechem Limited | Intumescent composition |
| GB9926890D0 (en) * | 1999-11-12 | 2000-01-12 | P F C Surechem Limited | Intumescent composition |
-
2001
- 2001-06-22 CA CA 2351262 patent/CA2351262A1/en not_active Abandoned
-
2002
- 2002-06-25 WO PCT/CA2002/000951 patent/WO2003000824A1/en not_active Application Discontinuation
- 2002-06-25 EP EP02742598A patent/EP1404781A1/en not_active Withdrawn
- 2002-06-25 EP EP02740171A patent/EP1404780A2/en not_active Withdrawn
- 2002-06-25 WO PCT/CA2002/000950 patent/WO2004041967A1/en not_active Application Discontinuation
- 2002-06-25 EP EP02742597A patent/EP1456324A1/en not_active Withdrawn
- 2002-06-25 WO PCT/CA2002/000949 patent/WO2003000823A1/en not_active Application Discontinuation
- 2002-06-25 AU AU2002344883A patent/AU2002344883A1/en not_active Abandoned
- 2002-06-25 AU AU2002315605A patent/AU2002315605A1/en not_active Abandoned
Non-Patent Citations (1)
| Title |
|---|
| See references of WO03000824A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| AU2002315605A1 (en) | 2003-01-08 |
| AU2002344883A1 (en) | 2004-06-07 |
| WO2003000824A1 (en) | 2003-01-03 |
| WO2003000823A8 (en) | 2003-09-25 |
| EP1404780A2 (en) | 2004-04-07 |
| CA2351262A1 (en) | 2002-12-22 |
| WO2004041967A1 (en) | 2004-05-21 |
| EP1456324A1 (en) | 2004-09-15 |
| WO2003000823A1 (en) | 2003-01-03 |
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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: 20040121 |
|
| 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 TR |
|
| AX | Request for extension of the european patent |
Extension state: AL LT LV MK RO SI |
|
| 17Q | First examination report despatched |
Effective date: 20070322 |
|
| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: ROYAL GROUP, INC. |
|
| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: COBRI TECHNOLOGIES, INC. |
|
| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: COLUMBIA-MBF, INC. |
|
| 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: 20120103 |