CA1061292A - Cartridge of self-setting composition - Google Patents
Cartridge of self-setting compositionInfo
- Publication number
- CA1061292A CA1061292A CA249,059A CA249059A CA1061292A CA 1061292 A CA1061292 A CA 1061292A CA 249059 A CA249059 A CA 249059A CA 1061292 A CA1061292 A CA 1061292A
- Authority
- CA
- Canada
- Prior art keywords
- tube
- depression
- cartridge
- filled
- self
- 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.)
- Expired
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 14
- 238000007789 sealing Methods 0.000 claims description 12
- 230000002452 interceptive effect Effects 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 5
- 239000000853 adhesive Substances 0.000 claims description 2
- 230000001070 adhesive effect Effects 0.000 claims description 2
- 230000000994 depressogenic effect Effects 0.000 claims description 2
- 239000000306 component Substances 0.000 claims 5
- 230000004888 barrier function Effects 0.000 claims 1
- 230000003993 interaction Effects 0.000 claims 1
- 239000004848 polyfunctional curative Substances 0.000 description 9
- 239000000945 filler Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
- 239000002390 adhesive tape Substances 0.000 description 3
- 239000004342 Benzoyl peroxide Substances 0.000 description 2
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 description 2
- 235000019400 benzoyl peroxide Nutrition 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 150000002978 peroxides Chemical class 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 229920006305 unsaturated polyester Polymers 0.000 description 2
- 229920006337 unsaturated polyester resin Polymers 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000881 depressing effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 229920002457 flexible plastic Polymers 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 229920005573 silicon-containing polymer Polymers 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Landscapes
- Adhesives Or Adhesive Processes (AREA)
Abstract
CARTRIDGE OF SELF-SETTING COMPOSITION
ABSTRACT
the following disclosure contains a correct and full description of the invention and of the best mode known to the inventor of taking advantage of the same.
ABSTRACT
the following disclosure contains a correct and full description of the invention and of the best mode known to the inventor of taking advantage of the same.
Description
SPECIFICATION
The invention concerns generally improved self-setting mix cartridges and the method of making said cartridges.
The invention relates to a cartridge containing a self-setting composition, and preferably for use in securing a fixing element in a substrate, for example an anchor bolt in a mine wall or roof. There have been numerous proposals to provide cartridges containing preportioned quantities of the components of a self-setting mix packaged in such a way that they do not interact until the cartridge is destroyed by the element to be fixed. Two such ; cartridges have been disclosed in Canadian Application Serial No.
237,393, filed October 7, 1975 and Canadian Application Serial No.
174,364 filed June 19, 1973.
According to the invention, a cartridge containing the interactive components of a self-setting composition comprises a tube of flexible plastics material, the tube being sealed at each end and being substantially filled with a first interactive component, the wall of the tube being depressed inwardly to define a depression in the filled tube, the depression extending longitudinally of the cartridge, a second interactive component being contained within the depression sealing means sealing the mouth of the depression.
Preferably the depression is formed by depressing one por-tion of the wall of the flexible tube inwardly towards the facing wall portion beyond the center of the tube so ensuring that when the cartridge is destroyed by rotating a fixing element through the cartridge sufficient of both components is intermixed to form a secure anchorage.
Most preferably, one component, the major one, comprises a paste of a filler and a hardenable resin such as an unsaturated polyester resin, and is located within the tube, and the second component compri~es a paste of a filler and a hardener
The invention concerns generally improved self-setting mix cartridges and the method of making said cartridges.
The invention relates to a cartridge containing a self-setting composition, and preferably for use in securing a fixing element in a substrate, for example an anchor bolt in a mine wall or roof. There have been numerous proposals to provide cartridges containing preportioned quantities of the components of a self-setting mix packaged in such a way that they do not interact until the cartridge is destroyed by the element to be fixed. Two such ; cartridges have been disclosed in Canadian Application Serial No.
237,393, filed October 7, 1975 and Canadian Application Serial No.
174,364 filed June 19, 1973.
According to the invention, a cartridge containing the interactive components of a self-setting composition comprises a tube of flexible plastics material, the tube being sealed at each end and being substantially filled with a first interactive component, the wall of the tube being depressed inwardly to define a depression in the filled tube, the depression extending longitudinally of the cartridge, a second interactive component being contained within the depression sealing means sealing the mouth of the depression.
Preferably the depression is formed by depressing one por-tion of the wall of the flexible tube inwardly towards the facing wall portion beyond the center of the tube so ensuring that when the cartridge is destroyed by rotating a fixing element through the cartridge sufficient of both components is intermixed to form a secure anchorage.
Most preferably, one component, the major one, comprises a paste of a filler and a hardenable resin such as an unsaturated polyester resin, and is located within the tube, and the second component compri~es a paste of a filler and a hardener
- 2 -.
. ; .
~; :
.. ~ ' ' ' for the resin, and is contained within the depression. In the case of an unsaturated polyester resin the hardener will typically include a peroxide such as benzoyl peroxide which can be hazardous and in this case the mouth of the depression must be sealed.
In one embodiment of the invention the mouth of the depression is sealed by an overlying longitudinal strip of adhesive tape which is adhered to the exterior surface of the tube on each side of the depression. Preferably the adhesion is done by heat sealing.
In another embodiment the edge portions of the tube wall defining the sides of the depression are joined together by heat sealing to seal the mouth of the depression, so saving - the need for a sealing tape or flap.
In another arrangement the tube is formed by rolling - up a film of plastics material and heat sealing one longer side portion of the film adjacent the free edge of the other side ; portion leaving a margin which may be a flap to be sealed across the mouth of the depression.
A cartridge of the invention may be made industrially in many ways. In one preferred way of making cartridges on a --;
continuous basis, the tube is filled with the major component following which the depression is formed in the tube and the mouth of the depression is sealed. In another method the depression is first formed and filled with its component and then sealed, following which the tube is filled with the major component. `
These actions may be done to continuous tube from which is then separated individual cartridges.
Materials which can be used as the films and the interactive components are as indicated in the above mentioned patent and patent application.
One embodiment of cartridge of the invention and a .
`
method of manufacture is shown in the accompanying diagrammatic drawings in which:
Fig. 1 is a longitudinally median sectional view of a cartridge in accordance with one embodiment oE this invention;
Fig. 2 is a cross sectional view taken along line 2-2 of Fig. l;
Fig. 3 is a longitudinal vi~w in section showing a stage of manufacture of the cartridge on a continuous basis;
Fig. 4 is a cross sectional view of another cartridge of this invention, and ~- Fig. 5 is a cross sectional view of yet another cartridge.
Referring now to the various figures of the drawing wherein like reference numerals refer to like parts, th~re is shown in Fig.
1 an improved cartridge 20 of a self-setting mix in accordance with this invention.
, The cartridge 20 comprises a tube 22 of a rupturable plastics film, preferably a saturated polyester, sealed at end by means of a metal clip 24. The body of the tube is filled to generally circular cross sectional shape with a mixture 26 of unsaturated polyester, filler and accelerator. At its upper side, the wall of the filled tube 22 is pushed inwardly to define a depression 2~
which extends from the upper side 30 (Fig. 2) of the tube substan-tially into the body thereof. The depression is filled with a hardener mixture 32 of a peroxide (such as benzoyl peroxide) and filler. A length of adhesive tape 34 on the bottom side of which is a coating of silicone polymer adhesive (not shown), extends over the upper surface 30 of the cartridge tube and is secured to portions of the tube contiguous with the depression to seal the mouth of the depression 28 and at each end of the cartridge the tape is trapped in the metal clip 24. The silicone of the tape is inert .
p, . ~, .
. ~ . , . - . . ~, , ..
. ; .
~; :
.. ~ ' ' ' for the resin, and is contained within the depression. In the case of an unsaturated polyester resin the hardener will typically include a peroxide such as benzoyl peroxide which can be hazardous and in this case the mouth of the depression must be sealed.
In one embodiment of the invention the mouth of the depression is sealed by an overlying longitudinal strip of adhesive tape which is adhered to the exterior surface of the tube on each side of the depression. Preferably the adhesion is done by heat sealing.
In another embodiment the edge portions of the tube wall defining the sides of the depression are joined together by heat sealing to seal the mouth of the depression, so saving - the need for a sealing tape or flap.
In another arrangement the tube is formed by rolling - up a film of plastics material and heat sealing one longer side portion of the film adjacent the free edge of the other side ; portion leaving a margin which may be a flap to be sealed across the mouth of the depression.
A cartridge of the invention may be made industrially in many ways. In one preferred way of making cartridges on a --;
continuous basis, the tube is filled with the major component following which the depression is formed in the tube and the mouth of the depression is sealed. In another method the depression is first formed and filled with its component and then sealed, following which the tube is filled with the major component. `
These actions may be done to continuous tube from which is then separated individual cartridges.
Materials which can be used as the films and the interactive components are as indicated in the above mentioned patent and patent application.
One embodiment of cartridge of the invention and a .
`
method of manufacture is shown in the accompanying diagrammatic drawings in which:
Fig. 1 is a longitudinally median sectional view of a cartridge in accordance with one embodiment oE this invention;
Fig. 2 is a cross sectional view taken along line 2-2 of Fig. l;
Fig. 3 is a longitudinal vi~w in section showing a stage of manufacture of the cartridge on a continuous basis;
Fig. 4 is a cross sectional view of another cartridge of this invention, and ~- Fig. 5 is a cross sectional view of yet another cartridge.
Referring now to the various figures of the drawing wherein like reference numerals refer to like parts, th~re is shown in Fig.
1 an improved cartridge 20 of a self-setting mix in accordance with this invention.
, The cartridge 20 comprises a tube 22 of a rupturable plastics film, preferably a saturated polyester, sealed at end by means of a metal clip 24. The body of the tube is filled to generally circular cross sectional shape with a mixture 26 of unsaturated polyester, filler and accelerator. At its upper side, the wall of the filled tube 22 is pushed inwardly to define a depression 2~
which extends from the upper side 30 (Fig. 2) of the tube substan-tially into the body thereof. The depression is filled with a hardener mixture 32 of a peroxide (such as benzoyl peroxide) and filler. A length of adhesive tape 34 on the bottom side of which is a coating of silicone polymer adhesive (not shown), extends over the upper surface 30 of the cartridge tube and is secured to portions of the tube contiguous with the depression to seal the mouth of the depression 28 and at each end of the cartridge the tape is trapped in the metal clip 24. The silicone of the tape is inert .
p, . ~, .
. ~ . , . - . . ~, , ..
3~
`
to the hardener mixture.
A method of making a cartridge according to Figures ;
, :
1 and 2 from continuous lay flap plastics tube is shown dia-grammactically in Fig. 3. The tube is filled with an unsaturated polyester composition from an extrusion machine (not shown).
The filled tube 22 is then passed under a shoe 36 having at its toe 38 an opening 40 through which is passed the hardener paste 32. Immediately in front of the toe 38 is a roll 42 of adhesive tape 34. The tube is continuously passed below the shoe and roll. The shoe makes the depression 28 in the i upper side of the filled tube. The hardener paste 32 is fed ~ into the depression so formed and tape is wound off the strip - 42 immediately and covers the filled depression. At further stations and in known manner the tube is voided and clips 24 are applied to close off individual cartridge lengths following ~`~
which the leading cartridge length is parted from the parent : tube to define an individual cartridge.
In the embodiment of Fig. 4 edge portions 44 of the tube 22 contiguous with the depression 28 on the sides thereof ;
are joined together at joint 46 by heat sealing to seal the mouth of the depression 28 and to enclose the hardener paste 32 therein. !'' In the embodiment shown in Fig. 5 the tube 22 is ` .
formed by rolling up a strip of plastics material having a pair of side edge portions 48 and 50 to form the tube 22. The tube is closed by heat sealing side edge 48 to the free edge of the other side portion 50 but leaving a margin 52 which defines a flap. The flap 52 is disposed over the depression 28 having the hardener paste 32 therein. The free edge 50 of the flap is then heat sealed to the tube to seal the hardener paste in place.
Without further elaboration, the foregoing will so fully illustrate my invention, that other may, by applying ..
., :
'~ .
... . .
:
," ;~ 9 :, current or future knowledge, readily adapt the same for use under various conditions of service.
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to the hardener mixture.
A method of making a cartridge according to Figures ;
, :
1 and 2 from continuous lay flap plastics tube is shown dia-grammactically in Fig. 3. The tube is filled with an unsaturated polyester composition from an extrusion machine (not shown).
The filled tube 22 is then passed under a shoe 36 having at its toe 38 an opening 40 through which is passed the hardener paste 32. Immediately in front of the toe 38 is a roll 42 of adhesive tape 34. The tube is continuously passed below the shoe and roll. The shoe makes the depression 28 in the i upper side of the filled tube. The hardener paste 32 is fed ~ into the depression so formed and tape is wound off the strip - 42 immediately and covers the filled depression. At further stations and in known manner the tube is voided and clips 24 are applied to close off individual cartridge lengths following ~`~
which the leading cartridge length is parted from the parent : tube to define an individual cartridge.
In the embodiment of Fig. 4 edge portions 44 of the tube 22 contiguous with the depression 28 on the sides thereof ;
are joined together at joint 46 by heat sealing to seal the mouth of the depression 28 and to enclose the hardener paste 32 therein. !'' In the embodiment shown in Fig. 5 the tube 22 is ` .
formed by rolling up a strip of plastics material having a pair of side edge portions 48 and 50 to form the tube 22. The tube is closed by heat sealing side edge 48 to the free edge of the other side portion 50 but leaving a margin 52 which defines a flap. The flap 52 is disposed over the depression 28 having the hardener paste 32 therein. The free edge 50 of the flap is then heat sealed to the tube to seal the hardener paste in place.
Without further elaboration, the foregoing will so fully illustrate my invention, that other may, by applying ..
., :
'~ .
... . .
:
," ;~ 9 :, current or future knowledge, readily adapt the same for use under various conditions of service.
, ", . .
,- -.;
,~ 10 , .
., ; .
., ~ .
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;^ . .
: ~., '-, . . ^
, . . .
. :
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~ .- , .. . - . ~ . ~
Claims (4)
1. A cartridge of a two component, interactive, self-setting composition, comprising a tube of a flexible, rupturable material sealed at each end and having a first interactive com-ponent of said composition sealed therein, the wall of said tube being depressed inwardly toward the facing wall portion beyond the center of the tube to form a depression in the filled tube, said depression extending substantially toward each end of said tube and being filled with the second interactive com-ponent of said composition, said filled depression extending continuously from the outer surface of said tube past the center of said tube, with the portion of said tubing forming said depres-sion serving as a barrier wall precluding the interaction of said components and sealing means sealing said second component within said depression.
2. The cartridge of claim 1 wherein the sealing means comprises a strip of tape disposed over said filled depression and secured to the tube at portions thereof contiguous with said depression.
3. The cartridge of claim 2 wherein said tape includes a heat activated adhesive.
4. The cartridge of claim 1 wherein said sealing means comprises a joint formed between portions of said tube con-tiguous with the sides of the depression.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA249,059A CA1061292A (en) | 1976-03-29 | 1976-03-29 | Cartridge of self-setting composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA249,059A CA1061292A (en) | 1976-03-29 | 1976-03-29 | Cartridge of self-setting composition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1061292A true CA1061292A (en) | 1979-08-28 |
Family
ID=4105576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA249,059A Expired CA1061292A (en) | 1976-03-29 | 1976-03-29 | Cartridge of self-setting composition |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1061292A (en) |
-
1976
- 1976-03-29 CA CA249,059A patent/CA1061292A/en not_active Expired
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