US3272604A

US3272604A - Re-ignitible match

Info

Publication number: US3272604A
Application number: US512751A
Authority: US
Inventors: Tigrett John Burton; Voorhis F Wigal
Original assignee: TIGRETT
Current assignee: TIGRETT
Priority date: 1965-12-09
Filing date: 1965-12-09
Publication date: 1966-09-13
Anticipated expiration: 1983-09-13

Description

Sept. 13, 1966 J. B. TIGRETT ETAL RE-IGNITIBLE MATCH Filed Dec. 9, 1965 FIGS FIG.4

FIGZ

INVENTORS JOHN BURTON TIGRETT AND Voom-ns F. WIGAL BY 02% w KM ATTORNEY United States Patent 3,272,604 REJGNITIBLE MATCH .Iolin Burton Tigrett and Voorhis F. Wigal, both of Jackson, Tenn; said Wigai assignor to said Tigrett Filed Dec. a, 1965, Ser. No. 512,751 Claims. (Cl. 4442) This invention relates to ignitible match compositions and, more particularly, to a match which is adapted for repeated ignition and extinguishment.

This application is a continuation-impart of co-pending applications Ser. Nos. 166,051, 166,052, and 166,053, each having been filed Jan. 15, 1962, which are now abandoned.

Heretofore, various ettorts have been made to develop a re-ignitible match which may be lit and put out innumerable times over an especially relatively long life, with even burning during combustion. However, up to the present time, all such efforts have failed, and for one primary reason, that being the lack of such match compositions to retain incorporated combustion rate modifying agents against inadvertent escape. The necessity of including agents having a low-burning velocity in such match compositions has long been appreciated, as the same conduce to ease of ignition and extinguishment whereby the latter may be easily accomplished by blowing ones breath on the ignited match or by waving same in the air, as well as conducin-g to the evenness of burn- With a steady loss of such agents through undesired escape, the life of the match is critically reduced with increasing difiiculty, during usage, in the striking, and extinguishing, and with uneven burning. Thus, the retention of such combustion rate modifiers is critical for the effective operation of a re-ignitible match and to provide the expected longevity of the same.

In the actual preparation and production of re-ignitible matches heretofore certain solvents have been customarily utilized for the particular binding agent used, such as cellulose nitrate, as well as for assisting in the general dispersing of the composition ingredients, and accordingly, it was necessary to allow a relatively extensive drying period for such compositions during which the solvent must migrate to the surface and evaporate.

By such action the resultant plastic mass is riddled with a multiplicity of microscopic interstices representing channels, as it were, through which the solvent migrated for ultimate evaporation. These tiny pores provide ducts along which the combustion rate modifiers slowly escape and thus the match is steadily deprived of this necessary ingredient so that its effective life is being continuously reduced. In addition to the steady diminution in the eflectiveness of the match, the unauthorized loss of the combustion rate modifiers into the surrounding atmosphere may create a health hazard, since many are poisonous, while others, though not poisonous, have an objectionable odor, which is very displeasing. Furthermore, with the loss of such low-burning velocity agents a match upon ignition will burn with a violent rocket-like action until consumed, being thus creative of a definite hazard to the user as well as to the surroundings.

Therefore, is it an object of the present invention to provide a re-ignitible match composition adapted to form a homogeneous solid mass wherein combustion rate controlling agents are intimately and reliably retained against untimely escape to render the match capable of constant ignition, burning, and extinguishment properties over a relatively extensive life.

It is another object of the present invention to provide a re-ignitible match comprising a combustible mass throughout which the active ingredients are evenly dis- "ice persed and in the production of which the heretofore accepted lengthy drying-out process is obviated.

It is a further object of the present invention to provide a match capable of repeated ignition incorporating as a dispersant a readily combustible, liquid monomeric material, capable of polymerizing in situ into solid form for endowing the resultant mass with a density substantially impenetrable to normally potentially escapable combustion rate modifying agents, whereby the same are retained against premature loss.

It is an additional object of the present invention to provide a re-i-gnitible match comprising a core, or relatively enriched axial wick, formed of a combustible nonporous mass wherein incorporated combustion rate con trolling agents are retained against premature escape, which core is embedded within a combustible body devoid of oxidizing agents, there being a sheath-forming member applied upon said combustible body.

It is a still further object of the present invention to provide a re-ignitible match comprising a combustible non-porous mass wherein incorporated combustion rate controlling agents are reliably retained against premature escape and with a combustible sheet-forming member intimately engaged to the match composition and progressing throughout the match body, which sheet-forming member conduces to a strong physical construction of the match.

It is a still further object of the present invention to provide a method for economically and effectively producing re-ignitible matches of the types described as having substantially non-porous character.

Other objects and details of the invention will be apparent from the following description, when read in connection with the accompanying drawing, wherein FIGURE 1 is a top plan view of a match constructed in accordance with and embodying the present invention.

FIGURE 2 is a vertical transverse sectional view taken on the line 22 of FIGURE 1.

FIGURE 3 is an elevational view of another form of reignitible match constructed in accordance with and embodying the present invention.

FIGURE 4 is a horizontal transverse sectional view ftaken on the line 44 of FIGURE 3.

FIGURE 5 is a front view of a further form of reignitible match constructed in accordance with and embodying the present invention.

FIGURE 6 is a transverse sectional view taken on the line 66 of FIGURE 5.

FIGURE 7 is a vertical sectional view demonstrating the match composition as applied upon the sheet-forming member prior .to the match formation illustrated in FIGURE 6.

In essence, the present invention contemplates the development of a combustible mixture for forming a homogeneous hard mass adapted for constituting the body of a re-ignitible match, which mixture in addition to including certain Well-known match ingredients, being an oxidizing agent, a combustion supporting agent, a combustion rate modifier, and a binder, also contains a normally liquid monomeric agent which serves as a dispersant for the various ingredients and is capable of polymerizing in situ for intimately embedding within the formed non-porous mass the formulation ingredients whereby escape of the combustion rate modifying agents is substantially inhibited. Thus, this invention does not comprehend the utilization, in preparation, of solvents which must evaporate during match formation.

In general, the re-ignitible match of the present invention includes in intimate admixture, an oxidizing agent, or an oxygen supplying substance, which may be any one heretofore well-known in this art, such as, for instance, potassium chlorate, as well as other chlorates and per chlorates, as well as nitrates, such as otassium nitrate, le d nitrate, etc, and salts of chromic acid, as bichromates, etc. Also included in the admixture as a relatively major component thereof is a combustion rate modifying agent, or what might be considered an agent of relatively low burning velocity for controlling the rate of combustion of oxygen from the oxidizing agent or so-called oxygen supplying substance and being adapted to burn without leaving a residue. Such combustion-controlling agents include polymers of aldehydes, such as metaldehyde, .and trioxane, as well as derivatives of ammonia, such as, hexarnethylene tetramine, and the like. It will be recognized that compounds of this type have a cooling effect so that despite the relatively high content of the oxidizing agent, the burning match may be extinguished readily as by blowing ones breath thereon or by waving same through the air. Additionally, such combustion rate controlling agents conduce to ready ignition of the mat-ch upon being struck on a suitable surface and promote even burning.

The composition of the present invention also comprises a combustion supporting agent, or What might be considered an oxygen release catalyst, such as, particularly, manganese dioxide, and others, which are equally known in the art. With the foregoing ingredients there is also incorporated a binder which may be any suitable combustible material such as, cellulose nitrate, which has been widely used heretofore. Cellulose acetate is also a compound apt for use as a binder in the present instance. But, it must be particularly noted that with the present invention the binder is not dissolved in a solvent, such as has bee-n the practice to the present time.

There also may be included in the composition relatively small amounts of pentaerythritol and ferric sulfate which conduce to more even burning, being agents for preventing irregular combustion characteristics.

Serving as a dispersant for the ingredients of the match to be formed is a liquid monomeric agent which will polymerize in situ, by catalytic action, to form a solid, dense resin providing a homogeneous mass within which the said ingredients are dispersed. The solid polymer so formed will embed each particle of the formulation and thereby reliably retain the same against premature escape or loss. Among the monomers suitable for such purpose are monomethyl methacrylate, styrene, .acrylonitrile, methyl-acrylate, and the like. The polymers so formed will readily burn so that there is no interference by the resin with the desired combustible properties of the match. As will be more apparent below, it is to be especially noted that the match of the present invention does not require the utilization of a solvent, so that the resultant hardened mass is devoid of the interstices or lacunae which have been heretofore developed in match bodies produced from ingredients including a solvent. Thus, the match of the present invention does not provide the openings which conduce to the escape of the combustion controlling agent, which latter is thus locked tightly within the mass.

Referring now by reference characters to the drawings which illustrate the preferred embodiments of the present invention, A indicates generally a homogeneous match body which is hard, being of relatively high density comprising uniformly dispersed ingredients to be described in detail below, and which body is covered with a thin film as indicated at B, such as of regenerated cellulose, cellulose acetate, or such other film material as will prevent the fiame from burning faster on the outer surface of the body than at the center. Films or coating materials for this general purpose have been well known in the art, such as composed of polyvinyl acetate, polyvinyl chloride, etc.

Match bodies A formed in accordance with the present invention are comprised of a 'geenral formula as follows:

Material: Parts by weight (approx.) Oxidizing agent 7 Combustion rate modifying agent 8-10 Combustion supporting agent 1.5-2 Liquid monomer 4.4-5.5 Binder 1.1 Monomer catalyst, and even-burning producing agents 2.15-3.132

Thus the foregoing may be utilized for preparing matches having the desired characteristics as described herein.

As an example only, the following formulation may be used for the production of a match body in accordance with the present invention (the ingredients being set forth in correspondence to the above general formula):

Material: Parts by weight (approx) Potassium chlorate 7 Metaldehyde l0 Manganese dioxide 2 Mono-Methyl methacrylate 4.5 Cellulose nitrate 1.1

Benzoyl peroxide (catalyst for the acrylic monomer) .132 Pentaerythritol 2.00 Ferric sulfate 1.00

Using the foregoing formulation for illustraitve purposes only, the procedure for forming a match in accordance with the present invention is as follows:

The cellulose nitrate is put into solution in the liquid monomer, or mono-methyl methacrylate in this instance, and then there is added the benzoyl peroxide which serves as a catalyst for promoting the polymerization of the monomer. With the cellulose nitrate thus dissolved, the other ingredients, being solid materials in finely-ground state, that is, the potassium chlorate, metaldehyde, manganese dioxide, pentaerythritol, and ferric sulfate, are then mixed into the solution which becomes increasingly plastic. The resulting mass may then be extruded through a suitable die for presentation in rod form. The rods so formed are then wrapped in an impervious film such as, of polyethylene, which prevents evaporation of the monomer during curing, which is accomplished by conventional procedures. The polymerization may be accelerated by well-known, so-called noncatalytic means, including the use of thermal or photochemical energy sources.

Upon curing, the impervious film will be removed and the rods may then .be cut in sections of pre-determined length to constitute the formed match bodies, such as indicated at A in the drawing.

The thin film B as above described is then applied upon the match bodies.

It is to be noted that by virtue of the homogeneous character of match body A and the stable character thereof through the maximum retentivity obtained by the use of the monomer, the resultant match will be constant in its operative properties over a relatively extensive life. Thus, the match of the present invention will ignite and be extinguishable with equal ease whether during its first usage or during any usage long subsequent thereof; and throughout its long life will burn with an even flame. During non-usage there will not be undesired escape of the combustion rate modifying agent with attendant odoriferousness, hazard to health, and danger through relatively violent explosiveness. Matches constructed in accordance with the foregoing are endowed with the reliable operational qualities which have been, heretofore, fruitlessly sought by previous workers in this field. By virture of the intimate retention of the combustion rate modifying agent as provided in the present invention, an

ultimate remaining increment of a match constructed in accordance with the present invention will ignite, burn and be extinguishable in the same manner as the initial, fully-formed match.

As further examples of the basic formulation for the production of a match body in accordance with the present invention by incorporating various of the other abovementioned monomers, the following may be noted, all of which have substantiated in practice the efficacy of this invention:

Ethyl Methacrylate Monomer- Iso Butyl Methaerylate Monomer. Styrene Monomer Vinyl Acetate Monomer. Vinyl Chloride Monomer Another form of the present invention contemplates a reignitible match as indicated at C incorporating a central axial core 1 surrounded by a combustible body 2, which latter in turn is encircled or encased in a sheath member 3.

The core mixture which is closely related in nature to match body A above described comprises in intimate admixture an oxidizing agent, such as, for instance, potassium chlorate, as well as other chlorates and perchlorates, nitrates, bichromates, etc.; a combustion rate modifying agent including polymers of aldehydes, such as, metaldehyde, and trioxane, as well as derivatives of ammonia, such as, hexamethylene tetramine, and the like; a combustion supporting agent such as, for instance, manganese dioxide; and a binder, as cellulose nitrate or cellulose acetate. The foregoing basic ingredients are, as aforesaid, all well-known in the art of matches. However, it is to be particularly noted, as will be more evident hereinbelow, the binder is not dissolved in a solvent as has been the practice heretofore. The combustible mixture also includes, as a dispersant, a liquid monomeric agent which will polymerize in situ, by catalytic action, for forming a solid, homogeneous, non-porous mass, all as set forth above with respect to match body A.

The match core of the present invention may also include small amounts of agents conducing to more even burning such as, for instance, pentaerythritol and ferric sulfate. Combustible mixtures for re-ignitible match cores formed in accordance with the present invention have had the following general formula:

Material: Parts by weight (approx) Oxidizing agent 7 Combustion rate modifying agent 5 Combustion supporting agent 2 Liquid monomer 4.8 Binder 1.2 Monomer catalyst, and even-burning producing agents 2.144

As an example only, the following formulation may be used for the production of a core for a re-ignitible match in accordance with the foregoing formula (with the ingredients being set forth in correspondence to the above formula).

6 Material: Parts by weight (approx.) Potassium chlorate 7 Metaldehyde 5 Manganese dioxide 2 Mono-Methyl methacrylate 4.8-5.5 Cellulose nitrate 1.2

Benzoyl peroxide (catalyst for the acrylic monomer) .144 Pentaerythritol 1.00 Ferric sulfate Using the foregoing formula for illustrative purposes only, the procedure for intimately admixing the ingredients thereof is as follows:

The cellulose nitrate is put into solution in the liquid monomer, or mono-methyl methacrylate in this instance, and then there is added the benzoyl peroxide which serves as a catalyst for promoting the polymerization of the monomer. With the cellulose nitrate thus dissolved, the other ingredients, being solid materials in finely ground state, that is, the potassium chlorate, metaldehyde, manganese dioxide, pentaerythritol, and ferric sulfate, are then mixed into the solution which becomes increasingly plastic.

It is evident from the foregoing, the formulation for the aforesaid match cores is substantially the same as that for match body A hereinabove described, so that the efficiency and reliability of operation of the liquid monomeric agents are as established hereinabove.

As will be shown hereinbelow, core 1 formed in accordance with the foregoing is adapted to being surrounded by a combustible body 2 which may be devoid of oxidizing agents and, hence, being less enriched than the core, will be less adapted for ease of ignition but will provide steady, even-burning characteristics. Combustible body 2 will be formed substantially of a combustion rate modifying agent, such as for example, metaldehyde, which will be retained against escape by a liquid monomeric agent of the type utilized in the formation of the core. Heretofore, match constructions utilizing an encircling combustile body to a central wickform portion, have been composed of a low-burning velocity agent and a binder, with the result that such agents have continuously escaped and thus rendered the body inadequate for its designed purpose.

Combustible body 2 formed in accordance with the present invention will have the following general formula:

Material: Parts by weight (approx) Combustion rate modifying agent 10 Liquid monomer 3 Binder 1.2 Monomer catalyst, and even-burning producing agents 2.09

As an example only, the following formulation may be used for the production of a combustible body for a re-ignitible match in accordance with the foregoing formula (with the ingredients being set forth in correspondence to the above formula).

Material Parts by weight (approx) Met-aldehyde 10 Cellulose nitrate 1.2

Mono-Methylmethacrylate monomer 3.0

Benzoyl peroxide (catalyst) .09 Boric acid 1.00

Trioxane 1.00

Using the foregoing formula for illustration purposes only, since the mono-methylmethacrylate may be readily replaced by any of the other aforesaid monomeric agents without in any way modifying the characteristics of the combustible body 2, the procedure for intimately admixing the combustible body ingredients is as follows:

The cellulose nitrate is put into a solution in the liquid monomer, or mono-methylmethacrylate in this instance, and then there is added the benzoyl peroxide which serves as a catalyst for promoting the polymerization of the monomer. With the cellulose nitrate thus dissolved, the boric acid and the trioxane are then mixed into the solu tion which becomes increasingly plastic.

The now plastic core 1 and combustible body 2 are then extruded by a compound extruder so that the combustible body is disposed about the central core, Subsequent to the extruding operation the now integrated core and body are then subject to conditions conductive to curing which may be accomplished by conventional procedures during which the erstwhile monomeric material in both the core and the combustible body will polymerize into a resin of high density and hardness. The polymerization may be accelerated by well-known, so-called non-catalytic means, including the use of thermal or photochemical energy sources. However, it is requisite that during the curing operation the monomer be prevented from escaping. Various expedients might be utilized to inhibit such escape such as, for example, the application of an impervious film, such as polyethylene, about the combustible body, which film prevents the evaporation of the monomer or, if desired, the curing operation may be undertaken in an autoclave under air pressure, or under inert gas pressure so as to repress the vapor pressure of the monomer to prevent escape.

After curing, the impervious film, if used, is removed and the now hardened rodlike sections are permanently covered with thin film 3, as of re-generated cellulose, cellulose acetate, or such other film material as will prevent the flame from burning faster on the outer surface of the body than at the center. Films or coating materials for this general purpose have been well-known in the art, such as polyvinyl acetate, polyvinyl chloride, etc. The now sheath-covered rods may be cut into sections of predetermined length to constitute the formed match bodies, there being preferably a slight taper at one end so as to expose the core.

In view of the foregoing it will be noted that the core, indicated as 1 in the drawing, incorporates oxidizing agents whereas the combustible body indicated at 2 is devoid of such agents. Thus, core 1 is adapted for ease of ignition and extinguishment with relation to the combustible body where as the latter being comprised substantially of combustion rate modifying agents conduces to steady, slow-burning of the match A when ignited. The boric acid and trioxane of the combustible body 2 provide flame modifying properties as well as desired plasticity.

It is to be noted that the core and the combustible body are both of a homogeneous character and being adapted for maximum retentivity by incorporation of the now polymerized monomer whereby the resultant match will be constant in its operative properties over a relatively extensive life.

Referring now to FIGURES 5, 6, and 7, D generally indicates a re-ignitible match which embodies the present invention, incorporating a combustible mixture as indicated at 4, which is applied upon a film or sheet-forming member 5, which latter is then rolled upon itself into a body of predetermined desired thickness. In its crosssection, which is preferably annular, the body will thus be composed of alternating, continuous layers of the sheet-forming member 5 and said combustible mixture 4, which layers are in general spiral form proceeding from the body center along an ever-increasing radius.

Combustible mixture 4 is comprised of the same ingredients and compounded in the same manner as the combustible core 1 herein above described. However, in the production of the same, the plastic mass within which the ingredients are evenly dispersed, is not placed in an extruder as with core 2, but is spread onto, or otherwise applied, in a relatively thin layer upon a section of film 5, such as, a polymer of ethylene, but which may be of other polyolefins, such as, polypropylene, polybutylene, or combinations thereof; as well as of polystyrene, or of a polyvinyl alcohol. Such films desirably have a thickness of approximately .001 inch, and are combustible, being a relatively high molecular weight, wax-like material. The applied layer of the combustible material will, preferably, have a thickness of about .01 inch; said film being indicated at 5 in the drawings, and the applied layer of combustible material being designated 4. After application of the mixture 4 upon film 5, the latter is then immediately rolled upon itself into a tight roll to form an elongated body of annular cross-section wherein the said film and combustible mixture provide alternating layers along companion spirals (FIGURE 6). The rolled body is then subjected to conditions conductive to curing which latter may be accomplished by conventional procedures. During curing, the erstwhile monomeric material will polymerize into a resin of high density and hardness and will, additionally, serve to unite the film and mixture into an integrated unit. The polymerization may be accelerated by well-known, so-called noncatalytic means, including the use of thermal or photochemical enerszv sources.

After curing the now hard elongated body may be severed into sections of predetermined length which will constitute the finished match body, as indicated broadly at D in FIGURE 5.

The said match D by means of its unique construction will be substantially physically stronger than re-ignitible matches developed to the present time and will have cer tain other properties of extreme criticality for producing a match of the desired characteristics, such as, for instance, all-owing the use of a relatively reduced amount of combustion rate modifier without diminution in the striking, extinguishing, and burning qualities of the match; and which thus permits of a relatively increased concentration of the striking ingredients so as to enhance the sensitivity of the match. Furthermore, the material of construction of the film assists in combustion control and, being combustible, burns without leaving appreciable residue. Thus, matches constructed in accordance with the present invention may be economically produced, are durable throughout an extended life; and possess qualities productive of constant operational characteristics.

It should be understood that changes and modifications in the formation, construction, arrangement, and combination of the parts of the re-ignitible match may be made and substituted for those herein shown and disclosed without departing from the nature and principle of our invention.

Having thus described our invention, what we claim and desire to secure by Letters Patent is:

1. A re-ignitible match having a combustible portion comprising an oxidizing agent from the class consisting of chlorates, perchlorates, nitrates and chromates, a combustion rate modifying agent from the class consisting of polymers of aldehydes and ammonia derivatives, a com-bustion supporting agent consisting of manganese dioxide, a binder from the class consisting of cellulose nitrate and cellulose acetate and a liquid monomeric agent capable of polymerizing in situ for forming a dense nonaporous, homogeneous mass for dispersion therein of the match ingredients, said agent being from the class consisting of mono-methyl methacrylate, styrene, vinyl chloride, acrylonitrile, and methyl acrylate, ethyl methacrylate, and iso butyl methacrylate.

2. A re-ignitible match as defined in claim 1 and further characterized by a combustible body surrounding said combustible portion, said combustible body comprising a combustion rate modifying agent from the class consisting of polymers of aldehydes and derivatives of ammonia and a liquid monomeric agent from the class consisting of mono-methyl methacrylate, styrene, vinyl chloride, acrylonitrile, and methyl acrylate, vinyl chloride, ethyl methacrylate, and iso butyl methacrylate.

3. A re-ignitible match as defined in claim 2, and further characterized by a film sheathingly surrounding said combustible body and being from the class consisting of re-generated cellulose and cellulose acetate, polyvinyl acetate and polyvinyl chloride.

4. A re-ignitible match as defined in claim 1 and further characterized by a flat film from the class consisting of polyolefins, polystyrene and polyvinyl alcohol, said combustible portion being dispersed on said film, and said film with the combustible portion being provide thereon being spirially Wound, whereby said match is formed of alternating sections of said film and said combustible portion.

5. A re-ignitible match as defined in claim 4 and further characterized by said combustible body being approximately .()1 inch thick and the thickness of said film being approximately .001 inch thick.

6. A re-ignitible match as defined in claim 1, and further characterized by the combustible agents, being even burning, from the class consisting of pentaerythritol and ferric sulfate.

7. A re-ignitible match as defined in claim 6, and further characterized by a catalyst for the liquid monomeric agent from the class consisting of benzoyl peroxide.

8. A method for producing a re-ignitible match Which comprises providing a binder from the class consisting of cellulose nitrate and cellulose acetate, providing a liquid monomer capable of polymerizing in situ said monomer being from the class consisting of mono-methyl methacrylate, styrene, vinyl chloride, acrylonitrile, and methyl acrylate, ethyl methacrylate, and iso butyl methacrylate, dissolving the binder in said monomer, providing in ground form, a solid oxidizing agent from the class consisting of chlorates, perchlorates, nitrates, and chromates, a solid combustion rate modifying agent from the class consisting of polymers of aldehydes and ammonia derivatives, and a solid combustion supporting agent consisting of manganese dioxide, and adding said ground agents to the solution, then mixing said solution for forming a first plastic mass, shaping said plastic mass into predetermined form, Wrapping said shaped mass in an impervious film, then curing said plastic mass into a dense, hard mass, and then cutting said hard mass into sections of predetermined size.

9. A method for producing a re-ignitible match having a combustible portion, and a sheet surrounding said body, which method comprises providing a binder from the class consisting of cellulose nitrate and cellulose acetate, providing a liquid monomer capable of polymerizing in situ said monomer being from the class consisting of mono-methyl methacrylate, styrene, vinyl chloride, acrylonitrile, and methyl acrylate, ethyl methacrylate, and iso butyl methacrylate, dissolving the binder in said monomer, providing in ground form, a solid oxidizing agent from the class consisting of chlorates, perchlorates, nitrates, and chromates, a solid combustion rate modifying agent from the class consisting of polymers of aldehydes and ammonia derivatives, and a solid combustion supporting agent consisting of manganese dioxide, and adding said ground agents to the solution, then mixing said solution for forming a first plastic mass, then dissolving the binder in said monomer, providing a plasticity producing agent, providing an even combustion producing agent from the class consisting of boric acid and trioxane and mixtures of the same, and adding said agents to the solution, then mixing said solution for forming a second plastic mass, then extruding said first and second plastic masses so that the second mass will surround the first mass, then subjecting said concentric first and second masses to conditions conducive to curing, then wrapping the cured masses by a sheath-forming film, and then cutting said sheath-covered masses to sections of predetermined size.

10. A method for producing a re-ignitible match comprising providing a plastic mass comprised of an oxidizing agent from the class consisting of chlorates, perchlorates, nitrates, and chromates, combustion rate modifying agent from the class consisting of polymers of aldehydes and ammonia derivatives, a combustion supporting agent consisting of manganese dioxide, a binder from the class consisting of cellulose nitrate and cellulose acetate, and a normally liquid monomeric dispersant capable of polymerizing in situ, said monomer being from the class consisting of monomethyl methacrylate, styrene, vinyl chloride, acrylonitrile, and methyl ac-rylate, ethyl methacrylate, and iso butyl methacrylate, providing a section of film from the class consisting of polyolefins and combinations thereof, and polyvinyl alcohols, spreading the plastic mass upon the film section to a predetermined thickness, then rolling the mass of applied film upon itself to a tight roll so that the mass and film form oompanion spiral sections proceeding from the center of the body, then curing the plastic mass for integrating the body into a cohesive unit and then cutting the now cured body into sections of predetermined length.

References Cited by the Examiner UNITED STATES PATENTS 1,056,177 3/ 1913 Humphrey 4446 2,093,516 9/ 1937 Foldi et a1. 4442 2,568,285 9/ 1951 Knutsson-Hall 4448 2,743,580 5/1956 Loeb 4439 X FOREIGN PATENTS 230,523 1/ 1959 Australia.

230,554 9/ 1960 Australia.

510,169 8/1920 France.

DANIEL E. WYMAN, Primary Examiner. C. F. DEES, Assistant Examiner.

Claims

1. A RE-IGNITIBLE MATCH HAVING A COMBUSTIBLE PORTION COMPRISING AN OXIDIZING AGENT FROM THE CLASS CONSISTING OF CHLORATES, PERCHLORATES, NITRATES AND CHROMATES, A COMBUSTION RATE MODIFYING AGENT FROM THE CLASS CONSISTING OF POLYMERS OF ALDEHYDES AND AMMONIA DERIVATIVES, A COMBUSTION SUPPORTING AGENT CONSISTING OF MANGANESE DIOXIDE, A BINDER FROM THE CLASS CONSISTING OF CELLULOSE NITRATE AND CELLULOSE ACETATE AND A LIQUID MONOMERIC AGENT CAPABLE OF POLYMERIZING IN SITU FOR FORMING A DENSE NON-POROUS, HOMOGENEOUS MASS FOR DISPERSION THEREIN OF THE MATCH INGREDIENTS, SAID AGENT BEING FROM THE CLASS CONSISTING OF MONO-METHYL METACRYLATE, STYRENE, VINYL CHLORIDE, ACRYLONITRILE, AND METHYL ACRYLATE, ETHYL METHACRYLATE, AND ISO BUTYL METHACRYLATE.