DE1091320B - Self-sealing layers for inflatable hollow bodies made of rubber - Google Patents
Self-sealing layers for inflatable hollow bodies made of rubberInfo
- Publication number
- DE1091320B DE1091320B DEG14525A DEG0014525A DE1091320B DE 1091320 B DE1091320 B DE 1091320B DE G14525 A DEG14525 A DE G14525A DE G0014525 A DEG0014525 A DE G0014525A DE 1091320 B DE1091320 B DE 1091320B
- Authority
- DE
- Germany
- Prior art keywords
- peroxide
- weight
- vulcanizing agent
- self
- rubber
- 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.)
- Pending
Links
- 238000007789 sealing Methods 0.000 title claims description 20
- 229920001971 elastomer Polymers 0.000 title claims description 5
- 239000005060 rubber Substances 0.000 title claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 14
- 229920005549 butyl rubber Polymers 0.000 claims description 13
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 10
- 239000011593 sulfur Substances 0.000 claims description 9
- 229910052717 sulfur Inorganic materials 0.000 claims description 9
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 claims description 8
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 6
- 229920001577 copolymer Polymers 0.000 claims description 5
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 claims description 5
- VQTUBCCKSQIDNK-UHFFFAOYSA-N Isobutene Chemical group CC(C)=C VQTUBCCKSQIDNK-UHFFFAOYSA-N 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 4
- WTFXARWRTYJXII-UHFFFAOYSA-N iron(2+);iron(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[O-2].[Fe+2].[Fe+3].[Fe+3] WTFXARWRTYJXII-UHFFFAOYSA-N 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 3
- 238000004073 vulcanization Methods 0.000 claims description 3
- 150000001451 organic peroxides Chemical class 0.000 claims description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims 4
- 239000004840 adhesive resin Substances 0.000 claims 3
- 229920006223 adhesive resin Polymers 0.000 claims 3
- -1 caproyl Chemical group 0.000 claims 3
- DZCCLNYLUGNUKQ-UHFFFAOYSA-N n-(4-nitrosophenyl)hydroxylamine Chemical compound ONC1=CC=C(N=O)C=C1 DZCCLNYLUGNUKQ-UHFFFAOYSA-N 0.000 claims 3
- 150000002978 peroxides Chemical class 0.000 claims 3
- 239000004014 plasticizer Substances 0.000 claims 3
- AZQWKYJCGOJGHM-UHFFFAOYSA-N 1,4-benzoquinone Chemical compound O=C1C=CC(=O)C=C1 AZQWKYJCGOJGHM-UHFFFAOYSA-N 0.000 claims 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical class [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims 2
- 239000005662 Paraffin oil Substances 0.000 claims 2
- 229920002367 Polyisobutene Polymers 0.000 claims 2
- 235000021355 Stearic acid Nutrition 0.000 claims 2
- YADSGOSSYOOKMP-UHFFFAOYSA-N dioxolead Chemical compound O=[Pb]=O YADSGOSSYOOKMP-UHFFFAOYSA-N 0.000 claims 2
- DLINORNFHVEIFE-UHFFFAOYSA-N hydrogen peroxide;zinc Chemical compound [Zn].OO DLINORNFHVEIFE-UHFFFAOYSA-N 0.000 claims 2
- 239000004615 ingredient Substances 0.000 claims 2
- 239000007788 liquid Substances 0.000 claims 2
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims 2
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims 2
- 239000008117 stearic acid Substances 0.000 claims 2
- 125000000383 tetramethylene group Chemical group [H]C([H])([*:1])C([H])([H])C([H])([H])C([H])([H])[*:2] 0.000 claims 2
- 239000011787 zinc oxide Substances 0.000 claims 2
- 229940105296 zinc peroxide Drugs 0.000 claims 2
- 239000004343 Calcium peroxide Substances 0.000 claims 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims 1
- SPAGIJMPHSUYSE-UHFFFAOYSA-N Magnesium peroxide Chemical compound [Mg+2].[O-][O-] SPAGIJMPHSUYSE-UHFFFAOYSA-N 0.000 claims 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims 1
- 239000000853 adhesive Substances 0.000 claims 1
- 230000001070 adhesive effect Effects 0.000 claims 1
- 239000003963 antioxidant agent Substances 0.000 claims 1
- 229910052788 barium Inorganic materials 0.000 claims 1
- 125000003236 benzoyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C(*)=O 0.000 claims 1
- LHJQIRIGXXHNLA-UHFFFAOYSA-N calcium peroxide Chemical compound [Ca+2].[O-][O-] LHJQIRIGXXHNLA-UHFFFAOYSA-N 0.000 claims 1
- 235000019402 calcium peroxide Nutrition 0.000 claims 1
- 238000003490 calendering Methods 0.000 claims 1
- 229910052802 copper Inorganic materials 0.000 claims 1
- 239000010949 copper Substances 0.000 claims 1
- 125000003438 dodecyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 claims 1
- 239000000945 filler Substances 0.000 claims 1
- 229960004995 magnesium peroxide Drugs 0.000 claims 1
- 229910052751 metal Inorganic materials 0.000 claims 1
- 239000002184 metal Substances 0.000 claims 1
- 125000001421 myristyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 claims 1
- 125000001400 nonyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 claims 1
- 239000002245 particle Substances 0.000 claims 1
- 150000004977 peroxyborates Chemical class 0.000 claims 1
- 239000000049 pigment Substances 0.000 claims 1
- 229920000642 polymer Polymers 0.000 claims 1
- 239000011591 potassium Substances 0.000 claims 1
- 229910052700 potassium Inorganic materials 0.000 claims 1
- 239000012744 reinforcing agent Substances 0.000 claims 1
- 229910052709 silver Inorganic materials 0.000 claims 1
- 239000004332 silver Substances 0.000 claims 1
- 239000011734 sodium Substances 0.000 claims 1
- 229910052708 sodium Inorganic materials 0.000 claims 1
- WODGXFMUOLGZSY-UHFFFAOYSA-J tetrasodium phosphonatooxy phosphate Chemical compound [Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OOP([O-])([O-])=O WODGXFMUOLGZSY-UHFFFAOYSA-J 0.000 claims 1
- 235000015961 tonic Nutrition 0.000 claims 1
- 230000001256 tonic effect Effects 0.000 claims 1
- 229960000716 tonics Drugs 0.000 claims 1
- 125000002889 tridecyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 claims 1
- 125000002948 undecyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 claims 1
- 229910052725 zinc Inorganic materials 0.000 claims 1
- 239000011701 zinc Substances 0.000 claims 1
- YXIWHUQXZSMYRE-UHFFFAOYSA-N 1,3-benzothiazole-2-thiol Chemical compound C1=CC=C2SC(S)=NC2=C1 YXIWHUQXZSMYRE-UHFFFAOYSA-N 0.000 description 2
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 2
- 125000004432 carbon atom Chemical group C* 0.000 description 2
- 150000001993 dienes Chemical class 0.000 description 2
- PMJHHCWVYXUKFD-SNAWJCMRSA-N (E)-1,3-pentadiene Chemical group C\C=C\C=C PMJHHCWVYXUKFD-SNAWJCMRSA-N 0.000 description 1
- MHNNAWXXUZQSNM-UHFFFAOYSA-N 2-methylbut-1-ene Chemical group CCC(C)=C MHNNAWXXUZQSNM-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 150000005673 monoalkenes Chemical class 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- PMJHHCWVYXUKFD-UHFFFAOYSA-N piperylene Natural products CC=CC=C PMJHHCWVYXUKFD-UHFFFAOYSA-N 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- KUAZQDVKQLNFPE-UHFFFAOYSA-N thiram Chemical compound CN(C)C(=S)SSC(=S)N(C)C KUAZQDVKQLNFPE-UHFFFAOYSA-N 0.000 description 1
- 229960002447 thiram Drugs 0.000 description 1
- 239000004636 vulcanized rubber Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C19/00—Tyre parts or constructions not otherwise provided for
- B60C19/12—Puncture preventing arrangements
- B60C19/122—Puncture preventing arrangements disposed inside of the inner liner
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D30/00—Producing pneumatic or solid tyres or parts thereof
- B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
- B29D30/0681—Parts of pneumatic tyres; accessories, auxiliary operations
- B29D30/0685—Incorporating auto-repairing or self-sealing arrangements or agents on or into tyres
-
- 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
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
-
- 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
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
-
- 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
- C08K5/04—Oxygen-containing compounds
- C08K5/14—Peroxides
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/18—Homopolymers or copolymers of hydrocarbons having four or more carbon atoms
- C08L23/20—Homopolymers or copolymers of hydrocarbons having four or more carbon atoms having four to nine carbon atoms
- C08L23/22—Copolymers of isobutene; Butyl rubber ; Homo- or copolymers of other iso-olefins
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J123/00—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers
- C09J123/02—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers not modified by chemical after-treatment
- C09J123/18—Homopolymers or copolymers of hydrocarbons having four or more carbon atoms
- C09J123/20—Homopolymers or copolymers of hydrocarbons having four or more carbon atoms having four to nine carbon atoms
- C09J123/22—Copolymers of isobutene; Butyl rubber ; Homo- or copolymers of other iso-olefines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D30/00—Producing pneumatic or solid tyres or parts thereof
- B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
- B29D30/0681—Parts of pneumatic tyres; accessories, auxiliary operations
- B29D30/0685—Incorporating auto-repairing or self-sealing arrangements or agents on or into tyres
- B29D2030/0686—Incorporating sealants on or into tyres not otherwise provided for; auxiliary operations therefore, e.g. preparation of the tyre
- B29D2030/0691—Incorporating sealants on or into tyres not otherwise provided for; auxiliary operations therefore, e.g. preparation of the tyre through the use of a toroidal support, e.g. a core, a part of the tyre or an inner tube
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D30/00—Producing pneumatic or solid tyres or parts thereof
- B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
- B29D30/0681—Parts of pneumatic tyres; accessories, auxiliary operations
- B29D30/0685—Incorporating auto-repairing or self-sealing arrangements or agents on or into tyres
- B29D2030/0686—Incorporating sealants on or into tyres not otherwise provided for; auxiliary operations therefore, e.g. preparation of the tyre
- B29D2030/0695—Incorporating sealants on or into tyres not otherwise provided for; auxiliary operations therefore, e.g. preparation of the tyre the sealant being in the form of one wide strip, e.g. a patch
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2666/00—Composition of polymers characterized by a further compound in the blend, being organic macromolecular compounds, natural resins, waxes or and bituminous materials, non-macromolecular organic substances, inorganic substances or characterized by their function in the composition
- C08L2666/54—Inorganic substances
Description
DEUTSCHESGERMAN
An sich ist die Herstellung von Vulkanisaten aus Butylkautschuk, einem Vulkanisiermittel und einem Hilfsvulkanisiermittel bekannt.In itself is the production of vulcanizates from butyl rubber, a vulcanizing agent and an auxiliary vulcanizing agent known.
Nach der USA.-Patentschrift 2 587 470 sind auch schon selbstdichtende Schichten bekannt, die neben anderen Stoffen Butylkautschuk, Eisenoxyd, Beschleuniger und Schwefel enthalten.According to US Pat. No. 2,587,470, self-sealing layers are also known, among others Substances contain butyl rubber, iron oxide, accelerator and sulfur.
Erfindungsgemäß werden demgegenüber bedeutend verbesserte selbstdichtende Schichten für aufblasbare Hohlkörper aus Kautschuk mit einer Dichtungsschicht aus einer Mischung von Butylkautschuk, schwarzem Eisenoxyd, einem Vulkanisiermittel und einem Hilfsvulkanisiermittel vorgeschlagen, in der das Hilfsvulkanisiermittel aus einem anorganischen oder organischen Peroxyd besteht.In contrast, according to the invention, significantly improved self-sealing layers for inflatable hollow bodies made of rubber with a sealing layer a mixture of butyl rubber, black iron oxide, a vulcanizing agent and an auxiliary vulcanizing agent proposed in which the auxiliary vulcanizing agent consists of an inorganic or organic peroxide consists.
Mit diesen selbstdichtenden Schichten ausgerüstete Reifen schließen sich, wenn sie durchlöchert werden, von selbst, welche Eigenschaften die Masse auch bei hohen Temperaturen beibehält, ohne zu brechen oder auszutrocknen. Die neuen Schichten sollen vor allem dort Anwendung finden, wo Zentrifugalkräfte ein plastisches Fließen (Erweichen) des Dichtungsmittels auslösen können und während des Gebrauchs Erhitzung eintritt. Die Erfindung soll an Hand der Zeichnungen erläutert werden.Tires equipped with these self-sealing layers close themselves when they are punctured even what properties the compound retains even at high temperatures without breaking or drying out. The new layers are primarily intended to be used where centrifugal forces cause plastic flow (Softening) of the sealant and heating occurs during use. The invention should be explained on the basis of the drawings.
Fig. 1 zeigt einen zum Teil geöffneten Luftreifen mit einer selbstdichtenden Schicht gemäß der Erfindung;Fig. 1 shows a partially opened pneumatic tire with a self-sealing layer according to the invention;
Fig. 2 stellt einen Durchschnitt des in Fig. 1 gezeigten Gegenstandes in Richtung 2-2 dar, undFig. 2 represents an intersection of the item shown in Fig. 1 in the direction 2-2, and
Fig. 3 zeigt einen Teil eines nach der Erfindung hergestellten schlauchlosen Reifens.Figure 3 shows part of a tubeless tire made in accordance with the invention.
Der in den Fig. 1 und 2 dargestellte Luftschlauch besteht aus der Schlauchwand 10 aus vulkanisiertem Kautschuk mit einer einzigen erfindungsgemäßen selbstdichtenden Schicht 11 auf der Innenseite der Lauffläche des Schlauches, die an dem ganzen Umkreis der Lauffläche der Schlauchwand 10 haftet.The air hose shown in FIGS. 1 and 2 consists of the hose wall 10 made of vulcanized Rubber with a single self-sealing layer 11 according to the invention on the inside of the tread of the hose, which adheres to the entire circumference of the running surface of the hose wall 10.
Die erfindungsgemäßen Schichten eignen sich besonders für schlauchlose Reifen (vgl. Fig. 3), die aus der üblichen Laufdecke 14, der Karkasse 15 und den Seitenteilen 16 bestehen, wobei eine Dichtungsschicht 17 innerhalb der Karkasse des Schlauches in der Nähe der Lauffläche angebracht ist.. Karkasse und Laufdecke des Reifens können in der üblichen Weise aus natürlichem oder synthetischem Kautschuk hergestellt sein.The layers according to the invention are particularly suitable for tubeless tires (see FIG. 3), which are made from usual tread 14, the carcass 15 and the side parts 16 are made, with a sealing layer 17 within the casing of the tube is attached near the tread .. casing and tread of the tire can be made in the usual way from natural or synthetic rubber.
Wie beim Luftreifen, gestattet die Verwendung eines teilweise vulkanisierten Butylkautschuks als Dichtungsschicht einen einfachen Aufbau, wobei nur eine einzige Dichtungsschicht auf der Innenfläche des Reifens angebracht ist, statt diese Schicht zwischen zwei Versteifungsschichten anzubringen. Natürlich kann gegebenenfalls die erfindungsgemäße selbstdichtende Schicht auch zwischen zwei anderen Schichten eingeschlossen sein. Es können auch mehrere selbstdichtende Schichten zwischen Schichten anderer Stoffe eingelegt sein.As with the pneumatic tire, the use of a partially vulcanized butyl rubber as the sealing layer allows a simple construction with only one Sealing layer is applied to the inner surface of the tire, instead of this layer between two stiffening layers to attach. Of course, the self-sealing layer according to the invention can optionally also be enclosed between two other layers be. Several self-sealing layers can also be inserted between layers of other materials.
für aufblasbare Hohlkörperfor inflatable hollow bodies
aus Kautschukmade of rubber
Anmelder:Applicant:
The B. F. Goodrich Company,
New York, N. Y. (V. St. A.)The BF Goodrich Company,
New York, NY (V. St. A.)
Vertreter: Dr.-Ing. H. Ruschke, Berlin-Friedenau,Representative: Dr.-Ing. H. Ruschke, Berlin-Friedenau,
und Dipl.-Ing. K. Grentzenberg,
München 27, Pienzenauer Str. 2, Patentanwälteand Dipl.-Ing. K. Grentzenberg,
Munich 27, Pienzenauer Str. 2, patent attorneys
Balfour Yoewell Connell, Keokuk, Ia. (V. St. A.),
ist als Erfinder genannt wordenBalfour Yoewell Connell, Keokuk, Ia. (V. St. A.),
has been named as the inventor
Unter »Butylkautschuk« sind hier kautschukartige Mischpolymerisate aus über 50 Gewichtsprozent eines Isoolefins mit 4 bis 7 C-Atomen und — als Rest — einem offenkettigen konjugierten Diolefin mit 4 bis 8 C-Atomen, ζ. B. ein kautschukartiges Mischpolymerisat aus einer größeren Menge Isobutylen und einer kleinen Menge Isopren, zu verstehen. Bevorzugt besteht das Mischpolymerisat aus 70 bis 991^ Gewichtsteilen eines Monoolefins, ζ. B. Isobutylen oder Äthylmethyläthylen, die mit 1Z2 bis 30 Gewichtsteilen eines offenkettigen konjugierten Diolefins, ζ. B. Isopren, Butadien-1,3, Piperylen, 2,3-Dimethylbutadien-1,3,1,2-Dimethylbutadien-1,3 (3-Methylpentadien-1,3), 1,3-Dimethylbutadien-1,3, 1-Äthylbutadien-1,3, 1,4-Dimethylbutadien-1,3, mischpolymerisiert sind.“Butyl rubber” here includes rubber-like copolymers made from over 50 percent by weight of an isoolefin with 4 to 7 carbon atoms and - as the remainder - an open-chain conjugated diolefin with 4 to 8 carbon atoms, ζ. B. to understand a rubber-like copolymer of a large amount of isobutylene and a small amount of isoprene. Preferably, the copolymer of a monoolefin 70 is 1 to 99 parts by weight ^, ζ. B. isobutylene or ethylmethylethylene with 1 Z 2 to 30 parts by weight of an open-chain conjugated diolefin, ζ. B. isoprene, 1,3-butadiene, piperylene, 2,3-dimethylbutadiene-1,3,1,2-dimethylbutadiene-1,3 (3-methylpentadiene-1,3), 1,3-dimethylbutadiene-1,3 , 1-ethylbutadiene-1,3, 1,4-dimethylbutadiene-1,3, are copolymerized.
Als Vulkanisiermittel kann in der selbstdichtenden Schicht Schwefel vorhanden sein. In diesem Fall ist vorzugsweise auch einer der üblichen Beschleuniger, z. B. Mercaptobenzothiazol, zugegen. Der Schwefel kann in der Masse entweder in Form elementaren Schwefels oder in Form einer Verbindung (z. B. als Tetramethylthiuramdisulfid) enthalten sein, die beim Erhitzen Schwefel frei macht. Im letzteren Falle kann die schwefelliefernde Verbindung bekanntlich auch als Vulkanisationsbeschleuniger wirken. Gleichgültig, in welcher Form Schwefel zugegeben wird, die Gesamtmenge des für die Vulkanisation zur Verfügung stehenden Schwefels soll 0,2 bis 1,0 und vorzugsweise 0,3 bis 0,6 Gewichtsprozent des Butylkautschuks ausmachen.Sulfur can be present as a vulcanizing agent in the self-sealing layer. In this case it is preferably also one of the usual accelerators, e.g. B. mercaptobenzothiazole, present. The sulfur can in bulk either in the form of elemental sulfur or in the form of a compound (e.g. as tetramethylthiuram disulfide) which releases sulfur when heated. In the latter case, the sulfur-producing Compound is known to also act as a vulcanization accelerator. Regardless of the form Sulfur is added, the total amount of sulfur available for vulcanization should Make up 0.2 to 1.0, and preferably 0.3 to 0.6 percent by weight of the butyl rubber.
009 628/431009 628/431
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEG14525A DE1091320B (en) | 1952-06-04 | 1954-05-28 | Self-sealing layers for inflatable hollow bodies made of rubber |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US291728A US2765018A (en) | 1952-06-04 | 1952-06-04 | Self-sealing article |
DEG14525A DE1091320B (en) | 1952-06-04 | 1954-05-28 | Self-sealing layers for inflatable hollow bodies made of rubber |
Publications (1)
Publication Number | Publication Date |
---|---|
DE1091320B true DE1091320B (en) | 1960-10-20 |
Family
ID=25978034
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEG14525A Pending DE1091320B (en) | 1952-06-04 | 1954-05-28 | Self-sealing layers for inflatable hollow bodies made of rubber |
Country Status (1)
Country | Link |
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DE (1) | DE1091320B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3388485A1 (en) * | 2017-04-10 | 2018-10-17 | ContiTech AG | Rubber composition and elastomeric article with improved adhesion |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2587470A (en) * | 1946-12-14 | 1952-02-26 | Goodrich Co B F | Pneumatic tire |
-
1954
- 1954-05-28 DE DEG14525A patent/DE1091320B/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2587470A (en) * | 1946-12-14 | 1952-02-26 | Goodrich Co B F | Pneumatic tire |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3388485A1 (en) * | 2017-04-10 | 2018-10-17 | ContiTech AG | Rubber composition and elastomeric article with improved adhesion |
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