Claims
- 1. In a combination of a tire and a cured puncture sealant layer on an inner surface of said tire, the improvement comprising:
- said cured puncture sealant comprising (A) a copolymer of at least one acrylate selected from the group consisting of 2-ethylhexyl acrylate and n-butyl acrylate, and at least one glycidyl monomer, the amount of said glycidyl monomer being 0.5-5 parts by weight to 100 parts by weight of said acrylate, (B) a curing agent for epoxy resin, and (C) a polymer whose solubility parameter to the copolymer is within .+-.0.5 in an amount up to 200 parts by weight to 100 parts by weight of said copolymer, said cured puncture sealant exhibiting an elongation at break of 500 to 2000% and a tensile strength of 0.7 to 5.0 kg/cm.sup.2.
- 2. The combination of claim 1, in which the amount of said glycidyl monomer is 0.8-3 parts by weight to 100 parts by weight of said acrylate.
- 3. The combination of claim 1 in which the polymer is a homopolymer or copolymer of at least one member selected from the group consisting of 2-ethylhexyl acrylate, n-butyl acrylate, and ethyl acrylate.
- 4. The combination of claim 1 in which the polymer is nitrile-butadiene rubber.
- 5. The combination of claim 1 in which the copolymer (A) contains at least one acrylate other than 2-ethylhexyl acrylate and n-butyl acrylate having no epoxy group as a comonomer.
- 6. The combination of claim 5 in which said other acrylate is contained in an amount of not more than 25 parts by weight to 100 parts by weight of the total amount of 2-ethylhexyl acrylate and n-butyl acrylate.
- 7. The combination of claim 5 in which said other acrylate is a member selected from the group consisting of ethyl acrylate and cetyl acrylate.
- 8. The combination comprising a sealed rubber product and a cured puncture sealant layer on an inner surface of said product, said sealant comprising (A) a copolymer of at least one acrylate selected from the group consisting of 2-ethylhexyl acrylate and n-butyl acrylate, and at least one glycidyl monomer the amount of said glycidyl monomer being 0.5-5 parts by weight to 100 parts by weight of said acrylate, (B) a curing agent for epoxy resin, and (C) a polymer whose solubility parameter to the copolymer is within .+-.0.5 in an amount up to 200 parts by weight to 100 parts by weight of said copolymer, said cured puncture sealant exhibiting an elongation at break of 500 to 2000% and a tensile strength of 0.7 to 5.0 kg/cm.sup.2.
Priority Claims (1)
Number |
Date |
Country |
Kind |
52/109787 |
Sep 1977 |
JPX |
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CROSS REFERENCE TO RELATED APPLICATIONS
This application is a continuation-in-part of copending application Ser. No. 942,451, filed Sept. 14, 1978, now abandoned.
US Referenced Citations (3)
Number |
Name |
Date |
Kind |
2827098 |
Semegen et al. |
Mar 1958 |
|
3758635 |
Labana et al. |
Sep 1973 |
|
4038454 |
Lehmann et al. |
Jul 1977 |
|
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
942451 |
Sep 1978 |
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