Claims
- 1. A housing wheel part for securing inside a wheel guard of a motor vehicle and reducing structure-borne noise transmitted to the interior of the motor vehicle, said part being formed from a viscoelastic plastics material having a dynamic elasticity modulus of 10.sup.7 to 10.sup.10 Nm.sup.-2 and a loss factor of at least 0.05, said plastics material consisting of from 60 to 75% by weight of polyurethane-elastomers and includes from 25 to 40% by weight of amorphous filler.
- 2. A housing wheel part for securing inside a wheel guard of a motor vehicle and reducing structure-borne noise transmitted to the interior of the motor vehicle, said part being formed from a viscoelastic plastics material having a dynamic elasticity modulus of 10.sup.7 to 10.sup.10 Nm.sup.-2 and a loss factor of at least 0.05, said plastics material consisting of from 60 to 75% by weight of thermoplastic polyamide-elastomers, and includes from 25 to 40% by weight of amorphous filler.
- 3. A housing wheel part for securing inside a wheel guard of a motor vehicle and reducing structure-borne noise transmitted to the interior of the motor vehicle, said part being formed from a viscoelastic plastics material having a dynamic elasticity modulus of 10.sup.7 to 10.sup.10 Nm.sup.-2 and a loss factor of at least 0.05, said plastics material consisting of from 60 to 75% by weight of elastomer-modified polyamides and includes from 25 to 40% by weight of amorphous filler.
- 4. A housing wheel part for securing inside a wheel guard of a motor vehicle and reducing structure-borne noise transmitted to the interior of the motor vehicle, said part being formed from a viscoelastic plastics material having a dynamic elasticity modulus of 10.sup.7 to 10.sup.10 Nm.sup.-2 and a loss factor of at least 0.05, said plastics material consisting of from 60 to 75% by weight of thermoplastic polyesters with elastomer characteristic and includes from 25 to 40% by weight of amorphous filler.
- 5. A housing wheel part according to claim 1, wherein said amorphous filler is amorphous heavy spar.
- 6. A housing wheel part according to claim 1, wherein said amorphous filler is amorphous chalk.
- 7. A housing wheel part according to claim 1, wherein said amorphous filler is amorphous powdered slate.
- 8. A housing wheel part according to claim 1, wherein said amorphous filler is amorphous talc.
- 9. A housing wheel part according to claim 1, wherein said amorphous filler is a mixture of amorphous chalk and amorphous heavy spar and amorphous talc.
- 10. A housing wheel part according to claim 2, wherein said amorphous filler is amorphous heavy spar.
- 11. A housing wheel part according to claim 2, wherein said amorphous filler is amorphous chalk.
- 12. A housing wheel part according to claim 2, wherein said amorphous filler is amorphous powdered slate.
- 13. A housing wheel part according to claim 2, wherein said amorphous filler is amorphous talc.
- 14. A housing wheel part according to claim 2, wherein said amorphous filler is a mixture of amorphous chalk and amorphous heavy spar and amorphous talc.
- 15. A housing wheel part according to claim 3, wherein said amorphous filler is amorphous heavy spar.
- 16. A housing wheel part according to claim 3, wherein said amorphous filler is amorphous chalk.
- 17. A housing wheel part according to claim 3, wherein said amorphous filler is amorphous powdered slate.
- 18. A housing wheel part according to claim 3, wherein said amorphous filler is amorphous talc.
- 19. A housing wheel part according to claim 3, wherein said amorphous filler is a mixture of amorphous chalk and amorphous heavy spar and amorphous talc.
- 20. A housing wheel part according to claim 4, wherein said amorphous filler is amorphous heavy spar.
- 21. A housing wheel part according to claim 4, wherein said amorphous filler is amorphous chalk.
- 22. A housing wheel part according to claim 4, wherein said amorphous filler is amorphous powdered slate.
- 23. A housing wheel part according to claim 4, wherein said amorphous filler is amorphous talc.
- 24. A housing wheel part according to claim 4, wherein said amorphous filler is a mixture of amorphous chalk and amorphous heavy spar and amorphous talc.
Priority Claims (2)
Number |
Date |
Country |
Kind |
3409404 |
Mar 1983 |
DEX |
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3343402 |
Nov 1983 |
DEX |
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Parent Case Info
This is a continuation of application Ser. No. 07/270,441, filed Nov. 8, 1988, now abandoned, which was a continuation of application Ser. No. 07/005,153, filed Mar. 4, 1987, now abandoned, which was a divisional of application Ser. No. 06/675,407, filed Nov. 27, 1984, now U.S. Pat. No. 4,663,381.
US Referenced Citations (6)
Divisions (1)
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Number |
Date |
Country |
Parent |
675407 |
Nov 1984 |
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Continuations (2)
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Number |
Date |
Country |
Parent |
270441 |
Nov 1988 |
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Parent |
5153 |
Mar 1987 |
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