Article, Particularly an Air Spring Bellows, a Metal-Rubber Element, or a Vibration Damper

Abstract

The invention relates to an article (1) having a main body composed of a polymeric material having elastic properties, in particular an air spring bellows (1), a metal-rubber element or a vibration damper.

In order to improve its fire-retardant and/or flame-retardant properties, the article has been provided partially or completely with a flock (9).

Claims

1-4. (canceled)

5. An article comprising a main body composed of a polymeric material having elastic properties, wherein part of a surface of the article has been provided with at least one flock.

6. The article according to claim 5 wherein the flock is intrinsically fire-retardant and/or flame-retardant.

7. The article according to claim 5 wherein the flock is applied to the surface of the article in at least one process step with the aid of at least one flocking adhesive and/or with the aid of at least one composition based on at least one isocyanate.

8. The article according to claim 7 wherein the flocking adhesive and/or the composition based on at least one isocyanate comprises at least one fire-retardant substance.

9. The article according to claim 7 wherein the flocking adhesive and/or the composition based on at least one isocyanate comprise(s) glass microbeads and/or hollow glass microbeads.

10. The article according to claim 7 wherein the flocking adhesive and/or the composition based on at least one isocyanate comprise(s) hollow glass microbeads comprising fire-retardant substances encapsulated therein.

11. The article according to claim 7 wherein the flocking adhesive and/or the composition based on at least one isocyanate comprise(s) hollow plastic beads in already expanded form and/or in an expandable form.

12. The article according to claim 5 wherein the flock further comprises a reflective substance vapor-deposited on a surface of the flock.

13. The article according to claim 12 wherein the reflective substance delays release of heat and formation of both dense and toxic smoke gases.

14. The article according to claim 12 wherein the reflective substance comprises metal particles.

15. An article comprising a main body composed of a polymeric material having elastic properties, wherein in that all of the article surface has been provided with at least one flock.

16. The article according to claim 15 wherein the flock is intrinsically fire-retardant and/or flame-retardant.

17. The article according to claim 15 wherein the flock is applied to the surface of the article in at least one process step with the aid of at least one flocking adhesive and/or with the aid of at least one composition based on at least one isocyanate.

18. The article according to claim 17 wherein the flocking adhesive and/or the composition based on at least one isocyanate comprises at least one fire-retardant substance.

19. The article according to claim 17 wherein the flocking adhesive and/or the composition based on at least one isocyanate comprise(s) glass microbeads and/or hollow glass microbeads.

20. The article according to claim 17 wherein the flocking adhesive and/or the composition based on at least one isocyanate comprise(s) hollow glass microbeads comprising fire-retardant substances encapsulated therein.

21. The article according to claim 17 wherein the flocking adhesive and/or the composition based on at least one isocyanate comprise(s) hollow plastic beads in already expanded form and/or in an expandable form.

22. The article according to claim 15 wherein the flock further comprises a reflective substance vapor-deposited on a surface of the flock.

23. The article according to claim 22 wherein the reflective substance delays release of heat and formation of both dense and toxic smoke gases.

24. The article according to claim 22 wherein the reflective substance comprises metal particles.

Description

[0049] The invention is now more particularly described by means of exemplary embodiments with reference to schematic drawings. The figures show:

[0050] FIG. 1 an air spring arrangement;

[0051] FIG. 2 the layer structure of an air spring bellows with a flock of the invention.

[0052] FIG. 3 a section through a vibration damper

[0053] FIG. 1 shows an air spring arrangement 1 comprising an air spring bellows 2 and also the two connection components in the form of lid 3 and rolling piston 4, to form an elastic-volume air chamber 5.

[0054] FIG. 2 then shows the layer structure of a finalized air spring bellows 2. This air spring bellows consists of an inner layer 6 and an outer layer 7 as elastic main body, for example composed of a vulcanized mixture of rubber based on NR, a strength member layer 8, for example in the form of a polyamide weave, embedded between the inner layer 6 and the outer layer 7, and also of a cover 9, which is in direct contact with the outer layer 8. The flock 9 was applied with a flocking adhesive containing flame-retardant substances.

[0055] FIG. 3 shows a section through a vibration damper 10. The detail in the circle from FIG. 3 is shown in detail in FIGS. 3a and 3b. Between the inner layer 16 and the outer layer 17 is an embedded strength member layer 18, for example in the form of a polyamide weave.

[0056] The flock 19 was applied with a flocking adhesive 20 in FIG. 3a and without a flocking adhesive in FIG. 3b.

LIST OF REFERENCE SIGNS

(Part of the Description)

[0057] 1 air spring arrangement

[0058] 2 air spring bellows

[0059] 3 cover

[0060] 4 rolling piston

[0061] 5 elastic-volume air chamber

[0062] 6 inner layer of an air spring bellows

[0063] 7 outer layer of an air spring bellows

[0064] 8 strength member layer of an air spring bellows

[0065] 9 flock

[0066] 10 damping element

[0067] 16 inner layer of a damping element

[0068] 17 outer layer of a damping element

[0069] 18 strength member layer of a damping element

[0070] 19 flock

[0071] 20 flocking adhesive