Claims
- 1. Flame-resistant, hardenable polyorganosiloxane compound characterised by a content of 2 to 40 weight % hollow glass balls with an outside diameter of up to 200 .mu.m and 3 to 50 weight % of an inorganic intumescent compound which expands at a temperature from 80.degree. to 240.degree. C.
- 2. Compound according to claim 1 characterised by a content of 10 to 20 weight % hollow glass balls.
- 3. Compound according to claim 1 characterised in that the hollow glass balls are filled with a non-combustible gas.
- 4. Compound according to clam 1 characterised by a content of 5 to 25 weight % intumescent compound.
- 5. Compound according to claim 1 characterised in that the intumescent compound is selected from the group consisting of vermiculite, perlite, mica, expandable graphite, wermlandite, thanmasite and hydrocalcite.
- 6. Compound according to claim 5 characterised by the use of expandable graphite as the intumescent compound.
- 7. Compound according to claim 6 characterised by a content of 8 to 15 weight % expandable graphite.
- 8. A method for improving the fire resistance of a polyorganosiloxane composition which comprises providing in a hardenable polyorganosiloxane composition from 2 to 40 weight % of hollow glass balls with an outside diameter of up to 200 .mu.m and 3 to 50 weight % of an organic intumescent compound which expands at a temperature from 80.degree. C. to 240.degree. C.
- 9. A flame-resistant, hardenable polyorganosiloxane compound comprising 2 to 40 weight % hollow glass balls with an outside diameter of up to 200 micrometers and 3 to 50 weight % of expandable graphite.
- 10. The compound according to claim 9 in which the expandable graphite is present in an amount of 8 to 15 weight %.
- 11. In a method of sealing, the improvement consisting of forming a seal with the compound of claim 9.
- 12. In a method of sealing a window to make them fire-retardant, the improvement consisting of adhering and sealing the window with the compound of claim 9.
Priority Claims (1)
Number |
Date |
Country |
Kind |
4013161 |
Apr 1990 |
DEX |
|
Parent Case Info
This is a continuation of copending application Ser. No. 07/690,017 filed on Apr. 23, 1990, now abandoned.
US Referenced Citations (3)
Number |
Name |
Date |
Kind |
3957717 |
Harada et al. |
May 1976 |
|
4266039 |
Hons-Olivier et al. |
May 1981 |
|
4433069 |
Harper |
Feb 1984 |
|
Foreign Referenced Citations (1)
Number |
Date |
Country |
2909462 |
May 1989 |
DEX |
Continuations (1)
|
Number |
Date |
Country |
Parent |
690017 |
Apr 1991 |
|