IT1149171B - Silicone impregnated packing made from paper - is free from amine and bonded with rubber free from sulphur - Google Patents
Silicone impregnated packing made from paper - is free from amine and bonded with rubber free from sulphurInfo
- Publication number
- IT1149171B IT1149171B IT4972382A IT4972382A IT1149171B IT 1149171 B IT1149171 B IT 1149171B IT 4972382 A IT4972382 A IT 4972382A IT 4972382 A IT4972382 A IT 4972382A IT 1149171 B IT1149171 B IT 1149171B
- Authority
- IT
- Italy
- Prior art keywords
- free
- silicone
- contg
- bonded
- paper
- Prior art date
Links
- 238000012856 packing Methods 0.000 title abstract 5
- 229920001296 polysiloxane Polymers 0.000 title abstract 3
- 150000001412 amines Chemical class 0.000 title abstract 2
- 229920001971 elastomer Polymers 0.000 title abstract 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 title 1
- 239000005864 Sulphur Substances 0.000 title 1
- 238000005470 impregnation Methods 0.000 abstract 3
- 239000011230 binding agent Substances 0.000 abstract 2
- 229920002050 silicone resin Polymers 0.000 abstract 2
- 229920000459 Nitrile rubber Polymers 0.000 abstract 1
- 239000003054 catalyst Substances 0.000 abstract 1
- 238000011065 in-situ storage Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 239000002904 solvent Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- 239000000080 wetting agent Substances 0.000 abstract 1
- -1 wetting agents Chemical class 0.000 abstract 1
Landscapes
- Sealing Material Composition (AREA)
Abstract
In a packing impregnated with hardened silicone resin, the impregnation is carried out after the packing has been formed from paper which is free from matter contg. amines, e.g. wetting agents, and which has been bonded with a rubber binder free from S or S donors. The pref. binder is nitrile rubber, which is resistant to heat and oil. Rings with cylinder borings, or other metal rings, are pref. applied to the packing before impregnation. The silicone resin is partic. a heat-hardenable poly-addn. silicone, e.g. polymethylvinylsilicone, contg. a Pt catalyst, and contg. less than 5 wt.% of a solvent. The silicone is hardened in situ after impregnation. The method of making the seal is also claimed. Useful esp. as cylinder head packings (claimed) for modern high performance engines. The max. tolerable water pressure is 6-10 bras, compared with the usual 2 bars.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT4972382A IT1149171B (en) | 1982-12-22 | 1982-12-22 | Silicone impregnated packing made from paper - is free from amine and bonded with rubber free from sulphur |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT4972382A IT1149171B (en) | 1982-12-22 | 1982-12-22 | Silicone impregnated packing made from paper - is free from amine and bonded with rubber free from sulphur |
Publications (2)
Publication Number | Publication Date |
---|---|
IT8249723A0 IT8249723A0 (en) | 1982-12-22 |
IT1149171B true IT1149171B (en) | 1986-12-03 |
Family
ID=11271421
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT4972382A IT1149171B (en) | 1982-12-22 | 1982-12-22 | Silicone impregnated packing made from paper - is free from amine and bonded with rubber free from sulphur |
Country Status (1)
Country | Link |
---|---|
IT (1) | IT1149171B (en) |
-
1982
- 1982-12-22 IT IT4972382A patent/IT1149171B/en active
Also Published As
Publication number | Publication date |
---|---|
IT8249723A0 (en) | 1982-12-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
TA | Fee payment date (situation as of event date), data collected since 19931001 |
Effective date: 19971129 |