Pasty damping agent dispersion
OwnerKaspar Lochnerinventor
Life of this patent
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Abstract
A damping agent for damping mechanical and/or acoustical vibrations. The agent includes a fluid phase of a polyglycol, silicone oil, mineral oil, and/or a saturated aliphatic or aromatic carboxylic acid ester having graphite dispersed therein. The graphite is dispersed by means of a wetting agent. Anti-oxidants and an agent to stabilize the structural viscosity of the damping agent may also be included.
Claims34
A pasty-like damping medium dispersion for damping mechanical and acoustical vibrations and consisting essentially of:
- (1) a fluid phase selected from the group consisting of polyethylene glycols, polypropylene glycols, polybutylene glycols and saturated aliphatic and aromatic carboxylic acid esters;
- (2) ground graphite having a leaf-shaped and/or spherical structure and a particle size of less than 100.mu. and being present in an amount of 40-60% by weight relative to the total weight of the dispersion;
- (3) a wetting agent for the graphite in an amount of 0.5-6% by weight relative to the total weight of the dispersion;
- and
- (4) a viscosity stabilizer selected from the group consisting of an aluminum silicate and/or silicon dioxide and being employed in an amount of 0.5-5% by weight relative to the total weight of the dispersion;
- said dispersion having a viscosity of (1-4).times.10.sup.6 cP at 25.degree. C. and being self-sealing.
In a method of damping mechanical and acoustical vibrations employing a damping device having a chamber containing a damping medium, the improvement comrising employing as the damping medium a pasty-like damping medium dispersion consisting essentially of:
- (1) a fluid phase selected from the group consisting of polyethylene glycols, polypropylene glycols, polybutylene glycols and saturated aliphatic and aromatic carboxylic acid esters;
- (2) ground graphite having a leaf-shaped and/or spherical structure and a particle size of less than 100.mu. and being present in an amount of 40-60% by weight relative to the total weight of the dispersion;
- (3) a wetting agent for the graphite in an amount of 0.5-6% by weight relative to the total weight of the dispersion;
- and
- (4) a viscosity stabilizer selected from the group consisting of an aluminum silicate and/or silicon dioxide and being employed in an amount of 0.5-5% by weight relative to the total weight of the dispersion;
- said dispersion having a viscosity of (1-4).times.10.sup.6 cP at 25.degree. C. and being self-sealing.
Dependencies are inferred from the claim text.