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US 5,472,995 AGranted
Asbestos-free gaskets and the like containing blends of organic fibrous and particulate components
AssigneeCytec Technology Corp.
InventorsStanley S. Kaminski, Robert E. Evans
Life of this patent
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Abstract
Improved asbestos-free fiber reinforced material for use in the manufacture of gaskets, and the like, comprises (a) an elastomeric binder material and (b) a blend of fibrillated, organic, synthetic polymer, organic synthetic polymer staple and organic synthetic, soluble polymer particles so as to enhance the strength of the gaskets, shock mountings, timing belts, sealants, and the like, made from such materials.
Claims21
An asbestos-free fiber reinforced material comprising:
- (a) an elastomeric matrix composition;
- and
- (b) an effective reinforcing amount of blend comprising:
- 1) from about 5 to about 75 weight percent of a fibrillated, synthetic, organic polymer fiber;
- 2) from about 20 to about 90 weight percent of a synthetic, organic polymer staple fiber;
- and
- 3) from about 5 to about 30 weight percent of synthetic, non-thermosetting organic polymer particles
- so to provide enhanced properties to gaskets, tires, timing belts, power transmission complings, shock absorbers, sealants and the like made therefrom.
5 more elements
An asbestos-free composition adapted for use in gaskets, said composition comprising:
- (a) an curable elastomeric resin and a curative therefore, alone, or in further combination with:
- (i) a pigment,
- (ii) a dye,
- (iii) a heat stabilizer,
- (iv) an antioxidant,
- (v) a plasticizer,
- (vi) a lubricant,
- (vii) a UV-stabilizer,
- (viii) a flame-retardant agent,
- (ix) a processing aid,
- (x) a foaming agent,
- (xi) a filler,
- (xii) non-acrylic organic fibers and pulps,
- (xiii) inorganic fibers selected from glass, ceramic, mineral fibers, and the like, or
- (xi) a mixture of any of the foregoing, and
- (b) an effective concentration of a reinforcement for said composition, said reinforcement comprising:
- 1) from about 5 to about 75 weight percent of a fibrillated, synthetic, organic polymer fiber;
- 2) from about 20 to about 90 weight percent of a synthetic, organic polymer staple fiber;
- and
- 3) from about 5 to about 30 weight percent of synthetic, non-thermosetting organic polymer particle.
17 more elements
A dry blend comprising:
- a) from about 5 to about 75 weight percent of a fibrillated, acrylic or aramid polymer fiber;
- b) from about 20 to about 90 weight percent of an acrylic or aramid polymer staple fiber and
- c) from about 5 to about 30 weight percent of soluble, acrylic or aramid polymer particles.
Dependencies are inferred from the claim text.