Patents Assigned to Alber Corporation
  • Patent number: 4867792
    Abstract: A thixotropic tire balancing composition having a yield stress value between 30 Pa and 260 Pa, preferably about 120 Pa, is capable of balancing air by being capable of flowing under the influence of the vibrations induced when a heavy spot on the tire contacts the road surface. The composition preferably comprises a mixture of: (1) a liquid di- or trihydric alcohol or a di-, tri-, or tetrameric oligomer thereof, optionally containing water; (2) a polymer soluble or dispersible in the alcohol; (3) hydrophilic fibers; and, optionally, ( 4) a hydrophilic filler. The alcohol 1) is preferably a diol of the general formula HO-(CH(R)-CH.sub.2 -O).sub.n -H wherein R is hydrogen or C.sub.1-2 alkyl and n is an integer from 1 to 4.
    Type: Grant
    Filed: February 5, 1988
    Date of Patent: September 19, 1989
    Assignee: Alber Corporation
    Inventor: Alvin Ronlan