Tyre balancing composition
CA 1330254 C · Owner: Everbalance Ag · Inventors: Ronlan, Alvin
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A thixotropic tyre balancing composition having a yield stress value between 30 Pa and 260 Pa, preferably about 120 Pa, is capable of balancing tyres by being able to flow under the influence of the vibrations induced when a heavy spot on the tyre hits 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)-CH2-O)n-H wherein R is hydrogen or C1-2 alkyl and n is an integer from 1 to 4.
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted June 21, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 21, 2011.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.