Composition for wetting and encapsulating asbestos and method of using
CA 1339293 C · Owner: H.B. Fuller Company · Inventors: Batdorf, Vern Harland
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A substantially nonthixotropic composition capable of minimizing the amount of airborne asbestos particles released during removal of asbestos from a structural unit and encapsulating the removed asbestos to permanently prevent the release of airborne asbestos particles. The composition includes (i) a major proportion of water (ii), a nonionic-surfactant-stabilized latex such as a latex of, styrene butyl rubber having a viscosity of less than about, 300 cps and a maximum particle size of less than about 0.4 microns, (iii) sufficient nonionic surfactant to reduce the surface tension of the composition to less than about 40 dynes per cm, and (iv) a cationic surfactant. Optionally the …
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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 August 19, 1997. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 19, 2014.
- 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.