Fiber filter and stabilizer formulation
CA 1260408 A · Owner: Hercules Incorporated · Inventors: Class, Jay B.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Fiber Filter and Stabilizer Formulation Abstract of Disclosure, A resin-modified fiber filter formulation fiber filter, element, and method for improving dimensional stability firm-, ness and resiliency of a polyolefin fiber filter element comprised of crimped polyolefin fiber tow by contacting filaments, thereof with a formulation comprising a blend of resin and base polymer emulsions as precursors forming the active formulation "in situ", at a convenient station by removing water the solid, resin component of which must have a low molecular weight and approved softening temperature range to obtain the desired characteristics.
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 September 26, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 26, 2006.
- 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.