Toughened rubber based hot melt adhesive compositions for disposable applications
CA 1320017 C · Owner: Schmidt, Robert · Inventors: Puletti, Paul; Schmidt, Robert; Raykovitz, Gary
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Hot melt adhesive compositions suitable for disposable constructions are prepared from tackifying resins, oil diluent and a substantially radial styrene-butadiene block copolymer the copolymer having a styrene, content greater than about 35% by weight a modulus at 300% elongation of, at least 4.5 MPa and a solution viscosity less than about 1000 cps.
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 July 6, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 6, 2010.
- 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.