Coated substrates
CA 1305274 C · Owner: De Beer, Lex · Inventors: De Beer, Lex; Claassen, Peter Joseph Maria Wilhelmus
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A consolidated web may be produced by impregnating it with a compound of latex of a polymer comprising from about 10 to about 45 weight percent of a C3-6 alkenyl nitrile; from about 36 to 85 weight percent of a C4-6 conjugated diolefin; from about 5 to 20 weight percent of a monomer mixture comprising from 100 to about 60 percent of a C8-12 vinyl aromatic monomer which may be unsubstituted or substituted by a C1-4 alkenyl radical or a chlorine or bromine atom; from 0 to 40 weight percent of a C1-2 alkyl ester of acrylic or methacrylic acid; from about 0.5 to 10 weight percent of at least one, C3-6 ethylenically unsaturated carboxylic acid; and from about 0.1 to 5 weight percent of an N-C1-4 …
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 July 14, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 14, 2009.
- 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.