Quaternary alkylamino-di-alkylcarboxylic acid di- esters, process for their manufacture and their use
CA 1163275 A · Owner: Hoechst Aktiengesellschaft · Inventors: Bucking, Hans-Walter; Wagemann, Wolfgang; May, Adolf
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Quaternary alkylamino-di-alkylcarboxylic acid di-esters of the formula, (1), wherein R1 and R2 are alkyl or hydroxyalkyl with 1 to 4 C-atoms or benzyl, R3 and R4 are hydrogen or methyl R5 and R6 are alkyl, or alkenyl with from 8 to 24 C-atoms m and n are numbers from, 1 to 4, o and p are numbers from 0 to 10 and X is an anion, process for their manufacture and their use as fabric softener.
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 March 6, 1984. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 6, 2001.
- 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.