Composition and use
CA 1339941 C · Owner: Imperial Chemical Industries Plc · Inventors: Bath, Colin
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A composition comprises a carboxylic acid compound which contains at least three carbon atoms together with an organic sulphur-containing acid or salt of such an acid. The carboxylic acid may be an aliphatic diacid such as succinic acid. The sulphur-containing acid may be a sulphonic or sulphuric acid derivative such as the sodium salt of an alkyl sulphonic acid or of sulpho-succinic acid or of a carboxylic acid ester derivative of sulpho-succinic acid. The composition may be incorporated into an olefin polymer. The composition may be obtained by conventional powder blending or, for a polymer composition melt blending, techniques. Preferred polymer compositions have an increased clarity and …
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 7, 1998. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 7, 2015.
- 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.