Gel or gelloid liquid-extended polymer compositions
CA 1317047 C · Owner: Raychem Limited · Inventors: Overbergh, Noel Marcel Michiel; Francis, Jane Valerie; Vansant, Jan Lodewijk M. F. G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
RK308, ABSTRACT, "GELS", A gel or gelloid liquid-extended polymer composition having (i) an ASTM D217 cone penetration value within the range from 100 to 400 (10-1 millimetres), (ii) an ASTM D412 ultimate elongation greater than 100% with substantially elastic deformation to an elongation of at least 100% (iii) an, ASTM D412 ultimate tensile strength of less than 1 MegaPascal, and (iv) a dynamic storage modulus at 23°C of less than 50000 Pascals; the composition comprising an intimate mixture of, (a) mainly a block copolymer containing relatively hard blocks and relatively elastomeric blocks; (b) additional polymer or copolymer material having at least partial compatibility with, and a …
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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 April 27, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 27, 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.