Block copolymer hot melt adhesive composition and method for filling cavity therewith
CA 1135434 A · Owner: Martins, Joseph G. · Inventors: Martins, Joseph G.; Donermeyer, Donald D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Hot melt adhesive compositions comprising a block copolymer, aluminum powder and glass fiber. The block copolymer is selected from the group consisting of copolyesters copolyamides, copoly(esteramides) and copoly(ether-esters) melting at a temperature above about 150°C. and having from about 30 to about 70 weight percent of hard segments and from about 70 to about 30 weight percent of soft segments. The weight ratio of block copolymer to aluminum powder and glass fiber is in the range of about 3:7 to about 3:2 the weight, ratio of block copolymer to glass fiber is at least about 2:1 and the weight ratio of glass fiber to aluminum powder is at least about 1:9. The compositions are …
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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 November 9, 1982. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 9, 1999.
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.