Flame-retardant styrene resin composition
CA 1298020 C · Owner: Inagaki, Teruo · Inventors: Atomori, Seiichi; Inagaki, Teruo; Yamamoto, Yuji
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A flame-retardant styrene resin composition comprising 100 parts by weight of a styrene resin 1, to 25 parts by weight of at least one flame retarder (A) represented by the formula (I):, (I) wherein X is Br or Cl; and each of h and i is an integer of 2 to 5, and 1 to 25 parts by weight of at least one flame retarder (B) represented by the formula (II): (II), wherein X is Br or Cl; each of ? and m is an integer of 1 to 4; n means that the number of repeating units is 1 to 50; each of R1 and R2 is a C1-12alkyl group; and each of R3 and R4 is a hydrogen atom a lower, alkyl group, an alkylphenyl group or a phenyl group the, total amount of (A) and (B) being 2 to 40 parts by weight. This …
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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 March 24, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 24, 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.