CA Patent

CA1297218C — Thermally stable diphosphonate-type flame retardant additive for plastics

Assigned to ICL IP America Inc · Expires 1992-03-10 · 34y expired

What this patent protects

ABSTRACT OF THE DISCLOSURE Flame retardant plastic compositions are prepared by incorporating into a polymer from 1-30% by weight of a flame retardant having the structural formula: This class of flame retardant shows exceptional high temperature st…

USPTO Abstract

ABSTRACT OF THE DISCLOSURE Flame retardant plastic compositions are prepared by incorporating into a polymer from 1-30% by weight of a flame retardant having the structural formula: This class of flame retardant shows exceptional high temperature stability and permits incorporation of the flame retardant into the polymer by hot milling at temperatures up to about 350°C.

Drugs covered by this patent

Patent Metadata

Patent number
CA1297218C
Jurisdiction
CA
Classification
—
Expires
1992-03-10
Drug substance claim
No
Drug product claim
No
Assignee
ICL IP America Inc
Source
FDA Orange Book + USPTO grounding via Google Patents

Bibliographic data sourced from FDA Orange Book + USPTO public records. Plain-English summary generated by AI grounded in source text. Patent term extensions (PTR, SPC, pediatric) may shift the effective expiry. Not legal advice.

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