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US 12,565,563 B2Granted
Halogen-free synergist
AssigneeAgency for Science, Technology and Research
InventorsJunhua Kong, Songlin Liu, Suxi Wang, Qi Feng Lim, Beng Hoon Maureen Janet Tan, Chaobin He
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Abstract
A polymer having a backbone and a side unit of 9,10-dihydro-9-oxa-10-phosphaphenanthrene 10-oxide bonded thereto, where the backbone of the polymer includes at least one heterocyclic moiety. There is also provided a process for producing the polymer as defined herein as well as a flame retardant polyolefin formulation including the polymer as defined herein and a moulded article including the flame retardant polyolefin formulation as defined herein.
Claims18
A flame retardant polyolefin composition comprising:
- a polyolefin matrix, a polymer, and an inorganic flame retardant,
- wherein the polymer is blended with the inorganic flame retardant in a weight ratio of 1:3 to 1:4,
- wherein the polymer has a backbone and a side unit of 9,10-dihydro-9-oxa-10-phosphaphenanthrene 10-oxide bonded thereto, wherein the backbone of the polymer comprises at least one heterocyclic moiety.
Dependencies are inferred from the claim text.