Bioderived monomers for the generation of polybenzoxazine thermosets and thermoplastics
US-2024343698-A1 · Oct 17, 2024 · US
US2016297779A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016297779-A1 |
| Application number | US-201615072416-A |
| Country | US |
| Kind code | A1 |
| Filing date | Mar 17, 2016 |
| Priority date | Apr 10, 2015 |
| Publication date | Oct 13, 2016 |
| Grant date | — |
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The present disclosure is to provide a modified oxazine compound and use of a composition comprising the same.
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1 . A modified oxazine compound having a structure represented by the following formula (1) or formula (2): wherein R is an aliphatic hydrocarbyl group or an aryl group; R′ is selected from the group consisting of imino, allyl, a C 1 -C 20 aliphatic hydrocarbyl group, dicyclopentadienyl, and an aryl group; A is selected from the group consisting of —CH 2 —, —CH(CH 3 )—, and —C(CH 3 ) 2 — and is the same or different at each occurrence; B is an arylene group; m is 0 to 4; n is 0 to 1; and a1, a2, a3 and b are each independently 0 or 1. 2 . The modified benzoxazine compound as claimed in claim 1 , which is selected from the group consisting of formula (6), formula (7), formula (8), formula (9), and formula (10): 3 . A method of producing a modified benzoxazine compound comprising: reacting a phthalaldehyde compound with an aminophenol compound in a solvent to form an azomethine group-containing phenol compound; and reacting the azomethine group-containing phenol compound with a primary amine and formaldehyde. 4 . The method as claimed in claim 3 , wherein the phthalaldehyde compound is one represented by formula (3): wherein R is an aliphatic hydrocarbyl group or an aryl group; A is selected from the group consisting of —CH 2 —, —CH(CH 3 )—, and —C(CH 3 ) 2 — and is the same or different at each occurrence; B is an arylene group; m is 0 to 4; and a1, a2, a3 and b are each independently 0 or 1. 5 . The method as claimed in claim 3 , wherein the aminophenol compound is one represented by formula (4) or formula (5): wherein R are each independently hydrogen, an aliphatic hydrocarbyl group or an aryl group; A is selected from the group consisting of —CH 2 —, —CH(CH 3 )—, —C(CH 3 ) 2 —, an aliphatic hydrocarbylene group, and an arylene group; and n is 0 or 1. 6 . The method as claimed in claim 3 , wherein the primary amine is one having a general formula: R′NH 2 , wherein R′ is selected from the group consisting of imino, allyl, a C 1 -C 20 aliphatic hydrocarbyl group, dicyclopentadienyl, and an aryl group. 7 . A resin composition, comprising: (A) a modified oxazine compound according to claim 1 or a prepolymer thereof or a mixture thereof; and (B) a crosslinking agent. 8 . The resin composition as claimed in claim 7 , wherein the crosslinking agent (B) is selected from the group consisting of an epoxy resin, a cyanate resin, isocyanate, a polyphenylene oxide resin, maleimide, a polyamide, a polyimide, a phenoxy resin, a styrene-maleic anhydride copolymer, a polyester, a polyolefin, a phenol resin, an amine-based curing agent, an anhydride-based curing agent, diallyl bisphenol A, and a combination thereof. 9 . The resin composition as claimed in claim 7 , further comprising a modifier selected from the group consisting of flame retardant, curing accelerator, inorganic filler, surfactant, solvent, and toughening agent. 10 . An article made from the resin composition according to claims 7 , wherein the article is a resin film, a prepreg, a laminate or a printed circuit board.
with vinyl aromatic monomers · CPC title
Copolymers with vinyl aromatic monomers · CPC title
with only hydrogen or carbon atoms directly attached in positions 2 and 4 · CPC title
Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors · CPC title
condensed with carbocyclic rings or ring systems · CPC title
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