US 10,870,728 B2Granted

Phthalonitrile resin

AssigneeLG Chem, Ltd.

InventorsKi Ho Ahn, Sang Woo Kim, Seung Hee Lee

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Abstract

The present application relates to a phthalonitrile resin and the like. The present application can provide a phthalonitrile resin, and a polymerizable composition and prepolymer using the same, which can exhibit excellent curability, a suitable processing temperature and a wide process window, and form a composite having excellent physical properties. Also, according to the present invention, there may be provided a phthalonitrile resin, and a polymerizable composition and prepolymer using the same, which can exhibit appropriate viscosity characteristics and thus provide a final product without deterioration of mechanical physical properties or the like due to bubbles generated during processing.

Claims7

Dependent claims

A phthalonitrile resin comprising a polymerized unit derived from a compound of Formula 1 below and an aromatic amine compound, wherein a processing temperature of a mixture comprising the compound of Formula 1 and the aromatic amine compound is 100° C. to 250° C., the processing temperature being a melting temperature or a glass transition temperature of the mixture, and wherein an absolute value of the difference between the processing temperature and a curing temperature of the mixture is 50° C. or higher:

wherein in Formula 1, Ar1 and Ar2 are aromatic divalent radicals derived from an aromatic compound represented by Formula 2 below, X1 and X2 are oxygen atoms, and R1 to R10 are each independently hydrogen, an alkyl group having 1 to 4 carbon atom(s) or a cyano group, provided that at least two of R1 to R5 are each a cyano group and at least two of R6 to R10 are each a cyano group;
wherein in Formula 2, one of R1 and R4 of Formula 2 forms a radical linked to the sulfur atom (S) of Formula 1, and the other of R1 and R4 of Formula 2 forms a radical linked to X1 or X2 of Formula 1, and R2, R3, R5 and R6 of Formula 2 are each independently hydrogen or an alkyl group having 1 to 4 carbon atom(s).

Dependencies are inferred from the claim text.

Facts

Application: 15/739,263Filed 1 Jul 2016
Priority: KR 10-2015-00943571 Jul 2015
Published: US 2018/0194895 A112 Jul 2018
Granted: 22 Dec 2020
Term ends: Not estimatedThe source records don’t support an estimate.

Classification12 codes

C08G 65/333
With organic compounds: containing nitrogen
C08G 73/0672
Polycondensates containing five-membered rings, condensed with other rings, with nitrogen atoms as the only ring hetero atoms: with only one…
C08G 75/0222
Containing elements other than carbon, hydrogen or sulfur: containing nitrogen
C08K 3/00
Use of inorganic substances as compounding ingredients

Family

US 2018/0194895 A1Pre-grant publication · published 12 Jul 2018
US 10,870,728 B2This patent

From the US filing history. Foreign family members aren’t listed.

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