Phosphorus-containing compound and curing epoxy resin composition containing same

Patent metadata

Field	Value
Publication number	US-9738667-B2
Application number	US-201414915766-A
Country	US
Kind code	B2
Filing date	Nov 10, 2014
Priority date	Oct 1, 2013
Publication date	Aug 22, 2017
Grant date	Aug 22, 2017

Abstract

Provided is a novel phosphorus-containing compound represented by general formula (I). The compound has reactivity with a glycidyl group and is therefore capable of providing a curing epoxy resin composition that is expected to achieve flame retardation and reduction of dielectric constant.

wherein m is a number of 1 to 10; R 1 , R 2 , R 3 , and R 4 are each hydrogen, alkyl, or aryl; R 5 is alkyl, alkanediyl, alkanetriyl, alkanetetrayl, or an aromatic group; X is oxygen or sulfur; Y is oxygen, sulfur, or ═NR′; and R′ is hydrogen, alkyl, or aryl.

First claim

The invention claimed is:

1. A phosphorus-containing compound represented by general formula (I):

wherein m represents 1 or 2;
R 1 , R 2 , R 3 , and R 4 each independently represent a hydrogen atom, or an alkyl group;
when m is 1, R 5 is represented by formula (1′),
when m is 2, R 5 is represented by one of formulae (2′) or (3′);
X represents an oxygen atom or a sulfur atom; and
Y represents an oxygen atom, or a sulfur atom;

wherein R 6 represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms; O represents an integer of 1 to 3; p represents an integer of 0 to 50;
wherein Z is represented by formula (i′)

wherein R 1 , R 2 , R 3 , R 4 , X, and Y are as defined above;
R 7 is represented by formula (ii′)

wherein R 8 and R 9 each represent a hydrogen atom, CH 3 , or CF 3 ;

wherein n is 2.

2. The phosphorus-containing compound according to claim 1 , wherein R 1 , R 2 , R 3 , and R 4 each independently represent an alkyl group having 1 to 5 carbon atoms, and X and Y each represent an oxygen atom.

3. An epoxy resin curing agent comprising 5% to 100% by mass of the phosphorus-containing compound according to claim 1 .

4. A curing epoxy resin composition comprising an epoxy resin and the epoxy resin curing agent according to claim 3 .

5. An epoxy resin curing agent comprising 5% to 100% by mass of the phosphorus-containing compound according to claim 2 .

6. The phosphorus-containing compound according to claim 1 , selected from the group consisting of:

Assignees

• Adeka Corp

Inventors

• Endo Takeshi
• Matsumoto Kozo
• Tamaso Ken-Ichi
• Ogawa Ryo

Classifications

• C07F9/242 Primary

  of hydroxyaryl compounds · CPC title

• C08G59/446

  Phosphoramides · CPC title

• C07F9/2404

  the ester moiety containing a substituent or a structure which is considered as characteristic · CPC title

• C08G59/1488

  containing phosphorus · CPC title

• C07F9/224

  Phosphorus triamides · CPC title