US 7,064,157 B2 · Flame retardant resin and flame retardant composition containing the same

Abstract

The present invention relates to a phosphorus-containing epoxy resin, which is an epoxy resin modified with a side chain having a reactive phosphorus-containing compound. Also, the present invention relates to a flame-retardant resin composition, which comprises: (1) the phosphorus-containing epoxy resin, (2) a halogen-free hardener having a reactive hydrogen capable of reacting with the epoxy group in epoxy resin, and (3) a hardener promoter. The flame-retardant resin composition described above has improved excellent heat resistance and flame retardant property, and is especially suitable for adhesive laminates, composite materials, printed circuit boards, adhesive material for copper foils, and is suitable for IC packaging materials.

Claims20

Dependent claims

A phosphorus-containing epoxy resin having the formula (A):

wherein R5 is selected from —O—, —NH—, —S—, —COO—, —SO3—, —CO—, and —CH3CON< group;
Ar1 and Ar2 are independently selected from the moieties as follows:
R6 is H, C1-10 alkyl or aryl;
R7 is —CH2—, —(CH3)2C—, —SO2—, —CO—, —O—;
R8 is —OH, —NH2, —SH, —COOH, —SO3H, —COH, or —NHCOCH3;
m and n are integers from 0 to 4;
z is an integer from 1 to 20;
Epoxy- is a group containing at least one epoxy group.

5 more elements

Dependencies are inferred from the claim text.

Flame retardant resin and flame retardant composition containing the same

Life of this patent

Flame retardant resin and flame retardant composition containing the same

Life of this patent

Abstract

Claims20