# US 5,344,855 A · Flame-retardant and its composition

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- Number: US 5,344,855 A
- Document ID: US5344855A
- Status: Granted
- Kind: A
- Application number: 08/085,035
- Filed: 1993-07-02
- Granted: 1994-09-06
- Earliest claimed: 1992-07-08
- Assignees: Chisso Corporation
- Inventors: Noriaki Narita; Masuo Iwata; Kouji Inoue; Hideo Sato; Ryoji Takahashi
- Web page: https://patentgrep.com/patent/US5344855A

## CPC

- C09K 21/12: containing phosphorus
- C08K 3/32: Phosphorus-containing compounds
- C08K 5/3492: Triazines
- C09K: MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C08K: Use of inorganic or non-macromolecular organic substances as compounding ingredients (paints, inks, varnishes, dyes, polishes, adhesives C09)

## Abstract

A flame-retardant consisting of two specified components and a flame-retardant resin composition having the flame-retardant blended with a thermoplastic resin are provided, which flame-retardant is composed of (A) a reaction product of cyanuric chloride with a diamine and (B) ammonium polyphosphate or polyphosphoric acid amide, the ratio of (A) to (B) being 0.1 to 10, and which flame-retardant resin composition has the flame-retardant blended with a thermoplastic resin in a quantity of 1 to 50% by weight based upon the weight of the composition.

## Claims

### Claim 1

A flame-retardant composed of
(A) a reaction product of cyanuric chloride with a diamine and
(B) ammonium polyphosphate or polyphosphoric acid amide,
the ratio by weight of (A) to (B) being 0.15 to 1.

### Claim 2 (depends on 1)

A flame-retardant according to claim 1, wherein said diamine is expressed by the formula
HNR.sub.1 (CH.sub.2).sub.n R.sub.2 NH
wherein n represents an integer of 2 to 6 and R.sub.1 and R.sub.2 each represent H or C.sub.m H.sub.2m+1 wherein m represents an integer of 1 to 3.

### Claim 3 (depends on 1)

A flame-retardant according to claim 1 wherein said diamine is piperazine or a diamine containing piperazine ring.

### Claim 4

A flame-retardant resin composition having a flame-retardant composed of
(A) a reaction product of cyanuric chloride with a diamine and
(B) ammonium polyphosphate or polyphosphoric acid amide,
the ratio by weight of (A) to (B) being 0.15 to 1,
blended with a thermoplastic resin, in a quantity of 1 to 50% by weight based upon the weight of the composition.

### Claim 5 (depends on 4)

A flame-retardant composition according to claim 4 wherein said thermoplastic resin is a polyolefin or its elastomer.