Phosphorus compound and method for preparing the same
AssigneeChangChun Plastics Co., Ltd.
InventorsI-Cheng Hsu, Ping-Chieh Wang, An-Pang Tu, Kuen-Yuan Hwang
Life of this patent
Estimating the term…
Abstract
The present invention provides a phosphorus compound of formula (I). The phosphorus compound is prepared by reacting a compound of formula (II) with alkylene carbonate. As compared with the conventional phosphorus compounds as flame-resistant additives, the phosphorus compound of the present invention has not only a high pyrolysis temperature but also excellent solubility in most of the organic solvents with high or low polarity, and is therefore a suitable flame-resistant additive for use in thermosetting or thermoplastic resins.
Claims6
A phosphorus compound of formula (I):
- wherein R is a trivalent alkane group having 1 to 6 carbon atoms, and Ar is phenylene or naphthalene, and m and n are independently an integer of 1 to 5.
A method for preparing the phosphorus compound having a structure represented by formula (I),
- wherein R is a trivalent alkane group having 1 to 6 carbon atoms, and Ar is phenylene or naphthalene, and m and n are independently an integer of 1 to 5;
- the method comprising the steps of:
- reacting a compound of formula (II) with alkylene carbonate or alkylene oxide in a solvent under heating,
- drying to remove the solvent and recover a product.
Dependencies are inferred from the claim text.