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US 8,841,388 B2Granted
Monofunctional, bifunctional, and multifunctional phosphinated phenols and their derivatives and preparation method thereof
AssigneeNational Chung Hsing University
InventorsChing-Hsuan Lin, Yu-Wei Tian
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Abstract
The present invention provides novel phosphinated compounds of monofunctional, bifunctional, multifunctional phenols represented by the following formulae and their derivatives, and preparation methods thereof:
Claims16
A phosphinated compound of multifunctional phenol of formula:
- wherein R0 is independently H, C1-C6 alkyl, C3-C5 cycloalkyl, F, Cl, Br or I, and n is an integer of 1 to 10.
A method for preparing a multifunctional phosphinated phenol, comprising:
- in the presence of an acid catalyst, reacting a DOPO compound having the following formula
- with a compound selected from the phenolic compound of the following formula:
- wherein is independently H, C1-C6 alkyl, C3-C6 cycloalkyl, F, Cl, Br or I, and m is an integer of 1 to 10.
A P-BPN derivative having the following formula
- wherein R0 is H, C1-C6 alkyl, C3-C5 cycloalkyl, F, Cl, Br or I, and n is an integer of 1 to 10.
A preparation method of a novel P-BPN derivative, wherein the derivatives is an epoxy resin derivative (P-BPN-EP), or a cyanate derivative (P-BPN-OCN), and the chemical reactions are as shown below
- wherein R0 is H, C1-C6 alkyl, C3-C5 cycloalkyl, F, Cl, Br or I, and n is an integer of 1 to 10.
Dependencies are inferred from the claim text.