发明名称 |
Method for preparing phosphorus-containing polyphenylene oxide resin with low molecular weight |
摘要 |
Disclosed is a method for preparing a phosphorus-containing polyphenylene oxide resin with a low molecular weight, comprising the steps of: step 1: providing a phosphorus-containing phenolic compound and a raw polyphenylene oxide resin having a number-average molecular weight of more than 10000; step 2: dissolving the raw polyphenylene oxide resin into a solvent to make a solution of the raw polyphenylene oxide resin; step 3: adding the phosphorus-containing phenolic compound into the solution of the raw polyphenylene oxide resin; step 4: introducing an initiator, and carrying out a re-dispersing reaction at a reaction temperature of above 60° C. under the effect of the initiator; and step 5: after the reaction is finished, the product obtained being phosphorus-containing polyphenylene oxide resin with a low molecular weight, the number-average molecular weight thereof being 1000-6000. By dispersing the phosphorus-containing phenolic compound into the solution of polyphenylene oxide resin, and carrying out the re-dispersing reaction in the presence of the initiator to prepare the phosphorus-containing polyphenylene oxide resin with a low molecular weight, the obtained phosphorus-containing polyphenylene oxide resin with a low molecular weight is convenient to process, and suitable for use as the matrix resin of composite materials for high-frequency circuit boards or as an additive component for other polymeric materials. |
申请公布号 |
US8889816(B2) |
申请公布日期 |
2014.11.18 |
申请号 |
US201114236109 |
申请日期 |
2011.12.29 |
申请人 |
Shengyi Technology Co., Ltd. |
发明人 |
Meng Yundong;Fang Kehong |
分类号 |
C08G79/02;H05K1/03;C08G65/48;H05K1/02 |
主分类号 |
C08G79/02 |
代理机构 |
McDonald Hopkins LLC |
代理人 |
McDonald Hopkins LLC |
主权项 |
1. A method for preparing phosphorus-containing polyphenylene oxide resin with low molecular weight, comprising the steps of:
step 1: providing a phosphorus-containing phenolic compound and a raw polyphenylene oxide resin having a number-average molecular weight of more than 10000; step 2: dissolving the raw polyphenylene oxide resin into a solvent to make a solution of the raw polyphenylene oxide resin; step 3: adding the phosphorus-containing phenolic compound into the solution of the raw polyphenylene oxide resin; step 4: introducing an initiator, and carrying out a re-dispersing reaction at a reaction temperature of above 60° C. under the effect of the initiator; and step 5: after the reaction is finished, the product obtained being phosphorus-containing polyphenylene oxide resin with a low molecular weight, the number-average molecular weight thereof being 1000-6000. |
地址 |
Guangdong CN |