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1.发明授权
公开(公告)号：US3767611A
公开(公告)日：1973-10-23
申请号：US3767611D
申请日：1972-02-10
Applicant: NAT RES DEV
Inventor： PARKER B
CPC classification number: C08J5/24 , C08J2365/00 , Y10T428/2918 , Y10T442/2984
Abstract: A PROCESS OF PRODUCTING A SOLUBLE FUSIBLE PRE-POLYMER IS DESCRIBED IN WHICH AT LEAST ONE OF TOLUENE AND XYLENE IS REACTED WITH P-XYLYLENEGLYCOL DIMETHYL ETHER IN THE PRESENCE OF A MILD FRIEDEL-CRAFTS TYPE CATALYST SO THAT THE TOLUENE AND/OR XYLENE REACT WITH THE P-XYLYLENEGLYCOL DIMETHYL ETHER WITH THE ELIMINATION OF METHANOL, THE REACTION BEING ALLOWED TO PROCEED ALMOST TO THE GELATION POINT. THE PRE-POLYMERS PRODUCED ARE PARTICULARLY SUITABLE FOR MAKING CARBON FIBRE REINFORCED PLASTICS MATERIALS.
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