Polyacetylinic oligomers suitable for high-temperature polymer-matrix composites are provided. The polyacetylinic oligomers have the formula:
D-A-D
wherein
D is an endcap including at least one crosslinking functionality; and
A is backbone selected from the group consisting of imidesulfone; ether; ethersulfone; amide; imide; ester; estersulfone; etherimide; amideimide; oxazole; oxazole sulfone; thiazole; thiazole sulfone; imidazole; and imidazole sulfone. At least one ethynyl functional group, however, is incorporated into the backbone such that crosslinking is not only realized at the endcaps but also at the ethynyl groups within the backbone of the oligomer itself.
PREPREGS AND CARBON FIBER-REINFORCED COMPOSITE MATERIAL
申请人:TORAY INDUSTRIES, INC.
公开号:EP0750004B1
公开(公告)日:2004-07-07
HIGH CHAR YIELD BENZOXAZINES
申请人:Edison Polymer Innovation Corporation
公开号:EP1027341A1
公开(公告)日:2000-08-16
EP1027341A4
申请人:——
公开号:EP1027341A4
公开(公告)日:2000-12-20
WATER-ENTRAINED-POLYIMIDE CHEMICAL COMPOSITIONS FOR USE IN HIGH-PERFORMANCE COMPOSITE FABRICATION
申请人:Lubowitz Hyman Ralph
公开号:US20080300360A1
公开(公告)日:2008-12-04
Water-entrained compositions comprising colloidal or suspensoidal solutions comprising polyimide pre-polymers/oligomers are described. These compositions are obtained in water by initial dispersion of the resin constituents in water to from colloids or suspensoids. The water-entrained polyimide compositions can be applied to numerous surfaces or more beneficially used for composite fabrication. The coated surfaces or polyimide-pre-polymer impregnated reinforcing materials are subsequently cured and are ideal for providing thermal protection.