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Machine translation
1. (WO1981002739) BIS-MALEIMIDE RESIN AND COMPOSITES THEREOF
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1981/002739    International Application No.:    PCT/US1981/000307
Publication Date: 01.10.1981 International Filing Date: 06.03.1981
IPC:
C08G 73/12 (2006.01)
Applicants:
Inventors:
Priority Data:
134666 27.03.1980 US
Title (EN) BIS-MALEIMIDE RESIN AND COMPOSITES THEREOF
(FR) RESINE BIS-MALEIMIDE ET SES COMPOSITES
Abstract: front page image
(EN)A novel bisimide matrix resin system comprising 50 to 95 percent by weight of ethylenically unsaturated bis-imides, preferably a low melting mixture of a major portion of maleimides of aromatic amines with a minor portion of maleimide of an aliphatic amine and 5 percent to 35 percent by weight of a diunsaturated low temperature cross-linking agent such as divinyl benzene which gels the bis-imide at low temperatures. This reduces stress between the matrix resin and the surface of the reinforcing fiber, thus reducing the tendency to form microcracks. Microcracking is further reduced and tranverse strength is increased by the addition of 0 to 15% of compatible elastomers to the resin and cross-linking agent. Room temperature tackiness, heat resistance and cross-link density are improved by the presence of 0 to 10% of a trifunctional curing agent.
(FR)Nouveau systeme de resine a matrice bis-imide comprenant entre 50 et 95% en poids de bis-imides a liaison ethylenique non saturee, de preference un melange a bas point de fusion d'une majeure partie de maleimide d'amines aromatiques d'une petite portion de maleimide d'une amine aliphatique et entre 5 et 35% en poids d'un agent de reticulation a basse temperature de double insaturation telle que le divinyle benzene qui gelifie le bis-imide aux basses temperatures. Cela permet de reduire les contraintes entre la resine de la matrice et la surface de la fibre de renforcement, reduisant ainsi la tendance a la formation de micro-fissures. La formation de micro-fissures est reduite encore plus et la resistance transversale est augmentee par addition de 0 a 15% d'elastomeres compatibles avec la resine et l'agent de reticulation. La viscosite a temperature ambiante, la resistance thermique et la densite de reticulation sont ameliorees par la presence de 0 a 10% d'un agent de polymerisation trifonctionnel.
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)