| 摘要 |
Resin compositions, e.g., epoxy resin compositions, comprising flame retardant materials obtained by heating phosphonic acid salts at temperatures above 200° C., have excellent properties and exhibit manageable curing behavior. Laminates, composites, molded articles and the like, which have excellent flame retardant properties and physical characteristics, are readily prepared from the resin compositions of the invention. |
| 主权项 |
1. A flame retardant epoxy resin composition comprising
a) an epoxy resin, b) from 1% to 60%, by weight based on the total weight of the flame retardant epoxy resin composition, of a flame retardant material obtained by a process comprising heating at temperatures of about 200° C. or higher from about 0.01 hour to about 20 hours one or more than one compound of formula (I) wherein
R is C1-12 alkyl, C6-10 aryl, C7-15 alkylaryl, or C7-15 arylalkyl, wherein said alkyl, aryl, alkylaryl, or arylalkyl are unsubstituted or are substituted by halogen, hydroxyl, amino, C1-4 alkylamino, di-C1-4 alkylamino, C1-4 alkoxy, carboxy or C2-5 alkoxycarbonyl;M is a metal,y is a number of from 1 to 4 so that M(+)y is a metal cation where (+)y represents the charge formally assigned to the cation, and p is a number of from 1 to 4, and c) a curing agent. |
