##STR2## wherein R4 is an alkyl or alkylene group or an aryl or arylene group; R2 and R3, which can...http://www.google.com/patents/US6103380?utm_source=gb-gplus-sharePatent US6103380 - Particle having an attached halide group and methods of making the sameAdvanced Patent SearchPublication numberUS6103380 APublication typeGrantApplication numberUS 09/089,263Publication dateAug 15, 2000Filing date