Abstract: A package of tape including a plurality of body portions. Each body portion is formed as a series of steps, each step including a plurality of turns of tape that are wrapped about a core. During formation of each step, the winding position of the tape is varied. In one embodiment, the winding position of the tape is oscillated a fraction of the width of the tape per revolution of the core, or during a revolution of the core. In an alternative embodiment, the winding position of the tape is varied by a fraction of the width of the tape in a first direction after each approximately full turn of tape. During formation of an immediately adjacent step in the same body portion, the winding position of the tape is varied by a fraction of the width of the tape in a second direction, opposite the first direction.

Abstract: A package of tape including a plurality of body portions. Each body portion is formed as a series of steps, each step including a plurality of turns of tape that are wrapped about a core. During formation of each step, the winding position of the tape is varied. In one embodiment, the winding position of the tape is oscillated a fraction of the width of the tape per revolution of the core, or during a revolution of the core. In an alternative embodiment, the winding position of the tape is varied by a fraction of the width of the tape in a first direction after each approximately full turn of tape. During formation of an immediately adjacent step in the same body portion, the winding position of the tape is varied by a fraction of the width of the tape in a second direction, opposite the first direction.

Abstract: A compound of formula (I): ##STR1## where E is oxygen or sulphur; A is CR.sup.3 or N where R.sup.3 is hydrogen or hydrocarbyl; D completes a 5 or 6-membered non-aromatic heterocyclic ring which optionally contains additional heteroatoms selected from oxygen, nitrogen or sulphur and which is optionally substituted by an optionally substituted lower hydrocarbyl group, or an optionally substituted heteroaryl group; R.sup.1 and R.sup.2 are each independently hydrogen; optionally substituted lower hydrocarbyl, or optionally substituted heteroaryl, or R.sup.1 and R.sup.2 together with the nitrogen atom to which they are attached, form a heterocyclic ring; Z represents halogen optionally substituted lower hydrocarbyl, optionally substituted lower hydocarbyloxy, optionally substituted lower hydrocarbylthio, hydrocarbylsulphinyl or hydrocarbylsulphonyl, cyano, nitro, CHO, NHOH, ONR.sup.7' R.sup.7", SF.sub.5 ; CO (optionally substituted lower hydrocarbyl), acylamino, COOR.sup.7, SO.sub.2 NR.sup.8 R.sup.9, CONR.sup.

Abstract: Herbicidal compound, esters of N-phosphonomethylglycinonitrile, are disclosed. Also a process for preparing same.