Abstract: A backpack and clamp are provided. The backpack includes a pair of shoulder straps, a rear surface and a front surface opposite the rear surface. The clamp is secured to the backpack. The clamp includes a base secured to the front surface of the backpack. The base includes a first side and a second side opposite the first side. The clamp further includes a cover. The cover includes an inner edge having a pivotal connection with the first side of the base. The cover further includes an outer edge having a latch that releasably connects to the second side of the base.

Abstract: Disclosed is an improvement to a polyether preparation process that includes a coalescing step. Amine-initiated polyethers prepared using a mixed alkylene oxide feed tend to coalesce significantly more slowly than glycerin-initiated polyethers, particularly in processes that include a holding step and/or elevated temperature following an initial alkoxylation to form a pre-polymer. This improvement is to perform a remedial end-capping of the pre-polymer, which may include amine degradation products, using an alkylene oxide which contains at least (3) carbons, prior to the molecular weight-building alkoxylation with the mixed alkylene oxide feed. The rate and performance of coalescing thereafter may be substantially enhanced.