Abstract: One aspect of the invention is an insufflator having at least a first and second gas input connection, The first and second gas input connections are operable to be connected to a first gas source and a second gas source, respectively. The insufflator has a first gas output connection. A first flow regulation unit may be coupled to the first and second gas input connection and to the first gas output. The first flow regulation unit may be configured to regulate the flow of gas through the first gas output connection in response to pressure measurements equal or proportional to the pressure in a body cavity to which the insufflator is supplying gas.

Abstract: An apparatus to support dental simulation, the apparatus including a torso to support a dental simulation manikin, an arm rotatably coupled to the torso, the torso rotatable along a first axis with respect to the arm, and a connector base to rotatably couple the arm to a hub portion, the connector base rotatable along a second axis, the second axis different than the first axis.

Abstract: A coating composition which exhibits excellent sag resistance without the necessity for externally added rheology control agent is prepared from a curing agent and an ungelled hydroxyl functional graft copolymer. The graft copolymer is prepared by the vinyl addition polymerization, in an inert organic solvent, of a vinyl monomer component containing at least a portion of a carboxyl functional vinyl monomer in the presence of a glycidyl ester containing acrylic polymer. The grafting occurs by the condensation reaction between the carboxyl groups of the vinyl monomer component and the epoxy groups of the glycidyl ester containing acrylic polymer.

Abstract: A liquid, hydroxyl functional graft copolymer is prepared by the vinyl addition polymerization, in an inert organic medium, of a vinyl monomer component comprising at least a portion of a carboxyl functional vinyl monomer in the presence of a glycidyl ester containing acrylic polymer, the grafting occuring by the condensation reaction between the carboxyl groups of the vinyl monomer component and the epoxy groups of the glycidyl ester containing acrylic polymer. The graft copolymer is especially useful in formulating clear coating compositions which exhibit excellent sag resistance without the necessity for externally added rheology control agent.