Abstract: The present invention includes a roller brush provided in a frame main body. The roller brush includes a rigid shaft, a pair of guide rollers, which are arranged concentrically with a shaft center line of the rigid shaft, and are mounted to shaft ends of the rigid shaft, and a cleaning brush cloth including cut piles raised from a cloth front surface of a foundation cloth. The cleaning brush cloth is helically wound around a shaft outer-peripheral surface of the rigid shaft with a cloth back surface of the foundation cloth being in contact with the shaft outer-peripheral surface, and is fixed to the rigid shaft.

Abstract: The present invention provides a manual cleaning tool that enables suppression of plastic deformation (permanent deformation) such as bending when a roller brush is removed. The present invention includes a roller brush (7) provided in a frame main body (15). The roller brush (7) includes a rigid shaft (46), a pair of guide rollers (47, 48), which are arranged concentrically with a shaft center line (G) of the rigid shaft (46), and are mounted to shaft ends (46A, 46B) of the rigid shaft (46), and a cleaning brush cloth (49) including cut piles (52) raised from a cloth front surface (51A) of a foundation cloth (51). The cleaning brush cloth (49) is helically wound around a shaft outer-peripheral surface (46C) of the rigid shaft (46) with a cloth back surface (51B) of the foundation cloth (51) being in contact with the shaft outer-peripheral surface (46C), and is fixed to the rigid shaft. The roller brush (7) is removable from the frame main body (15) under an elastically deformed state of the rigid shaft (46).

Abstract: A curable polymer composition comprising (a) an oxyalkylene polymer having a silicon-containing group which has a hydroxyl or hydrolyzable group bonded to the silicon atom and can be crosslinked through a silanol condensation reaction, and (b) a paraffinic hydrocarbon, which composition provides a cured material having improved tack which remains on the surface of the cured material.

Abstract: A curable polymer composition comprising (a) an oxyalkylene polymer having a silicon-containing group which has a hydroxyl or hydrolyzable group bonded to the silicon atom and can be crosslinked through a silanol condensation reaction, and (b) a paraffinic hydrocarbon, which composition provides a cured material having improved tack which remains on the surface of the cured material.