Abstract: An apparatus (10) for winding a screen (12) comprises a winding drum (14) for winding the screen (12) which can rotate about an axis of rotation (16) with respect to a fixed frame of reference over more than one revolution between at least one first end-of-travel position and a second end-of-travel position, a motor assembly (30) comprising a motor (32) equipped with a stator (32.1) intended to be fixed to a fixed support (23, 26) and a rotor (32.2) kinematically connected to the winding drum (14). A first measurement assembly (51) comprises a first encoder (46) secured to the rotor (32.2), a first sensor for reading the first encoder (46) and generating a first counting signal when the first encoder (46) turns. First processing means (50) generate, as a function of the first counting signal, a first signal indicative of the position of the screen, which signal is monotonous when the drum moves from the first end-of-travel position to the second end-of-travel position.

Abstract: An apparatus (10) for winding a screen (12) comprises a winding drum (14) for winding the screen (12) which can rotate about an axis of rotation (16) with respect to a fixed frame of reference over more than one revolution between at least one first end-of-travel position and a second end-of-travel position, a motor assembly (30) comprising a motor (32) equipped with a stator (32.1) intended to be fixed to a fixed support (23, 26) and a rotor (32.2) kinematically connected to the winding drum (14). A first measurement assembly (51) comprises a first encoder (46) secured to the rotor (32.2), a first sensor for reading the first encoder (46) and generating a first counting signal when the first encoder (46) turns. First processing means (50) generate, as a function of the first counting signal, a first signal indicative of the position of the screen, which signal is monotonous when the drum moves from the first end-of-travel position to the second end-of-travel position.

Abstract: Stabilized compositions based on alpha-olefin polymers stabilized against degradation by oxidizing liquids, based on polymers of alpha-olefins such as propylene, containing a phenolic antioxidant, a phosphonite and a sulphur-containing stabilizer chosen from the esters derived from aliphatic polyols and alkylthiodipropionic acids and from combinations of a metal sulfide with one of these esters or with an organic polysulfide and optionally also containing an organic phosphite and an anti-acid agent. These compositions exhibit outstanding resistance to the phenomenon of oxidative degradation produced particularly by the contact with hot washing products of all kinds.

Abstract: Stabilized against degradation by oxidizing liquids, based on polymers of alpha-olefins such as propylene, containing a phenolic antioxidant, a phosphonite and a sulfur-containing stabilizer chosen from the esters derived from aliphatic polyols and alkylthiodipropionic acids and from combinations of a metal sulfide with one of these esters or with an organic polysulfide and optionally also containing an organic phosphite and an anti-acid agent. These compositions exhibit outstanding resistance to the phenomenon of oxidative degradation produced particularly by the contact with hot washing products of all kinds.