Other

Solvay Specialty Polymers Italy S.p.a.

Hankook Tire Co., Ltd.

Suk Young Lee

Aldo Sanguineti

Young Moo Lee

Enrico Drioli

Emanuele Di Nicolo′

Zhaoliang Cui

Naser Tavajohi Hassankiadeh

The present invention pertains to a process for manufacturing a fluoropolymer membrane, said process comprising the following steps: (i) providing a composition [composition (C)] comprising, preferably consisting of: at least one fluoropolymer [polymer (F)], a water-soluble liquid medium [medium (M)] comprising, preferably consisting of at least one solvent selected from the group consisting of diesters of formula (I-), esteramides of formula (I-) and diamides of formula (I-); R(O&#x2550;)CO-A-OC(&#x2550;O)R(I-) RO(O&#x2550;)C-A-C(&#x2550;O)NRR(I-) RRN(O&#x2550;)C-A-C(&#x2550;O)NRR(I-) wherein: Rand R, equal to or different from each other, are independently selected from the group consisting of C-Chydrocarbon groups; R, R, Rand R, equal to or different from each other, are independently selected from the group consisting of hydrogen, C-Chydrocarbon groups, possibly substituted, being understood that R, R, Rand Rmight be part of a cyclic moiety including the nitrogen atom to which they are bound, said cyclic moiety being possibly substituted and/or possibly comprising one or more than one additional heteroatoms, Ais a C-Cdivalent alkylene group comprising one or more ether oxygen atoms, Aand A, equal to or different from each other, are independently C-Cdivalent alkylene groups, optionally comprising one or more ether oxygen atoms and/or one or more functional side groups; (ii) processing the composition (C) at a temperature of at least 100&#xb0; C. thereby providing a film; (iii) cooling the film provided in step (ii) to a temperature below 50&#xb0; C.; (iv) contacting the film provided in step (iii) with a non-solvent medium [medium (M NS)] thereby providing a fluoropolymer membrane; and (v) optionally, drying the fluoropolymer membrane provided in step (iv).

Process for manufacturing fluoropolymer membranes

Tire tread

A barbell comprises a bar 1 and a weight 2 mounted on the bar by the bar passing through a central hole in the weight. Hand-grip regions 3 of the bar are adapted to be gripped by the user during exercise, the hand-grip regions being positioned one on each side of the weight. The weight is elongate along the length of the bar and roughly square-shaped in cross-section, to allow the bar to pass close to the chest of the user during use. The center of gravity of the weight is displaced from the axis of the bar sufficiently for the weight to rotate relative to the bar during lifting by the user so as to avoid the twisting force of the weight due to its moment of inertia being transferred to the wrists of the user.

Barbell

Growing community of inventors

Seoul, South Korea

Suk Young Lee