A poly-4-methyl-1-pentene resin laminate excellent in not only heat sealing properties and oxygen gas permeability but also blocking resistance is provided. In a preferred method, at least one microstimulator treats sleep apnea in an open loop fashion by providing electrical stimulation pulses in a rhythm or cycle having a period corresponding approximately to the natural respiratory rhythm of the patient. In various embodiments, front, rear andor side or portions thereof are used. Products can be used directly as transportation fuels andor blending components to provide, for example, more suitable components for blending into fuels which are more friendly to the environment. The material of the cooling element particularly preferably has a high modulus of elasticity such that the compensation takes place substantially within the elastic strain regime.