Patent ID: 8226868

Claim:
A method of producing a flat profiled element from an elastomeric gel, the method comprising steps of: arranging an extruder, such that an extruder die of the extruder is inclined at an angle between 20 and 70 degrees relative to a horizontal plane; introducing into at least one feed of the extruder constituents of an elastomeric gel, the constituents including at least a thermoplastic styrene elastomer and between 500 to 1000 pce of polyisobutylene as an extender oil; mixing the constituents to obtain a homogeneous plastic material; distributing the plastic material at an outlet of the extruder die, the outlet of the extruder die having a flat opening; arranging a liquid cooling bath to receive the plastic material from the outlet of the extruder die, such that a part of the cooling bath is less than 50 mm from the outlet of the extruder die; extruding the plastic material, such that the plastic material as extruded from the outlet of the extruder die has a width-to-thickness ratio greater than 5; cooling the extruded plastic material to obtain a flat profiled element; and receiving the flat profiled element on a flat moving support.