Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1996-02-29
2000-11-07
Michl, Paul R.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
C08F29300
Patent
active
061438316
ABSTRACT:
A system for preparing oriented block copolymer structures includes a copolymer solution, a device capable of providing a flow field and an evaporation device. The device can be at least two cylinders that are parallel and adjacent to one another to form a nip and a driving mechanism to rotate each cylinder. Means for controlling a solvent environment and evaporation are provided. A method for preparing oriented block copolymer structures includes providing at least two cylinders which are parallel and adjacent to one another so as to form at least one nip, rotating each of the cylinders such that at the nip the cylinder surfaces are moving in the same direction with substantially the same or different tangential velocity, introducing a block copolymer solution into one of the nips of the rotating cylinders, thereby subjecting the polymer solution to a flow field and whereby orientation of the solution begins and evaporating the solvent from the block copolymer solution, whereby ordered microphase separation occurs and the oriented block copolymer structure is formed on the surface of at least one cylinder.
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Albalak Ramon J.
Thomas Edwin L.
Michl Paul R.
The United States of America as represented by the Secretary of
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