Patent ID: 6590052
Filing Date: 2003-07-08
Classification: B01F,B01J,B29K

Abstract:
A continuous polymerization process for preparation of homopolymers or copolymers by free-impinging-jet micromixing of fluids formed (1) of monomer(s) and (2) of an initiator system, wherein said fluids (1) and (2) are micromixed and the mixture of these fluids is recovered in the form of a resultant jet Jr, originating from the point of impingement (I), the micromixing being obtained by:a) forming at least one group of at least two jets Ja delivering monomers, these jets coinciding at a point of impingement (I), the jets Ja of the same group all being of identical geometry, their axes being arranged such that their projections on a plane perpendicular to the axis (A) of the resultant jet Jr are distributed angularly in a uniform manner and these axes inclined relative to the said axis (A) by the same angles &agr; of between 10Â° and 60Â°; b) simultaneously directing at the point of impingement (I) at least one jet Jb delivering an initiator system for forming the resultant jet Jr, the axis of the jet(s) Jb being inclined relative to the axis of the resultant jet Jr by an angle &bgr; which is less than the angle &agr;, the resultant jet Jr forming an axis of symmetry for jets Jb, jets Ja, Jb and Jr directing fluid in the same general direction; and c) recovering the mixture of the fluids in the jets Ja and Jb in the form of the resultant jet Jr comprising the homopolymers or copolymers.