Process and apparatus for preparing uniform size polymer beads

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United States of America Patent

PATENT NO 4444961
SERIAL NO

06398007

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Abstract

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Spheroidal polymer beads having a uniform size are prepared by polymerizing uniformly sized monomer droplets formed by the vibratory excitation of a laminar jet of monomeric material flowing in a continuous liquid medium containing a suitable suspending agent. For example, a laminar jet of a monomer mixture comprising a monovinylidene aromatic such as styrene, a polyvinylidene aromatic such as divinylbenzene and a polymerization initiator can be subjected to vibratory excitation and the resulting monomer droplets polymerized to yield copolymer beads having a narrow particle size range distribution. The resulting copolymer beads can be employed to prepare high yields of ion exchange resins exhibiting superior properties, particularly in continuous ion exchange operations.

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Patent Owner(s)

Patent OwnerAddress
DIAMOND TECHNOLOGY PARTNERSHIP COMPANY2030 DOW CENTER DOW CHEMICAL COMPANY THEY MIDLAND MI 48674

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Timm, Edward E Coleman, MI 20 745

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