Component addition polymerization

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11548955
APP PUB NO 20200325251A1
SERIAL NO

16759079

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Abstract

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Provided is a collection of polymeric beads, wherein the beads comprise

    (i) 75 to 99% by weight, based on the weight of the bead, polymerized units of monofunctional vinyl monomer, and(ii) 1 to 25% by weight, based on the weight of the bead, polymerized units of multifunctional vinyl monomer;wherein, within each bead, the average concentration of moles of polymerized units of multifunctional vinyl monomer per cubic micrometer is MVAV;wherein, within each bead, T1000 is a sequence of 1,000 unique connected polymerized monomer units;wherein, within each T1000, MVSEQ is the weight percent polymerized units of multifunctional vinyl monomer, based on the weight of T1000;wherein MVRATIO=MVSEQ/MVAV;andwherein 90% or more of the beads by volume are uniform beads, wherein a uniform bead is a bead in which 90% or more of all T1000 sequences has MVRATIO of 1.5 or less.

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Patent Owner(s)

Patent OwnerAddress
DUPONT SPECIALTY PRODUCTS USA LLC974 CENTRE ROAD WILMINGTON DE 19805

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Laughlin, Kenneth Maple Glen, US 2 1
Reffner, John North Wales, US 5 1
Savo, Andrew M Cherry Hill, US 15 16
Schultz, Alfred K Maple Glen, US 36 254

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