Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1995-04-18
1996-05-14
Schofer, Joseph L
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
525344, 525355, 525374, 5263073, 526215, C08C 1924
Patent
active
055168523
ABSTRACT:
A method of preparing a high molecular weight water-soluble cationic copolymer by reacting in an aqueous solution at least one N-vinylamide and at least one cationic quaternary amine monomer in the presence of a free radical initiator and a salt of ethylenediamine tetraacetic acid and subjecting the formed polymer to an acid or base to form an N-vinylamide/N-vinylamine/cationic quaternary amine copolymer product.
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1046 TMOG 2 "Official Gazette" Sep. 4, 1984.
"Polyvinylamine--A New Class of Polymers For Paper Production With a Range of Environment-Friendly Characterisics", by F. Linhart and W. Auhorn, in Das Papier, No. 10A, 1992, pp. V38-V45. (Translation of a German Article.).
Kuo Lawrence L.
Leung Roger Y.
Williams Kenneth S.
Sarofim N.
Schofer Joseph L
Troffkin Howard J.
W. R. Grace & Co.,-Conn.
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