Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Reexamination Certificate
2011-03-29
2011-03-29
Bernshteyn, Michael M (Department: 1762)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
C524S047000, C527S312000, C527S313000, C527S314000
Reexamination Certificate
active
07915340
ABSTRACT:
A cationic starch graft copolymer is prepared by polymerization of monomers a) to d)a) 20-80% by weight of acrylamide, methacrylamide or mixtures thereof,b) 3-20% by weight of at least one basic or cationic vinyl monomer;c) 0.005-1.5% by weight of at least one bifunctional or higher-functional crosslinking agent,d) 0-10% by weight of at least one nonionic or anionic vinyl monomer which differs from the monomers mentioned under a) to c)in the presence of a grafting base e)e) 15˜70% by weight of at least one starch or one starch derivative,the sum of a) to e) being 100% by weight.
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Notice of Allowance for U.S. Appl. No. 10/788,064; filed Feb. 26, 2004; First Named Inventor: Berndt Hauschel; Mail Date: Jun. 14, 2010.
Office Action—Advisory for U.S. Appl. No. 10/788,064; filed Feb. 26, 2004; First Named Inventor: Berndt Hauschel; Mail Date: May 17, 2010.
Office Action—Final for U.S. Appl. No. 10/788,064; filed Feb. 26, 2004; First Named Inventor: Berndt Hauschel; Mail Date: Mar. 11, 2010.
Office Action—Final for U.S. Appl. No. 10/788,064; filed Feb. 26, 2004; First Named Inventor: Berndt Hauschel; Mail Date: May 13, 2009.
Office Action—Non-Final for U.S. Appl. No. 10/788,064; filed Feb. 26, 2004; First Named Inventor: Berndt Hauschel; Mail Date: Feb. 26, 2008.
Office Action—Non-Final for U.S. Appl. No. 10/788,064; filed Feb. 26, 2004; First Named Inventor: Berndt Hauschel; Mail DAte: Jul. 31, 2009.
Office Action—Non-Final for U.S. Appl. No. 10/788,064; filed Feb. 26, 2004; First Named Inventor: Berndt Hauschel; Mail Date: Nov. 21, 2008.
Office Action—Non-Final for U.S. Appl. No. 10/788,064; filed Feb. 26, 2004; First named Inventor: Berndt Hauschel; Mail Date: Jul. 26, 2007.
Office Action—Restriction/Election for U.S. Appl. No. 10/788,064; filed Feb. 26, 2004; First Named Inventor: Verndt Hauschel; Mail Date: Apr. 6, 2007.
Office Action—Pre-Appeal Decision for U.S. Appl. No. 10/788,064; filed Feb. 26, 2004; First Named Inventor: Berndt Hauschel; Mail Date: Jul. 24, 2009.
Hauschel Bernd
Hübbe Thomas
Jansen Bernhard
Thiele Bernd
Bernshteyn Michael M
Cantor & Colburn LLP
Oyi Kemira
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