Macromolecular highly branched homogeneous compound based on lysine units
Branched polyamidoamines Patent #: 4435548
ApplicationNo. 06/456226 filed on 01/07/1983
US Classes:528/332, With organic amine, or from organic amine salt of a carboxylic acid525/451, Solid polymer derived from carboxylic acid or derivative derived from ethylenically unsaturated reactant528/310, From imide- or lactam-containing compound, or from an amino-nitrogen containing carboxylic acid, or derivative of an amino-nitrogen-containing carboxylic acid528/328, From N-C-(C=O)-OH containing reactant or acid derivative thereof, e.g., alpha amino acid, etc.528/363With nitrogen-containing reactant
ExaminersPrimary: Anderson, Harold D.
International ClassesA61K 47/48 (20060101)
C08G 83/00 (20060101)
C09D 7/00 (20060101)
C09D 201/00 (20060101)
C10G 33/04 (20060101)
C10G 33/00 (20060101)
B01D 17/04 (20060101)
C08G 73/00 (20060101)
C08G 69/44 (20060101)
C08G 69/00 (20060101)
C08G 69/48 (20060101)
C08G 73/02 (20060101)
AbstractDense star polymers having terminal group densities greater than conventional star polymers exhibit greater and more uniform reactivity than their corresponding conventional star polymers. For example, a third generation, amine-terminated polyamidoamine dense star polymer prepared from ammonia, methyl acrylate and ethylenediamine has 1.24×10-4 amine moieties per unit volume (cubic Angstrom units) in contrast to the 1.58×10-6 amine moieties per unit volume contained by a conventional star polymer. Such dense star polymers are useful as demulsifiers for oil/water emulsions, wet strength agents in the manufacture of paper, and agents for modifying viscosity in aqueous formulations such as paints.
Field of SearchWith nitrogen-containing reactant
From imide- or lactam-containing compound, or from an amino-nitrogen containing carboxylic acid, or derivative of an amino-nitrogen-containing carboxylic acid
From N-C-(C=O)-OH containing reactant or acid derivative thereof, e.g., alpha amino acid, etc.
With organic amine, or from organic amine salt of a carboxylic acid