Emulsion polymerization method

• US 6,800,675 B1
• Filed: 04/17/2002
• Issued: 10/05/2004
• Est. Priority Date: 10/19/1999
• Status: Expired due to Term

• Current Assignee: Sdzucker Aktiengesellschaft Mannheim/Ochsenfurt
• Original Assignee: Sdzucker Aktiengesellschaft Mannheim/Ochsenfurt
• Inventors: Marnik, Michel Wastyn, Pfalz, Monika, Grüll, Dietmar
• Primary Examiner(s): EGWIM, KELECHI CHIDI
• Application Number:
  US10/111,055
• Time in Patent Office: 902 Days
• Field of Search: 524/47, 524/48, 524/52, 524/53, 524/800, 524/804
• US Class Current: 524/47
• CPC Class Codes: C08F 2/24 with the aid of emulsifying agents
• CPC Class Codes: C08F 251/00 Macromolecular compounds obtained by polymerising monomers on to polysaccharides or derivatives thereof
• CPC Class Codes: C08L 51/02 grafted on to polysaccharides
• CPC Class Codes: C09D 151/02 grafted on to polysaccharides
• CPC Class Codes: C09J 151/02 grafted on to polysaccharides

Abstract

The invention relates to starch, derived from amylopectin potatoes, which is preferably in a modified and/or derivatised form. Said starch is an especially advantages protective colloid for use in conducting emulsion polymerization reactions. The invention also relates to emulsion [co]polymerization methods and polymer dispersions produced thereby.

Claims

1. An aqueous polymer dispersion made by a process which comprises:

obtaining a starch including amylopectin potato starch from potatoes while inhibiting amylose formation;

(co)polymerizing an emulsion; and

stabilizing the emulsion with the starch.

2. The aqueous polymer dispersion according to claim 1, wherein the method further comprises modifying the starch.

3. The aqueous polymer dispersion according to claim 1, wherein the method comprises inhibiting the amylose formation by a cultivation method.

4. The aqueous polymer dispersion according to claim 1, wherein the method comprises inhibiting the amylose formation by a recombinant method.

5. The aqueous polymer dispersion according to claim 1, wherein the method comprises inhibiting the amylose formation by a molecular-biological method.

6. The aqueous polymer dispersion according to claim 1, wherein the method further comprises adding a further emulsifier during the (co)polymerizing.

7. The aqueous polymer dispersion according to claim 1, wherein the method further comprises stabilizing the (co)polymerizing with an emulsion stabilizer.

8. The aqueous polymer dispersion according to claim 2, herein the method further comprises derivating the starch.