US 2010/0143738 A1 · Process for Producing Biopolymer Nanoparticle Biolatex Compositions Having Enhanced Performance and Compositions Based Thereon

Abstract

The present invention provides novel biolatex conjugate compositions and methods of production and use thereof. The novel biolatex conjugate compositions comprise a biopolymer-additive complex (prepared by co-extruding a biopolymer feedstock, at least one performance-enhancing additive, and at least one plasticizer under shear forces) reacted with a crosslinking agent under shear forces. The biolatex conjugate compositions exhibit enhanced performance properties for coated paper, paperboard, and other applications using extremely low levels of performance-enhancing additives.

Claims42

Dependent claims

A process for producing a biolatex conjugate composition, the process comprising:

feeding biopolymer feedstock, at least one plasticizer and at least one additive to a feed zone of an extruder having a screw configuration such that the biopolymer feedstock, the at least one plasticizer and the at least one additive are processed under shear forces in the extruder to form a biopolymer-additive complex;
and
adding a crosslinking agent to the biopolymer-additive complex,
thereby producing a biolatex conjugate composition.

1 more element

Dependencies are inferred from the claim text.

Facts

Application

12/630,526Filed 3 Dec 2009

Priority

3 Dec 2008

Published

10 Jun 2010

Term ends

Not estimatedThe source records don’t support an estimate.

Classification48 codes

B29B 7/483
Provided with screw parts in addition to other mixing parts, e.g. paddles, gears, discs: the other mixing parts being discs perpendicular to the…
B29B 7/488
With intermeshing devices, e.g. screws: parts, e.g. casings, sealings; Accessories, e.g. flow controlling or throttling devices
B29B 7/489
Parts, e.g. casings, sealings; Accessories, e.g. flow controlling or throttling devices: screws
B29B 7/603
For feeding, e.g. end guides for the incoming material: in measured doses, e.g. proportioning of several materials

Process for Producing Biopolymer Nanoparticle Biolatex Compositions Having Enhanced Performance and Compositions Based Thereon

Life of this patent

Process for Producing Biopolymer Nanoparticle Biolatex Compositions Having Enhanced Performance and Compositions Based Thereon

Life of this patent

Abstract

Claims42