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Title: Silane-modified polyester blends and methods of preparation

Patent ·
OSTI ID:1771760

A silane-modified polyester blend comprising a polyester polymer homogeneously blended with silane molecules containing two or three alkoxy groups bound to the silicon atom, wherein said silane molecules are present in said polyester blend in an amount of 0.05-20 wt % (or, e.g., 0.05-10 wt %, 0.05-5 wt %, or 0.05-2 wt %). The polyester polymer may, in particular embodiments, be a polyhydroxyalkanoate, terephthalate-based polyester, adipate-based, or succinate-based polyester. The silane molecule may be according to the formula (R2O)2SiR3R4, wherein R2 groups are independently selected from alkyl groups containing 1-4 carbon atoms; and R3 and R4 are independently selected from OR2 groups and alkyl groups containing 1-12 carbon atoms, provided that at least one of R3 and R4 is an alkyl group, wherein the alkyl group optionally includes one or more heteroatoms selected from oxygen, nitrogen, halogen, sulfur, phosphorus, and silicon. Methods for producing the silane-modified polyester blend are also described.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC05-00OR22725
Assignee:
UT-Battelle, LLC (Oak Ridge, TN); Iowa State University Research Foundation, Inc. (Knoxville, TN)
Patent Number(s):
10,875,960
Application Number:
16/110,138
OSTI ID:
1771760
Resource Relation:
Patent File Date: 08/23/2018
Country of Publication:
United States
Language:
English

References (17)

Biodegradable Poly(butylene succinate) Composites Reinforced by Cotton Fiber with Silane Coupling Agent journal January 2013
Polyesters Stabilized with Hydrocarbyl Trialkoxy Silanes January 1970
Mixed alkoxysilyl functional polymers patent-application June 2004
Synthesis and characterization of PLA nanocomposites containing nanosilica modified with different organosilanes I. Effect of the organosilanes on the properties of nanocomposites: Macromolecular, morphological, and rheologic characterization journal January 2012
Synthesis and characterization of PLA nanocomposites containing nanosilica modified with different organosilanes II: Effect of the organosilanes on the properties of nanocomposites: Thermal characterization journal September 2012
Inhibited transesterification of PET/PBT blends filled with silica nanoparticles during melt processing journal August 2008
Inorganically Modified Polyester Binder Preparation, Process for Production and Use Thereof patent-application July 2011
Thermoplastic Resin Composition and Molded Body Obtained by Molding the Same patent-application November 2010
Increased impact strength of biodegradable poly(lactic acid)/poly(butylene succinate) blend composites by using isocyanate as a reactive processing agent journal January 2007
Polyester Stabilized with Organo Substituted Silanes March 1972
New trends in vinyl ester resins journal January 2014
Mechanical and rheological properties of epoxidized soybean oil plasticized poly(lactic acid) journal June 2009
Poly(ethylene terephthalate) blends patent November 1985
Silane Group-Containing Polymer Composition and Coatings Containing Same patent-application January 2015
Polylactic Acid Resin Composition patent-application March 2011
Shape Memory Properties of PBS-Silica Hybrids journal January 2014
Biodegradable polymers and their layered silicate nanocomposites: In greening the 21st century materials world journal November 2005

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