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US 10,836,909 B2Granted
Blends of polyesters and phosphonate oligomers and polymers
AssigneeFrx Polymers, Inc.
InventorsXiudong Sun, Youmi Jeong, Peter Louvaris
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Abstract
This disclosure relates to polymer compositions comprising blends of polyesters and phosphonate oligomers or polymers as well as methods of making them and articles of manufacture made from such blends.
Claims32
A polymer composition comprising:
- a blend of
- a phosphonate oligomer or polymer;
- and
- a polyester which chemically reacts with the phosphonate oligomer or polymer within the residence time of the plastic processing step that is used to make the polymer composition.
1 more element
A polymer composition comprising:
- a blend of
- a phosphonate oligomer or polymer;
- a polyester which does not chemically react with the phosphonate oligomer or polymer within the residence time of the plastic processing step that is used to make the polymer composition;
- and
- an additive that promotes and initiates the reaction between the polyester and the phosphonate compound within the residence time of the plastic processing step that is used to make the polymer composition.
2 more elements
A method for making a polymer blend comprising:
- mixing >30 wt % of a phosphonate oligomer or polymer with a polyester, wherein the polyester reacts with the phosphonate oligomer or polymer within the residence time of the compounding step to yield a blend;
- subjecting the blend to a compounder;
- and
- heating the blend to a temperature of about 200° C. to about 300° C., wherein the blend has a sintering temperature of at least about 120° C.
1 more element
An article of manufacture comprising:
- a blend having a phosphonate oligomer or polymer, and a polyester,
- wherein the polyester has reacted with the phosphonate oligomer or polymer.
Dependencies are inferred from the claim text.