Containers comprising polyester compositions which comprise cyclobutanediol

Patent metadata

Field	Value
Publication number	US-9534079-B2
Application number	US-201514865714-A
Country	US
Kind code	B2
Filing date	Sep 25, 2015
Priority date	Jun 17, 2005
Publication date	Jan 3, 2017
Grant date	Jan 3, 2017

Abstract

Articles, including water bottle(s) having a weight from 200 to 800 grams comprising a polyester composition comprising at least one polyester which comprises: (a) a dicarboxylic acid component comprising terephthalic acid residues; optionally, aromatic dicarboxylic acid or aliphatic dicarboxylic acid residues; and (b) a glycol component comprising 30 to 40 mole % of 2,2,4,4-tetramethyl-1,3-cyclobutanediol residues; and 60 to 70 mole % of 1,4-cyclohexanedimethanol residues; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole and the inherent viscosity of the polyester is from 0.50 to 0.68 dl/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.5 g/100 ml at 25° C.; and wherein the polyester has a Tg of from 100 to 140° C.; and wherein the polyester composition contains no polycarbonate.

First claim

What is claimed is:

1. A water bottle having a weight from 200 to 800 grams comprising at least one polyester composition comprising at least one polyester which comprises:
(a) a dicarboxylic acid component comprising:
i) 70 to 100 mole % of terephthalic acid residues;
ii) 0 to 30 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
iii) 0 to 10 mole % of aliphatic dicarboxylic acid residues having up to 16 carbon atoms; and

(b) a glycol component comprising:
i) 30 to 40 mole % of 2,2,4,4-tetramethyl-1,3-cyclobutanediol residues; and
ii) 60 to 70 mole % of 1,4-cyclohexanedimethanol residues,

wherein the total mole % of said dicarboxylic acid component is 100 mole %, and the total mole % of said glycol component is 100 mole %;
wherein the inherent viscosity of said polyester is from 0.50 to 0.68 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.5 g/100 ml at 25° C.;
and wherein said polyester has a Tg of from 100 to 140° C.;
wherein said polyester has a notched Izod impact strength of at least 7.5 ft-lb/inch at 23° C. according to ASTM D256 with a 10-mil notch in a ⅛-inch thick bar;
wherein the melt viscosity of said polyester is less than 10,000 poise as measured at 1 radian/second on a rotary melt rheometer at 290° C.; and
wherein said polyester composition contains no polycarbonate.

2. The water bottle of claim 1 , wherein the inherent viscosity of said polyester is from 0.60 to 0.68 dL/g.

3. The water bottle of claim 1 , wherein said polyester has a Tg of 100 to 130° C.

4. The water bottle of claim 1 wherein said polyester has a Tg of 100 to 120° C.

5. The water bottle of claim 1 , wherein said polyester has a Tg of 110 to 140° C.

6. The water bottle of claim 1 , wherein said polyester has a Tg of 110 to 130° C.

7. The water bottle of claim 1 , wherein the glycol component of said polyester comprises 30 to 35 mole % 2,2,4,4-tetramethyl-1,3-cyclobutanediol and 65 to 70 mole % 1,4-cyclohexanedimethanol.

8. The water bottle of claim 1 , wherein the glycol component of said polyester comprises 35 to 40 mole % 2,2,4,4-tetramethyl-1,3-cyclobutanediol and 60 to 65 mole % 1,4-cyclohexanedimethanol.

9. The water bottle of claim 1 , wherein the dicarboxylic acid component comprises 80 to 100 mole % of terephthalic acid residues.

10. The water bottle of claim 1 , wherein the dicarboxylic acid component comprises 90 to 100 mole % of terephthalic acid residues.

11. The water bottle of claim 1 , wherein the dicarboxylic acid component comprises 100 mole % of terephthalic acid residues.

12. The water bottle of claim 1 , wherein said polyester comprises 1,3-propanediol residues, 1,4-butanediol residues, or a mixture thereof.

13. The water bottle of claim 1 , wherein said 2,2,4,4-tetramethyl-1,3-cyclobutanediol residues are a mixture comprising 40 mole % of cis-2,2,4,4-tetramethyl-1,3-cyclobutanediol residues or greater and 60 mole % or less of trans-2,2,4,4-tetramethyl-1,3-cyclobutanediol residues.

14. The water bottle of claim 1 , wherein said 2,2,4,4-tetramethyl-1,3-cyclobutanediol residues are a mixture comprising greater than 50 mole % of cis-2,2,4,4-tetramethyl-1,3-cyclobutanediol residues and less than 50 mole % of trans-2,2,4,4-tetramethyl-1,3-cyclobutanediol residues.

15. The water bottle of claim 1 , wherein said 2,2,4,4-tetramethyl-1,3-cyclobutanediol is a mixture comprising greater than 55 mole % of cis-2,2,4,4-tetramethyl-1,3-cyclobutanediol residues and less than 45 mole % of trans-2,2,4,4-tetramethyl-1,3-cyclobutanediol residues.

16. The water bottle of claim 1 , wherein said polyester composition comprises at least one polymer chosen from at least one of the following: polyesters other than those of claim 1 ; polyamides; polystyrene; polystyrene copolymers; styrene acrylonitrile copolymers; acrylonitrile butadiene styrene copolymers; poly(methylmethacrylate); acrylic copolymers; poly(ether-imides); polyphenylene oxides, poly(phenylene oxide)/polystyrene blends; polyphenylene sulfides; polyphenylene sulfide/sulfones; polysulfones; polysulfone ethers; poly(ether-ketones) of aromatic dihydroxy compounds; or mixtures thereof.

17. The water bottle of claim 1 , wherein said polyester comprises residues of at least one branching agent for said polyester.

18. The water bottle of claim 1 , wherein said polyester comprises residues of at least one branching agent in an amount of 0.01 to 10 mole % based on the total mole % of diacid residues or diol residues in the polyester.

19. The water bottle of claim 1 , wherein the melt viscosity of said polyester is less than 6,000 poise as measured at 1 radian/second on a rotary melt rheometer at 290° C.

20. The water bottle of claim 1 , wherein said polyester has a crystallization half-time of greater than 5 minutes at 170° C.

Assignees

• Eastman Chem Co

Inventors

• Crawford Emmett Dudley
• Pecorini Thomas Joseph
• Porter David Scott
• Connell Gary Wayne
• Keegan Michael James

Classifications

• G02B1/14

  Protective coatings, e.g. hard coatings · CPC title

• C08J7/0427

  with only one layer of a composition containing a polymer binder (with more layers C08J7/042) · CPC title

• E04D13/03

  Sky-lights; Domes; Ventilating sky-lights (E04D13/14 takes precedence; structures therefor, {e.g. dormer windows} E04B7/18; {saw-tooth roofs with light-transmission E04B7/12}) · CPC title

• C08J2367/02

  Polyesters derived from dicarboxylic acids and dihydroxy compounds; (C08J2367/06 takes precedence) · CPC title

• Y10T428/139

  Open-ended, self-supporting conduit, cylinder, or tube-type article · CPC title