COPOLYETHERESTER RESIN COMPOSITION

1 . A copolyetherester composition comprising:

(1) at least one copolyetherester resin; and

(2) a stearate selected from:

(2b) stearic acid;

(2c) aluminium tristearate;

(2d) aluminium distearate;

(2e) mixtures of aluminium tristearate and aluminium distearate;

(2f) mixtures of two or more of any of the foregoing; and

(2g) mixtures of two or more of any of the foregoing with stearic acid or sodium stearate.

2 . The copolyetherester composition of claim 1 , wherein the at least one copolyetherester resin is selected from those from those prepared from the monomers (1) a poly(alkylene oxide)diol, (2) a dicarboxylic acid selected from terephthalate, isophthalate and mixtures thereof, (3) a diol selected from butane diol, propane diol and mixtures thereof.

3 . The copolyetherester composition of claim 2 , wherein the poly(alkylene oxide)diol is PTMEG, the dicarboxylic acid is terephthalate and the diol is 1,4-butane diol.

4 . The copolyetherester composition of claim 2 , wherein the copolyetherester resin comprises 35 wt % to 50 wt % of soft segments derived from the poly(alkylene oxide)diol, wherein the weight percentages are based on the total weight of the copolyetherester resin.

5 . (canceled)

6 . (canceled)

7 . The copolyetherester composition of claim 1 , wherein the stearate is selected from:

(1) aluminium tristearate at 0.5 to 1 wt %, plus sodium stearate at 0.25 to 0.75 wt %;

(2) aluminium distearate at 0.5 to 1 wt %;

(3) stearic acid at 0.3 to 0.8 wt %;

(4) aluminium distearate at 0.5 to 1 wt % plus sodium stearate at 0.25 to 0.75 wt %; and

(5) aluminium distearate at 0.5 to 1 wt % plus stearic acid at 0.25 to 0.75 wt %;

wherein the weight percentages based on the total weight of the composition.

8 . The copolyetherester composition of claim 1 , further comprising a wax selected from compounds with unsaturated fatty acids, such as unsaturated amides, erucamide, compounds with saturated fatty acids, polyethylene based non-polar waxes, esters of montanic acid, glycols, and combinations of two or more of these.

9 . (canceled)

10 . The copolyetherester composition of claim 8 , wherein the wax is selected from acid waxes, erucamide, PTMEG with a molecular weight between 800 and 3,000 Da, and N,N′-ethylenebisoleamide.

11 . A copolyetherester composition comprising:

(1) at least one copolyetherester resin;

(2) a stearate selected from:

(2a) sodium stearate;

(2b) stearic acid;

(2c) aluminium tristearate;

(2d) aluminium distearate;

(2e) mixtures of aluminium tristearate and aluminium distearate; and

(2f) mixtures of two or more of any of the foregoing; and

(3) polytetrafluoroethylene.

12 . The copolyetherester composition of claim 11 , wherein the at least one copolyetherester resin is selected from those from those prepared from the monomers (1) a poly(alkylene oxide)diol, (2) a dicarboxylic acid selected from terephthalate, isophthalate and mixtures thereof, (3) a diol selected from butane diol, propane diol and mixtures thereof.

13 . The copolyetherester composition of claim 12 , wherein the poly(alkylene oxide)diol is PTMEG, the dicarboxylic acid is terephthalate and the diol is 1,4-butane diol.

14 . The copolyetherester composition of claim 12 , wherein the copolyetherester resin comprises 35 wt % to 50 wt % of soft segments derived from the poly(alkylene oxide)diol, wherein the weight percentages are based on the total weight of the copolyetherester resin.

15 . (canceled)

16 . The copolyetherester composition of claim 11 , wherein the stearate is selected from:

(1) aluminium distearate at 0.5 to 1.5 wt %, more preferably 1 wt %;

(2) aluminium tristearate at 0.5 to 1.5 wt %, more preferably 1 wt %;

(3) aluminium distearate at 0.4 to 1 wt %, more preferably 0.6 wt % plus stearic acid at 0.3 to 1 wt %, more preferably 0.5 wt %;

(4) aluminium distearate at 0.5 to 1 wt %, preferably 0.6 wt % plus sodium stearate at 0.4 to 1 wt %, preferably 0.8 wt %; and

(5) aluminium tristearate at 0.3 to 1 wt %, preferably 0.5 wt % plus sodium stearate at 0.3 to 1 wt %, preferably 0.5 wt %; and

(6) sodium stearate at 0.2 to 0.6 wt %;

wherein the weight percentages are based on the total weight of the composition.

17 . The copolyetherester composition of claim 11 , wherein the PTFE has a molecular weight of from 10 6 to 10 8 Da.

18 . (canceled)

19 . The copolyetherester composition of claim 11 , wherein the PTFE is added in the form of an aqueous dispersion or PTFE encapsulated in a compatibilizing polymer.

20 . The copolyetherester composition of claim 11 , further comprising a wax selected from compounds with unsaturated fatty acids, such as unsaturated amides, erucamide, compounds with saturated fatty acids, polyethylene based non-polar waxes, esters of montanic acid, glycols, and combinations of two or more of these.

21 . (canceled)

22 . The copolyetherester composition of claim 20 , wherein the wax is selected from acid waxes, erucamide, PTMEG with a molecular weight between 800 and 3,000 Da, and N,N′-ethylenebisoleamide.

23 . A CVJ boot made from the copolyetherester composition of claim 1 .

24 . A CVJ boot made from the copolyetherester composition of claim 11 .

25 . The copolyetherester composition of claim 1 , wherein the copolyetherester resin is present in an amount of from at or about 80 to at or about 96 weight percent; or the stearate is present in an amount of from 0.2 to 2 wt %; or the wax, if present, is present in an amount of from 0.2 to 3 wt %, based on the total weight of the copolyetherester composition.

26 . The copolyetherester composition of claim 11 , wherein the copolyetherester resin is present in an amount of from at or about 80 to at or about 96 weight percent; or the stearate is present in an amount of from 0.2 to 2 wt %; or the PTFE is present in an amount of from about 0.05 to 0.5 wt %; or the wax, if present, is present in an amount of from 0.2 to 3 wt %, based on the total weight of the copolyetherester composition.