# US 2010/0168317 A1 · Poly(butylene terephthalate) compositions, methods of manufacture, and articles thereof

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- Number: US 2010/0168317 A1
- Document ID: US20100168317A1
- Status: Published application
- Kind: A1
- Application number: 12/346,280
- Filed: 2008-12-30
- Published: 2010-07-01
- Earliest claimed: 2008-12-30
- Inventors: Kristen CAHOON-Brister
- Web page: https://patentgrep.com/patent/US20100168317A1

## CPC

- C08L 67/02: Polyesters derived from dicarboxylic acids and dihydroxy compounds (C08L67/06 takes precedence)
- C08L 69/00: Compositions of polycarbonates; Compositions of derivatives of polycarbonates
- C08L 23/16: Ethylene-propylene or ethylene-propylene-diene copolymers
- C08L 27/06: Homopolymers or copolymers of vinyl chloride
- C08L 27/08: Homopolymers or copolymers of vinylidene chloride
- C08L 51/04: grafted on to rubbers
- C08L 55/02: ABS [Acrylonitrile-Butadiene-Styrene] polymers
- C08L 67/04: Polyesters derived from hydroxycarboxylic acids, e.g. lactones (C08L67/06 takes precedence)
- C08L 77/02: Polyamides derived from omega-amino carboxylic acids or from lactams thereof (C08L77/10 takes precedence)
- C08L: COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (compositions based on polymerisable monomers C08F, C08G; artificial filaments or fibres D01F; textile treating compositions D06)

## Abstract

A composition comprises, from 5 to 90 wt. % of a modified poly(butylene terephthalate) copolymer, wherein (i) the modified poly(butylene terephthalate) copolymer is derived from a first polymer comprising a poly(ethylene terephthalate) component selected from the group consisting of poly(ethylene terephthalate) homopolymers, poly(ethylene terephthalate) copolymers, and combinations thereof, in the presence of a second polymer selected from the group consisting of polyvinyl chlorides, polyvinylidene chlorides, polyamides, polylactic acid, and combinations thereof, and wherein (ii) the modified poly(butylene terephthalate) copolymer comprises at least one poly(ethylene terephthalate) component residue and a member selected from the group consisting of a second polymer selected from the group consisting of polyvinyl chlorides, polyvinylidene chlorides, polyamides, polylactic acid, and combinations thereof at least one residue derived from the second polymer, and combinations thereof; from 5 to 90 wt. % of a polycarbonate component; at least 1 wt. % of an impact modifier component.

## Claims

### Claim 1

A composition comprising, based on the total weight of the composition:
from 5 to 90 wt. % of a modified poly(butylene terephthalate) copolymer, wherein
(i) the modified poly(butylene terephthalate) copolymer is derived from a first polymer comprising a poly(ethylene terephthalate) component selected from the group consisting of poly(ethylene terephthalate) homopolymers, poly(ethylene terephthalate) copolymers, and combinations thereof, in the presence of a second polymer selected from the group consisting of polyvinyl chlorides, polyvinylidene chlorides, polyamides, polylactic acid, and combinations thereof, and wherein
(ii) the modified poly(butylene terephthalate) copolymer comprises (a) at least one poly(ethylene terephthalate) component residue and (b) a member selected from the group consisting of (I) a second polymer selected from the group consisting of polyvinyl chlorides, polyvinylidene chlorides, polyamides, polylactic acid, and combinations thereof (II) at least one residue derived from the second polymer, and (III) combinations thereof;
from 5 to 90 wt. % of a polycarbonate component;
at least 1 wt. % of an impact modifier component, and
optionally, from 0 to 5 wt. % of at least one additive.

### Claim 2 (depends on 1)

The composition of claim 1, wherein the at least one poly(ethylene terephthalate) component residue is selected from the group consisting of ethylene glycol groups, diethylene glycol groups, isophthalic acid groups, antimony-containing compounds, germanium-containing compounds, titanium-containing compounds, cobalt-containing compounds, tin containing compounds, aluminum, aluminum salts, 1,3-cyclohexanedimethanol isomers, 1,4-cyclohexanedimethanol isomers, alkali salts, alkaline earth metal salts, phosphorous-containing compounds and anions, sulfur-containing compounds and anions, naphthalene dicarboxylic acids, 1,3-propanediol groups, and combinations thereof.

### Claim 3 (depends on 1)

The composition of claim 1, wherein the at least one poly(ethylene terephthalate) component residue is selected from the group consisting of mixtures of ethylene glycol, diethylene glycol, isophthalic acid, and combinations thereof.

### Claim 4 (depends on 1)

The composition of claim 1, wherein the at least one poly(ethylene terephthalate) component residue is selected from the group consisting of cis isomer of 1,3-cyclohexanedimethanol, cis isomer of 1,4-cyclohexanedimethanol, the trans isomer of 1,3-cyclohexanedimethanol, trans isomer of 1,4-cyclohexanedimethanol and combinations thereof.

### Claim 5 (depends on 1)

The composition of claim 1, wherein the at least one poly(ethylene terephthalate) component residue is selected from the group consisting of mixtures of ethylene glycol, diethylene glycol, cobalt-containing compounds, antimony-containing compounds, isophthalic acid groups, and combinations thereof.

### Claim 6 (depends on 1)

The composition of claim 1, wherein the at least one poly(ethylene terephthalate) component residue is selected from the group consisting of ethylene glycol groups, diethylene glycol groups, and cyclohexanedimethanol groups and is in an amount from 0.1 to 10 mole %, based on 100 mole % of glycol in the modified poly(butylene terephthalate) copolymer.

### Claim 7 (depends on 1)

The composition of claim 1, wherein the at least one poly(ethylene terephthalate) component residue further comprises isophthalic acid groups in an amount from 0 to 10 mole %, based on 100 mole % of acid functionality in the modified poly(butylene terephthalate) random copolymer.

### Claim 8 (depends on 1)

The composition of claim 1, wherein the modified poly(butylene terephthalate) copolymer has a melting temperature of more than 200° C. and an intrinsic viscosity ranging from 0.5 to 1.4 dL/g.

### Claim 9 (depends on 1)

The composition of claim 1, wherein the second polymer comprises more than 0 to less than 115 ppm of polyvinyl chloride as the second polymer, based on the total parts by weight of the poly(ethylene terephthalate) component.

### Claim 10 (depends on 1)

The composition of claim 1, wherein the second polymer comprises more than 0 to less than 575 ppm of polyvinyl chloride as the second polymer, based on the total parts by weight of the poly(ethylene terephthalate) component; wherein a Dynatup disk having a surface area of approximately 81 cm2 and molded from the composition has less than 50 black specks present on the surface as determined by visual inspection with the unaided eye.

### Claim 11 (depends on 1)

The composition of claim 1, wherein the composition comprises more than 0 to less than 2.9 wt. % of a polyamide as the second polymer, based on the total weight of the poly(ethylene terephthalate) component, wherein the polyamide is Nylon 6.

### Claim 12 (depends on 11)

The composition of claim 11, wherein the composition has a heat deflection temperature from 90° C. to 110° C., measured at 0.455 MPa in accordance with ASTM D-648.

### Claim 13 (depends on 1)

The composition of claim 1, wherein the composition comprises more than 0 to less than 2.9 wt. % of a polyamide as the second polymer, based on the total weight of the poly(ethylene terephthalate) component, wherein the polyamide is Nylon 6,6.

### Claim 14 (depends on 12)

The composition of claim 12, wherein the composition has a heat deflection temperature from 80° C. to 110° C., measured at 0.455 MPa in accordance with ASTM D648.

### Claim 15 (depends on 1)

The composition of claim 1, wherein the composition comprises more than 0 to less than 5.75 wt. % of a polylactic acid as the second polymer, based on the total weight of the poly(ethylene terephthalate) component.

### Claim 16 (depends on 15)

The composition of claim 15, wherein the composition has a heat deflection temperature from 80° C. to 90° C., measured at 1.82 MPa in accordance with ASTM D648.

### Claim 17 (depends on 14)

The composition of claim 14, wherein the composition has a heat deflection temperature from 100° C. to 110° C., measured at 0.455 MPa in accordance with ASTM D648.

### Claim 18 (depends on 1)

The composition of claim 1, wherein the polycarbonate comprises units derived from bisphenol A.

### Claim 19 (depends on 1)

The composition of claim 1, wherein the impact modifier is selected from the group consisting of methacrylate-butadiene-styrene copolymers, acrylate elastomers, acrylonitrile-styrene-acrylate copolymers, acrylonitrile-butadiene-styrene copolymers, high rubber graft acrylonitrile-butadiene-styrene copolymers, acrylate-olefin copolymers, silicone rubbers, silicone-acrylic rubbers, ethylene-propylene non-conjugated diene elastomers, acrylonitrile-styrene-ethylene-propylene non-conjugated diene elastomers, ethylene-methyl methacrylate-glycidyl methacrylate copolymers, and combinations thereof.

### Claim 20 (depends on 1)

The composition of claim 1, wherein the additive is selected from the group consisting of fillers, reinforcing agents, flame retardants, heat stabilizers, antioxidants, quenchers, mold release agents, polytetrafluoroethylene, light absorbers, polytetrafluoroethylene-poly(styrene-co-acrylonitrile) mixtures, and combinations thereof.

### Claim 21 (depends on 1)

The composition of claim 1, further comprising from more than 0 to 5000 ppm of a quencher component.

### Claim 22 (depends on 1)

The composition of claim 1, further comprising from more than 0 to 15 wt. % of a flame retarding component.

### Claim 23 (depends on 1)

The composition of claim 1, further comprising from more than 0 to 5 wt. % of a carboxy reactive component.

### Claim 24 (depends on 1)

A method for the manufacture of a composition, comprising blending the components of the composition of claim 1.

### Claim 25 (depends on 1)

An article comprising the composition of claim 1.

### Claim 26 (depends on 25)

The article of claim 25, in the form of a member selected from the group consisting of energy absorbers, fuel tanks, and tractor hoods.

### Claim 27 (depends on 1)

A method of forming an article, comprising shaping the compositions of claim 1 by extruding or molding.

### Claim 28

A composition comprising
from 30 to 90 wt. % of a modified poly(butylene terephthalate) copolymer comprising (a) at least one residue derived from a first polymer comprising a poly(ethylene terephthalate) component selected from the group consisting of poly(ethylene terephthalate) homopolymers, poly(ethylene terephthalate) copolymers, and combinations thereof; and (b) a member selected from the group consisting of
(i) a second polymer selected from the group consisting of more than 0 to less than 115 ppm of a polyvinyl chloride, more than 0 to less than 115 ppm of a polyvinylidene chloride, more than 0 to less than 2.9 wt. % of a polyamide, more than 0 to less than 5.75 wt. % of a polylactic acid, and combinations thereof, each based on parts by weight or weight of the poly(ethylene terephthalate) component,
(ii) at least one residue derived from the second polymer, and
(iii) combinations thereof;
wherein the residue derived from the poly(ethylene terephthalate) component is selected from the group consisting of ethylene glycol groups, diethylene glycol groups, isophthalic acid groups, antimony-containing compounds, germanium-containing compounds, titanium-containing compounds, cobalt-containing compounds, tin containing compounds, aluminum, aluminum salts, 1,3-cyclohexanedimethanol isomers, 1,4-cyclohexanedimethanol isomers, alkali salts, alkaline earth metal salts, phosphorous-containing compounds and anions, sulfur-containing compounds and anions, napthalene dicarboxylic acids, 1,3-propanediol groups, and combinations thereof;
from 5 to 40 wt. % of a polycarbonate component;
from more than 0 to 20 wt. % of an impact modifier component, and
optionally, from 0 to 5 wt. % of an additive selected from the group consisting of heat stabilizers, pentaerythritol, antioxidants, quenchers, mold release agents, polytetrafluoroethylene, light absorbers, polytetrafluoroethylene-poly(styrene-co-acrylonitrile) mixtures, and combinations thereof; and
from 0 to 20 wt. % of a flame retardant.

### Claim 29 (depends on 28)

The composition of claim 28, wherein the composition comprises less than 5 wt. % of a member selected from the group consisting of fillers, nucleating agents, and combinations thereof, based on the weight of the composition.

### Claim 30 (depends on 28)

An article comprising the composition of claim 28.

### Claim 31

A composition comprising
from 5 to 90 wt. % of a modified poly(butylene terephthalate) copolymer comprising (a) at least one residue derived from a first polymer comprising a poly(ethylene terephthalate) component selected from the group consisting of poly(ethylene terephthalate) homopolymers, poly(ethylene terephthalate) copolymers, and combinations thereof; and (b) a member selected from the group consisting of
(i) a second polymer selected from the group consisting of polyvinyl chlorides present in an amount of more than 0 to less than 115 ppm, polyvinylidene chlorides present in an amount of more than 0 to less than 115 ppm, polyamides present in an amount of more than 0 to less than 2.9 wt. %, polylactic acid present in an amount of more than 0 to less than 5.75 wt. %, and combinations thereof, each based on parts by weight or weight of the poly(ethylene terephthalate) component,
(ii) at least one residue derived from the second polymer, and
(iii) combinations thereof, wherein the residue derived from the poly(ethylene terephthalate) component comprises ethylene glycol groups, diethylene glycol groups, and antimony-containing compounds;
from 5 to 60 wt. % of a polycarbonate component;
from more than 0 to 20 wt. % of an impact modifier component; and
optionally, from 0 to 5 wt. % of an additive selected from the group consisting of heat stabilizers, pentaerythritol, antioxidants, quenchers, mold release agents, polytetrafluoroethylene, light absorbers, polytetrafluoroethylene-poly(styrene-co-acrylonitrile) mixtures, and combinations thereof; and
from 0 to 20 wt. % of a flame retardant.

### Claim 32 (depends on 31)

The composition of claim 31, wherein the residue derived from the poly(ethylene terephthalate) component further comprises isophthalic acid.

### Claim 33 (depends on 31)

The composition of claim 31, wherein the composition comprises less than 5 wt. % of a member selected from the group consisting of fillers, nucleating agents, and combinations thereof, based on the weight of the composition.

### Claim 34

A composition comprising, based on the total weight of the composition:
from 5 to 90 wt. % of a modified poly(butylene terephthalate) copolymer, wherein
(i) the modified poly(butylene terephthalate) copolymer is derived from a polymer composite comprising (a) a first polymer comprising a poly(ethylene terephthalate) component selected from the group consisting of poly(ethylene terephthalate) homopolymers, poly(ethylene terephthalate) copolymers, and combinations thereof, and (b) from more than 0 to less than 2.9 wt. % of Nylon 6, based on the weight of the polymer composite, and wherein
(ii) the modified poly(butylene terephthalate) copolymer comprises a member selected from the group consisting of a residue derived from the poly(ethylene terephthalate) homopolymer, a residue derived from the poly(ethylene terephthalate) copolymer, a residue derived from the Nylon 6, and combinations thereof;
from 5 to 60 wt. % of a polycarbonate component;
at least 1 wt. % of an impact modifier component; and
optionally, from 0 to 5 wt. % of an additive;
wherein the composition has a heat deflection temperature from 85° C. to 100° C., measured at 0.455 MPa in accordance with ASTM D648.

### Claim 35 (depends on 34)

The composition of claim 34, wherein the composition comprises less than 5 wt. % of a member selected from the group consisting of fillers, nucleating agents, and combinations thereof, based on the weight of the composition.

### Claim 36 (depends on 34)

An article comprising the composition of claim 34.

### Claim 37

A composition comprising, based on the total weight of the composition:
from 5 to 90 wt. % of a modified poly(butylene terephthalate) copolymer, wherein
(i) the modified poly(butylene terephthalate) copolymer is derived from a polymer composite comprising (a) a first polymer comprising a poly(ethylene terephthalate) component selected from the group consisting of poly(ethylene terephthalate) homopolymers, poly(ethylene terephthalate) copolymers, and combinations thereof, and (b) from more than 0 to less than 2.9 wt. % of Nylon 6,6 based on the weight of the polymer composite, and wherein
(ii) the modified poly(butylene terephthalate) copolymer comprises a member selected from the group consisting of a residue derived from the poly(ethylene terephthalate) homopolymer, a residue derived from the poly(ethylene terephthalate) copolymer, a residue derived from the Nylon 6,6, and combinations thereof;
from 5 to 90 wt. % of a polycarbonate component;
at least 1 wt. % of an impact modifier component; and
optionally, from 0 to 5 wt. % of an additive;
wherein the composition has a heat deflection temperature from 85° C. to 100° C., measured at 0.455 MPa in accordance with ASTM D648.

### Claim 38 (depends on 37)

The composition of claim 37, wherein the composition comprises less than 5 wt. % of a member selected from the group consisting of fillers, nucleating agents, and combinations thereof, based on the weight of the composition.

### Claim 39 (depends on 37)

An article comprising the composition of claim 37.

### Claim 40

A composition comprising, based on the total weight of the composition:
from 5 to 90 wt. % of a modified poly(butylene terephthalate) copolymer, wherein
(i) the modified poly(butylene terephthalate) copolymer is derived from a polymer composite comprising (a) a first polymer comprising a poly(ethylene terephthalate) component selected from the group consisting of poly(ethylene terephthalate) homopolymers, poly(ethylene terephthalate) copolymers, and combinations thereof, and (b) from more than 0 to less than 20 wt % wt. % of polylactic acid, based on the weight of the composite polymer component, and wherein
(ii) The modified poly(butylene terephthalate) copolymer comprises a member selected from the group consisting of a residue derived from the poly(ethylene terephthalate) homopolymer, a residue derived from the poly(ethylene terephthalate) copolymer, a residue derived from the polylactic acid, and combinations thereof;
from 5 to 60 wt. % of a polycarbonate component;
at least 1 wt. % of an impact modifier component; and
optionally, from 0 to 5 wt. % of an additive;
wherein the composition has a heat deflection temperature from 75° C. to 100° C., measured at 1.82 MPa in accordance with ASTM D648.

### Claim 41 (depends on 40)

An article comprising the composition of claim 40.

### Claim 42 (depends on 40)

The composition of claim 40, wherein the composition comprises less than 5 wt. % of a member selected from the group consisting of fillers, nucleating agents, and combinations thereof, based on the weight of the composition.