Claims
- 1. A composition having a smooth, glossy surface in molded form when molded at mold temperatures of between 85.degree.-110.degree. C., which composition consists essentially of:
- A. polyethylene terephthalate having an intrinsic viscosity of at least about 0.4;
- B. between about 10 and about 60 percent by weight reinforcing or filling material;
- C. material present in an amount sufficient to provide .DELTA.H.sub.H /.DELTA.H.sub.c ratio of less than 0.25 to a mixture of components A, B and C, said material consisting essentially of at least one sodium or potassium salt of a carboxyl containing organic polymer;
- D. organic ester present in an amount sufficient to provide a Tpk at least 4.degree. C. lower than the Tpk of a mixture of components A, B and C, selected from the product of an aliphatic carboxylic acid of 1 to 20 carbon atoms containing 1 to 3 carboxyl groups, and an alcohol of the formula HO(R"O).sub.y R'" where R" is --H or an aliphatic hydrocarbon radical of 2-20 carbon atoms, and when R'" is --H, y is a cardinal number between 2 and 15, and when R'" is an aliphatic hydrocarbon radical, y is a cardinal number between 1 and 15.
- 2. The composition of claim 1 wherein the salt of a carboxyl containing organic polymer of Component C is the sodium or potassium salt of a copolymer of an olefin and acrylic or methacrylic acid.
- 3. The composition of claim 1 wherein the salt of a carboxyl containing organic polymer of Component C is the sodium salt of a copolymer of ethylene and methacrylic acid in which at least 30% of the carboxyl groups are neutralized with sodium.
- 4. A composition having a smooth, glossy surface in molded form when molded at mold temperatures of between 85.degree.-110.degree. C., which composition consists essentially of;
- A. polyethylene terephthalate having an intrinsic viscosity of at least about 0.4;
- B. between about 10 and about 60 percent by weight reinforcing or filling material;
- C. material present in an amount sufficient to provide a .DELTA.H.sub.H /.DELTA.H.sub.c ratio of less than 0.25 to a mixture of components A, B and C, said material consisting essentially of at least one sodium or potassium salt of a copolymer of an olefin and acrylic or methacrylic acid;
- D. organic ester present in an amount sufficient to provide a Tpk at least 4.degree. C. lower than the Tpk of a mixture of components A, B and C, selected from the product of an aliphatic carboxylic acid of 4 to 10 carbon atoms having 1 or 2 carboxyl groups, and an alcohol of the formula HO(R"O).sub.y R'" wherein R" is an aliphatic hydrocarbon radical of 2-15 carbon atoms, R'" is --H or an aliphatic hydrocarbon radical of 2-20 carbon atoms, and when R'" is --H, y is a cardinal number between 2 and 15, and when R'" is an aliphatic hydrocarbon radical, y is a cardinal number between 1 and 15.
- 5. The composition of claims 1, 2 or 4 wherein Component B is glass fiber.
- 6. The composition of claims 1, 2 or 4 wherein Component B is glass fiber and said composition also contains 0.1 to 1.5 percent by weight of an epoxy compound.
- 7. The composition of claims 1, 2 or 4 wherein Component B is mica.
- 8. The composition of claims 1, 2 or 4 wherein Component B is a mixture of glass fiber and mica.
- 9. The composition of claim 1 in melt-extruded form.
- 10. A process for manufacturing a molded article having a smooth, glossy surface which comprises shaping a composition defined in claims 1, 2, 3 or 4 in a mold at a surface mold temperature of below 110.degree. C.
CROSS REFERENCE TO RELATED APPLICATIONS
This application is a continuation of application Ser. No. 360,569 filed Nov. 22, 1982 abandoned which is a c.i.p. of application Ser. No. 009,295 filed Feb. 5, 1979 abandoned which is c.i.p. of application Ser. No. 882,219 filed Feb. 28, 1978 abandoned.
US Referenced Citations (3)
Foreign Referenced Citations (1)
Number |
Date |
Country |
1117139 |
Jun 1968 |
GBX |
Continuations (1)
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Number |
Date |
Country |
Parent |
360569 |
Mar 1982 |
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Continuation in Parts (2)
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Number |
Date |
Country |
Parent |
009295 |
Feb 1979 |
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Parent |
882219 |
Feb 1978 |
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