Claims
- 1. A multi-walled article wherein at least one wall of said article is comprised of a sheet of a copolyestercarbonate derived from a dihydric phenol; a carbonate precursor; and an aliphatic alpha omega dicarboxylic acid or ester precursor wherein the dicarboxylic acid or ester precursor has from 10 to about 20 carbon atoms, inclusive, and is chemically condensed in the copolyestercarbonate in quantities of from about 2 to 30 mole percent of the dihydric phenol.
- 2. The multi-walled article of claim 1, wherein the dicarboxylic acid or ester precursor has from 10 to about 14 carbon atoms, inclusive.
- 3. The multi-walled article of claim 1, wherein the mole percent is from about 8 to 15 mole percent.
- 4. The multi-walled article of claim 2, wherein the mole percent is from about 8 to 15 mole percent.
- 5. A multi-walled article wherein at least one wall of said article is comprised of a sheet of a copolyestercarbonate derived from a dihydric phenol, a carbonate precursor, and from about 2 to 30 mole percent of the dihydric phenol of an aliphatic alpha omega dicarboxylic acid or ester precursor wherein the dicarboxylic acid or ester precursor has from 8 to about 20 carbon atoms, inclusive, wherein the copolyestercarbonate is endcapped with a monophenolic compound which provides the copolyestercarbonate with better notched izod impact resistance and ductility after aging than a phenol endcapped copolyestercarbonate.
- 6. The multi-walled article of claim 5, wherein the dicarboxylic acid or ester precursor has from 8 to about 14 carbon atoms, inclusive.
- 7. The multi-walled article of claim 5, wherein the mole percent is from about 8 to 15 mole percent.
- 8. The multi-walled article of claim 5, wherein the copolyestercarbonate is endcapped with a compound selected from the group consisting of isooctylphenol, isononylphenol, cumylphenol or a chromanyl compound.
- 9. The multi-walled article of claim 8, wherein the compound is paracumylphenol.
- 10. The multi-walled article of claim 5, wherein the diacid is azelaic.
- 11. A method for processing polycarbonate resin which comprises extruding as a sheet a copolyestercarbonate having repeat units of the structure ##STR6## wherein: R is independently selected from halogen, monovalent hydrocarbon, and monovalent hydrocarbonoxy radicals;
- R.sup.1 is independently selected from halogen, monovalent hydrocarbon, and monovalent hydrocarbonoxy radicals;
- W is selected from divalent hydrocarbon radicals, ##STR7## n and n.sup.1 are independently selected from integers having a value of from 0 to 4 inclusive;
- b is either zero or one;
- X is an aliphatic group of about 6 to 18 carbon atoms, inclusive;
- c is from about 2 to 30 mole percent of the total units c+d; and
- with less work than required for a polycarbonate resin which does not have repeat units of the above formulae and which has the same or similar molecular weight.
- 12. The multi-walled article of claim 1, wherein said article comprises media storage devices or packaging materials.
- 13. The multi-walled article of claim 12, wherein said media storage device is selected from the group consisting of audio devises and digital devises.
- 14. The multi-walled article of claim 1, wherein said article comprises at least 90% by weight of the copolyestercarbonate.
- 15. The multi-walled article of claim 1, wherein said article comprises a second polymeric material.
- 16. The multi-walled article of claim 15, wherein said additional polymeric material comprises a polyester.
- 17. The multi-walled article of claim 16, wherein said polyester comprises polyethylene terephthalate, polybutylene terephthalate or cyclohexanedimethanol containing polyesters.
Parent Case Info
This is a divisional of application Ser. No. 08/044,852, now U.S. Pat. No. 5,321,114 filed on Apr. 8, 1993, which is a divisional of Ser. No. 07/627,517, filed Dec. 14, 1990, now abandoned, which is a continuation-in-part of Ser. No. 07/476,068 now abandoned filed Jan. 30, 1990, which is a continuation-in-part of U.S. Ser. No. 07/455,118, now abandoned filed Dec. 22, 1989.
US Referenced Citations (7)
Divisions (2)
|
Number |
Date |
Country |
Parent |
44852 |
Apr 1993 |
|
Parent |
627517 |
Dec 1990 |
|
Continuation in Parts (2)
|
Number |
Date |
Country |
Parent |
476068 |
Jan 1990 |
|
Parent |
455118 |
Dec 1989 |
|