Invention Grant
- Patent Title: Containers comprising polyester compositions which comprise cyclobutanediol
- Patent Title (中): 包含包含环丁二醇的聚酯组合物的容器
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Application No.: US13016147Application Date: 2011-01-28
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Publication No.: US08354491B2Publication Date: 2013-01-15
- Inventor: Emmett Dudley Crawford , Thomas Joseph Pecorini , David Scott Porter , Gary Wayne Connell , Michael James Keegan
- Applicant: Emmett Dudley Crawford , Thomas Joseph Pecorini , David Scott Porter , Gary Wayne Connell , Michael James Keegan
- Applicant Address: US TN Kingsport
- Assignee: Eastman Chemical Company
- Current Assignee: Eastman Chemical Company
- Current Assignee Address: US TN Kingsport
- Agent Betty Joy Boshears
- Main IPC: C08G63/00
- IPC: C08G63/00 ; C08L67/02

Abstract:
Described are container(s) comprising polyesters comprising (a) a dicarboxylic acid component comprising terephthalic acid residues; optionally, aromatic dicarboxylic acid or aliphatic dicarboxylic acid residues; and (b) a glycol component comprising 15 to 50 mole % 2,2,4,4-tetramethyl-1,3-cyclobutanediol residues and 50 to 85 mole % 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 the polyester is from 0.50 to 0.75 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.5 g/100 ml at 25° 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 1/8-inch thick bar; and 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.
Public/Granted literature
- US20110146022A1 CONTAINERS COMPRISING POLYESTER COMPOSITIONS WHICH COMPRISE CYCLOBUTANEDIOL Public/Granted day:2011-06-23
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