POLYESTERCARBONATE COMPOSITIONS, ARTICLES FORMED THEREFROM, AND METHODS OF MANUFACTURE
A thermoplastic composition comprising, based on the total weight of the composition: 1 to 100 wt. % of a poly(aliphatic ester-carbonate) having a weight average molecular weight of 50,000 g/mol to 200,000 g/mol as measured by gel permeation chromatography using polystyrene standards, the poly(aliphatic ester-carbonate) comprising carbonate units of the formula (I) (I) and ester units of the formula (II) (II) wherein: T is a C 6-20 alkylene; R 1 is a C 6-30 aromatic group; and J is a C 2-10 alkylene, a C 6-20 cycloalkylene, a C 6-20 arylene, or a polyoxyalkylene in which the alkylene groups contain 2 to 6 carbons; and 0 to 99 wt. % of a bisphenol A homopolycarbonate having a weight average molecular weight of 50,000 g/mol to 200,000 g/mol as measured by gel permeation chromatography using polystyrene standards; wherein the thermoplastic composition has a heat deflection temperature of 100 ° C. to 130 ° C. determined in accordance with ASTM D648 at 1.6 MPa.
1 . A thermoplastic composition comprising, based on the total weight of the composition:
1 to 100 wt. % of a poly(aliphatic ester-carbonate) having a weight average molecular weight of 50,000 g/mol to 200,000 g/mol as measured by gel permeation chromatography using polystyrene standards, the poly(aliphatic ester-carbonate) comprising carbonate units of the formula
and
ester units of the formula
wherein:
T is a C 6-20 alkylene;
R 1 is a C 6-30 aromatic group; and
J is a C 2-10 alkylene, a C 6-20 cycloalkylene, a C 6-20 arylene, or a polyoxyalkylene in which the alkylene groups contain 2 to 6 carbons; and
0 to 99 wt. % of a bisphenol A homopolycarbonate having a weight average molecular weight of 50,000 g/mol to 200,000 g/mol as measured by gel permeation chromatography using polystyrene standards;
wherein the thermoplastic composition has a heat deflection temperature of 100° C. to 130° C. determined in accordance with ASTM D648 at 1.6 MPa.
2 . The thermoplastic composition of claim 1 , wherein the poly(aliphatic ester-carbonate) has a weight average molecular weight of 50,000 g/mol to 100,000 g/mol as measured by gel permeation chromatography using polystyrene standards.
3 . The thermoplastic composition of claim 1 , wherein the thermoplastic composition has a weight average molecular weight of 50,000 g/mol to 200,000 g/mol as measured by gel permeation chromatography using polystyrene standards.
4 . The thermoplastic composition of claim 1 , wherein R 1 and J are each independently derived from a dihydroxy compound of the formula
wherein
R a and R b are each independently a halogen, C 1-12 alkoxy, or C 1-12 alkyl,
p and q are each independently integers of 0 to 4, and
X a is a single bond, —O—, —S—, —S(O)—, —S(O) 2 —, —C(O)—, or a C 1-18 organic group.
5 . The thermoplastic composition of claim 1 , wherein R 1 and J have the formula
6 . The thermoplastic composition of claim 1 , wherein T is a C 6-12 linear alkylene.
7 . The thermoplastic composition of claim 1 , wherein T is a linear C 8 alkylene.
8 . The thermoplastic composition of claim 1 , wherein the poly(aliphatic ester-carbonate) comprises 1 to 30 mol % of ester units based on the total moles of the carbonate units and ester units in the poly(aliphatic ester-carbonate).
9 . The thermoplastic composition of claim 1 , wherein the bisphenol A homopolycarbonate has a weight average molecular weight of 50,000 to 100,000 g/mol measured by gel permeation chromatography using polystyrene standards.
10 . The thermoplastic composition of claim 1 comprising 20 to 80 wt. % of the poly(aliphatic ester-carbonate) and 20 to 80 wt. % of the bisphenol A homopolycarbonate based on the total weight of the thermoplastic composition.
11 . The thermoplastic composition of claim 1 , wherein the thermoplastic composition has a heat deflection temperature of 110° C. to 120° C. determined in accordance with ASTM D648 at 1.6 MPa.
12 . The thermoplastic composition of claim 1 , wherein the thermoplastic composition has a glass transition temperature of 130° C. to 150° C. determined by differential scanning calorimetry as per ASTM D3418 with a 20° C./min heating rate.
13 . The thermoplastic composition of claim 1 , wherein a sheet of the thermoplastic composition has no observable specks or gels over an area of at least 3 square meters when viewed at a distance of 0.3 meter without magnification.
14 . The thermoplastic composition of claim 1 , wherein an injection molded article of the thermoplastic composition having a thickness of 1.0 mm does not break after bending for 5 times.
15 . An article, wherein the article a molded article, a thermoformed article, an extruded sheet, one or more layers of a multi-layer article, a substrate for a coated article, or a substrate for an article made from the thermoplastic composition of claim 1 .
16 . The article of claim 15 , wherein the article is a multi-layer sheet or a heat sensitive pigment containing sheet.
17 . The article of claim 16 , wherein the multi-layer sheet comprises a base layer comprising the thermoplastic composition and a cap layer disposed on a side of the base layer, the cap layer comprising an acrylic, polyester, or the thermoplastic composition.
18 . The article of claim 16 , wherein the multi-layer sheet further comprises an embedded integrated circuit.
19 . The article of claim 15 , wherein the article is a smart card or a component of one or more of the following: an electronic device; imaging device; optical device; light fixture; home appliance; medical device; or automobile.
20 . A method of manufacturing an article of claim 15 comprising laminating, extruding or co-extruding, calendaring, injection molding, blow molding, film casting, or coating.