GLASS AND POLYMER RIGID ARTICLES
Multilayered molded articles comprising a glass layer interposed between first and second non-glass layers are described. These molded articles provide enhanced oxygen and moisture barrier protection to stored contents and are useful in medical, pharmaceutical, food, and research applications as containers and packaging materials.
1 . A multi-layer three-dimensional molded article, comprising:
a first layer;
a second layer; and
a glass layer between the first layer and the second layer, wherein the glass layer comprises glass having a glass transition temperature (T g ) of about 500° C. or less.
2 . A molded article according to claim 1 , wherein the glass comprises an alkali phosphate glass.
3 . A molded article according to claim 1 , wherein the glass comprises a tin fluorophosphate glass.
4 . A molded article according to claim 1 , wherein the glass comprises, on an elemental basis, tin in a mole percentage within a range from 7.4 to 30, fluorine in a mole percentage within a range from 4.9 to 47.2, phosphorus in a mole percentage within a range from 6.7 to 23.1, and oxygen in a mole percentage within a range from 20.8 to 61.5.
5 . A molded article according to claim 1 , wherein the glass comprises, on an elemental basis, tin in a mole percentage within a range from 12 to 17.1, fluorine in a mole percentage within a range from 11.2 to 24.3, phosphorus in a mole percentage within a range from 12.1 to 19.6, and oxygen in a mole percentage within a range from 43.3 to 61.1.
6 . A molded article according to claim 1 , wherein the glass comprises, on an elemental basis, tin in a mole percentage within a range from 15.4 to 17.1, fluorine in a mole percentage within a range from 19.6 to 24.3, phosphorus in a mole percentage within a range from 14.2 to 16.6, and oxygen in a mole percentage within a range from 43.3 to 56.
7 . A molded article according to claim 4 , wherein the glass has a T g of about 300° C. or less.
8 . A molded article according to claim 5 , wherein the glass has a T g of about 200° C. or less.
9 . A molded article according to claim 1 , wherein the first layer comprises a polymer and the second layer comprises a polymer.
10 . A molded article according to claim 9 , wherein the first and second layers comprise the same polymer.
11 . A molded article according to claim 10 , wherein the first and second layers comprise a cyclic olefin copolymer (COC).
12 . A molded article according to claim 1 , wherein a ratio of thickness of the glass layer to a thickness of the first layer is 1:3 or less, and wherein a ratio of thickness of the glass layer to a thickness of the second layer is 1:3 or less.
13 . A molded article according to claim 4 , wherein the ratio of thickness of the glass layer to the thickness of the first layer is in a range from about 1:3 to about 1:200, wherein the ratio of thickness of the glass layer to the thickness of the second layer is in a range from about 1:3 to about 1:200.
14 . A molded article according to claim 1 , wherein the glass layer has a thickness of about 50 micrometers or less.
15 . A molded article according to claim 4 , wherein the glass layer has a thickness of about 20 micrometers or less.
16 . A molded article according to claim 1 , wherein thicknesses of the first and second layers are substantially the same.
17 . A container comprising the molded article according to claim 1 .
18 . An assembly comprising:
the container of claim 17 ; and
a medicament stored in the container.
19 . An assembly according to claim 18 , wherein the container forms at least a part of a syringe.
20 . A method for forming a molded article according to claim 1 , comprising:
heating the glass and at least one non-glass material;
introducing the heated glass and non-glass material in a mold to form a glass layer disposed between first and second non-glass layers; and
cooling the heated glass and non-glass material to form the article.