Water-soluble films
Water-soluble films made from copolymers of butene-diol and vinyl alcohol, wherein the films have improved barrier properties (such as low transmission rates for oxygen and water vapor) as well as good solubility.
1. A water soluble unit dose article comprising:
a first compartment
a second compartment, wherein the first compartment and the second compartment are disposed side-by-side; and
a film comprising one or more extruded layers comprising a copolymer of vinyl alcohol and butene-diol;
wherein the film has a crystallite size of about 10 Angstroms to about 35 Angstroms, when measured according to the Crystallite Size Test Method;
wherein the film comprises about 8% to about 30%, by weight of the film, of a plasticizer;
wherein the film has an overall thickness of about 25 micrometers to about 200 micrometers;
wherein the film has a dissolution time of less than 185 seconds, when measured according to the Dissolution Test Method;
wherein the film has a water vapor transmission rate of less than 205 g/ (m2·day) when measured according to the Water Vapor Transmission Test Method;
wherein the film forms at least a portion of the first compartment and/or the second compartment;
wherein the first compartment surrounds and encloses a first composition;
wherein the second compartment surrounds and encloses a second composition; and
wherein the first composition is different than the second composition.
2. The article of claim 1 , wherein the film has a crystallite size of about 10 Angstroms to about 30 Angstroms, when measured according to the Crystallite Size Test Method.
3. The article of claim 1 , wherein the film has a crystallite size of about 10 Angstroms to about 25 Angstroms, when measured according to the Crystallite Size Test Method.
4. The article of claim 1 , wherein the film has a crystallite size of about 15 Angstroms to about 25 Angstroms, when measured according to the Crystallite Size Test Method.
5. The article of claim 1 , wherein the film comprises about 8% to about 25%, by weight of the film, of a plasticizer.
6. The article of claim 1 , wherein the film comprises about 8% to about 20%, by weight of the film, of a plasticizer.
7. The article of claim 1 , wherein the film has a dissolution time of less than 165 seconds, when measured according to the Dissolution Test Method.
8. The article of claim 1 , wherein the film has a dissolution time of less than 155 seconds, when measured according to the Dissolution Test Method.
9. The article of claim 1 , wherein the film has a dissolution time of less than 145 seconds, when measured according to the Dissolution Test Method.
10. The article of claim 1 , wherein the film has a water vapor transmission rate of less than 165 g/(m2·day), when measured according to the Water Vapor Transmission Test Method.
11. The article of claim 1 , wherein the film has a water vapor transmission rate of less than 130 g/(m2·day), when measured according to the Water Vapor Transmission Test Method.
12. The article of claim 1 , wherein the film has a water vapor transmission rate of less than 95 g/(m2·day), when measured according to the Water Vapor Transmission Test Method.
13. The article of claim 1 , wherein the film has an oxygen transmission rate of less than 345 cm3/(m2·day), when measured according to the Oxygen Transmission Test Method.
14. The article of claim 1 , wherein the film has an oxygen transmission rate of less than 265 cm3/(m2·day), when measured according to the Oxygen Transmission Test Method.
15. The article of claim 1 , wherein the film has an oxygen transmission rate of less than 190 cm3/(m2·day), when measured according to the Oxygen Transmission Test Method.
16. The article of claim 1 , wherein the film has an overall thickness of about 25 micrometers to about 200 micrometers.
17. The article of claim 1 , wherein the film has an overall thickness of about 35 micrometers to about 150 micrometers.
18. The article of claim 1 , wherein the film has an overall thickness of about 50 micrometers to about 100 micrometers.
19. The article of claim 1 , wherein the first composition is a solid, and wherein the second composition is a liquid.
20. A water soluble unit dose article comprising:
a first compartment;
a second compartment, wherein the first compartment and the second compartment are disposed side-by-side; and
a third compartment, wherein the first compartment and the second compartment overlap the third compartment; and
a film comprising one or more extruded layers comprising a copolymer of vinyl alcohol and butene-diol;
wherein the film comprises about 8% to about 30%, by weight of the film, of a plasticizer;
wherein the film has an overall thickness of about 25 micrometers to about 200 micrometers;
wherein the film has a dissolution time of less than 185 seconds, when measured according to the Dissolution Test Method;
wherein the film has a water vapor transmission rate of less than 205 g/(m2·day) when measured according to the Water Vapor Transmission Test Method;
wherein the film forms at least a portion of the first compartment and/or the second compartment and/or the third compartment;
wherein the first compartment surrounds and encloses a first composition;
wherein the second compartment surrounds and encloses a second composition;
wherein the third compartment surrounds and encloses a third composition; and
wherein the third composition is different than the first and second compositions.