Application US20210107263

BIODEGRADABLE AND/OR HOME COMPOSTABLE SACHET CONTAINING A SOLID ARTICLE
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US20210107263

1. A sachet product comprising a biodegradable and/or home compostable sachet comprising a front film and a back film comprising: (13) (3)

a. a front middle layer and a back middle layer comprising a paper having greater than 85% cellulose content;

b. a front inner layer joined to the front middle layer and a back inner layer joined to the back middle layer wherein the front inner layer and back inner layer comprises an inner layer material selected from the group consisting of polyvinyl alcohol, polybutylene succinate, polybutylene succinate adipate, polyhydroxylalkonate, polyvinylidene chloride, carnauba wax, biodegradable thermo-plastic starch, and combinations thereof;

wherein front inner layer and back inner layer being permanently joined around a perimeter to form a seal, the seal forming a compartment adapted for storing a solid article comprising an open cell foam comprising: from about 10% to about 40%, by total weight of the article, of a water-soluble polymer;

from about 5% to about 80%, by total weight of the article, surfactant selected from the group consisting of anionic surfactants, cationic surfactants, nonionic surfactants, amphoteric surfactants, zwitterionic surfactants, and combinations thereof;

a Percent Open Cell Content of from about 80% to 100%;

an Overall Average Pore Size of from about 100 μm to about 2000 μm.

2. The sachet product of claim 1, wherein the front film and the back film further comprise a front outer layer joined to the front middle layer and a back outer layer joined to the back middle layer wherein front outer layer and back outer layer comprise a biodegradable wax. (1) (0)

4. The sachet product of claim 1, wherein the inner layer material comprises polyvinyl alcohol and/or polyhydroxylalkonate. (0)

5. The sachet product of claim 1, wherein the sachet is biodegradable and compostable. (0)

6. The sachet product of claim 1, wherein the sachet is recyclable. (0)

7. The sachet product of claim 1, wherein the sachet is a four-seal sachet. (0)

8. The sachet product of claim 1, wherein the sachet comprises a tear resistance of less than 550 nM. (0)

9. The sachet product of claim 1, wherein the seal comprises a seal strength of from about 250 to about 700 N/m. (0)

10. The sachet product of claim 1, where after 2 weeks of storage at 40° C., 75% RH the article comprises a Hand Dissolution value of less than 15 strokes and a final moisture content of from about 0.5% to about 25%. (0)

11. The sachet product of claim 1, wherein the front middle layer and back middle layer comprise a grammage of from about 30 to about 120 gsm. (0)

12. The sachet product of claim 1, wherein the front inner layer and the back inner layer comprise a thickness from about 3 μm to about 40 μm. (0)

13. The sachet product of claim 1, wherein the water-soluble polymer is selected from the group consisting of polyvinyl alcohols, polyvinylpyrrolidones, polyalkylene oxides, starch and starch derivatives, pullulan, gelatin, hydroxypropylmethylcelluloses, methycelluloses, and carboxymethycelluloses. In another example, water-soluble polymers may include polyvinyl alcohols, hydroxypropylmethylcelluloses, and combinations thereof. (0)

14. The sachet product of claim 1, wherein the front inner layer and the back inner layer comprises a grease resistance greater than 6. (0)

15. The sachet product of claim 1, further comprising an additional layer joined between the front middle layer and the front inner layer and an additional layer joined between the back middle layer and the back inner layer wherein the additional layers comprise an MVTR less than 300 g/m²/day at 38° C. and 98% RH. (0)

16. A sachet product comprising a biodegradable and/or home compostable sachet comprising a front film and a back film comprising: (4) (7)

a. a front middle layer and a back middle layer comprise a material selected from the group consisting of cellulose, cellulose acetate, metalized cellulose, metalized cellulose acetate, and combinations thereof;

b. a front inner layer joined to the front outer layer and a back inner layer joined to the back outer layer wherein the front inner layer and the back inner layer comprise a material selected from the group consisting of polyvinyl alcohol, polybutylene succinate, polybutylene succinate adipate, polyhydroxylalkonate, carnauba wax, a biodegradable thermo-plastic starch, polyvinylidene chloride, and combinations thereof;

from about 10% to about 40%, by total weight of the article, of a water-soluble polymer;

a Percent Open Cell Content of from about 80% to 100%;

an Overall Average Pore Size of from about 100 μm to about 2000 μm.

17. The sachet product of claim 16, wherein after storage for a period of 2 weeks the sachet product can satisfy the Accelerated Stability Test. (0)

18. The sachet product of claim 16, wherein the sachet further comprises a front outer layer joined to the front middle layer and a back outer layer joined to the back middle layer; wherein the second front outer layer and the second back outer layer comprise paper having greater than 85% cellulose content. (0)

19. The sachet product of claim 16, wherein the inner layer comprises polybutylene succinate adipate and wherein the polybutylene succinate adipate is metalized. (0)

20. The sachet product of claim 16, further comprising a front biodegradable adhesive layer between the front middle layer and the front inner layer and a back biodegradable adhesive layer between the back middle layer and the back inner layer. (0)

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Application US20210107263

BIODEGRADABLE AND/OR HOME COMPOSTABLE SACHET CONTAINING A SOLID ARTICLE

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