초록 ▼

Moisture barrier resins comprising a film-forming, cross-linkable, partially hydrolyzed polymer and a cross-linking agent provide improved impermeability to moisture and extended release capabilities for various particles, substances and other core materials that are encapsulated with compositions w

Moisture barrier resins comprising a film-forming, cross-linkable, partially hydrolyzed polymer and a cross-linking agent provide improved impermeability to moisture and extended release capabilities for various particles, substances and other core materials that are encapsulated with compositions which contain these resins.

대표청구항 ▼

1. A cross-linked film formed from a moisture-barrier resin comprising a mixture of;(a) a film-forming, cross-linkable, partially hydrolyzed polymer; and (b) a cross-linking agent; wherein the polymer is hydrolyzed from about 44 to about 46 percent. 2. A moisture-barrier resin according to claim 1,

1. A cross-linked film formed from a moisture-barrier resin comprising a mixture of;(a) a film-forming, cross-linkable, partially hydrolyzed polymer; and (b) a cross-linking agent; wherein the polymer is hydrolyzed from about 44 to about 46 percent. 2. A moisture-barrier resin according to claim 1, wherein the ratio of polymer to cross-linking agent is about 1:0.2 to about 1:1.3. A moisture-barrier resin comprising a mixture of:(a) a film-forming, cross-linkable, partially hydrolyzed polymer; and (b) a cross-linking agent; wherein the polymer comprises poly (ethylene-vinyl acetate) having a melt index of about 35 to about 37 and having about 44 to about 46 percent of the vinyl acetate groups hydrolyzed to vinyl alcohol groups. 4. A moisture barrier resin according to claim 3, wherein the polymer has an ethylene content of about 60 to about 88 mol percent.5. A moisture barrier resin according to claim 3, wherein the polymer has a vinyl alcohol content of about 10 to about 14 percent.6. A moisture-barrier resin according to claim 5, wherein the ratio of polymer to cross-linking agent is about 1:0.3 to about 1:1.7. A moisture barrier resin according to claim 3, wherein the polymer has a vinyl alcohol content of about 12.5 to about 13 percent.8. A moisture barrier resin according to claim 3, wherein the polymer has a vinyl acetate content of about 16 to about 20 percent.9. A moisture barrier resin according to claim 3, wherein the polymer has a vinyl acetate content of about 17 to about 18 percent.