High moisture transmission medical film

Claim 2

A laminate film comprising: a first layer, a second layer, and a third layer; with the first layer comprising a first polyetherester copolymer produced from the condensation reaction of dimethyl-1,4-cyclo hexane dicarboxylate and 1,4-cyclo hexane dimethanol and poly(tetramethylene ether glycol); the second layer comprising a material selected from the group consisting of an ethylene-vinyl acetate copolymer, an ethylene methacrylate copolymer, an anhydride modified polyolefin copolymer, and a polyether block amide copolymer; and the third layer comprising a blend of an ethylene methacrylate copolymer and a second polyetherester copolymer, wherein the second polyetherester copolymer is selected from the group consisting of: said first polyetherester copolymer; a block copolymer of polybutylene terephthalate and polyether glycols with the polybutylene terephthalate being formed from dimethyl terephthalate and 1,4-butane diol; and blends thereof; and wherein the total amount of said first polyetherester copolymer in the laminate film is greater than or equal to about 35 wt. % with respect to the total weight of the laminate film, and wherein said laminate film has a moisture vapor transmission rate greater than or equal to about 750 grams/m 2 per 24 hours.

Claim 3

The laminate film of claim 1 wherein said second layer further comprises a second material selected from the group consisting of a third polyetherester copolymer and a polyether block amide copolymer wherein the third polyetherester copolymer is selected from the group consisting of: said first polyetherester copolymer; a block copolymer of polybutylene terephthalate and polyether glycols with the polybutylene terephthalate being formed from dimethyl terephthalate and 1,4-butane diol; and blends thereof.

Claim 4

The laminate film of claim 2 wherein said second layer comprises a blend of an ethylene methacrylate copolymer and a fourth polyetherester copolymer wherein the fourth polyetherester copolymer is selected from the group consisting of: said first polyetherester copolymer; a block copolymer of polybutylene terephthalate and polyether glycols with the polybutylene terephthalate being formed from dimethyl terephthalate and 1,4-butane diol; and blends thereof.

Claim 5

The laminate film of claim 1 further comprising at least one additional layer formed from at least one material selected from the group consisting of an ethylene methacrylate copolymer, an anhydride modified polyolefin copolymer, a polyether block amide copolymer, a third polyetherester copolymer and blends thereof wherein the third polyetherester copolymer is selected from the group consisting of: said first polyetherester copolymer; a block copolymer of polybutylene terephthalate and polyether glycols with the polybutylene terephthalate being formed from dimethyl terephthalate and 1,4-butane diol; and blends thereof.

Claim 6

The laminate film of claim 1 wherein said first, second, and third layers are coextruded.

Claim 7

The laminate film of claim 1 further including a fourth layer adjacent said second layer, said fourth layer formed from a non-woven material.

Claim 8

A laminate film containing at least one layer comprising a first polyetherester copolymer produced from the condensation reaction of dimethyl-1,4-cyclo hexane dicarboxylate and 1,4-cyclo hexane dimethanol and poly(tetramethylene ether glycol) wherein the laminate film comprises: a central core layer formed from a first material selected from the group consisting of a second polyetherester copolymer, a polyether block amide copolymer, and blends thereof; two internal layers formed from a second material selected from the group consisting of a third polyetherester copolymer, a blend of a fourth polyetherester copolymer and a polyether block amide copolymer, and blends thereof; and at least one exterior sealant layer formed from a third material selected from the group consisting of a polyether block amide copolymer, an ethylene-vinyl acetate copolymer, an ethylene methacrylate copolymer, an anhydride modified ethylene-vinyl acetate copolymer, an anhydride modified low density polyethylene, and an anhydride modified linear low density polyethylene; wherein said core layer is positioned between said internal layers and wherein said second, third, and fourth polyetherester copolymers are each selected from the group consisting of: said first polyetherester copolymer; a block copolymer of polybutylene terephthalate and polyether glycols with the polybutylene terephthalate being formed from dimethyl terephthalate and 1,4-butane diol; and blends thereof; and wherein the total amount of said first polyetherester copolymer in the laminate film is greater than or equal to about 35 wt. % with respect to the total weight of the laminate film.

Claim 9

A laminate film containing at least one layer comprising a first polyetherester copolymer produced from the condensation reaction of dimethyl-1,4-cyclo hexane dicarboxylate and 1,4-cyclo hexane dimethanol and poly(tetramethylene ether glycol) wherein the laminate film comprises: a central core layer formed from a first material selected from the group consisting of a second polyetherester copolymer, a polyether block amide copolymer, and blends thereof; two internal layers formed from a second material selected from the group consisting of a third polyetherester copolymer, a blend of a fourth polyetherester copolymer and a polyether block amide copolymer, and blends thereof; and at least one exterior sealant layer formed from a third material selected from the group consisting of a polyether block amide copolymer, an ethylene-vinyl acetate copolymer, an ethylene methacrylate copolymer, an anhydride modified ethylene-vinyl acetate copolymer, an anhydride modified low density polyethylene, and an anhydride modified linear low density polyethylene; wherein said core layer is positioned between said internal layers and wherein said second, third, and fourth polyetherester copolymers are each selected from the group consisting of: said first polyetherester copolymer; a block copolymer of polybutylene terephthalate and polyether glycols with the polybutylene terephthalate being formed from dimethyl terephthalate and 1,4-butane diol; and blends thereof; and wherein the total amount of said first polyetherester copolymer in the laminate film is greater than or equal to about 35 wt. % with respect to the total weight of the laminate film.

Claim 10

The laminate film of claim 7 wherein said at least one exterior sealant layer further comprises a fourth material selected from the group consisting of a fifth polyetherester copolymer and a polyether block amide copolymer blended with said third material wherein the fifth polyetherester copolymer is selected from the group consisting of: said first polyetherester copolymer; a block copolymer of polybutylene terephthalate and polyether glycols with the polybutylene terephthalate being formed from dimethyl terephthalate and 1,4-butane diol; and blends thereof.

Claim 11

The laminate film of claim 7 wherein said laminate film has a moisture vapor transmission rate greater than or equal to about 750 grams/m 2 per 24 hours.

Claim 12

A laminate film comprising: a first layer comprising a first polyetherester copolymer produced from the condensation reaction of dimethyl-1,4-cyclo hexane dicarboxylate and 1,4-cyclo hexane dimethanol and poly(tetramethylene ether glycol); a second layer comprising a material selected from the group consisting of an ethylene-vinyl acetate copolymer, an ethylene methacrylate copolymer, an anhydride modified polyolefin copolymer, and a polyether block amide copolymer; a third layer comprising a polyether block amide copolymer; a fourth layer comprising a second polyetherester copolymer; and a fifth layer comprising a blend of an ethylene methacrylate copolymer and a third polyetherester copolymer; wherein said third layer is located between said first and fourth layers and said second and fifth layers are external layers positioned adjacent said first and fourth layers; and wherein the second and third polyetherester copolymers are each selected from the group consisting of: said first polyetherester copolymer; a block copolymer of polybutylene terephthalate and polyether glycols with the polybutylene terephthalate being formed from dimethyl terephthalate and 1,4-butane diol; and blends thereof; and wherein the total amount of said first polyetherester copolymer in the laminate film is greater than or equal to about 35 wt. % with respect to the total weight of the laminate film, and wherein said laminate film has a moisture vapor transmission rate greater than or equal to about 750 grams/m 2 per 24 hours.

Claim 13

A laminate film comprising: a first layer comprising a first polyetherester copolymer produced from the condensation reaction of dimethyl-1,4-cyclo hexane dicarboxylate and 1,4-cyclo hexane dimethanol and poly(tetramethylene ether glycol); a second layer comprising a material selected from the group consisting of an ethylene-vinyl acetate copolymer, an ethylene methacrylate copolymer, an anhydride modified polyolefin copolymer, and a polyether block amide copolymer; a third layer comprising a polyether block amide copolymer; a fourth layer comprising a second polyetherester copolymer; and a fifth layer comprising a blend of an ethylene methacrylate copolymer and a third polyetherester copolymer; wherein said third layer is located between said first and fourth layers and said second and fifth layers are external layers positioned adjacent said first and fourth layers; and wherein the second and third polyetherester copolymers are each selected from the group consisting of: said first polyetherester copolymer; a block copolymer of polybutylene terephthalate and polyether glycols with the polybutylene terephthalate being formed from dimethyl terephthalate and 1,4-butane diol; and blends thereof; and wherein the total amount of said first polyetherester copolymer in the laminate film is greater than or equal to about 35 wt. % with respect to the total weight of the laminate film, and wherein said laminate film has a moisture vapor transmission rate greater than or equal to about 750 grams/m 2 per 24 hours.