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US 4,302,511 AGranted
Polyamide laminates containing copper salts
AssigneeAllied Corporation
InventorsHarold W. Tuller, Stephen R. Schulze, Charles D. Mason
Life of this patent
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Abstract
A laminate structure having at least one layer of a polyamide containing from 0.001 to 1.0 parts, based on the weight of the polyamide, of a copper cation containing material. The polyamide layer is contiguous to at least one opposing layer. The opposing layer contains an effective amount of functional groups selected from the group consisting of acid groups, metal salts of the acid, acid anhydrides, carbonates and mixtures thereof.
Claims58
A laminate structure comprised of:
- at least one layer of a polyamide containing from 0.001 to 1.0 parts, based on the weight of the polyamide, of a copper cation containing material;
- at least one layer of an interpolymer comprised of units derived from ethylene and a comonomer selected from the group consisting of acrylic acid, methacrylic acid, and maleic anhydride;
- and
- wherein at least one polyamide layer is contiguous to at least one interpolymer layer.
1 more element
A laminate structure comprised of:
- at least one layer of a polyamide containing from 0.001 to 1.0 parts, based on the weight of the polyamide, of a copper cation containing material;
- at least one layer of an alkylenic interpolymer containing functional groups selected from the group consisting of acid groups, metal salts of said acids wherein the metal is selected from Groups I, II, III, IV-A and VII of the Periodic Table of the Elements, acid anhydrides, or mixtures thereof;
- and
- wherein at least one polyamide layer is bonded to at least one alkylenic interpolymer layer.
1 more element
A laminate structure comprised of:
- at least one layer of polyamide containing from 0.001 to 1.0 parts, based on the weight of the polyamide, of a copper cation containing material;
- at least one layer of a graft polymer comprised of an alkylenic interpolymer having olefinic acid anhydride grafted thereto;
- wherein at least one polyamide layer is contiguous to at least one graft polymer layer.
A laminate structure comprised of:
- at least one layer of polyamide containing from 0.001 to 1.0 parts, based on the weight of the polyamide, of a copper cation containing material;
- at least one layer comprised of one or more condensation polymers other than polyamide and containing pendent functional groups selected from the group consisting of acid groups, metal salts of said acids wherein the metal is selected from Groups I, II, III, IV-A and VII of the Periodic Table of the Elements, acid anhydrides, or mixtures thereof;
- and
- wherein at least one polyamide layer is contiguous to at least one condensation polymer layer.
1 more element
A laminate structure comprised of:
- at least one layer of polyamide containing from 0.001 to 1.0 parts, based on the weight of the polyamide, of a copper cation containing material;
- at least one layer comprised of polyethylene terephthalate or a polycarbonate of bisphenol-A, wherein said polymers have been melt blended to provide pendent functional groups selected from the group consisting of carboxylic acid and carbonate;
- and
- wherein at least one polyamide layer is contiguous to at least one polyethylene terephthalate or polycarbonate layer.
1 more element
A laminate structure comprised of:
- at least one layer comprised of at least 50 weight percent, based on the total weight of the layer of polyamide, containing from 0.001 to 1.0 parts, based on the weight of the polyamide of a copper cation containing material;
- at least one other layer comprised of one or more polymers wherein said layer contains an effective amount of pendent functional groups selected from the group consisting of acid groups, metal salts of said acids wherein the metal is selected from Groups I, II, III, IV-A and VII of the Periodic Table of the Elements, acid anhydrides, and mixtures thereof;
- and
- wherein at least one polyamide containing layer is contiguous to at least one said other layer.
1 more element
Dependencies are inferred from the claim text.