Claims
- 1. A multilayered bonded laminated structure comprising:
- (a) an aromatic polycarbonate resin layer; and
- (b) a polyamide resin layer exhibiting gas barrier properties, said polyamide resin comprising the reaction product of:
- (i) a dicarboxylic acid,
- (ii) a diamine, and
- (iii) an effective amount comprising at least about 3 mole percent of (iii) based on total moles of (ii) and (iii) of a polyamine of the general formula: ##STR11## wherein R.sub.6 and R.sub.7 are independently selected from aliphatic, aromatic, and unsaturated hydrocarbons and n is an integer of from 1 to 6, and m is an integer from 1 to 6 said polyamine containing an internal amine group which is less reactive than the terminal amine groups and said polyamine having a concentration greater than approximately 1% of the dicarboxylic acid concentration, based on total moles of dicarboxylic acid, said layers (a) and (b) being in direct adhesive contact with each other without the use of a tie layer therebetween.
- 2. The multilayered structures of claim 1 wherein said polyamide layer is at least 1 mil thick.
- 3. The multilayered structure of claim 1 wherein said acid is diphenylisophthalate of the formula: ##STR12##
- 4. The multilayered structure of claim 1 wherein said diamine is hexamethylenediamine.
- 5. The multilayered structure of claim 1 wherein said polyamines are from the group consisting of:
- (a) diethylene triamine
- (b) 3,3'-iminobispropylamine, and
- (c) bis(hexamethylene)triamine.
- 6. The multilayered structure of claim 1 wherein said structure is a hollow container.
- 7. The multilayered structure of claim 1 wherein said dicarboxylic acid is a mixture of isophthalic and terephthalic acid.
Parent Case Info
This is a continuation of application Ser. No. 07/423,309 filed Oct. 18, 1989, now abandoned.
US Referenced Citations (10)
Non-Patent Literature Citations (1)
Entry |
Japanese Abstract 63120645--World Patents Index Latest Accession No. 88-185220, Week 27, Derwent Publications Ltd. |
Continuations (1)
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Number |
Date |
Country |
Parent |
423309 |
Oct 1989 |
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