Injection stretch blow container

Details Injection stretch blow container Injection stretch blow container

1987-03-23

1988-09-27

Epstein, Henry F.

Stock material or miscellaneous articles

Hollow or container type article

Cellular material derived from plant or animal source

215 1C, 264537, 525 57, 428483, B65D 126, C08L 2904

Patent

active

047741147

ABSTRACT:
An injection stretch blow container consisting of a combination of 97 to 70 parts by weight of saturated polyester and 3 to 30 parts by weight of a saponification product of an ethylene-vinyl acetate copolymer, said container having many areas, particularly at the body wall portion of said container in each of which areas substantially two-dimensional thin layers of said saponification product of said ethylene-vinyl acetate copolymer are laminated in parallel to the wall surface of said container in a matrix of saturated polyester, said saponification product of said ethylene-vinyl acetate copolymer in said area (20.times.20.mu.; vertical section or longitudinal section of the body wall of said container) is 0.001 to 1 .mu.m in average thickness and at least 5 in average aspect ratio and the laminated structural index represented by the following formula is at least 5:

REFERENCES:
patent: 4501781 (1985-02-01), Kushida
patent: 4576988 (1986-03-01), Tanaka et al.
patent: 4608286 (1986-08-01), Motoishi et al.
patent: 4613644 (1986-09-01), Moritani et al.
patent: 4619849 (1986-10-01), Anzawa et al.
patent: 4636551 (1987-01-01), Okaya et al.
patent: 4640870 (1987-02-01), Akazawa et al.
patent: 4645695 (1987-02-01), Negi et al.
patent: 4675219 (1987-06-01), Muneki et al.
patent: 4677006 (1987-06-01), Topolski

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