Method for producing a highly stretched multi-layered film

Details Method for producing a highly stretched multi-layered film Method for producing a highly stretched multi-layered film

1994-01-19

1995-08-22

Thurlow, Jeffery R.

Plastic and nonmetallic article shaping or treating: processes

Carbonizing to form article

Agglomeration or accretion

264514, 264173, 264230, 2642902, 264342R, B29C 7104

Patent

active

054437652

ABSTRACT:
A method for producing a high strength multi-layered film excellent in heat resistance, shrinkability and stretchability and usable for wrapping of various articles which comprises at least five layers comprising a surface layer (S layer) mainly composed of at least one polymer selected from (A), (B), etc. and as inner layers at least one base layer (SBC layer) containing mainly a mixed composition comprising a combination such as (A)+(B)+(C), at least one core layer (H layer) containing mainly a polymer selected from (C), and at least one auxiliary layer (R layer) containing mainly at least one polymer selected from (A) and (B), with a proviso that when the R layer is placed-adjacent to the S layer, the R layer comprises the resin different from that of the S layer, said (A) being a low-density polyethylene or a copolymer of ethylene with a specific monomer, said (B) being a soft thermoplastic elastomer having a Vicat softening point of 80.degree. C. or lower, and said (C) being a specific polymer such as a crystalline polypropylene or the like or a mixed polymer thereof.

REFERENCES:
patent: 4156709 (1979-05-01), Kondo et al.
patent: 4352850 (1982-10-01), Yamamoto et al.
patent: 4501634 (1985-02-01), Yoshimura et al.
patent: 4542886 (1985-09-01), Yoshimura et al.
patent: 4608302 (1986-08-01), Schirmer
patent: 4619859 (1986-10-01), Yoshimura et al.
patent: 4720420 (1988-01-01), Crass et al.
patent: 4769261 (1988-09-01), Hazelton et al.
patent: 4863769 (1989-09-01), Lustig et al.
patent: 4985197 (1991-01-01), Isozaki et al.

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