Films blown by the inflated bubble method of alloys of vinyliden

Details Films blown by the inflated bubble method of alloys of vinyliden Films blown by the inflated bubble method of alloys of vinyliden

1986-12-15

1988-10-25

Thurlow, Jeffery

Plastic and nonmetallic article shaping or treating: processes

Direct application of fluid pressure differential to...

Production of continuous or running length

264171, 264237, 4253261, B29C 4788

Patent

active

047802650

ABSTRACT:
Blends of a vinylidene chloride polymer, an olefin polymer, and a compatibilizer polymer are successfully fabricated into films using the well-known inflated bubble technique, by using blow-up rates in the range of about 1.5 to 5.0 and a drawn-down ratio upwards of 6, preferably upwards of 8, but not exceeding the critical draw-down ratio of 13. At a draw-down ratio exceeding 13, the physical properties of the polymer blend are seriously diminished.

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patent: 3853661 (1974-12-01), Sudo
patent: 4000234 (1976-12-01), Pilgrim et al.
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patent: 4410482 (1983-10-01), Saubramanian
patent: 4496516 (1985-01-01), Schirmer
patent: 4532100 (1985-07-01), Lancaster et al.
patent: 4547551 (1985-10-01), Bailey et al.
patent: 4664866 (1987-05-01), van der Heijden

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