Barrier property enhancement of films and molded articles

Details Barrier property enhancement of films and molded articles Barrier property enhancement of films and molded articles

1994-11-03

1996-04-16

Sweet, Mark D.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

524323, 524380, 524393, 524462, 524463, 524583, C08K 536

Patent

active

055083307

ABSTRACT:
An improvement in barrier properties of films and molded articles containing an organic polymer is achieved by incorporation therein of fluorochemicals, fluoropolymers or mixtures thereof, wherein said fluorochemicals or fluoropolymers contain greater than 40% fluorine by weight and exhibit less than 20% weight loss at 165.degree. C., as measured by thermogravimetric analysis at 20.degree. C. per minute in air. The films and molded articles in accordance with the present invention exhibit improved vapor and chemical barrier properties.

REFERENCES:
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patent: 3899563 (1975-08-01), Oxenrider et al.
patent: 4515836 (1985-05-01), Cobbs, Jr. et al.
patent: 4764405 (1988-08-01), Bauman et al.
patent: 4837074 (1989-06-01), Rosinski et al.
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patent: 5143963 (1992-09-01), Sterling et al.
patent: 5188873 (1993-02-01), Delannoy
patent: 5399400 (1995-03-01), Nile et al.
D. Thompson, et al. "New Fluorochemicals for Protective Clothing"; pp. 345-364 (1990).

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