Radiation-modified poly (tetrafluoroethylene) resin feeds...

Details Radiation-modified poly (tetrafluoroethylene) resin feeds... Radiation-modified poly (tetrafluoroethylene) resin feeds...

2007-05-22

2007-05-22

Berman, Susan (Department: 1711)

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

C526S250000, C522S155000, C522S156000, C264S331140

Reexamination Certificate

active

10855573

ABSTRACT:
Unsintered poly(tetrafluoroethylene) resin feeds are treated with ionizing radiation in an absorbed dose of no more than 1,000 Gy at room temperature in air so that only the melting temperature of the resin feeds is shifted toward the lower end without changing the quantities of heat of fusion and crystallization.

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21 CFR § 179.26 (Apr. 1, 2004 Edition).
W.T. Roberts, MS & Jean Olds Weese, Ph.D.; “Food Irradiation”; http://www.aces.edu/dept/family/foodsafe/irrad.htm, pp. 1-5.

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