The nylon resins listed in paragraph (a) of this section may be safely used to produce articles intended for use in processing, handling, and packaging food, subject to the provisions of this section:
Nylon resins | Specific gravity | Melting point (degrees Fahrenheit) | Solubility in boiling 4.2N HC1 | Viscosity No. (mL/g) | Maximum extractable fraction in selected solvents (expressed in percent by weight of resin) | |||
Water | 95 percent ethyl alcohol | Ethyl acetate | Benzene | |||||
1. Nylon 66 resins | 1.14±.015 | 475-495 | Dissolves in 1 h | 1.5 | 1.5 | 0.2 | 0.2 | |
2. Nylon 610 resins | 1.09±.015 | 405-425 | Insoluble after 1 h | 1.0 | 2.0 | 1.0 | 1.0 | |
3.1 Nylon 66/610 resins | 1.10±.015 | 375-395 | Dissolves in 1 h | 1.5 | 2.0 | 1.0 | 1.0 | |
4.1 Nylon 6/66 resins, epsilon-caprolactam monomer content not to exceed 0.7 percent by weight | 1.13±.015 | 440-460 | ......do | 2.0 | 2.0 | 1.5 | 1.5 | |
4.2 Nylon 6/66 resins with combined caprolactam content greater than 60 percent and residual epsilon-caprolactam monomer content not to exceed 0.4 percent by weight. For use only as specified in § 177.1395 of this chapter (CAS Reg. No. 24993-04-2) | 1.14±.015 | 380-425 | ......do | 0.8 | 1.0 | 0.5 | 0.5 | |
5.1 Nylon 11 resins for use in articles intended for 1-time use or repeated use in contact with food | 1.04±.015 | 355-375 | Insoluble after 1 h | .30 | .35 | .25 | .3 | |
5.2 Nylon 11 resins for use only: | 1.04±.015 | 355-375 | ......do | .35 | 1.60 | .35 | .40 | |
a. In articles intended for repeated use in contact with food | ||||||||
b. In side-seam cements for articles intended for 1-time use in contact with food and which are in compliance with § 175.300 of this chapter | ||||||||
6.1 Nylon 6 resins | 1.15±.015 | 392-446 | Dissolves in 1 h | 1.0 | 2.0 | 1.0 | 1.0 | |
6.2 Nylon 6 resins for use only in food-contact films having an average thickness not to exceed 0.001 in | 1.15±.015 | 392-446 | ......do | 1.5 | 2.0 | 1.0 | 1.0 | |
7. Nylon 66T resins for use only in food-contact films having an average thickness not to exceed 0.001 in | 1.16±.015 | 482-518 | Insoluble after 1 h | 1.0 | 1.0 | .25 | .25 | |
8. Nylon 612 resins for use only in articles intended for repeated use in contact with food at temperatures not to exceed 212 °F | 1.06±.015 | 406-420 | ......do | .50 | 1.50 | .50 | .50 | |
9. Nylon 12 resins for use only: | 1.01±.015 | 335-355 | ......do | 1.0 | 2.0 | 1.50 | 1.50 | |
a. In food-contact films having an average thickness not to exceed 0.0016 inch intended for use in contact with nonalcoholic food under the conditions of use A (sterilization not to exceed 30 minutes at a temperature not to exceed 250 °F), and B through H of table 2 of § 176.170(c) of this chapter, except as provided in § 177.1390(d) | ||||||||
b. In coatings intended for repeated use in contact with all food types described in table 1 of § 176.170(c) of this chapter, except those containing more than 8 percent alcohol, under conditions of use B through H described in table 2 of § 176.170(c) of this chapter. | ||||||||
10.1 Nylon MXD-6 and impact modified Nylon MXD-6 film having an average thickness not to exceed 40 microns (0.0016 inch) for use in processing, handling, and packaging of food of types V and IX listed in table 1 of § 176.170(c) of this chapter under conditions of use C, D, E, F, G, and H in table 2 of § 176.170(C) of this chapter | 1.21±0.02 | 437-491 | Dissolves in 1h | 2.0 | 2.5 | 1.0 | 1.0 | |
10.2 Impact modified Nylon MXD-6 resins for use as polymer use as polymer modifiers in Nylon 6 resin films complying with paragraph (a)(6) of this section, at levels not to exceed 13 percent by weight of films whose average thickness will not exceed 15 microns (0.6 mils). The finished film is used for packaging, transporting, or holding food, excluding beverages containing more than 8 percent alcohol (by volume) at temperatures not to exceed 49 °C (120 °F) (conditions of use E, F, and G in table 2 of § 176.170(c) of this chapter) | 1.21±0.02 | 437-491 | do | 2.0 | 2.5 | 1.0 | 1.0 | |
10.3 Nylon MXD-6 resins for use only as nonfood-contact layers of: (1) Multilayer films and (2) rigid plastic containers composed of polypropylene food-contact and exterior layers, as defined in § 177.1520(c) , item 1.1(a) and 1.1(b), of this chapter. The finished food-contact laminate, in the form in which it contacts food, when extracted with the food simulating solvent or solvents characterizing the conditions of the intended use as determined from Table 2 of § 176.170(c) of this chapter, shall yield not more than 0.5 micrograms of m-xylylenediamine-adipic acid cyclic monomer per square inch of food-contact surface, when the food simulating solvent is analyzed by any appropriate, properly validated method | 1.22±0.02 | 455-470 | Dissolves in 1 h | 1.0 | 1.5 | 0.2 | 0.2 | |
11. Nylon 12T resins for use in contact with all types of food except those containing more than 8 percent alcohol | 1.06±0.015 | N/A | Insoluble after 1 hour | 0.1 | 0.5 | 0.5 | ||
12. Nylon 6I/6T resins for use in contact with all types of food except alcoholic beverages containing more than 8 percent alcohol | 1.207±0.1 | N/A | Insoluble after 1 hour | 0.2 | 1.0 | 0.1 | 0.1 | |
13.1 Nylon 6/12 resins for use only in food-contact films having an average thickness not to exceed 51 microns (0.002 inch). The finished film is intended to contact all foods except those containing more than 8 percent ethanol under conditions of use B, C, D, E, F, G, and H listed in table 2 of § 176.170(c) of this chapter | 1.06±0.015 | 260-285 | Dissolves in 1 hour | Greater than 140 | 2.0 | 1.5 | 1.5 | |
13.2 Nylon 6/12 resins with residual epsilon-caprolactam not to exceed 0.5 percent by weight and residual omega-laurolactam not to exceed 0.1 percent by weight. For use only as specified in § 177.1395 of this chapter | 1.10±0.15 | 380-400 | Dissolves in 1 h | Greater than 160 | 0.8 | 1.0 | 0.5 | 0.5 |
13.3 Nylon 6/12 resins with residual epsilon-caprolactam not to exceed 0.8 percent by weight and residual omega-laurolactam not to exceed 0.1 percent by weight. For use only as specified in § 177.1390 of this chapter | 1.13 ±0.15 | 400-420 | Dissolves in 1 h | 1.0 | 1.5 | 0.5 | 0.5 | |
14. Nylon 6/69 resins for use only as specified in 21 CFR 177.1395 of this chapter | 1.09±0.02 | 270-277 | [GREATER THAN]140 using the method described in § 177.1500(c)(5)(ii) of this chapter | 3.0 | ||||
15. Nylon 46 resins for use only in food-contact membrane filters intended for repeated use. The finished membrane filter is intended to contact beverages containing no more than 13 percent alcohol, under conditions of use E, F, and G listed in table 2 of § 176.170(c) of this chapter | 1.18±0.015 | 551-592 | Dissolves in 1 h | 0.3 | 0.2 | 0.2 | 0.3 | |
16. Nylon resins PA 6-3-T for repeated-use (excluding bottles) in contact with food of type VIA and VIB described in table 1 of § 176.170(c) of this chapter under conditions of use D through H described in table 2 of § 176.170(c) of this chapter with a hot-fill temperature limitation of 40 °C | 1.12±0.03 | NA | Insoluble after 1 h | [GREATER THAN]110 | 0.007 | 0.64 | 0.003 | 0 |
21 C.F.R. §177.1500
For FEDERAL REGISTER citations affecting §177.1500, see the List of CFR Sections Affected, which appears in the Finding Aids section of the printed volume and at www.govinfo.gov.