###### Editorial Note on [Part 177](/current/title-21/part-177?toc=1)

#### Editorial Note:

Nomenclature changes to part 177 appear at [61 FR 14482](https://www.federalregister.gov/citation/61-FR-14482), Apr. 2, 1996; [66 FR 56035](https://www.federalregister.gov/citation/66-FR-56035), Nov. 6, 2001; [66 FR 66742](https://www.federalregister.gov/citation/66-FR-66742), Dec. 27, 2001; [68 FR 15355](https://www.federalregister.gov/citation/68-FR-15355), Mar. 31, 2003; [70 FR 72074](https://www.federalregister.gov/citation/70-FR-72074), Dec. 1, 2005; and [81 FR 49896](https://www.federalregister.gov/citation/81-FR-49896), July 29, 2016.

#### § 177.1395 Laminate structures for use at temperatures between 120 °F and 250 °F.

(a) The laminates identified in this section may be safely used at the specified temperatures. These articles are layered structures that are optionally bonded with adhesives. In these articles, the food-contact layer does not function as a barrier to migration of components from non-food-contact layers. The layers may be laminated, extruded, coextruded, or fused.

(b) Laminate structures may be manufactured from:

(1) Polymers and adjuvants complying with [§ 177.1390 of this chapter](/on/2024-09-17/title-21/section-177.1390).

(2) Any polymeric resin listed in these regulations so long as the use of the resin in the structure complies with the conditions of use (food type and time/temperature) specified in the regulation for that resin.

(3) Optional adjuvant substances used in accordance with [§ 174.5 of this chapter](/on/2024-09-17/title-21/section-174.5).

(4) The following substances in non-food-contact layers only:

| Substances | Limitations |
| --- | --- |
| Ethylene/1,3-phenylene oxyethylene isophthalate/terephthalate copolymer (CAS Reg. No. 87365-98-8) complying with [§ 177.1345](/on/2024-09-17/title-21/section-177.1345) | For use only with polyethylene terephthalate as the food-contact layer, complying with [§ 177.1630](/on/2024-09-17/title-21/section-177.1630) under conditions of use C through G described in table 2 of [§ 176.170(c) of this chapter](/on/2024-09-17/title-21/section-176.170#p-176.170(c)). Laminate structures, when extracted with 8 percent ethanol at 150 °F for 2 hours shall not yield *m*-pheny lenedioxy-O,O′-diethyl isophthalate or cyclic bis(ethylene isophthalate) in excess of 7.8 micrograms/square decimeter (0.5 microgram/square inch) of food-contact surface. |
| Nylon 6/12 resins complying with [§ 177.1500(b)](/on/2024-09-17/title-21/section-177.1500#p-177.1500(b)), item 13.2, of this chapter (CAS Reg. No. 25191-04-2) | For use with nonalcoholic foods at temperatures not to exceed 100 °C (212 °F). Laminate structures with authorized food-contact materials yield no more than 0.15 milligram of *epsilon*-caprolactam and 0.04 milligram of *omega*-laurolactam per square inch when extracted with water at 100 °C (212 °F) for 5 hours. |
| Nylon 6/66 resins complying with [§ 177.1500(b)](/on/2024-09-17/title-21/section-177.1500#p-177.1500(b)), item 4.2 of this chapter (CAS Reg. 24993-04-2) | For use only with: 1. Nonalcoholic foods at temperatures not to exceed 82.2 °C (180 °F). Laminate structures with authorized food-contact materials yield no more than 0.15 milligram of *epsilon*-caprolactam per square inch when extracted with water at 82.2 °C (180 °F) for 5 hours. 2. Nonalcoholic foods at temperatures not to exceed 100 °C (212 °F). Laminate films with authorized food-contact materials yield no more than 0.15 milligram of *epsilon*-caprolactam per square inch when extracted with water at 100 °C (212 °F) for 5 hours. |
| Nylon 6/69 resins complying with [§ 177.1500(b)](/on/2024-09-17/title-21/section-177.1500#p-177.1500(b)), item 14, of this chapter (CAS Reg. No. 51995-62-1) | For use with nonalcoholic foods under conditions of use B, C, D, E, F, G, and H described in table 2 of [§ 176.170 of this chapter](/on/2024-09-17/title-21/section-176.170). Laminate structures with authorized food-contact materials may contain nylon 6/69 resins provided that the nitrogen content of aqueous extracts of a representative laminate (obtained at 100 °C (212 °F) for 8 hours) does not exceed 15 micrograms per square centimeter (100 micrograms per square inch). |

[[52 FR 33575](https://www.federalregister.gov/citation/52-FR-33575), Sept. 4, 1987, as amended at [53 FR 19772](https://www.federalregister.gov/citation/53-FR-19772), May 31, 1988; [57 FR 43399](https://www.federalregister.gov/citation/57-FR-43399), Sept. 21, 1992; [58 FR 32610](https://www.federalregister.gov/citation/58-FR-32610), June 11, 1993; [62 FR 53957](https://www.federalregister.gov/citation/62-FR-53957), Oct. 17, 1997]