---
kind: "section"
citation: "21 C.F.R. § 178.3930"
title: "21"
number: "178.3930"
heading: "Terpene resins."
url: "https://uscodex.org/cfr/21/178.3930"
---

# §178.3930. Terpene resins.


The terpene resins identified in [paragraph (a)](#a) of this section may be safely used as components of polypropylene film intended for use in contact with food, and the terpene resins identified in [paragraph (b)](#b) of this section may be safely used as components of polyolefin film intended for use in contact with food;

- (a) Terpene resins consisting of the hydrogenated polymers of terpene hydrocarbons obtainable from sulfate turpentine and meeting the following specifications: Drop-softening point of 118°-138 °C; iodine value less than 20.
- (b) **Terpene resins consisting of polymers of beta-pinene and meeting the following specifications—** Acid value less than 1; saponification number less than 1; color less than 4 on the Gardner scale as measured in 50 percent mineral spirits solution.

## Notes

### Authority

Authority: 21 U.S.C. 321, 342, 348, 379e.

### Source

Source: 42 FR 14609, Mar. 15, 1977, unless otherwise noted.