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U.S. Department of Health and Human Services

Inventory of Effective Food Contact Substance (FCS) Notifications

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FCN No. 68

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Food Contact Substance:  Butene-1, polymer with propylene (CAS Reg. No. 29160-13-2), containing more than 15 but not greater than 35 weight percent of polymer units derived from butene-1.
Notifier:  Mitsui Chemicals Inc.
Manufacturer:  Mitsui Chemicals Inc.
Intended Use:  In blends with polypropylene-based olefin polymers complying with 21 CFR 177.1520(c), items 1.1, 3.1 and 3.2, at levels not to exceed 30 weight percent of the total blend.
Effective Date:  07/27/2000
Limitations/Specifications:  The FCS shall comply with the specifications of 21 CFR 177.1520(c), item 3.2b, except the thickness limitation shall not apply to the polymer blend. Additionally, optional adjuvant substances listed in 21 CFR 177.1520(b) may be used in the manufacture of the FCS in accordance with the limitations/specifications as specified for the subject adjuvant.
Environmental Impact Decisions:  Environmental Decisions Site