发布单位：FDA
发布文号：54 FR 24898
发布日期：1989-06-11
生效日期：暂无
有效性状态： 
废止日期：暂无
备注：氯磺化的乙烯聚合物由聚乙烯的四氯化碳溶液与氯和磺酰氯进行氯磺化作用而成。氯磺化的乙烯聚合物的氯含量不超过25%（质量分数）。硫含量不超过1.15%（质量分数）。相对分子质量在95000~125000范围内。本添加剂可用作制品或制品组分，用做储存饮用水的容器的衬料和盖。177.2600中允许使用的物质，可用于制备氯磺化的乙烯聚合物，但应符合其中的各种限制条件。成品氯磺化的乙烯共聚物，应符合177.2600（e）和（g）的规定。
§177.2210 Ethylene polymer, chloro-sulfonated.
Ethylene polymer, chlorosulfonated as identified in this section may be safely used as an article or component of articles intended for use in contact with food, subject to the provisions of this section.
(a) Ethylene polymer, chloro-sulfonated is produced by chloro-sulfonation of a carbon tetrachloride solution of polyethylene with chlorine and sulfuryl chloride.
(b) Ethylene polymer, chloro-sulfonated shall meet the following specifications:
(1) Chlorine not to exceed 25 percent by weight.
(2) Sulfur not to exceed 1.15 percent by weight.
(3) Molecular weight is in the range of 95,000 to 125,000.
Code of Federal Regulations
Methods for the specifications in this paragraph (b), titled “Chlorine and Bromine—Coulometric Titration Method by Aminco Chloridometer,” “Hypolon ? Synthetic Rubber—Determination of Sulfur by Parr Bomb,” and ASTM method D2857-70 (Reapproved 1977), “Standard Test Method for Dilute Solution Viscosity of Polymers,” are incorporated by reference. Copies of the ASTM method may be obtained from the American Society for Testing Materials, 100 Barr Harbor Dr., West Conshohocken, Philadelphia, PA 19428-2959. Copies of the other two methods are available from the Center for Food Safety and Applied Nutrition (HFS-200), Food and Drug Administration, 5100 Paint Branch Pkwy., College Park, MD 20740. Copies of all three methods may be examined at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, call 202-741-6030, or go to: http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.html.
(c) The additive is used as the article, or a component of articles, intended for use as liners and covers for reservoirs intended for the storage of water for drinking purposes.
(d) Substances permitted by § 177.2600 may be employed in the preparation of ethylene polymers, chlorosulfonated, subject to any limitations prescribed therein.
(e) The finished ethylene copolymers, chlorosulfonated shall conform to § 177.2600(e) and (g).
Code of Federal Regulations
[42 FR 14572, Mar. 15, 1977, as amended at 49 FR 10111, Mar. 19, 1984; 54 FR 24898, June 12, 1989]
Ethylene polymer, chlorosulfonated as identified in this section may be safely used as an article or component of articles intended for use in contact with food, subject to the provisions of this section.
(a) Ethylene polymer, chloro-sulfonated is produced by chloro-sulfonation of a carbon tetrachloride solution of polyethylene with chlorine and sulfuryl chloride.
(b) Ethylene polymer, chloro-sulfonated shall meet the following specifications:
(1) Chlorine not to exceed 25 percent by weight.
(2) Sulfur not to exceed 1.15 percent by weight.
(3) Molecular weight is in the range of 95,000 to 125,000.
Code of Federal Regulations
Methods for the specifications in this paragraph (b), titled “Chlorine and Bromine—Coulometric Titration Method by Aminco Chloridometer,” “Hypolon ? Synthetic Rubber—Determination of Sulfur by Parr Bomb,” and ASTM method D2857-70 (Reapproved 1977), “Standard Test Method for Dilute Solution Viscosity of Polymers,” are incorporated by reference. Copies of the ASTM method may be obtained from the American Society for Testing Materials, 100 Barr Harbor Dr., West Conshohocken, Philadelphia, PA 19428-2959. Copies of the other two methods are available from the Center for Food Safety and Applied Nutrition (HFS-200), Food and Drug Administration, 5100 Paint Branch Pkwy., College Park, MD 20740. Copies of all three methods may be examined at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, call 202-741-6030, or go to: http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.html.
(c) The additive is used as the article, or a component of articles, intended for use as liners and covers for reservoirs intended for the storage of water for drinking purposes.
(d) Substances permitted by § 177.2600 may be employed in the preparation of ethylene polymers, chlorosulfonated, subject to any limitations prescribed therein.
(e) The finished ethylene copolymers, chlorosulfonated shall conform to § 177.2600(e) and (g).
Code of Federal Regulations
[42 FR 14572, Mar. 15, 1977, as amended at 49 FR 10111, Mar. 19, 1984; 54 FR 24898, June 12, 1989]
