聚烯烃（聚乙烯、聚丙烯等）的FDA标准.docVIP

聚烯烃（聚乙烯、聚丙烯等）的FDA标准[Code?of?Federal?Regulations][Title?21,?Volume?3][Revised?as?of?April?1,?2005]From?the?U.S.?Government?Printing?Office?via?GPO?Access[CITE:?21CFR177.1520][Page?283-298]?????????????????????????TITLE?21--FOOD?AND?DRUGS?CHAPTER?I--FOOD?AND?DRUG?ADMINISTRATION,?DEPARTMENT?OF?HEALTH?AND?HUMAN???????????????????????????SERVICES?(CONTINUED)?PART?177_INDIRECT?FOOD?ADDITIVES:?POLYMERS--Table?of?Contents?Subpart?B_Substances?for?Use?as?Basic?Components?of?Single?and?Repeated?????????????????????????Use?Food?Contact?Surfaces?Sec.?177.1520??Olefin?polymers.????The?olefin?polymers?listed?in?paragraph?(a)?of?this?section?may?be?safely?used?as?articles?or?components?of?articles?intended?for?use?in?contact?with?food,?subject?to?the?provisions?of?this?section.????(a)?For?the?purpose?of?this?section,?olefin?polymers?are?basic?polymers?manufactured?as?described?in?this?paragraph,?so?as?to?meet?the?specifications?prescribed?in?paragraph?(c)?of?this?section,?when?tested?by?the?methods?described?in?paragraph?(d)?of?this?section.????(1)(i)?Polypropylene?consists?of?basic?polymers?manufactured?by?the?catalytic?polymerization?of?propylene.????(ii)?Propylene?homopolymer?consists?of?basic?polymers?manufactured?by?the?catalytic?polymerization?of?propylene?with?a?metallocene?catalyst.????(2)(i)?Polyethylene?consists?of?basic?polymers?manufactured?by?the?catalytic?polymerization?of?ethylene.????(ii)?Fumaric?acid-grafted?polyethylene?(CAS?Reg.?No.?26877-81-6)?consists?of?basic?polymers?manufactured?by?the?catalytic?polymerization?of?ethylene?followed?by?reaction?with?fumaric?acid?in?the?absence?of?free?radical?initiators.?Such?polymers?shall?contain?grafted?fumaric?acid?at?levels?not?to?exceed?2?percent?by?weight?of?the?finished?polymer.????(3)?Olefin?basic?copolymers?consist?of?basic?copolymers?manufactured?by?the?catalytic?copolymerization?of:????(i)?Two?or?more?of?the?1-alkenes?having?2?to?8?carbon?atoms.?Such?olefin?basic?cop