Method of making a modified burn characteristic saranex film

A coextruded film with both gas barrier and fire retardant properties as well as good physical properties is made up by melt coextrusion to form a four or five layer film product useful in making laminates for protective clothing or tarps. The five layer film has a Saran resin barrier core layer and...

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Bibliographic Details
Main Author TUNG; HARVEY C
Format Patent
LanguageEnglish
Published 18.10.1994
Edition5
Subjects
ACCESSORIES
GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC
GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS
HUMAN NECESSITIES
LAYERED PRODUCTS
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
OUTERWEAR
PERFORMING OPERATIONS
PROTECTIVE GARMENTS
TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
TECHNICAL SUBJECTS COVERED BY FORMER USPC
TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ARTCOLLECTIONS [XRACs] AND DIGESTS
TRANSPORTING
WEARING APPAREL
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Summary:A coextruded film with both gas barrier and fire retardant properties as well as good physical properties is made up by melt coextrusion to form a four or five layer film product useful in making laminates for protective clothing or tarps. The five layer film has a Saran resin barrier core layer and LDPE skin layers on each face with intervening EVA glue layers. The four layer film has a Saran resin barrier core layer and a CPE skin layer on one face and an EVA skin layer on the other with an EVA glue layer between the barrier core layer and the CPE skin layer. Each skin layer and each glue layer contains about 8 to about 30 percent by weight of a polyhalogenated organic/antimony oxide fire retardant and a small amount of a slip agent.
Bibliography:Application Number: US19930089009