Plastic and nonmetallic article shaping or treating: processes – Forming continuous or indefinite length work – Layered – stratified traversely of length – or multiphase...
Patent
1993-07-09
1994-10-18
Vargot, Mathieu
Plastic and nonmetallic article shaping or treating: processes
Forming continuous or indefinite length work
Layered, stratified traversely of length, or multiphase...
264211, 26421123, 4251335, B29C 4706
Patent
active
053565835
ABSTRACT:
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.
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The Dow Chemical Company
Vargot Mathieu
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