Laminate film structures from chlorinated polyethylenes

Details Laminate film structures from chlorinated polyethylenes Laminate film structures from chlorinated polyethylenes

B - Operations, Transporting

32

B

154/140

B32B 27/06 (2006.01) B32B 27/08 (2006.01) B32B 27/32 (2006.01) E02B 3/12 (2006.01) E02B 9/02 (2006.01)

Patent

CA 1114730

Abstract This invention resides in easily processable, dimensionally stable laminate film structures which are particularly adapted for use in lining ponds, pits, dams and canals and other systems employed for water handling. More particularly, it is directed to laminate film struc- tures comprising, in a generally planar coextensive rela- tionship, (A) a first outer layer of substantially linear polyethylene containing from 25 to 50 weight percent of chemically combined chlorine, (B) an internal layer of substantially linear polyethylene containing from 5 to 15 percent by weight of chemically combined chlorine, and (C) a second outer layer of the nature of the first outer layer which second outer layer is disposed adjacent the internal layer and remote from the first outer layer.

307914

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