Ethylenic composite film structure

Details Ethylenic composite film structure Ethylenic composite film structure

1981-09-30

1983-04-19

McCamish, Marion

Stock material or miscellaneous articles

Structurally defined web or sheet

Including components having same physical characteristic in...

428347, 428354, 428516, 428349, 428215, B32B 2700

Patent

active

043805671

ABSTRACT:
A composite film structure composed of a layer (A) of high density polyethylene having an intrinsic viscosity [.eta.] as measured in decalin at 135.degree. C. of 1.3-2.9 dl/g, a melt index (MI.sub.A) of 0.3-7.0 g/10 min. and a density of 0.950-0.970 g/cm.sup.3, in which up to 2 mole % of an alpha-olefin may be contained; and layers (B) of an ethylene/C.sub.5 -C.sub.10 alpha-olefin random copolymer having an intrinsic viscosity [.eta.] as measured in decalin at 135.degree. C. of 1.0-2.4 dl/g, a melt index (MI.sub.B) of 0.5-20 g/10 min., a density of 0.910-0.940 g/cm.sup.3, and a melting point of 115.degree.-130.degree. C., with the proviso that the MI.sub.A /MI.sub.B ratio is 0.15-4.0, said layers (B) being in direct contact with the two sides of said layer (A) and laminated thereto.

REFERENCES:
patent: 4151318 (1979-04-01), Marshall
patent: 4205021 (1980-05-01), Morita
patent: 4252851 (1981-02-01), Lansbury
patent: 4303710 (1981-12-01), Ballard

Affiliated with

Also associated with

Rating

Ethylenic composite film structure does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Ethylenic composite film structure, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ethylenic composite film structure will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-837171