Packaging materials

Details Packaging materials Packaging materials

1991-04-23

1992-01-28

Seccuro, Carman J.

Stock material or miscellaneous articles

Composite

Of addition polymer from unsaturated monomers

525240, 4283084, B32B 2732, B32B 2708, C08L 2316, C08L 2320

Patent

active

050843605

ABSTRACT:
A heat sealable polymeric film, heat sealing being provided by a blend of (a) from 25 to 75 percent of propylene/ethylene copolymer containing from 2 to 8 percent by weight of units derived from ethylene, (b) from 1 to 60 percent of but-1-ene/ethylene copolymer containing up to 1 percent by weight of units derived from ethylene, and (c) from 1 to 60 percent of but-1-ene/ethylene copolymer containing from 3 to 10 percent by weight of units derived from ethylene, the percentages of the various copolymers being based on the total weight of the blend. Films of the invention have low heat seal threshold temperatures combined with broad ranges of continuous hot tack.

REFERENCES:
patent: 3849520 (1974-11-01), Bullard et al.
patent: 4230767 (1980-10-01), Isaka et al.
patent: 4291092 (1981-09-01), Weiner
patent: 4391862 (1983-07-01), Bornstein et al.
patent: 4528220 (1985-07-01), Hwo
patent: 4665130 (1987-05-01), Hwo

Affiliated with

Also associated with

Rating

Packaging materials does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1860489