Adhesive compositions based on blends of grafted metallocene cat

Details Adhesive compositions based on blends of grafted metallocene cat Adhesive compositions based on blends of grafted metallocene cat

1999-01-21

2000-12-26

Nutter, Nathan M.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525222, 525227, 525240, 428516, 428523, C08L 3302, C08L 3304, C08L 3306, C08L 3502, C08L 4300

Patent

active

061661422

ABSTRACT:
Polyethylene-based adhesive compositions which contain as little as 5 weight percent, and up to 35 weight percent of an acid-grafted metallocene polyethylene have superior peel strength to comparable compositions containing an acid grafted non-metallocene and EVA or EMA polyethylene. Compositions where the acid-grafted metallocene polyethylene component is based on a metallocene polyethylene having a melt-flow ratio of less than 6.53 and an Mw/Mn of greater than the melt flow ratio less 4.63 are as good adhesive compositions as those based on metallocene resins falling outside these parameters.

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International Search Report dated Apr. 26, 1999.

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