Maleated polypropylenes and processes for the preparation...

Details Maleated polypropylenes and processes for the preparation... Maleated polypropylenes and processes for the preparation...

2007-08-14

2007-08-14

Seidleck, James J. (Department: 1711)

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

Synthetic resins

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

C525S069000, C525S184000, C525S191000, C525S193000, C525S285000, C525S322000, C525S333700

Reexamination Certificate

active

10140429

ABSTRACT:
Disclosed are methods for advantageously producing maleated polypropylenes having a relatively high percentage of bound maleic anhydride, based on the total amount of maleic anhydride moieties present in the grafting reaction product, and the maleated polypropylenes produced therefrom. The methods produce maleated polypropylenes wherein at least about 60% of the maleic anhydride moieties in the grafting reaction product are bound to the polypropylene.

REFERENCES:
patent: 5290954 (1994-03-01), Roberts et al.
patent: 5360862 (1994-11-01), Roberts et al.
patent: 5461113 (1995-10-01), Marczinke et al.
patent: 6046279 (2000-04-01), Roberts et al.
patent: 6362280 (2002-03-01), Lences et al.
patent: WO96/06120 (1996-02-01), None

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