Multi-phase polypropylene compositions

Details Multi-phase polypropylene compositions Multi-phase polypropylene compositions

2006-04-18

2006-04-18

Mullis, Jeffrey (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...

C525S066000, C525S067000, C525S069000

Reexamination Certificate

active

07030188

ABSTRACT:
Improved multi-phase polypropylene composites are provided. The compositions are comprised of a polypropylene base resin, a non-compatible dispersed phase which can be a polymer or filler material and a propylene-ethylene copolymer grafted with a carboxylic acid or carboxylic acid derivative.

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Mieck, K.-P., et al.:Polymer Composites, vol. 17: 6 (Dec. 1996), pp. 873-878: “Needle-Punched Hybrid Nonwovens of Flax and PP Fibers—Textile Semiproducts for Manufacturing of Fiber Composites.”.
Note: U.S. appl. No. 10/222,568 is now U.S. patent 6,716,928 (provided above).

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