Soft polymer compositions having improved high temperature...

Details Soft polymer compositions having improved high temperature... Soft polymer compositions having improved high temperature...

2006-08-18

2010-02-02

Harlan, Robert D. (Department: 1796)

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

Synthetic resins

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

C525S093000, C525S192000, C525S240000, C525S232000, C525S227000

Reexamination Certificate

active

07655731

ABSTRACT:
Disclosed are soft polymer compositions comprising an ethylene/alkyl (meth)acrylate copolymer and a crystalline polyolefin, such as polypropylene homopolymers or polypropylene copolymers, wherein the ethylene/alkyl (meth)acrylate copolymer has a higher melt viscosity than the polyolefin. Also disclosed are such compositions modified by materials that improve the scratch-and-mar properties of the blends, the preparation and use of these compositions in such processes as extrusion and injection molding, and articles made from these compositions.

REFERENCES:
patent: 4234656 (1980-11-01), Amembal
patent: 4500681 (1985-02-01), Shulman
patent: 4710544 (1987-12-01), Wolfe, Jr.
patent: 5532066 (1996-07-01), Latiolais et al.
patent: 0964890 (2004-10-01), None
patent: 63041550 (1988-02-01), None
patent: 6329744 (1994-11-01), None
patent: WO 01/12390 (2001-02-01), None

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