Polyethylene blends with improved Vicat softening point

Details Polyethylene blends with improved Vicat softening point Polyethylene blends with improved Vicat softening point

2004-11-23

2008-10-21

Nutter, Nathan M (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...

Reexamination Certificate

active

07439306

ABSTRACT:
A method of selecting polyethylene components for a polyethylene composition having an improved Vicat softening point comprising blending at least a first polyethylene having a first density and a second polyethylene having a second density to form the polyethylene composition, wherein the first density is greater than the second density, and determining a first Vicat softening point (V1) of the composition measured, and calculating a second Vicat softening point (V2) of the composition using the formulain-line-formulae description="In-line Formulae" end="lead"?V2=[Σn1{W1(Vicat softening point of the first polyethylene)+W2(Vicat softening point of the second polyethylene) . . . Wn(Vicat softening point of the nth polyethylene)}],in-line-formulae description="In-line Formulae" end="tail"?wherein W1is the weight fraction of the first polyethylene, W2is the weight fraction of the second polyethylene and Wnis the weight fraction of the nth polyethylene, n ranges from 2 to 10 and W1+W2. . . +Wn=1.0; comparing V1and V2; selecting the polyethylene components such that V1is less than V2for the polyethylene composition.

REFERENCES:
patent: 5032463 (1991-07-01), Smith
patent: 5723507 (1998-03-01), Markovich et al.
patent: 6306969 (2001-10-01), Patel et al.
patent: 6787220 (2004-09-01), Wallace et al.
patent: 7056593 (2006-06-01), Kennedy et al.
patent: 2001/0002755 (2001-06-01), Rowley
patent: 330 168 (1996-05-01), None
patent: 737 715 (1996-10-01), None
patent: WO 98/24834 (1998-06-01), None
U.S. Appl. No. 10/803,318, filed Mar. 18, 2004, Ravel et al.

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