IP Library › Granted Patent US 10,208,193
Granted Patent B2
US 10,208,193 · App. 14/898,682 · Granted Feb 19, 2019

Reinforced polypropylene composition

Inventors: Yi Jin (Missouri City, TX); Kim L. Walton (Freeport, TX); Edmund M. Carnahan (Pearland, TX); Gary R. Marchand (Gonzales, LA); Xuming Chen (Katy, TX); Jeffrey D. Weinhold (Lake Jackson, TX); Jerzy Klosin (Midland, MI); A. Willem Degroot (Sugarland, TX); Philip P. Fontaine (Alvin, TX)
Assignee: Dow Global Technologies LLC
C08L23/12C08K3/34C08L23/0815C08L53/00
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Quick Facts
Patent No.
US 10,208,193
App. No.
14/898,682
Granted
Feb 19, 2019
Kind
B2
Abstract

Embodiments of the invention provide a reinforced polypropylene comprising a multi-modal molecular weight distribution elastomer and a block composite.

Claims (10)

1. A composition comprising:

polypropylene;

an elastomer having a multi-mode molecular weight distribution;

a block composite; and,

optionally, a filler,

wherein the elastomer having a multi-mode molecular weight distribution has a high molecular weight fraction and a low molecular weight fraction,

wherein the low molecular weight fraction has a weight average molecular weight ranging from 5 kg/mol to 50 kg/mol,

wherein the elastomer having a multi-mode molecular weight distribution comprises an I 10 /I 2 of from 18 to 36 and an overall Mw/Mn ratio of from 7.04 to less than 13.81, and wherein the difference of the I 10 /I 2 and the overall M w /M n ratio is from 10.96 to 22.19.

2. The composition of claim 1 wherein the high molecular weight fraction has a weight average molecular weight ranging from 75 kg/mol to 600 kg/mol.

3. The composition of claim 1 wherein the high molecular weight fraction has a comonomer content that is at least 10 wt % greater than that of the low molecular weight fraction.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 24, 2019
From: JIN, YI; WALTON, KIM L.; CARNAHAN, EDMUND M.; MARCHAND, GARY R.; CHEN, XUMING; WEINHOLD, JEFFREY D.; KLOSIN, JERZY; DEGROOT, A. WILLEM; FONTAINE, PHILIP P.
To: DOW GLOBAL TECHNOLOGIES LLC
Reel/Frame 049849/0596 →
Continuity (1)
Related Publication 20160251505A1 · Sep 1, 2016