Patent · US Active

Roofing compositions comprising linear low density polyethylene

US11286380B2 · kind B2 · utility

0Cited by

0References

11Claims

0Family size

Assignee

Johns Manville · US

Inventors

Lichih R. Peng · Littleton, US
Jordan Kortmeyer · Parker, US
Lance Wang · Parker, US
Jawed Asrar · Englewood, US

Key dates

Filing date	Feb 27, 2020
Grant date	Mar 29, 2022
Priority date	—
Expiry date	Feb 27, 2040

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08L2207/066
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

Provided is a polymer blend composition comprising linear low density polyethylene, a propylene polymer generally having rubber dispersed therein, and a combination of a propylene copolymer and an ethylene copolymer. In one embodiment, there is provided a polymer blend composition comprising 15 to 75 weight percent of a propylene polymer having from 10-60% crystallinity, 30-50 weight percent of a linear low density polyethylene, and a combination of the propylene copolymer and the ethylene copolymer comprising the remainder of the composition.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.