Patent · US Active

Lightweight particles and compositions containing them

US11292937B2 · kind B2 · utility

0Cited by

30References

25Claims

0Family size

Assignee

PPG Industries Ohio, Inc. · US

Inventors

Lawrence G. Anderson · Washington, US
Chester J. Szymanski · Washington, US

Key dates

Filing date	Jul 20, 2020
Grant date	Apr 5, 2022
Priority date	—
Expiry date	Aug 11, 2040

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/2998
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

Disclosed are particles that have an exterior surface coated with a thin polymeric coating, such as a coating that includes a sulfur-containing polymer. Also disclosed are compositions, such as fuel-resistant sealant and coating compositions, which include such particles. Aerospace vehicles having an aperture at least partially sealed with a sealant deposited from such a sealant composition are also disclosed.

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