Patent · US Active

Hydrolytically degradable composition

US10752824B2 · kind B2 · utility

0Cited by

2References

18Claims

0Family size

Assignee

CDI Energy Products, Inc. · US

Inventors

Xuan Fu · Purvis, US
Frederick B. Pippert · Sugar Land, US

Key dates

Filing date	Nov 6, 2018
Grant date	Aug 25, 2020
Priority date	—
Expiry date	Nov 6, 2038

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC09K2208/26
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

Disclosed are time controlled, hydrolytically degradable compositions that include a polyurethane; precipitated silica, carbon black, or a combination thereof; an organic acid adapted to facilitate degradation when the composition is contacted with water; a stabilizer; a first crosslinking agent; and an optional co-agent. The composition is adapted to degrade over a predetermined time period upon contact with water at a pH ranging from 5 to 8 and at a temperature ranging from 100° F. to 250° F.

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