Patent · US Active

Method for end-capping a polysiloxane prepolymer

US10870731B2 · kind B2 · utility

0Cited by

1References

23Claims

0Family size

Assignee

BAUSCH & LOMB INCORPORATED · US

Inventors

Ivan M. Nunez · Jacksonville, US
Katie L. Poetz · Scottsdale, US
Andrew J. Hoteling · Ontario, US
Joseph W. Hoff · Fairport, US
Lynn Coullard · Williamson, US
Analuz Mark · Spencerport, US
Keyla M. Cubi · Rochester, US
Joseph A. McGee · Canandaigua, US

Key dates

Filing date	Jan 14, 2019
Grant date	Dec 22, 2020
Priority date	—
Expiry date	Jan 14, 2039

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61F2/16
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

A method is disclosed which involves the steps of (a) reacting a polysiloxane prepolymer having reactive functional end groups with a non-free radical polymerizable reactive end-capping agent; and (b) reacting the reaction product of step (a) with a free radical polymerizable reactive end-capping agent.

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