Patent · US Active

Honeycomb from paper having flame retardant thermoplastic binder

US7815993B2 · kind B2 · utility

4Cited by

26References

15Claims

0Family size

Assignee

E.I. DU PONT DE NEMOURS AND COMPANY · US

Inventors

Gary Lee Hendren · Richmond, US
Subhotosh Khan · Midlothian, US
Mikhail R. Levit · Glen Allen, US

Key dates

Filing date	Dec 15, 2006
Grant date	Oct 19, 2010
Priority date	—
Expiry date	Jan 21, 2027

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/24149
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

This invention relates to an improved flame retardant honeycomb comprising high modulus fiber and a flame retardant thermoplastic binder having a melt point of from 120° C. to 350° C. and a limiting oxygen index of 26 or greater, methods for making the honeycomb, and articles comprising the honeycomb. In a preferred embodiment the paper in the honeycomb has a flame classification of UL-94 V-0.

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