Patent · US Active

Insulating glass unit with crack-resistant low-emissivity suspended film

US8530011B2 · kind B2 · utility

3Cited by

27References

14Claims

0Family size

Assignee

Southwall Technologies Inc. · US

Inventors

Ronny Kleinhempel · Gelenau, DE
Julius G. Kozak · Antioch, US
Roland Thielsch · Dresden, DE
Richard T. Wipfler · Menlo Park, US
Christian H. Stoessel · Santa Rosa, US
Lee Campbell Boman · Belmont, US

Key dates

Filing date	Dec 13, 2010
Grant date	Sep 10, 2013
Priority date	—
Expiry date	Oct 27, 2031

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/265
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

A low-e insulating glass unit has a suspended, coated IR reflecting polymer sheet under tension, e.g. from heat shrinkage. The polymer sheet is coated with a multilayer stack of dielectric and metallic layers, including at least one silver layer deposited upon a zinc oxide seed layer that is at most 15 nm thickness. The use of zinc oxide ensures good seeding for high quality silver layer growth, thereby providing low emissivity. The thinness of the zinc oxide ensures that it resists cracking when the polymer sheet is tensioned.

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