Title:
GLASS-BASED ARTICLES HAVING CRACK MITIGATING SINGLE- AND MULTI-LAYER FILMS FOR RETAINED ARTICLE STRENGTH AND SCRATCH RESISTANCE
Document Type and Number:
WIPO Patent Application WO/2018/118467
Kind Code:
A3
Abstract:
An article that includes: a glass-based substrate having opposing major surfaces; a crack mitigating stack disposed on one of the major surfaces; and a scratch-resistant film disposed on the crack mitigating stack that has an elastic modulus greater than or equal to the elastic modulus of the substrate. The stack comprises one or more bi-layers defined by: (a) a first layer comprising an organosilicate material, and (b) a second layer comprising an organosilicate material over the first layer, the first layer having a lower elastic modulus than the elastic modulus of the second layer. The film comprises at least one of a metal-containing oxide, a metal-containing oxynitride, a metal-containing nitride, a metal-containing carbide, a silicon-containing polymer, a carbon, a semiconductor, and combinations thereof. In addition, the article is characterized by an average flexural strength that is at least 70% of an average flexural strength of the substrate.
Inventors:
BELLMAN ROBERT (US)
FENG JIANGWEI (US)
HART SHANDON DEE (US)
PRICE JAMES (US)
FENG JIANGWEI (US)
HART SHANDON DEE (US)
PRICE JAMES (US)
Application Number:
PCT/US2017/065507
Publication Date:
July 26, 2018
Filing Date:
December 11, 2017
Export Citation:
Assignee:
CORNING INC (US)
International Classes:
C03C17/42
Domestic Patent References:
| WO2016176383A1 | 2016-11-03 | |||
| WO2016138195A1 | 2016-09-01 |
Attorney, Agent or Firm:
SCHMIDT, Jeffrey, A. (US)
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