NZ710149A - Acoustic building material employing chitosan - Google Patents

Acoustic building material employing chitosan

Info

Publication number
NZ710149A
NZ710149A NZ710149A NZ71014911A NZ710149A NZ 710149 A NZ710149 A NZ 710149A NZ 710149 A NZ710149 A NZ 710149A NZ 71014911 A NZ71014911 A NZ 71014911A NZ 710149 A NZ710149 A NZ 710149A
Authority
NZ
New Zealand
Prior art keywords
chitosan
slurry
ceiling tile
building material
fibre
Prior art date
Application number
NZ710149A
Inventor
Enrique L Albarran
Original Assignee
Usg Interiors Llc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US13/294,200 external-priority patent/US8961675B2/en
Application filed by Usg Interiors Llc filed Critical Usg Interiors Llc
Publication of NZ710149A publication Critical patent/NZ710149A/en

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/91—Use of waste materials as fillers for mortars or concrete

Landscapes

  • Building Environments (AREA)

Abstract

A ceiling tile, an acoustic building material and a method for manufacture that incorporates chitosan in an amount sufficient to provide improved strength and to enhance the dewatering of the slurry used to form the tile is disclosed. The cast ceiling tile is formed from an aqueous slurry of ingredients including fibre, filler, binder and chitosan homogenously dispersed throughout the aqueous slurry. The chitosan is dissolved in an acidic aqueous solution and homogenously blended into the slurry. The cast ceiling tile formed is stronger and harder as compared with an identically formed ceiling tile of the same slurry ingredients except for the chitosan. The fibre might be mineral wool, glass fibre or cellulose. The filler may be perlite, calcium carbonate, clay or stucco. The binder may be selected from the group consisting of starch and latex.
NZ710149A 2010-12-28 2011-12-09 Acoustic building material employing chitosan NZ710149A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201061427643P 2010-12-28 2010-12-28
US13/294,200 US8961675B2 (en) 2010-12-28 2011-11-11 Acoustic building material employing chitosan
NZ61307211 2011-12-09

Publications (1)

Publication Number Publication Date
NZ710149A true NZ710149A (en) 2016-06-24

Family

ID=56132546

Family Applications (1)

Application Number Title Priority Date Filing Date
NZ710149A NZ710149A (en) 2010-12-28 2011-12-09 Acoustic building material employing chitosan

Country Status (1)

Country Link
NZ (1) NZ710149A (en)

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Legal Events

Date Code Title Description
PSEA Patent sealed
RENW Renewal (renewal fees accepted)

Free format text: PATENT RENEWED FOR 3 YEARS UNTIL 09 DEC 2018 BY JAMES + WELLS

Effective date: 20161107

RENW Renewal (renewal fees accepted)

Free format text: PATENT RENEWED FOR 1 YEAR UNTIL 09 DEC 2019 BY COMPUTER PACKAGES INC

Effective date: 20181120

RENW Renewal (renewal fees accepted)

Free format text: PATENT RENEWED FOR 1 YEAR UNTIL 09 DEC 2020 BY COMPUTER PACKAGES INC

Effective date: 20191119

LAPS Patent lapsed