噴霧塗布用の乾式目地材を用いた壁設置法

Title:

噴霧塗布用の乾式目地材を用いた壁設置法

Document Type and Number:

Japanese Patent JP6714617

Kind Code:

B2

Abstract:

Provided are compositions and methods for expeditious wall installation by spray-applying a joint compound comprising a polymeric binder and hollow spheres. The wet drying-type joint compound for spray application is substantially free of setting minerals, bulk filler, clays, starch, mica, Ca(Mg)C03, expanded perlite, gypsum, talc, diatomaceous earth. It has a shrinkage < 15 vol% (ASTM C474-05) and a viscosity adjusted to 15,600 - 23,000 cP (ASTM C474-05).The joint compound comprises 3 - 90 wt% of a latex emulsion binder being selected from acrylic acid polymers, acrylic acid copolymers, alkyds, polyurethanes, polyesters, epoxies; up to 5 wt% of a nonionic surfactant;up to 3 wt % of a humectant; and 5 - 25 wt% of a plurality of hollow spheres. These spheres are composed of self-contained air bound by a solid barrier, have an average isostatic crush strength of > 250 psi (ASTM D3102-78) and a density of 0.04 - 1.1 g/cm3. The hollow spheres are selected from the group consisting of lime boro-silicate, polystyrene, ceramic, recycled-glass, expanded glass, and lightweight polyolefin beads, thermoplastic, thermoset, and any combination thereof. This joint compounnd is used in a wall installation method comprising joining two gypsum boards together such that the edges create a seam and spraying the seam with the drying type joint compound until the seam is filled.

Inventors:

Pamela El Hargrove
Kevin W Moyer Jr.
Rafael Berry
Robert Negri

Application Number:

JP2017560659A

Publication Date:

June 24, 2020

Filing Date:

June 03, 2016

Export Citation:

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