Invention Grant
- Patent Title: Phospholipid dedusting agents for joint compounds
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Application No.: US16365820Application Date: 2019-03-27
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Publication No.: US11040910B2Publication Date: 2021-06-22
- Inventor: Alexander J. Donovan
- Applicant: UNITED STATES GYPSUM COMPANY
- Applicant Address: US IL Chicago
- Assignee: UNITED STATES GYPSUM COMPANY
- Current Assignee: UNITED STATES GYPSUM COMPANY
- Current Assignee Address: US IL Chicago
- Agency: Vorys, Sater Seymour and Pease LLP
- Agent Pradip Sahu; Philip T. Petti
- Main IPC: C04B14/18
- IPC: C04B14/18 ; C04B28/14 ; C04B14/28 ; C04B24/08 ; C04B24/38 ; B05D3/12 ; C04B14/10 ; C04B103/00 ; C04B111/00

Abstract:
A drying-type joint compound, a setting-type joint compound, and/or a ready-mixed, setting-type joint compound can include a phospholipid dedusting agent. For example, a drying-type joint compound can include: (a) a primary filler at 50 weight percent (wt %) to 98 wt % on a dry basis, wherein the primary filler includes one of calcium carbonate, calcium sulfate dihydrate, and talc, and a mixture thereof (b) a secondary filler at up to 25 wt % on a dry basis; (c) a binder at 1 wt % to 15 wt % on a dry basis; (d) a polymer thickener at 0.05 wt % to 3 wt % on a dry basis; (e) a phospholipid dedusting agent at 0.01 wt % to 3 wt % on a dry basis; (f) an additive up to 10 wt % o on a dry basis; and (g) water at a weight ratio of water to dry components of 1:6 to 2:1.
Information query