Invention Grant
- Patent Title: Gypsum wallboard
- Patent Title (中): 石膏墙板
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Application No.: US12080656Application Date: 2008-04-04
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Publication No.: US07879965B2Publication Date: 2011-02-01
- Inventor: Ira John Westerman
- Applicant: Ira John Westerman
- Applicant Address: US OH Fairlawn
- Assignee: OMNOVA Solutions Inc.
- Current Assignee: OMNOVA Solutions Inc.
- Current Assignee Address: US OH Fairlawn
- Agency: Fay Sharpe LLP
- Main IPC: C08F257/02
- IPC: C08F257/02 ; C08F291/00 ; C08F2/22 ; C08F2/24
Abstract:
A polymer latex suitable for use in gypsum wallboard or other applications. The polymer latex is a styrene butadiene latex that is substantially stable against divalent ions. The polymer latex includes styrene, butadiene, and an ionic monomer comprised of a 2-acrylamido-2-methyl propanesulfonic acid salt. The polymer latex may also include hydrophilic adjunct comonomers. The latex includes at least 0.25 wt. % of the ionic monomer.
Public/Granted literature
- US20080312378A1 Gypsum wallboard Public/Granted day:2008-12-18
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