Invention Grant
- Patent Title: Preparation of phenol-formaldehyde resin beads using suspension or emulsion polymerization
- Patent Title (中): 使用悬浮液或乳液聚合制备酚醛树脂珠
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Application No.: US14092267Application Date: 2013-11-27
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Publication No.: US09133295B2Publication Date: 2015-09-15
- Inventor: Shahid P. Qureshi , Xing Dong , Charles C. Chan , Joseph Frank Ludvik
- Applicant: Georgia-Pacific Chemicals LLC
- Applicant Address: US GA Atlanta
- Assignee: Georgia-Pacific Chemicals LLC
- Current Assignee: Georgia-Pacific Chemicals LLC
- Current Assignee Address: US GA Atlanta
- Agent Ram W. Sabnis
- Main IPC: C08G8/10
- IPC: C08G8/10 ; C08G8/32 ; C08G8/22 ; C08G85/00

Abstract:
Methods for making polymer particles in gel form via an emulsion and/or suspension polymerization are provided. In at least one specific embodiment, the method can include reacting a first reaction mixture comprising a phenolic monomer, an aldehyde monomer, and a first catalyst to produce a prepolymer. The method can also include combining the prepolymer with a carrier fluid and a second catalyst to produce a second reaction mixture. The second catalyst can include a dicarboxylic acid, an anhydride, a dihydroxybenzene, or any mixture thereof. The method can also include polymerizing the prepolymer to form polymer particles in gel form.
Public/Granted literature
- US20140148560A1 PREPARATION OF PHENOL-FORMALDEHYDE RESIN BEADS USING SUSPENSION OR EMULSION POLYMERIZATION Public/Granted day:2014-05-29
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