Invention Grant
- Patent Title: Method for making biodegradable superabsorbent particles
- Patent Title (中): 制造可生物降解的超吸收颗粒的方法
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Application No.: US12164966Application Date: 2008-06-30
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Publication No.: US08641869B2Publication Date: 2014-02-04
- Inventor: S Ananda Weerawarna
- Applicant: S Ananda Weerawarna
- Applicant Address: US WA Federal Way
- Assignee: Weyerhaeuser NR Company
- Current Assignee: Weyerhaeuser NR Company
- Current Assignee Address: US WA Federal Way
- Agent Timothy M. Whalen
- Main IPC: D21F11/00
- IPC: D21F11/00 ; D21H11/00 ; A61K9/50 ; C08B30/04 ; D21C3/00 ; A61K6/083 ; A61K8/72 ; B01J20/00 ; D21H19/60 ; B27N3/00 ; C08H1/06
Abstract:
A method for making particles containing carboxyalkyl cellulose, comprising blending a carboxyalkyl cellulose and a starch in water to provide an aqueous gel; treating the aqueous gel with a crosslinking agent to provide a crosslinked gel; drying the crosslinked gel to provide a solid; comminuting the solid to provide a plurality of particles.
Public/Granted literature
- US20090324731A1 Method for Making Biodegradable Superabsorbent Particles Public/Granted day:2009-12-31
Information query
