Aqueous emulsions of crystalline polymers for coating seeds

US6199318A · kind A · utility

Assignee

• Landec Corporation · US

Inventors

• Ray F. Stewart · Redwood City, US
• Natarajan Balachander · Sunnyvale, US
• Steven Bitler · Menlo Park, US
• Loc Phan · San Francisco, US
• Valentine Y. Yoon · Lompoc, US

Key dates

• Filing date: Sep 15, 1997
• Grant date: Mar 13, 2001
• Expiry date: Sep 15, 2017

Classification

• Technology area (CPC D): Textiles; Paper
• CPC primary: D06M2200/20
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

Crystalline polymers are prepared as a latex, and are useful for coating fibrous materials such hair and fabrics. The latex can have a high solids content greater than 30%, a residual monomer content of less than 1%, and can be used for repeatedly setting fibrous materials into desired configurations. The latex is also useful for coating organisms such as seeds. The particulate coating extends the dormancy of the organism and/or protects the organism, and is easily shed by a germinating seed. The coating can contain a seed coating additive, such as a colorant or fungicide.