发明授权
- 专利标题: Enzyme-containing granules coated with hydrolyzed polyvinyl alcohol or copolymer thereof
- 专利标题(中): 含有水解聚乙烯醇的含酶颗粒或其共聚物
-
申请号: US957973申请日: 1992-10-07
-
公开(公告)号: US5324649A公开(公告)日: 1994-06-28
- 发明人: Raymond E. Arnold , Nathaniel T. Becker , Matthew G. Boston , Aino Mansikkamaki , Curran M. Simpson , Daniel J. Wendt
- 申请人: Raymond E. Arnold , Nathaniel T. Becker , Matthew G. Boston , Aino Mansikkamaki , Curran M. Simpson , Daniel J. Wendt
- 申请人地址: NY Rochester
- 专利权人: Genencor International, Inc.
- 当前专利权人: Genencor International, Inc.
- 当前专利权人地址: NY Rochester
- 主分类号: C11D3/37
- IPC分类号: C11D3/37 ; C11D3/386 ; C11D17/00 ; C12N9/98 ; C12N11/02 ; C12N11/04 ; C12N11/14 ; C11D10/00 ; C12N11/08 ; D06M16/00
摘要:
A granular enzyme composition is produced, having reduced tendencies to form dust and leave residue, and exhibiting improved stability and delayed release characteristics. The granular composition comprises a core, an enzyme layer and an outer coating layer. The enzyme layer, and optionally the core and outer coating layer, contain a vinyl polymer. The vinyl polymer is preferably a hydrolyzed polyvinyl alcohol or copolymer thereof. The hydrolyzed polyvinyl alcohol has varying degrees of hydrolysis in the core, enzyme layer and outer coating layer. Also disclosed are methods for making such enzyme-containing granules, the methods having greatly reduced processing time.
公开/授权文献
- US4226319A Hydraulic clutch 公开/授权日:1980-10-07
信息查询