Invention Grant
US4795641A Polymer blends having reverse phase morphology for controlled delivery
of bioactive agents
失效
具有反相形态以用于控制递送生物活性剂的聚合物共混物
- Patent Title: Polymer blends having reverse phase morphology for controlled delivery of bioactive agents
- Patent Title (中): 具有反相形态以用于控制递送生物活性剂的聚合物共混物
-
Application No.: US087566Application Date: 1987-08-20
-
Publication No.: US4795641APublication Date: 1989-01-03
- Inventor: David S. Kashdan
- Applicant: David S. Kashdan
- Applicant Address: NY Rochester
- Assignee: Eastman Kodak Company
- Current Assignee: Eastman Kodak Company
- Current Assignee Address: NY Rochester
- Main IPC: C08L1/10
- IPC: C08L1/10 ; A01N25/10 ; A61K9/20 ; A61K9/26 ; A61K9/70 ; A61K47/00 ; A61K47/38 ; C08K5/00 ; C08L1/00 ; C08L1/14 ; D01F2/28 ; C08L1/08
Abstract:
Disclosed are polymer blends containing a minor amount of cellulose acetate and a major amount of cellulose acetate phthalate, cellulose acetate trimellitate or cellulose acetate succinate. The blends have reverse phase morphology, that is, the minor component forms a continuous phase. The blends are useful for zero-order controlled delivery of bioactive agents such as pharmaceutical and agricultural chemicals.
Public/Granted literature
- US6044608A Laminated shingle Public/Granted day:2000-04-04
Information query
