Time release protein
First Claim
Patent Images
1. A process for preparing a time release delivery vehicle for delivering an active ingredient over time, comprising the steps of:
- (a) providing a biodegradable particulate seed protein material having a porous structure, wherein said particulate is in association with lipid materials naturally occurring in said seed;
(b) removing at least a portion of said lipid material from the particulate to form a substantially dry seed protein having a median particle size sufficiently small that said particulate is in the form of a free flowing powder; and
combining the dry protein with the active ingredient under conditions of agitation so that the active ingredient will permeate the porous structure of the individual particles of the protein, thereby forming a material that will provide sustained release of said active ingredient over a period of at least 20 minutes.
10 Assignments
0 Petitions
Accused Products
Abstract
Disclosed is a porous protein particle for delivering over a period of time an active ingredient impregnated therein, and methods of making and using the same. The protein particles have a median size less than about 50 microns. Active ingredient entrapped in the porous structure is gradually released from the protein particle.
-
Citations
13 Claims
-
1. A process for preparing a time release delivery vehicle for delivering an active ingredient over time, comprising the steps of:
-
(a) providing a biodegradable particulate seed protein material having a porous structure, wherein said particulate is in association with lipid materials naturally occurring in said seed; (b) removing at least a portion of said lipid material from the particulate to form a substantially dry seed protein having a median particle size sufficiently small that said particulate is in the form of a free flowing powder; and combining the dry protein with the active ingredient under conditions of agitation so that the active ingredient will permeate the porous structure of the individual particles of the protein, thereby forming a material that will provide sustained release of said active ingredient over a period of at least 20 minutes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 13)
-
-
12. A process for preparing a time release delivery vehicle for delivering an active ingredient over time, comprising the steps of:
-
providing a biodegradable particulate seed protein having a porous structure, wherein said porous structure is substantially free of water and has a sufficiently small particle size that it is in the form of a free flowing powder and has time release characteristics; and combining the protein with active ingredient selected from the group consisting of medicinals, pharmaceuticals, pesticides, herbicides, fungicides, volatile materials, cosmetics, deodorants, cleansers, fertilizers, and sunscreens, which active ingredient is in liquid form, so that said active ingredient penetrates into the porous structure of said protein and provides a time release vehicle for said active ingredient suitable to provide sustained release of said active ingredient over a period of at least 20 minutes.
-
Specification