Southwest Research Institute

Electric Power Research Institute Incorporated

The Dow Chemical Company

Pioneer Hi-bred International, Inc.

Donald J Mangold

Herman W Schlameus

William W Harlowe, Jr

William A McMahon

Robert E Lyle, Jr

Bruce S Bernstein

Nollie F Swynnerton

Stephen Thomas Wellinghoff

Mary C Marshall

William Michael Rutherford

Wilfred W Wilson

William C Fox

Thomas B Aufdemorte

Joseph R Lebeda

Sotiros C Polemenakos

George R Holt

James R Scott

J Larry Potter

Robert G Triplett

Jack E Allen

William M Rutherford

William W Harlowe

The present invention provides an apparatus and method for controlled release of a fumigant into a wooden structure to prevent decay of that structure. According to the present invention, a fumigant in an ampule or container is inserted into the wooden structure. The ampule or container is made of a polymeric material that does not react with the fumigant, but having walls which are permeable to the fumigant such that, when inserted into the wooden structure, the rate of release of the fumigant through the walls of the ampule is slow enough to continuously treat and arrest decay of the wooden structure, particularly decay caused by fungi, over extended periods of time (i.e., 1, 5, 7, 10, 15, 20 or 30 years). The rate of release of the fumigant can be controlled by the type of fumigant, the shape of the container, the specific polymer used to make the container, and by the thickness of the container wall.

Controlled release ampule containing a fumigant

Controlled fumigation of wooden structures

Osteoprogenitor cells encapsulated in alginate and alternatively, additionally encapsulated in poly-L-lysine and/or agarose promote regeneration of bone at the site of implantation. The present invention provides a composition comprising osteoprogenitor cells embedded or encapsulated in alginate and the use of said microcapsules for the facilitation of bone regeneration.

Composition and method of promoting hard tissue healing

A process for preparing fatty acid microspheres of microorganisms by rotary disc processing is disclosed. The process is designed to minimize heat risk to the microorganisms during production. Microsphere particles of fatty acid matrix containing microorganisms, preferably stearic acid encapsulated Enterococcus faecium, are also provided.

Process for preparing rotary disc fatty acid microspheres of

A biodegradable composition comprising a polymer matrix having distributed substantially uniformly therethrough hollow sphere-like inclusions or microcapsules, said polymer matrix consisting essentially of a water-soluble polymer/polymer-compatible salt complex with said salt present in an amount sufficient to render said polymer insoluble in water and products made by shaping such composition.

Biodegradable composition and products

A radioprotective agent consisting essentially of 3-(3'-aminoalkyl)-2-arylthiazolidine or a pharmacologically acceptable salt thereof having the formula: ##STR1## wherein R is a NH.sub.2 R' or XNHR' radical in which R' is a C.sub.2 to C.sub.4 alkyl group and X is a C.sub.1 to C.sub.3 alkyl group and Ar is an aromatic aldehyde moiety; or a pharmacologically acceptable salt thereof.

Radioprotective agents and their method of manufacture

The present invention comprises a haloacetoxyalkyl ether having the formula: ##STR1## wherein R is H or a C.sub.1 -C.sub.4 substituted or unsubstituted alkyl group, R' is H or a C.sub.1 -C.sub.3 group, and X is chlorine or fluorine; aroyloxymethyl ethers having the formula:

Alkylating agents and method of use thereof

A method of manufacture and the product made thereby are set forth; in the preferred and illustrated embodiment, a core including an insect poison is encapsulated by shell material melting and hardening for encapsulation. The core is primarily soybean extract mixed with DURSBAN.RTM. insecticide, an example of a toxicant. The surrounding shell or encapsulation is formed by melt extrusion of shell material. The surrounding shell encloses the core material to form an impervious shell. The surrounding shell includes soy protein as an insect attractant mixed in gelatin or poly(vinyl alcohol). A gelling agent such as carrageenan and the attractant were added to the shell. The beads formed by the melt extrusion encapsulation has sufficient shell strength to enable mechanical handling for dispensing, are resistant to water, do not bleed from the inside to the outside, and yet can be penetrated by the insect.

Microencapsulated ant bait

Growing community of inventors

San Antonio, TX, United States of America

Donald J Mangold