Abstract: Moisture-shrinkable films can be extrusion blown from flour-poly(methyl acrylate) graft copolymers. The films shrink when exposed at room temperature to relative humidities approaching 100%. The films have potential application in shrink-wrapping irregularly shaped articles without application of heat. Easy removal of the films by water washing is another feature suitable for this use. This invention allows the use of unmodified cereal flour in lieu of gelatinized starch as the substrate for graft polymerization. This substitution greatly simplifies the preparation and isolation of the graft copolymers and reduces the expense of the process by lowering raw material costs.
Type:
Grant
Filed:
June 6, 1995
Date of Patent:
March 11, 1997
Assignee:
The United States of America as represented by the Secretary of Agriculture
Abstract: Tift 94 is a vigorous triploid (2n=3x=27 chromosomes) which has use on golf course fairways and tees, athletic fields, lawns, commercial landscape sites, and other turf areas where a fine-textured, low growing turf is desired. The grass produces less upright growth and has shorter and narrower leaves, and shorter internodes than Midiron from which it was developed and Tifway, two commercially available cultivars. It produces more shoots per node than Midiron. It has better color and turf quality than Midiron.
Type:
Grant
Filed:
April 19, 1996
Date of Patent:
October 21, 1997
Assignee:
The United States of America as represented by the Secretary of Agriculture
Abstract: `TifEagle` is a dense fine-textured triploid (2n=3x=27 chromosomes) bermudagrass which has use on golf greens and other areas requiring mowing heights at 6 mm or less. The grass produces more shoots per unit area that are shorter with narrower and shorter leaves than `Tifdwarf`, the previous cultivar of choice for high quality putting greens mowed at 6 mm or less on golf courses where burmudagrass is preferred. `TifEagle` consistently produced better quality turf and color than `Tifdwarf` at mowing heights less than 6 mm. It shows more resistance than `Tifdwarf` to the tawny mole cricket after one year of establishment.
Type:
Grant
Filed:
July 24, 1997
Date of Patent:
December 21, 1999
Assignee:
The United States of America as represented by the Department of Agriculture