1
Francis G Gallagher, Cathy J Hamilton, Steven M Hansen, Hyunkook Shin, Raymond F Tietz: Polyesters and their use in compostable products such as disposable diapers. E I Du Pont de Nemours and Company, December 15, 1992: US05171308 (74 worldwide citation)

The invention provides novel polyesters, fibers and films, nonwovens from the fibers and disposable products of the polyesters such as diapers. The products are degradable under the conditions typically existing in waste composting processes, have low ingredient costs and yet provide strength and to ...


2
Francis G Gallagher, Hyunkook Shin, Raymond F Tietz: Polyester blends and their use in compostable products such as disposable diapers. E I Du Pont de Nemours and Company, June 15, 1993: US05219646 (65 worldwide citation)

The invention provides novel blends of starch with polyesters, and shaped articles of such blends, including fibers, foams and films, nonwovens from the fibers and disposable products such as diapers. The products are degradable under the conditions typically existing in waste composting processes, ...


3
Hyun S Lim, Hyunkook Shin: Controlled-porosity, calendered spunbonded/melt blown laminates. E I du Pont de Nemours and Company, May 3, 1994: US05308691 (42 worldwide citation)

Controlled porosity composite sheets comprising a melt-blown polypropylene fiber web having a spunbonded polypropylene fiber sheet laminated to at least one side thereof are made by calendering an assembly of the component webs in such a manner that, when a two-layer composite sheet is made, the web ...


4
James A Romesser, Hyunkook Shin, Raymond F Tietz: Polyesters and their use in compostable products such as disposable diapers. E I Du Pont de Nemours and Company, March 22, 1994: US05295985 (35 worldwide citation)

The invention provides novel polyesters, fibers and films, nonwovens from the fibers and disposable products of the polyesters such as diapers. The products are degradable under the conditions typically existing in waste compositing processes, have low ingredient costs and yet provide strength and t ...


5
Francis G Gallagher, Cathy J Hamilton, Steven M Hansen, Hyunkook Shin, Raymond F Tietz: Polyesters and their use in compostable products such as disposable diapers. E I Du Pont de Nemours and Company, December 15, 1992: US05171309 (29 worldwide citation)

The invention provides novel polyesters, fibers and films, nonwovens from the fibers and disposable products of the polyesters such as diapers. The products are degradable under the conditions typically existing in waste composting processes, have low ingredient costs and yet provide strength and to ...


6
Edgar N Rudisill, Hans Rudolf Edward Frankfort, Rudolph F Janis, Stephen Buckner Johnson, David Jackson McGinty, H Vaughn Samuelson, Hyunkook Shin, George Vassilatos: Low or sub-denier nonwoven fibrous structures. E I du Pont de Nemours and Company, March 23, 1999: US05885909 (26 worldwide citation)

This invention relates to a new nonwoven material which has very high Frazier permeability while having substantial hydrostatic head liquid barrier properties. The material is comprised of fibers which are approximately one denier and finer fibers which have sufficient strength properties so as not ...


7
Hyunkook Shin, Sam L Samuels: Flash-spinning polymeric plexifilaments. E I Du Pont de Nemours and Company, September 15, 1992: US05147586 (24 worldwide citation)

An improved process is provided for flash-spinning plexifilamentary film-fibril strands of a fiber-forming polyolefin from a C.sub.4-7 hydrocarbon/co-solvent spin liquid that, if released to the atmosphere, presents a greatly reduced ozone depletion hazard, as compared to the halocarbon spin liquids ...


8
David M Gale, Hyunkook Shin: Cement matrix composites and method of making same. E I Du Pont de Nemours and Company, August 26, 1986: US04608089 (24 worldwide citation)

Cement matrix composites of improved flexural toughness are prepared with polyethylene fibrids of high orientation from plexifilamentary structures as reinforcement.


9
Hyunkook Shin: Flash-spinning of polymeric plexifilaments. E I du Pont de Nemours and Company, July 16, 1991: US05032326 (18 worldwide citation)

An improved process for flash-spinning plexifilamentary film-fibril strands is provided. A 5 to 30 and preferably 10 to 20 percent solution of polymer, preferably linear polyethylene, is formed in a spin fluid that consists essentially of 50 to 90 weight percent methylene chloride and 10 to 50 perce ...


10
Hyunkook Shin: Alcohol-based spin liquids for flash-spinning polymeric plexifilaments. E I Du Pont de Nemours and Company, October 5, 1993: US05250237 (12 worldwide citation)

A process is provided for flash-spinning plexifilamentary film-fibril strands of a fiber-forming polyolefin from a C.sub.1-4 alcohol or a C.sub.1-4 alcohol/co-solvent spin liquid that, if released to the atmosphere, presents no or a greatly reduced ozone depletion hazard, as compared to the halocarb ...



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