A film formed from a water-soluble polymer matrix within which is contained at least one fragrance is provided. The film is water-sensitive (e.g., water-soluble, water-dispersible, etc.) so that upon contact with a sufficient amount of water, the polymer matrix loses its integrity over time to incre
A film formed from a water-soluble polymer matrix within which is contained at least one fragrance is provided. The film is water-sensitive (e.g., water-soluble, water-dispersible, etc.) so that upon contact with a sufficient amount of water, the polymer matrix loses its integrity over time to increasingly expose the fragrance to the ambient environment for releasing its odor. The ability to incorporate a fragrance into the polymer matrix is achieved in the present invention by controlling a variety of aspects of the film construction, including the nature of the fragrance, the nature of the water-soluble polymer, the manner in which the polymer matrix and fragrance are melt processed, etc. For example, the fragrance may be injected directly into the extruder and melt blended with the water-soluble polymer. In this manner, the costly and time-consuming steps of pre-encapsulation or pre-compounding of the fragrance into a masterbatch are not required. Furthermore, to obtain a balance between the ability of the fragrance to release the desired odor during use and likewise to minimize the premature exhaustion of the odor during melt processing, the fragrance is selected to have a boiling point (at atmospheric pressure) within a certain range, such as from about 125° C. to about 350° C.
대표청구항▼
1. A method for forming a fragranced film, the method comprising: supplying at least one film-forming, water-soluble polymer to an extruder, wherein the water-soluble polymer includes a modified starch polymer;directly injecting at least one liquid fragrance into the extruder to form a blend compris
1. A method for forming a fragranced film, the method comprising: supplying at least one film-forming, water-soluble polymer to an extruder, wherein the water-soluble polymer includes a modified starch polymer;directly injecting at least one liquid fragrance into the extruder to form a blend comprising the water-soluble polymer and the fragrance, wherein the liquid fragrance has a boiling point at atmospheric pressure of from about 125° C. to about 350° C., wherein injection of the liquid fragrance is accomplished without pre-compounding the fragrance;supplying a plasticizer to the extruder, wherein the plasticizer consists of a polyhydric alcohol, wherein the polyhydric alcohol is a sugar, a sugar alcohol, a polyol, or a combination thereof, wherein the polyol is ethylene glycol, glycerol, propylene glycol, dipropylene glycol, butylene glycol, hexane triol, or a combination thereof; andextruding the blend onto a surface to form a film, wherein the at least one water-soluble polymer constitutes from about 40 wt. % to about 99.9 wt. % of the polymer content of the film. 2. The method of claim 1, wherein the fragrance has a boiling point at atmospheric pressure of from about 175° C. to about 250° C. 3. The method of claim 1, wherein the water-soluble polymer further includes a vinyl alcohol polymer. 4. The method of claim 3, wherein the vinyl alcohol polymer is a vinyl alcohol homopolymer. 5. The method of claim 3, wherein the vinyl alcohol polymer has a degree of hydrolysis of from about 80 mole % to about 95 mole %. 6. The method of claim 1, wherein the plasticizer is mixed with the water-soluble polymer prior to being supplied to the extruder. 7. The method of claim 1, wherein fragrances constitute from about 0.1 wt. % to about 15 wt. % of the film. 8. The method of claim 1, wherein fragrances constitute from about 1 wt. % to about 5 wt. % of the film. 9. The method of claim 1, wherein the weight ratio of water-soluble polymers to fragrances in the film is from about 20 to about 80. 10. The method of claim 1, wherein extruding occurs at a temperature of from about 75° C. to about 350° C. 11. The method of claim 1, wherein the liquid fragrance is injected into a melt section of the extruder. 12. The method of claim 1, wherein the water-soluble polymer is supplied to a hopper of the extruder. 13. The method of claim 1, further comprising supplying at least one biodegradable polyester to the extruder. 14. The method of claim 13, wherein the biodegradable polyester includes an aliphatic-aromatic copolyester. 15. The method of claim 1, wherein the modified starch is a starch ether, starch ester, or a combination thereof. 16. The method of claim 15, wherein the modified starch is a hydroxyalkyl starch. 17. The method of claim 1, wherein the water-soluble polymer has a solution viscosity of from about 50 to about 800 milliPascal seconds. 18. The method of claim 1, wherein the film is formed by extruding the blend from the extruder immediately after the blend is formed. 19. The method of claim 1, wherein the at least one water-soluble polymer constitutes from about 50 wt. % to about 99.5 wt % of the polymer content of the film.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (105)
Buchanan Charles M. (Bluff City TN) Gardner Robert M. (Gray TN) White Alan W. (Kingsport TN), Aliphatic-aromatic copolyesters and cellulose ester/polymer blends.
Buchanan Charles M. (Bluff City TN) Gardner Robert M. (Gray TN) Wood Matthew D. (Kingsport TN) White Alan W. (Kingsport TN) Gedon Steven C. (Kingsport TN) Barlow ; Jr. Fred D. (Kingsport TN), Aliphatic-aromatic copolyesters and cellulose ester/polymer blends.
Buchanan Charles M. (Bluff City TN) Gardner Robert M. (Gray TN) Wood Matthew D. (Kingsport TN) White Alan W. (Kingsport TN) Gedon Steven C. (Kingsport TN) Barlow ; Jr. Fred D. (Kingsport TN), Aliphatic-aromatic copolyesters and cellulose ester/polymer blends.
Buchanan Charles M. (Bluff City TN) Gardner Robert M. (Gray TN) Wood Matthew D. (Kingsport TN) White Alan W. (Kingsport TN) Gedon Steven C. (Kingsport TN) Barlow ; Jr. Fred D. (Kingsport TN), Aliphatic-aromatic copolyesters and cellulose ester/polymer blends.
Buchanan Charles M. (Bluff City TN) Gardner Robert M. (Gray TN) Wood Matthew D. (Kingsport TN) White Alan W. (Kingsport TN) Gedon Steven C. (Kingsport TN) Barlow ; Jr. Fred D. (Kingsport TN), Aliphatic-aromatic copolyesters and cellulose ester/polymer blends.
Buchanan Charles M. ; Gardner Robert M. ; Wood Matthew D. ; White Alan W. ; Gedon Steven C. ; Barlow ; Jr. Fred D., Aliphatic-aromatic copolyesters and cellulose ester/polymer blends.
Shefer, Adi; Shefer, Shmuel David; White, Michael John Robert, Application of film forming technology to fragrance control release systems; and resultant fragrance control release systems.
Stefely James S. ; Schultz David W. ; Schallinger Luke E. ; Perman Craig A. ; Leach Chester L. ; Duan Daniel C., Biocompatible compounds for pharmaceutical drug delivery systems.
Bassi Sukh (Atchison KS) Maningat Clodualdo C. (Platte City MO) Chinnaswamy Rangaswamy (Kansas City MO) Nie Li (Kansas City MO), Biodegradable grain protein-based solid articles and forming methods.
Willett Julious L. ; Doane William M. ; Xu Wayne ; Mang Michael N. ; White Jerry E., Biodegradable polyester compositions with natural polymers and articles thereof.
Volker Warzelhan DE; Bernd Bruchmann DE; Dieter Boeckh DE; Ursula Seeliger DE; Motonori Yamamoto DE; Peter Bauer DE, Biodegradable polymers, the production thereof and the use thereof for producing biodegradable moldings.
Warzelhan Volker,DEX ; Bruchmann Bernd,DEX ; Boeckh Dieter,DEX ; Seeliger Ursula,DEX ; Yamamoto Motonori,DEX ; Bauer Peter,DEX, Biodegradable polymers, the production thereof and the use thereof for producing biodegradable moldings.
Gruber Patrick Richard ; Hall Eric Stanley ; Kolstad Jeffrey John ; Iwen Matthew Lee ; Benson Richard Douglas ; Borchardt Ronald Leo, Continuous process for the manufacture of lactide and lactide polymers.
Stepto Robert F. T. (Riehen CHX) Tomka Ivan (Lenzburg CHX) Dobler Beat (Basel CHX) Pyrah Keith (Rogerstone GBX), Destructurized starch and method for making same.
Famili Amir (Schnecksville PA) Marten Finn L. (Macungie PA) Nangeroni James F. (Allentown PA), Extrudable polyvinyl alcohol compositions containing thermoplastic polyurethane.
McDermott Keith J. (Bound Brook NJ) Teffenhart John M. (Edison NJ) Shefer Shmuel D. (East Brunswick NJ) Greene David A. (Wanamassa NJ) Smith Leslie C. (Jamesburg NJ) Beck Charles E. J. (Summit NJ), Extruded fragrance-containing polyvinyl alcohol and use thereof.
Soili Peltonen FI; Pertti Tiitola FI; Jani Vuorenp{umlaut over (aa)} FR; Harri Happonen FI; Pertti Tormala FI, Hydroxyalkylated starch ester and preparation and use thereof.
Munteanu Marina A. (New York NY) Oltarzewski Edward S. (Mercerville NJ) Shechter Leon (Summit NJ) Warren Craig B. (Rumson NJ), Insect repellent, pheremonal, animal repellent diagnostic and/or aroma augmenting or enhancing compositions and articles.
Ohara Hitomi,JPX ; Sawa Seiji,JPX ; Fujii Yasuhiro,JPX ; Ito Masahiro,JPX ; Oota Masaaki,JPX, Method for producing polylactic acid and apparatus used therefor.
David Michael Schertz ; James Hongxue Wang ; Gregory J. Wideman ; William S. Pomplun, Methods of making blend compositions of an unmodified poly vinyl alcohol and a thermoplastic elastomer.
Bassi Sukh ; Maningat Clodualdo C. ; Chinnaswamy Rangaswamy ; Nie Li ; Weibel Michael K. ; Watson John J., Modified wheat glutens and use thereof in fabrication of films.
Rettenbacher Markus,ATX ; Mundigler Norbert,ATX, Moulding made from or including an environmentally acceptable material, a process for manufacturing the same, and the us.
Kochvar, Kelly Ann; Soyez, Heidi Simonne Mariette; Forth, Peter Jens; Boutique, Jean Pol; Wagers, Ruth Anne; Wahl, Errol Hoffman; Lynch, Matthew Lawrence; Fisher, Wayne Robert, Rapidly dissolvable polymer films and articles made therefrom.
Lee Bin (Coraopolis PA) Pielartzik H. (Pittsburgh PA) Kumpf Robert J. (Pittsburgh PA) Lau Clifford J. (Sewickley PA) Yourd Raymond A. (Pittsburgh PA) Wiggins Jeffrey S. (Pittsburgh PA), Thermoplastic composition containing polyurethane and polypropylene.
Bastioli, Catia; Foa', Marco; Cella, Giandomenico; Floridi, Giovanni; Farachi, Fernanda; Milizia, Tiziana, Use of polyester resins for the production of articles having good properties as barriers to water vapor.
Wang, James H.; Schertz, David M., Water-responsive, biodegradable compositions and films and articles comprising a blend of polylactide and polyvinyl alcohol and methods for making the same.
Wang James Hongxue ; Schertz David Michael ; Soerens Dave Allen ; Rhim Hannong, Water-responsive, biodegradable fibers comprising polylactide modified polylactide and polyvinyl alcohol, and method fo.
Wang James Hongxue ; Schertz David Michael ; Soerens Dave Allen, Water-responsive, biodegradable film compositions comprising polylactide and polyvinyl alcohol, and a method for making the films.
Peterson, Eric Paul; Lappi, Todd Richard; D'Amico, Daniel M.; Laitala, John Patrick; Carignan, Ryan David, Air freshener dispensers, cartridges therefor, systems, and methods.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.