A shape memory polymer which is a reaction product of styrene, a vinyl compound, a multifunctional crosslinking agent and an initiator. The shape memory polymer has particular application as a contact lens mold.
대표청구항▼
1. A shape memory polymer comprising a modifying polymer, a reaction product of styrene, a vinyl compound other than styrene, about 0.5 to about 5% by weight of a multifunctional crosslinking agent and an initiator. 2. A shape memory polymer comprising a reaction product of styrene, a vinyl compound
1. A shape memory polymer comprising a modifying polymer, a reaction product of styrene, a vinyl compound other than styrene, about 0.5 to about 5% by weight of a multifunctional crosslinking agent and an initiator. 2. A shape memory polymer comprising a reaction product of styrene, a vinyl compound other than styrene, about 0.5 to about 5% by weight of a multifunctional crosslinking agent and an initiator, wherein said vinyl compound is vinyl neodecanoate, vinyl benzoate, vinyl propionate, vinyl stearate, a methylstyrene, 4-(vinyloxy)butyl stearate or a vinyl pyridine. 3. A shape memory polymer in accordance with claims 1 or 2 , wherein said crosslinking agent is difunctional. 4. A shape memory polymer in accordance with claim 3 wherein said difunctional crosslinking agent is divinyl benzene, bis(4-(vinyloxy)butyl)terephthalate or bis(4-((vinyloxy)methyl)cyclohexyl)methyl terephthalate. 5. A shape memory polymer in accordance with claims 1 or 2 , wherein said initiator is a free radical initiator or ionic initiator. 6. A shape memory polymer in accordance with claim 5 wherein said initiator is a free radical initiator. 7. A shape memory polymer in accordance with claim 6 wherein said free radical initiator is an organic peroxide. 8. A shape memory polymer in accordance with claim 5 wherein said initiator is a cationic initiator. 9. A shape memory polymer in accordance with claim 1 wherein said modifying polymer is a thermoplastic polymer compatible with said polymer formed by the reaction product of said styrene and said vinyl compound. 10. A shape memory polymer in accordance with claims 1 or 2 , wherein said reaction mixture is polymerized at a temperature in the range of between about 20° C. and about 150° C. and a pressure in the range of between about 14.7 psi and 50 psi over a time period in the range of between about 2 seconds and about 4 days. 11. A shape memory polymer comprising a reaction product of styrene, a vinyl compound selected from group consisting of vinyl neodecanoate, vinyl benzoate, vinyl propionate, vinyl stearate, a methylstyrene, a vinyl pyridine and 4-(vinyloxy) butyl stearate, a difunctional crosslinking agent and a free radical or a cationic initiator. 12. A shape memory polymer in accordance with claim 11 wherein said difunctional crosslinking agent is selected from the group consisting of divinyl benzene, bis[4-(vinyloxy)butyl] terephthalate and bis[[(4-[vinyloxy)methyl]cyclohexyl]methyl] terephthalate. 13. A shape memory polymer in accordance with claim 12 wherein said free radical or cationic initiator is selected from the group consisting of t-butyl peroxide, t-butyl hydroxyperoxide, benzoyl peroxide, dicumyl peroxide, lauroyl peroxide, 2,2′-azobisisobutyronitrile, boron trifluoride, boron trifluoride diethyl etherate, aluminum trichloride and tin (IV) chloride. 14. A shape memory polymer in accordance with claim 13 wherein said reaction product includes a thermoplastic polymer compatible with the polymer formed by the reaction product of said styrene and said vinyl compound. 15. A shape memory polymer in accordance with claim 14 wherein said thermoplastic polymer is polystyrene or a polyolefin. 16. A shape memory polymer in accordance with claim 13 wherein said vinyl compound is vinyl neodecanoate, said difunctional crosslinking agent is divinyl benzene and said initiator is selected from the group consisting of dicumyl peroxide, benzoyl peroxide and lauroyl benzene. 17. A shape memory polymer in accordance with claim 16 wherein said reaction product includes polystyrene. 18. A shape memory polymer in accordance with claim 11 wherein said styrene comprises between about 30% and about 95%; said vinyl compound comprises between about 5% and about 60%; said difunctional crosslinking agent comprises between about 0.5% and about 5% and said initiator comprises between about 0.1% and about 4%, said percentages being by weight, based on the total weight of said shape memory poly mer reaction mixture. 19. A shape memory polymer in accordance with claim 14 wherein said styrene comprises between about 40% and about 85%; said vinyl compound comprise between about 5% and about 20%; said difunctional crosslinking agent comprises between about 0.6% and about 3%; said initiator comprises between about 0.5% and about 3%; and said thermoplastic comprises between about 5% and about 50%, said percentages being by weight, based on the total weight of said shape memory polymer reaction mixture. 20. A shape memory polymer comprising a reaction product of styrene, a vinyl compound other than styrene, a multifunctional crosslinking agent, an initiator and a modifying polymer. 21. A shape memory polymer in accordance with claim 20 wherein said vinyl compound is vinyl neodecanoate, vinyl benzoate, vinyl propionate, vinyl stearate, a methylstyrene, 4-(vinyloxy)butyl stearate or a vinyl pyridine. 22. A shape memory polymer in accordance with claim 20 wherein said crosslinking agent is difunctional. 23. A shape memory polymer in accordance with claim 22 wherein said difunctional crosslinking agent is divinyl benzene, bis(4-(vinyloxy)butyl)terephthalate or bis(4-((vinyloxy)methyl)cyclohexyl)methyl terephthalate.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (6)
Tsuno Takaharu,JPX, Alkyl-containing porous resin, process for its preparation and its use.
Watanabe Kazushi,JPX, Crosslinkable polymer composition, molded article therefrom, process for the preparation thereof, crosslinked nonwoven cloth, and process for the preparation thereof.
Hemmelgarn, Christopher Douglas; Margraf, Thomas Wood; Havens, David Ernest; Reed, John Lewis; Snyder, Logan Wayne; Louderbough, Anthony; Dietsch, Benjamin Allen, Composite self-healing system.
Gurtner, Geoffrey C.; Dauskardt, Reinhold H.; Longaker, Michael T.; Yock, Paul, Devices and bandages for the treatment or prevention of scars and/or keloids and methods and kits therefor.
Havens, David E.; Everhart, Matthew C.; Cable, Kristin Marie; Traxler, Eric W.; Fiegenbaum, Carl Ray; Priest, Jeffrey W.; Caster, Kodi Elizabeth Ann, Method for removing a SMP apparatus from a cured composite part.
Havens, David E.; Everhart, Matthew C.; Kysar, Randy Rex; Fiegenbaum, Carl Ray; Priest, Jeffrey W.; Strelow, Delbert Leon; Ford, Kevin John; Pickell, Kristin Dru, Methods and systems for co-bonding or co-curing composite parts using a rigid/malleable SMP apparatus.
Havens, David E.; Everhart, Matthew C.; Margraf, Thomas Wood; Everhart, Joel James; Kysar, Randy Rex; Fiegenbaum, Carl Ray; Priest, Jeffrey W.; Strelow, Delbert Leon; Pickell, Kristin Dru, Methods and systems for fabricating composite parts using a SMP apparatus as a rigid lay-up tool and bladder.
Everhart, Matthew C.; Havens, David E.; Everhart, Joel James; Kysar, Randy Rex; Fiegenbaum, Carl Ray; Priest, Jeffrey W.; Ford, Kevin John; Strelow, Delbert Leon, Methods and systems for fabricating composite stiffeners with a rigid/malleable SMP apparatus.
Everhart, Matthew C.; Havens, David E.; Kysar, Randy Rex; Fiegenbaum, Carl Ray; Priest, Jeffrey W.; Strelow, Delbert Leon; Caster, Kodi Elizabeth Ann, Methods and systems for forming integral composite parts with a SMP apparatus.
Everhart, Joel James; Havens, David E.; Hanson, Steven Fillmore; Priest, Jeffrey W.; Fiegenbaum, Carl Ray; Barnell, Thomas Joseph, Reconfigurable shape memory polymer tooling supports.
Huelskamp, Scott Robert; Everhart, Joel James; Havens, David E.; Hanson, Steven Fillmore; Priest, Jeffrey W.; Fiegenbaum, Carl Ray; Barnell, Thomas Joseph, Reconfigurable shape memory polymer tooling supports.
Traxler, Eric W.; Vanderhorst, Jamie B.; Havens, David E.; Kirby, Brandon C.; Fisher, Michael J.; Everhart, Joel J.; Everhart, Matthew C., Venting mechanisms for containers.
Jackson, Jasper; Zepeda, John A.; French, Adam C.; Doud, Darren G.; Gurtner, Geoffrey C.; Follmer, Brett A.; Beasley, William R.; Yock, Paul; Ichiryu, Keiichiro; Cardona Pamplona, Manuel A.; Krog, Tor C.; Levi, Kemal, Wound or skin treatment devices and methods.
Jackson, Jasper; Zepeda, John A.; French, Adam; Doud, Darren G.; Gurtner, Geoffrey C.; Follmer, Brett A.; Beasley, William R.; Yock, Paul G.; Ichiryu, Keiichiro; Cardona Pamplona, Manuel A.; Krog, Tor C.; Levi, Kemal, Wound or skin treatment devices and methods.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.