121 |
Polymer network with triple shape effect and associated programming method |
US14529905 |
2014-10-31 |
US09475269B2 |
2016-10-25 |
Marc Behl; Andreas Lendlein; Yakai Feng; Jorg Zotzmann |
The invention relates to a polymer network with triple-shape-memory effect and an associated programming method. The invention also relates to a method for producing layer systems made of shape-memory materials comprising the polymer network. The polymer network includes A) a first crystalline switching segment made of a star polymer; and B) a second crystalline switching segment made of a linear polymer or a star polymer. |
122 |
High temperature shape memory polymers |
US14437014 |
2013-11-20 |
US09447253B2 |
2016-09-20 |
Robert Weiss; Ying Shi; Mitra Yoonesi |
A shape memory composition includes a high temperature ionomer having a glass transition temperature or a melting temperature of 100° C. or greater and a modulus at room temperature of 1×108 Pa or greater, the high temperature ionomer including a polymer with ionic units either within the backbone of the polymer or pendant to the backbone or both. The shape memory composition includes crystalline or glassy domains of a low molecular weight non-polymeric compound dispersed in the high temperature ionomer and interacting the ionic units of the high temperature ionomer to form a secondary network characterized by being a reversible network in that it is compromised by the heating of the low molecular weight non-polymeric compound to change out of its crystalline or glassy phase. |
123 |
Shape memory elastomeric composites and method of manufacturing |
US12842602 |
2010-07-23 |
US09328209B2 |
2016-05-03 |
Patrick T. Mather; Luo Xiaofan |
A shape memory composite consisting of an electrospun non-woven fiber mat and an elastomeric resin matrix. The fiber mat is made from a semi-crystalline polymer, poly(ε-caprolactone) (PCL) and serves as the “switching phase” for shape fixing and recovery. The resin matrix, a crosslinked PDMS elastomer, imparts softness as well as entropic elasticity to the material. PCL is first electrospun from a chloroform/DMF solution. The resulting microfiber mat was then immersed in a two-part (base resin and crosslinking agent) mixture of Sylgard 184 with a vacuum applied to infiltrate the fiber mat with the mixture. The infiltrated fiber mat is then removed from the mixture and cured at room temperature for two days. |
124 |
Multi-modal shape memory polymers |
US14615322 |
2015-02-05 |
US09308293B2 |
2016-04-12 |
Malcolm Brown; Horacio Montes De Oca Balderas; Michael Hall; John Rose |
The present disclosure relates to a multi-modal shape memory polymer material comprising a blend or at least one polymer component having a first molecular weight and at least a second polymer component having a second molecular weight that is less than the first component. |
125 |
MODIFIED POLYESTERS AND PROCESSES FOR MANUFACTURING THE SAME |
US14841861 |
2015-09-01 |
US20150368395A1 |
2015-12-24 |
Wei-Hung Chen; Tai-You Chen; Pao-Chi Chen; Chin-Wen Chen; Syang-Peng Rwei |
Disclosed herein are processes for manufacturing modified polyesters. An esterification reaction of diacid, diol and a branching agent having at least three carboxyl groups is carried out at a temperature of about 180 to 300° C. and a pressure of about 1 to 4 bar to obtain a product of esterification. A polycondensation reaction of the product of esterification and a diamine is carried out at a pressure below about 0.01 bars to obtain the modified polyester. |
126 |
BIDIRECTIONAL SHAPE-MEMORY POLYMER, METHOD OF ITS PRODUCTION AND ITS USE |
US14653941 |
2013-12-20 |
US20150344600A1 |
2015-12-03 |
Marc Behl; Karl Kratz; Ulrich Noechel; Tilman Sauter; Joerg Zotzmann; Srinivasa Reddy Chaganti; Andreas Lendlein |
The present invention relates to an article consisting of or comprising a bidirectional shape-memory polymer (bSMP), the bSMP comprising: first phase-segregated domains (AD) having a first transition temperature (Tt,AD) corresponding to a crystallization transition or glass transition of the first domains (AD), second phase-segregated domains (SD) having a second transition temperature (Tt,AD) corresponding to a crystallization transition or glass transition of the second domains (SD), the second transition temperature (Tt,SD) being higher than the first transition temperature (Tt,AD), and covalent or physical bonds cross-linking the polymer chains of the bSMP, and in this way interconnecting the first and second domains (AD, SD), wherein the second phase-separated domains (SD) form a skeleton which is at least partially embedded in the first phase-segregated domains (AD), and wherein polymer chain segments of the bSMP forming the first domains (AD) are substantially orientated in a common direction, such that the bSMP is able to undergo a reversible shape-shift between a first shape (A) at a first temperature (Thigh) and a second shape (B) at a second temperature (Tlow) upon variation of temperature between the first and second temperature (Thigh, Tlow) driven by the crystallization and melting or vitrification and melting of the first phase-separated domains (AD) and without application of an external stress, with Tlow
|
127 |
HIGH TEMPERATURE SHAPE MEMORY POLYMERS |
US14437014 |
2013-11-20 |
US20150284498A1 |
2015-10-08 |
Robert Weiss; Ying Shi; Mitra Yoonesi |
A shape memory composition includes a high temperature ionomer having a glass transition temperature or a melting temperature of 100° C. or greater and a modulus at room temperature of 1×108 Pa or greater, the high temperature ionomer including a polymer with ionic units either within the backbone of the polymer or pendant to the backbone or both. The shape memory composition includes crystalline or glassy domains of a low molecular weight non-polymeric compound dispersed in the high temperature ionomer and interacting the ionic units of the high temperature ionomer to form a secondary network characterized by being a reversible network in that it is compromised by the heating of the low molecular weight non-polymeric compound to change out of its crystalline or glassy phase |
128 |
Radiopaque shape memory polymers for medical devices |
US13814691 |
2011-08-05 |
US09062141B2 |
2015-06-23 |
Stephen Dean Goodrich; Michael Lyons; Jeffrey Paul Castleberry |
Radiopaque polymer compositions and methods for making the compositions are provided. These radiopaque polymer compositions include shape memory polymer compositions comprising a crosslinked polymer network, the network comprising a first repeating unit derived from a monofunctional iodinated monomer and a second repeating unit derived from a multifunctional non-iodinated monomer wherein neither of the two monomers is fluorinated. Devices formed from radiopaque polymer compositions are also provided. |
129 |
Prevention, actuation and control of deployment of memory-shape polymer foam-based expandables |
US13740936 |
2013-01-14 |
US09051805B2 |
2015-06-09 |
Michael Johnson; Oleg A. Mazyar; Bennett M. Richard |
Actuation and control of the deployment of a polymeric memory-shape material on a wellbore device on a downhole tool may be accomplished by treating a compacted or compressed polymeric memory-shape material with an optional deployment fluid to lower its Tg and/or decrease its rigidity, thereby softening the polymeric shape-memory material at a given temperature and triggering its expansion or recovery at a lower temperature. Recovering the polymeric shape-memory material may occur by its being exposed to a particular temperature range. Alternatively, the deployment of the compacted or compressed polymeric memory-shape material may be prevented or inhibited by shielding the material with an environment of a fluid that does not substantially lower its Tg, decrease its rigidity or both, and then subsequently contacting the material with a deployment fluid. The deployment fluid may be removed during the method. |
130 |
METHOD AND SYSTEM FOR CREATING CO-LAYER SURFACE ADHESIVE RULE |
US14330823 |
2014-07-14 |
US20150105232A1 |
2015-04-16 |
Michael ZIMMER; David IDAN; Aviv RATZMAN; Konstantin SPIRYAGIN; Lior DAHAN |
A co-layer surface-adhesive rule (SAR) that has a pre-defined cross-section profile. The co-layer surface-adhesive rule (SAR) has two or more layers, wherein at least one layer is made from flexible material and wherein at least two layers differ one from the other. |
131 |
Multi-modal shape memory polymers |
US12595341 |
2008-04-18 |
US09000066B2 |
2015-04-07 |
Malcolm Brown; Horacio Montes De Oca Balderas; Michael Hall; John Rose |
The present disclosure relates to a multi-modal shape memory polymer material comprising a blend of at least one polymer component having a first molecular weight and at least a second polymer component having a second molecular weight that is less than the first component. |
132 |
THERMAL-RESPONSIVE POLYMER NETWORKS, COMPOSITIONS, AND METHODS AND APPLICATIONS RELATED THERETO |
US14058336 |
2013-10-21 |
US20140357806A1 |
2014-12-04 |
Jie Song; Jianwen Xu |
The invention relates to materials comprising polymer network containing siloxanes or organic-based core structures, preferably the materials have thermal-responsive properties. In some embodiments, the invention relates to an organic core functionalized with polymers. In another embodiment, organic core-polymer conjugates comprise polylactone segments. The organic core-polymer conjugates may be crosslinked together to form a material, and these materials may be functionalized with bioactive compounds so that the materials have desirable biocompatibility or bioactivity when used in medical devices. |
133 |
Polymer network with triple shape effect and associated programming method |
US13126781 |
2009-10-29 |
US08901253B2 |
2014-12-02 |
Marc Behl; Andreas Lendlein; Yakai Feng; Jorg Zotzmann |
The invention relates to a polymer network with triple-shape-memory effect and an associated programming method. The invention also relates to a method for producing layer systems made of shape-memory materials comprising the polymer network. The polymer network includes A) a first crystalline switching segment made of a star polymer; and B) a second crystalline switching segment made of a linear polymer or a star polymer. |
134 |
AQUEOUS EMULSION RESIN FOR PRODUCING MEMORY FOAM AND METHOD FOR MANUFACTURING MEMORY FOAM PRODUCT |
US13684413 |
2012-11-23 |
US20140145363A1 |
2014-05-29 |
Yu-Ting CHEN |
An aqueous emulsion resin for producing memory foam and a method for manufacturing memory foam products are revealed. The emulsion resin mainly includes 38˜58% hydrophilic polyurethane(PU) prepolymer, 8˜22% aqueous emulsion polymer and 8˜20% polyether polyol. The PU prepolymer includes 40˜70% polyether polyol and 30˜60% isocyanate while the molecular weight of polyether polyol is ranging from 60 to 1800. The polyether polyol contains at least 40 mol % amount of ether group and the amount of ether group is 18˜99.9%. The hydrophilic emulsion resin features on good vibration absorption, even pressure relief, moisture absorption, heat absorption, and low temperature resistance. While in contact with bodies, users feel cool and dry. Moreover, the resin will not become rigid at the temperature lower than 10° C. The comfort of the foam is improved and the applications of the foam are increased. |
135 |
Method and system for creating surface adhesive rule counter die |
US13108526 |
2011-05-16 |
US08708881B2 |
2014-04-29 |
Michael Zimmer; Aviv Ratzman; David Idan; Lior Dahan; Kostantin Spiryagin |
A Surface-adhesive-rule counter die that comprises a base associated to a flexible-counter film. Wherein the flexible-counter film may comprise one or more types of polymers and has resilience attribute. Wherein the SAR counter die acts as a counter die for pre-treating a plurality of cardboard. |
136 |
Polymers For Implantable Devices Exhibiting Shape-Memory Effects |
US13903773 |
2013-05-28 |
US20140010858A1 |
2014-01-09 |
John J. Stankus; O. Mikael Trollsas; Michael H. Ngo |
The present invention is directed to polymeric compositions comprising a biodegradable copolymer that possesses shape-memory properties and implantable devices (e.g., drug-delivery stents) formed of materials (e.g., a coating) containing such compositions. The polymeric compositions can also contain at least one non-fouling moiety, at least additional biocompatible polymer, at least one biobeneficial material, at least one bioactive agent, or a combination thereof. The polymeric compositions are formulated to possess good mechanical, physical and biological properties. Moreover, implantable devices formed of materials comprising such compositions can be delivered to the treatment site in a conveniently compressed size and then can expand to dimensions appropriate for their medical functions. |
137 |
Dual-Cure Polymer Systems |
US13820601 |
2011-11-04 |
US20130277890A1 |
2013-10-24 |
Christopher Bowman; Devatha Nair; Neil Cramer; Robin Shandas |
The present invention includes compositions that are useful to prepare dual-cure shape memory polymer systems. The present invention further provides methods of generating a shape memory polymer, optical device, polymer pad with an imprint, or suture anchor system. |
138 |
RADIOPAQUE SHAPE MEMORY POLYMERS FOR MEDICAL DEVICES |
US13814691 |
2011-08-05 |
US20130225778A1 |
2013-08-29 |
Stephen Dean Goodrich; Michael Lyons; Jeffrey Paul Castleberry |
Radiopaque polymer compositions and methods for making the compositions are provided. These radiopaque polymer compositions include shape memory polymer compositions comprising a crosslinked polymer network, the network comprising a first repeating unit derived from a monofunctional iodinated monomer and a second repeating unit derived from a multifunctional non-iodinated monomer wherein neither of the two monomers is fluorinated. Devices formed from radiopaque polymer compositions are also provided. |
139 |
REINFORCING ELEMENT FOR REFORCEMENT IN CAVITIES OF STRUCTURAL COMPONENTS |
US13627202 |
2012-09-26 |
US20130020832A1 |
2013-01-24 |
Jürgen FINTER; Matthias Gössi; Karsten Frick; Norman Blank |
A reinforcing element for reinforcement in cavities of structural components including a substrate made of a plastics material, which is at least partially coated with a metal; and a foamable, thermosetting structural adhesive which is applied to the metal coating of the substrate; or a thermosetting structural adhesive which is applied to the metal coating of the substrate and is designed as a shape memory material. |
140 |
Prevention, actuation and control of deployment of memory-shape polymer foam-based expandables |
US12763363 |
2010-04-20 |
US08353346B2 |
2013-01-15 |
Michael Johnson; Oleg A. Mazyar |
Actuation and control of the deployment of a polymeric memory-shape material on a wellbore device on a downhole tool may be accomplished by treating a compacted or compressed polymeric memory-shape material with a deployment fluid to lower its Tg and/or decrease its rigidity, thereby softening the polymeric shape-memory material at a given temperature and triggering its expansion or recovery at a lower temperature. Alternatively, the deployment of the compacted or compressed polymeric memory-shape material may be prevented or inhibited by shielding the material with an environment of a fluid that does not substantially lower its Tg, decrease its rigidity or both, and then subsequently contacting the material with a deployment fluid. |