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公开(公告)号：US20230183534A1
公开(公告)日：2023-06-15
申请号：US17550631
申请日：2021-12-14
CPC分类号： C09K3/1006 , C08G83/007 , C08L63/00 , C08K3/36 , B33Y10/00 , B33Y70/00
摘要： This document relates to sealant compositions containing a sliding-ring polymer (polyrotaxane) additive and a polymeric matrix material. The sealant materials exhibit enhanced mechanical properties as compared to the same sealant composition that does not contain the additive. This document also relates to 3D-printed sealant compositions containing a sliding-ring polymer (polyrotaxane) additive and a polymeric matrix material.
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公开(公告)号：US20230183546A1
公开(公告)日：2023-06-15
申请号：US17551051
申请日：2021-12-14
CPC分类号： C09K8/467 , C04B22/0093 , C04B24/02 , C04B24/2647 , C04B28/02 , E21B33/14 , C04B2103/0079
摘要： Methods and systems for cementing a wellbore are described. The methods include forming a slurry including a cement-based matrix, water, a polymer-based additive, and a rheology modifying agent; mixing the slurry to form a printing ink; introducing the slurry and a printer into a wellbore; and forming a cement-based composite structure in the wellbore by printing a plurality of layers using the printing ink.
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公开(公告)号：US20230219138A1
公开(公告)日：2023-07-13
申请号：US17575177
申请日：2022-01-13
发明人： Seyed Mohammad Sajadi , Peter Boul , Chandra Sekhar Tiwary , Muhammad M. Rahman , Pulickel M. Ajayan , Carl Thaemltiz
IPC分类号： B22F10/18 , B22F12/58 , B22F12/55 , B22F12/53 , B22F1/103 , B33Y10/00 , B33Y40/10 , B33Y70/10
CPC分类号： B22F10/18 , B22F1/103 , B22F12/53 , B22F12/55 , B22F12/58 , B33Y10/00 , B33Y40/10 , B33Y70/10 , B22F2301/10 , B22F2301/35 , B22F2302/40 , B22F2998/00
摘要： Methods for fabricating a multi-material composite structure are described. Methods for fabricating a multi-material composite structure include forming a first colloidal ink solution with a first material matrix, water, and a rheology modifying agent; forming a second colloidal ink solution with a second material matrix, water, and a rheology modifying agent; printing a first layer on a substrate using a first printing nozzle carrying the first colloidal ink solution; printing a second layer on top of the first layer using a second printing nozzle carrying the second colloidal ink solution; forming a 3D structure by printing a plurality of layers including the first layer and the second layer printed in an alternating pattern; and sintering the 3D structure to form the multi-material composite structure.
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公开(公告)号：US11858039B2
公开(公告)日：2024-01-02
申请号：US17575177
申请日：2022-01-13
发明人： Seyed Mohammad Sajadi , Peter Boul , Chandra Sekhar Tiwary , Muhammad M. Rahman , Pulickel M. Ajayan , Carl Thaemltiz
IPC分类号： B22F10/18 , B22F12/58 , B22F12/55 , B22F12/53 , B22F1/103 , B33Y40/10 , B33Y70/10 , B33Y10/00
CPC分类号： B22F10/18 , B22F1/103 , B22F12/53 , B22F12/55 , B22F12/58 , B33Y10/00 , B33Y40/10 , B33Y70/10 , B22F2301/10 , B22F2301/35 , B22F2302/40 , B22F2998/00
摘要： Methods for fabricating a multi-material composite structure are described. Methods for fabricating a multi-material composite structure include forming a first colloidal ink solution with a first material matrix, water, and a rheology modifying agent; forming a second colloidal ink solution with a second material matrix, water, and a rheology modifying agent; printing a first layer on a substrate using a first printing nozzle carrying the first colloidal ink solution; printing a second layer on top of the first layer using a second printing nozzle carrying the second colloidal ink solution; forming a 3D structure by printing a plurality of layers including the first layer and the second layer printed in an alternating pattern; and sintering the 3D structure to form the multi-material composite structure.
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公开(公告)号：US20230183471A1
公开(公告)日：2023-06-15
申请号：US17550653
申请日：2021-12-14
CPC分类号： C08L63/00 , C08G83/007 , B33Y70/00 , B33Y10/00 , C08G2280/00
摘要： This document relates to shape memory compositions containing a sliding-ring polymer (polyrotaxane) additive and a thermally-curable epoxy resin. The shape memory compositions are able to deform and reform in response to external stimuli. This document also relates to 3D-printed shape memory compositions containing a sliding-ring polymer (polyrotaxane) additive and a thermally-curable epoxy resin.
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公开(公告)号：US20230183470A1
公开(公告)日：2023-06-15
申请号：US17550638
申请日：2021-12-14
IPC分类号： C08L63/00
CPC分类号： C08L63/00
摘要： This document relates to epoxy compositions containing a sliding-ring polymer (polyrotaxane) additive and a thermally-curable epoxy resin. The epoxy compositions exhibit increased flexural toughness and impact resistance as compared to the same epoxy composition that does not contain the additive. This document also relates to 3D-printed epoxy compositions containing a sliding-ring polymer (polyrotaxane) additive and a thermally-curable epoxy resin.
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公开(公告)号：US20200181014A1
公开(公告)日：2020-06-11
申请号：US16596396
申请日：2019-10-08
发明人： Muhammad M. Rahman , Seyed Mohammad Sajadi , Ashok Kumar , Peter J. Boul , Carl Thaemlitz , Pulickel M. Ajayan
摘要： Provide is a cement ink for a cement ink for 3D printing (which also includes additive manufacturing) of 3D cement structures and materials. The cement ink includes an American Petroleum Institute (API) Class G cement, a nano-clay, a superplasticizer, a hydroxyethyl cellulose, and a defoamer. The nano-clay may be hydrophilic bentonite. The superplasticizer may be a polycarboxylate ether. The defoamer may be 2-ethyl-1-hexanol. Processes for forming the cement ink and printing 3D cement structures using the cement ink are also provided.
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