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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Применить Всего найдено 13. Отображено 12.
07-01-2021 дата публикации

CORE-SHEATH FILAMENTS AND METHODS OF PRINTING AN ADHESIVE

Номер: US20210002793A1
Автор: Belkin Mikhail A., Chastek Thomas Q., DeVolder Ross J., Dingeldein Joseph C., Esch Jay A., Napierala Mark E., Nyaribo Eric O., Waid Robert D., West Shaun M., Young Jacob D.
Принадлежит:

The present disclosure provides a core-sheath filament. The core-sheath filament includes an adhesive core and a non-tacky sheath, wherein the sheath exhibits a melt flow index of less than 15 grams per 10 minutes. The present disclosure also provides a method of printing an adhesive. The method includes a) melting a core-sheath filament in a nozzle to form a molten composition, and b) dispensing the molten composition through the nozzle onto a substrate. Steps a) and b) are carried out one or more times to form a printed adhesive. The core-sheath filament includes an adhesive core and a non-tacky sheath. Further, methods are provided, including receiving, by a manufacturing device having one or more processors, a digital object comprising data specifying an article; and generating, with the manufacturing device by an additive manufacturing process using a core-sheath filament, the article including a printed adhesive based on the digital object. A system is also provided, including a display that displays a 3D model of an article; and one or more processors that, in response to the 3D model selected by a user, cause a 3D printer to create a physical object of an article including a printed adhesive, using a core-sheath filament. 1. A core-sheath filament comprising an adhesive core and a non-tacky sheath , wherein the sheath exhibits a melt flow index of less than 15 grams per 10 minutes (g/10 min).2. The core-sheath filament of claim 1 , wherein the core comprises a pressure sensitive adhesive.3. The core-sheath filament of claim 1 , wherein the core comprises a styrenic block copolymer and a tackifier.4. The core-sheath filament of claim 1 , wherein the core comprises a (meth)acrylic polymer.5. The core-sheath filament of claim 1 , wherein the core further comprises at least one additive selected from a filler claim 1 , a plasticizer claim 1 , an antioxidant claim 1 , a pigment claim 1 , a hindered amine light stabilizer claim 1 , an ultraviolet light absorber ...

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Номер записи: 1
01-04-2021 дата публикации

Impact-Resistant Stretch-Release Adhesives

Номер: US20210095165A1
Автор: Craton Michele A., DeVolder Ross J., Huang Rongzhi, Kuduva Raman Thanumoorthy Ramasubramani, Lin Sung-Tso
Принадлежит:

Stretch-release adhesives are provided which are derived from mixtures comprising: a) a tackified styrenic block copolymer comprising: i) one or more tackifiers; and ii) one or more styrenic block copolymers; wherein the weight ratio of i) to ii) is not more than 1.0:2.0; and b) one or more (meth)acrylate polymers. In some embodiments, the weight ratio of a) to b) is between 0.4:1.0 and 5.0:1.0 and in some between 1.0:1.0 and 3.9:1.0. In some embodiments, the one or more styrenic block copolymers comprise at least 90 wt % linear block copolymers. In some embodiments, the tackifiers are miscible with rubbery blocks of the styrenic block copolymers and not miscible with the (meth)acrylate polymers. In some embodiments, the mixture is crosslinked. Tapes comprising stretch-release adhesives according to the present disclosure are also provided. 1. A stretch-release adhesive derived from a mixture comprising: i) one or more tackifiers; and', 'ii) one or more styrenic block copolymers;', 'wherein the weight ratio of i) to ii) is not more than 1.0:2.0; and, 'a) a tackified styrenic block copolymer comprisingb) one or more (meth)acrylate polymers.2. The stretch-release adhesive according to wherein the weight ratio of i) to ii) is not more than 1.0:4.0 and at least 1.0:10.0.3. The stretch-release adhesive according to wherein the tackified styrenic block copolymer is not tacky.4. The stretch-release adhesive according to wherein the weight ratio of a) to b) is between 0.4:1.0 and 5.0:1.0.5. The stretch-release adhesive according to wherein the weight ratio of a) to b) is at least 1.0:1.0 and not more than 3.9:1.0.6. The stretch-release adhesive according to wherein the one or more styrenic block copolymers comprise less than 18 wt % styrenic content.7. The stretch-release adhesive according to wherein the one or more styrenic block copolymers comprise at least 90 wt % linear block copolymers.8. The stretch-release adhesive according to wherein the one or more styrenic block ...

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Номер записи: 2
18-06-2020 дата публикации

MULTILAYER PSA FOAM PARTICLES

Номер: US20200190368A1
Автор: DeVolder Ross J.
Принадлежит:

Unified multilayer articles comprising alternating layers including: a) at least two elastomeric foam interior layers, which are interior layers of the unified multilayer article, and which comprise: i) a first elastomeric material, and distributed therein: ii) expanded polymeric microspheres; where the elastomeric foam interior layers alternate with: b) at least two alternate layers directly bound to adjacent elastomeric foam interior layers; and wherein at least one of the alternate layers is an interior layer of the unified multilayer article. Adhesive films comprising the unified multilayer articles of the present disclosure are also provided, which additionally comprises at least one pressure sensitive adhesive attachment layer, which is an outermost PSA layer directly bound to a first face of the unified multilayer article and available for attachment of the adhesive film to an adherend. 2. The unified multilayer article of claim 1 , wherein the total number of alternating elastomeric foam interior layers and alternate layers is at least five.3. The unified multilayer article of claim 1 , wherein the total number of alternating elastomeric foam interior layers and alternate layers is at least eleven.4. The unified multilayer article of claim 1 , wherein alternate layers have an average thickness and elastomeric foam interior layers have an average thickness at least 2 times greater than the alternate layer average thickness.5. The unified multilayer article of claim 1 , wherein elastomeric foam interior layers have a thickness of not more than 100 microns.6. The unified multilayer article of claim 1 , wherein elastomeric foam interior layers have a thickness of not more than 30 microns.7. The unified multilayer article of wherein the expanded polymeric microspheres have an average diameter of not more than 22 microns.8. The unified multilayer article of wherein the alternate layer comprises polyurethane.9. The unified multilayer article of wherein the ...

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Номер записи: 3
26-09-2019 дата публикации

Acrylic rubber foam and double-sided adhesive tape comprising same

Номер: US20190292411A1
Автор: Andrew Satrijo, Do-Kwang Cho, Ross J. DEVOLDER, SeongWoo Kim, Yong Seok Seo, You Hoon Kim
Принадлежит: 3M Innovative Properties Co

The present invention relates to a double-sided adhesive tape used for applications including the attachment of front glass for mobile devices. A core layer of the double-sided adhesive tape is prepared by adding an acrylic elastomer free of carbon-carbon double bonds while being highly miscible with an acrylic resin to an acrylic monomer(s) and performing curing, and thus can improve the impact resistance of the final double-sided adhesive tape. Also, the core layer may take a form of foam due to the introduced filler such as glass bubbles or organic microspheres, and thus can further contribute to improving the impact resistance of the final double-sided adhesive tape.

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Номер записи: 4
18-10-2018 дата публикации

MULTILAYER PRESSURE SENSITIVE ADHESIVE FOAM TAPE FOR OUTDOOR APPLICATIONS

Номер: US20180298236A1
Автор: Bray Steven D., Chastek Thomas Q., Chen Zhong, DeVolder Ross J., Eckhardt Doreen, Förster Jan, Gadbois Gregory B., HEIMINK Jan, III Jack J., Kuester Frank, Radek Bettina, Sikora Regina, Torre Claudia, Unruh Jeremy D., Unverhau Kerstin, Waid Robert D., Wang Shujun J., Wieneke Jan, Willett Peggy S., Williams, Zoller Panu K.
Принадлежит:

The present disclosure relates to a method of adhering a first part to a second part, wherein the first part and the second part are used for outdoor applications and comprise a thermoplastic or a thermosetting organic polymer. The present disclosure is also directed to a composite assembly comprising: a) a first part and a second part used for outdoor applications and comprising a thermoplastic or a thermosetting organic polymer; and b) a multilayer pressure sensitive adhesive foam tape as described in the present disclosure, wherein the first pressure sensitive adhesive layer is adhered to the first part, and the second pressure sensitive adhesive layer is adhered to the second part. 2. A method according to claim 1 , wherein the first part and the second part are exposed to weathering conditions of wind claim 1 , rain claim 1 , and extreme temperatures.3. A method according to claim 1 , wherein the first part and the second part are exposed to headwind and/or tailwind.4. A method according to claim 1 , wherein the first part and the second part are used for exterior applications selected from the group of automotive claim 1 , construction claim 1 , traffic signage claim 1 , and graphic signage applications.5. A method according to claim 1 , wherein the first part and the second part are used for exterior applications claim 1 , and are independently selected from the group consisting of cladding claim 1 , exterior trims claim 1 , pillar trims claim 1 , emblems claim 1 , rear mirror assemblies claim 1 , spoilers claim 1 , front spoiler lips claim 1 , grip molding for trunk lids claim 1 , hood extensions claim 1 , wheel arches claim 1 , body side molding and inlays claim 1 , tail light assemblies claim 1 , sonar brackets claim 1 , license plate brackets claim 1 , fenders claim 1 , fender modules claim 1 , front grilles claim 1 , headlight cleaning brackets claim 1 , antennas claim 1 , roof ditch moldings claim 1 , roof railings claim 1 , sunroof frames claim 1 , ...

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Номер записи: 5
03-10-2019 дата публикации

THIN FOAM TAPES

Номер: US20190300755A1
Автор: DeVolder Ross J.
Принадлежит:

A thin foam layer is provided comprising: a) a polymeric matrix; and dispersed therein b) expanded polymeric microspheres comprising a polymeric shell and a hollow interior; wherein the thin foam layer has a thickness of less than 325 microns, in some embodiments less than 200 microns, or in some embodiments less than 110 microns, and the expanded polymeric microspheres have an average diameter of less than 100 microns, or in some embodiments less than 50 microns. In some embodiments the thin foam layer comprises greater than 0.7 wt % expanded polymeric microspheres, and in some greater than 1.0 wt %. The present disclosure additionally provides tapes comprising the thin foam layer of the present disclosure. 1. A tape comprising a thin foam layer comprising:a) a polymeric matrix; and dispersed thereinb) expanded polymeric microspheres comprising a polymeric shell and a hollow interior;wherein the polymeric shell comprises a material different from the polymeric matrix;wherein the thin foam layer has a thickness of less than 325 microns; andwherein the expanded polymeric microspheres have an average diameter of less than 100 microns,wherein a first face of said thin foam layer bears a first layer of adhesive.2. The tape according to wherein the thin foam layer has a thickness of less than 160 microns.3. The tape according to wherein the thin foam layer has a thickness of less than 110 microns.4. The tape according to wherein the expanded polymeric microspheres have an average diameter of less than 50 microns.5. The tape according to wherein the expanded polymeric microspheres have an average diameter of less than 30 microns.6. The tape according to wherein the expanded polymeric microspheres exhibit a multimodal distribution of average diameter.7. The tape according to wherein the thin foam layer comprises greater than 0.7 wt % expanded polymeric microspheres.8. The tape according to wherein the thin foam layer comprises greater than 1.0 wt % expanded polymeric ...

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Номер записи: 6
24-10-2019 дата публикации

ADHESIVE COMPOSITIONS AND ARTICLES

Номер: US20190322904A1
Автор: Chastek Thomas Q., DeVolder Ross J., Eckhardt Doreen, Waid Robert D., Wang Shujun J.
Принадлежит:

Pressure-sensitive adhesive compositions and articles that include a layer of the pressure-sensitive adhesive compositions are provided. The pressure-sensitive adhesive compositions are particularly well suited for use with substrates that have been considered to have difficult to bond to surfaces such as those routinely encountered in the automotive industry. For example, the pressure-sensitive adhesive can be adhered to clear coat compositions, painted surfaces, and various polymeric materials having low energy surfaces (e.g., surfaces having a surface energy no greater than 35 dynes per centimeter). 1. A pressure-sensitive adhesive composition comprising:a) a styrenic component comprising a first styrenic block copolymer having at least one rubbery block and at least two glassy blocks;b) a first tackifier that is a linear (meth)acrylic-based polymeric material having a glass transition temperature equal to at least 50° C. and having a weight average molecular weight in a range of 5,000 to 200,000 Daltons; andc) a second tackifier that is compatible with the rubbery block of the styrenic block copolymer, the second tackifier being an aliphatic hydrocarbon tackifier, a terpene resin, a terpene phenolic resin, or a mixture thereof.2. The pressure-sensitive adhesive of claim 1 , wherein the first styrenic block copolymer comprises 5 to 50 weight percent glassy blocks based on a total weight of the first styrenic copolymer.3. The pressure-sensitive adhesive of claim 1 , wherein the first styrenic copolymer is a linear triblock copolymer comprising 10 to 35 weight percent glassy blocks and 65 to 90 weight percent rubbery block.4. The pressure-sensitive adhesive composition of claim 1 , wherein the styrenic component further comprises a second styrenic copolymer that is a styrenic diblock copolymer having a single glassy block and a single rubbery block.5. The pressure-sensitive adhesive composition of claim 1 , wherein the styrenic diblock copolymer comprises 10 to 50 ...

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Номер записи: 7
23-10-2019 дата публикации

Adhesive compositions and articles

Номер: EP3555222A2
Автор: Doreen Eckhardt, Robert D. Waid, Ross J. DEVOLDER, Shujun J. WANG, Thomas Q. Chastek
Принадлежит: 3M Innovative Properties Co

Pressure-sensitive adhesive compositions and articles that include a layer of the pressure-sensitive adhesive compositions are provided. The pressure-sensitive adhesive compositions are particularly well suited for use with substrates that have been considered to have difficult to bond to surfaces such as those routinely encountered in the automotive industry. For example, the pressure-sensitive adhesive can be adhered to clear coat compositions, painted surfaces, and various polymeric materials having low energy surfaces (e.g., surfaces having a surface energy no greater than 35 dynes per centimeter).

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Номер записи: 8
29-08-2019 дата публикации

Core-sheath filaments and methods of printing an adhesive

Номер: WO2019164678A1
Автор: Eric O. Nyaribo, Jacob D. YOUNG, Jay A. Esch, Joseph C. DINGELDEIN, Mark E. Napierala, Mikhail A. Belkin, Robert D. Waid, Ross J. DEVOLDER, Shaun M. WEST, Thomas Q. Chastek
Принадлежит: 3M INNOVATIVE PROPERTIES COMPANY

The present disclosure provides a core-sheath filament. The core-sheath filament includes an adhesive core and a non-tacky sheath, wherein the sheath exhibits a melt flow index of less than 15 grams per 10 minutes. The present disclosure also provides a method of printing an adhesive. The method includes a) melting a core-sheath filament in a nozzle to form a molten composition, and b) dispensing the molten composition through the nozzle onto a substrate. Steps a) and b) are carried out one or more times to form a printed adhesive. The core-sheath filament includes an adhesive core and a non-tacky sheath. Further, methods are provided, including receiving, by a manufacturing device having one or more processors, a digital object comprising data specifying an article; and generating, with the manufacturing device by an additive manufacturing process using a core-sheath filament, the article including a printed adhesive based on the digital object. A system is also provided, including a display that displays a 3D model of an article; and one or more processors that, in response to the 3D model selected by a user, cause a 3D printer to create a physical object of an article including a printed adhesive, using a core-sheath filament.

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Номер записи: 9
05-03-2024 дата публикации

Adhesive compositions and articles

Номер: US11920067B2
Автор: Doreen Eckhardt, Robert D. Waid, Ross J. DEVOLDER, Shujun J. WANG, Thomas Q. Chastek
Принадлежит: 3M Innovative Properties Co

Pressure-sensitive adhesive compositions and articles that include a layer of the pressure-sensitive adhesive compositions are provided. The pressure-sensitive adhesive compositions are particularly well suited for use with substrates that have been considered to have difficult to bond to surfaces such as those routinely encountered in the automotive industry. For example, the pressure-sensitive adhesive can be adhered to clear coat compositions, painted surfaces, and various polymeric materials having low energy surfaces (e.g., surfaces having a surface energy no greater than 35 dynes per centimeter).

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Номер записи: 10
10-04-2019 дата публикации

Acrylic rubber foam and double-sided adhesive tape comprising same

Номер: EP3464498A1
Автор: Andrew Satrijo, Do-Kwang Cho, Ross J. DEVOLDER, SeongWoo Kim, Yong Seok Seo, You-Hoon Kim
Принадлежит: 3M Innovative Properties Co

The present invention relates to a double-sided adhesive tape used for applications including the attachment of front glass for mobile devices. A core layer of the double-sided adhesive tape is prepared by adding an acrylic elastomer free of carbon-carbon double bonds while being highly miscible with an acrylic resin to an acrylic monomer(s) and performing curing, and thus can improve the impact resistance of the final double-sided adhesive tape. Also, the core layer may take a form of foam due to the introduced filler such as glass bubbles or organic microspheres, and thus can further contribute to improving the impact resistance of the final double-sided adhesive tape.

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Номер записи: 11
01-10-2024 дата публикации

Core-sheath filaments and methods of printing an adhesive

Номер: US12104288B2
Автор: Eric O. Nyaribo, Jacob D. YOUNG, Jay A. Esch, Joseph C. DINGELDEIN, Mark E. Napierala, Mikhail A. Belkin, Robert D. Waid, Ross J. DEVOLDER, Shaun M. WEST, Thomas Q. Chastek
Принадлежит: 3M Innovative Properties Co

The present disclosure provides a core-sheath filament. The core-sheath filament includes an adhesive core and a non-tacky sheath, wherein the sheath exhibits a melt flow index of less than 15 grams per 10 minutes. The present disclosure also provides a method of printing an adhesive. The method includes a) melting a core-sheath filament in a nozzle to form a molten composition, and b) dispensing the molten composition through the nozzle onto a substrate. Steps a) and b) are carried out one or more times to form a printed adhesive. The core-sheath filament includes an adhesive core and a non-tacky sheath. Further, methods are provided, including receiving, by a manufacturing device having one or more processors, a digital object comprising data specifying an article; and generating, with the manufacturing device by an additive manufacturing process using a core-sheath filament, the article including a printed adhesive based on the digital object. A system is also provided, including a display that displays a 3D model of an article; and one or more processors that, in response to the 3D model selected by a user, cause a 3D printer to create a physical object of an article including a printed adhesive, using a core-sheath filament.

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Номер записи: 12