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公开(公告)号：US20220118473A1
公开(公告)日：2022-04-21
申请号：US17432448
申请日：2020-02-25
摘要： Provided are dispensing devices and methods for a filament adhesive. The dispensing devices use a barrel including one or more heating elements, and a rotatable screw received in the barrel, the rotatable screw optionally including at least one mixing element. An inlet extends through a side of the barrel for receiving the filament adhesive, the inlet including a beveled nip point to prevent breakage of the filament adhesive as it is drawn into the barrel. An outlet at a distal end of the barrel for dispensing the filament adhesive in molten form. Using the provided dispensing devices, and optionally with the assistance of a computer, adhesives can be precisely applied to pre-determined locations on a substrate.
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公开(公告)号：US20210002793A1
公开(公告)日：2021-01-07
申请号：US16767330
申请日：2019-02-08
发明人： Eric O. NYARIBO , Thomas Q. CHASTEK , Robert D. WAID , Ross J. DeVOLDER , Jacob D. YOUNG , Shaun M. WEST , Mikhail A. BELKIN , Joseph C. DINGELDEIN , Jay A. ESCH , Mark E. NAPIERALA
摘要： 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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公开(公告)号：US20230357602A1
公开(公告)日：2023-11-09
申请号：US17425880
申请日：2020-02-25
发明人： Mark E. NAPIERALA , Thomas Q. CHASTEK , Robert D. WAID , Ross E. BEHLING , Shaun M. WEST , Jacob D. YOUNG
CPC分类号： C09J7/381 , C09J7/35 , C09J2301/312 , C09J2301/50 , C09J2301/302 , C09J2301/304 , C09J2423/006 , C09J2400/243 , C09J2301/414
摘要： Methods of bonding a pressure-sensitive adhesive to a substrate are provided. The methods include heating a styrenic block copolymer composition to provide an adhesive melt composition, wherein the styrenic block copolymer composition contains a hard segment block with a glass transition temperature of from 90° C. to 220° C.; masticating the adhesive melt composition; delivering the adhesive melt composition onto the substrate at a temperature that exceeds the glass transition temperature of the hard segment block by from 20° C. to 150° C.; and cooling the adhesive melt composition to obtain a bonded pressure-sensitive adhesive. Optionally, the substrate can be a non-film substrate, or the styrenic block copolymer composition can be provided in a core-sheath filament that includes a styrenic block copolymer core and a sheath that is non-tacky at ambient temperature.
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公开(公告)号：US20220134652A1
公开(公告)日：2022-05-05
申请号：US17432006
申请日：2020-02-25
IPC分类号： B29C64/209 , B29C64/314 , B29C64/321 , B29C64/295 , B29C64/118 , B33Y30/00 , B33Y40/10 , B33Y70/00
摘要： Provided are systems for dispensing a filament adhesive. The dispensing systems include a dispensing head with a barrel including one or more heating elements, and a rotatable screw received in the barrel, the rotatable screw including at least one mixing element. An inlet extends through a side of the barrel for receiving the filament adhesive. An outlet at a distal end of the barrel for dispensing the filament adhesive in molten form. The dispensing system further includes a filament adhesive having a configuration to be received into the inlet of the dispensing head. Using the provided dispensing systems, and optionally with the assistance of a computer, adhesives can be precisely applied to pre-determined locations on a substrate.
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