Increasing the rate of crystallization of engineering thermoplastics
    4.
    发明授权
    Increasing the rate of crystallization of engineering thermoplastics 有权
    提高工程热塑性塑料的结晶率

    公开(公告)号:US07790841B1

    公开(公告)日:2010-09-07

    申请号:US12079089

    申请日:2008-02-06

    IPC分类号: C08F6/00 C08G64/00

    摘要: Method for enhancing the crystallization rates of engineering thermoplastics through the use and incorporation of particulate additives with dimensions on the order of 10-1000 nm is described. The presence of nanoparticles at concentrations of, e.g., less than 10 weight percent of the composition, reduces the viscosity of the thermoplastics as compared to the respective homopolymer, thereby increasing polymer chain transport and diffusion to the crystallizing growth front. The prescription of this technology has been shown to reduce crystallization half times of some engineering thermoplastics by as much as 40 percent at optimal crystallization temperatures, an effect that is magnified as the temperature is reduced towards the glassy state of the amorphous phase. Nano-modified engineering thermoplastics with rapid crystallization kinetics and relatively low viscosities can be utilized in component fabrication processes that require rapid processing times, e.g., for the sake of cost efficiency.

    摘要翻译: 描述了通过使用和结合尺寸在10-1000nm的颗粒添加剂来提高工程热塑性塑料的结晶速率的方法。 相对于各均聚物,存在的纳米颗粒的浓度例如低于组合物的10重量%,降低了热塑性塑料的粘度,从而增加了聚合物链的转运和扩散到结晶生长前沿。 已经表明,该技术的处方已经证明,在最佳结晶温度下,将一些工程热塑性塑料的结晶半结晶减少多达40%,随着温度朝着非晶相的玻璃状态而减小的效应被放大。 具有快速结晶动力学和相对低粘度的纳米改性工程热塑性塑料可用于需要快速加工时间的部件制造工艺中,例如为了成本效率。

    Tape placement head for applying thermoplastic tape to an object
    6.
    发明授权
    Tape placement head for applying thermoplastic tape to an object 有权
    用于将热塑性胶带应用于物体的胶带放置头

    公开(公告)号:US07404868B2

    公开(公告)日:2008-07-29

    申请号:US11548002

    申请日:2006-10-10

    IPC分类号: B32B37/00

    摘要: A tape placement head for applying thermoplastic tape to an object includes a heated feeder which guides the tape/tow to a heated zone. The heated zone has a line compactor having a single row of at least one movable heated member. An area compactor is located in the heated zone downstream from the line compactor. The area compactor includes a plurality of rows of movable feet which are extendable toward the tape/tow different distances with respect to each other to conform to the shape of the object. A shim is located between the heated compactors and the tape/tow. A chilled compactor is in a chilled zone downstream from the heated zone. The chilled zone includes a line chilled compactor and an area chilled compactor. A chilled shim is mounted between the chilled compactor and the tape/tow.

    摘要翻译: 用于将热塑性带施加到物体的带放置头包括将带/丝束引导到加热区的加热进料器。 加热区具有线压实机,其具有单排至少一个可移动加热构件。 区域压实机位于线压实机下游的加热区域中。 区域压实机包括多排可移动脚,其可相对于彼此延伸以朝向带/丝束不同的距离以符合物体的形状。 垫片位于加热的压实机和带/丝束之间。 冷冻压实机位于加热区下游的冷冻区域。 冷冻区包括一条线冷冻压实机和一个区域冷冻压实机。 冷却的垫片安装在冷冻压实机和胶带/丝束之间。

    Apparatus including a heated guide eye for winding a plurality of
lengths of thermoplastic resin impregnated yarns
    7.
    发明授权
    Apparatus including a heated guide eye for winding a plurality of lengths of thermoplastic resin impregnated yarns 失效
    包括用于卷绕多个长度的热塑性树脂浸渍纱线的加热引导眼的装置

    公开(公告)号:US5160568A

    公开(公告)日:1992-11-03

    申请号:US649354

    申请日:1991-02-01

    申请人: Mark B. Gruber

    发明人: Mark B. Gruber

    IPC分类号: B29C53/84

    CPC分类号: B29C53/845

    摘要: A consolidated structure with less than 6 percent void content is formed from a plurality of thermoplastic impregnated yarns traverse wound on a rotating mandrel by feeding the yarns under tension simultaneously from a source of supply to a traversing carriage as adjoining flat tapes. The tapes then move successively through a preheating section, a heated circular guide and a contact portion heating source, all on the carriage, before being laid down in a predetermined path on the mandrel.

    摘要翻译: 具有小于6%空隙含量的固结结构由多个热塑性浸渍纱线形成,所述多根热塑性浸渍纱线通过将纱线从供给源同时供给到作为邻接扁平带材的横向滑架的同时沿着旋转心轴缠绕。 然后,磁带在被放置在心轴上的预定路径中之前,依次通过预热部分,加热的圆形引导件和接触部分加热源。

    TAPE PLACEMENT HEAD FOR APPLYING THERMOPLASTIC TAPE TO AN OBJECT
    8.
    发明申请
    TAPE PLACEMENT HEAD FOR APPLYING THERMOPLASTIC TAPE TO AN OBJECT 有权
    用于将热塑胶带应用于对象的胶带放置头

    公开(公告)号:US20080083505A1

    公开(公告)日:2008-04-10

    申请号:US11548002

    申请日:2006-10-10

    IPC分类号: B32B37/00

    摘要: A tape placement head for applying thermoplastic tape to an object includes a heated feeder which guides the tape/tow to a heated zone. The heated zone has a line compactor having a single row of at least one movable heated member. An area compactor is located in the heated zone downstream from the line compactor. The area compactor includes a plurality of rows of movable feet which are extendable toward the tape/tow different distances with respect to each other to conform to the shape of the object. A shim is located between the heated compactors and the tape/tow. A chilled compactor is in a chilled zone downstream from the heated zone. The chilled zone includes a line chilled compactor and an area chilled compactor. A chilled shim is mounted between the chilled compactor and the tape/tow.

    摘要翻译: 用于将热塑性带施加到物体的带放置头包括将带/丝束引导到加热区的加热进料器。 加热区具有线压实机,其具有单排至少一个可移动加热构件。 区域压实机位于线压实机下游的加热区域中。 区域压实机包括多排可移动脚,其可相对于彼此延伸以朝向带/丝束不同的距离以符合物体的形状。 垫片位于加热的压实机和带/丝束之间。 冷冻压实机位于加热区下游的冷冻区域。 冷冻区包括一条线冷冻压实机和一个区域冷冻压实机。 冷却的垫片安装在冷冻压实机和胶带/丝束之间。

    Method for winding a plurality of lengths of thermoplastic resin
impregnated yarns using a heated guide eye
    9.
    发明授权
    Method for winding a plurality of lengths of thermoplastic resin impregnated yarns using a heated guide eye 失效
    使用加热引导眼卷绕多根长度的热塑性树脂浸渍纱线的方法

    公开(公告)号:US5160561A

    公开(公告)日:1992-11-03

    申请号:US649353

    申请日:1991-02-01

    申请人: Mark B. Gruber

    发明人: Mark B. Gruber

    IPC分类号: B29C53/84

    CPC分类号: B29C53/845

    摘要: A consolidated structure with less than 6 percent void content is formed from a plurality of thermoplastic impregnated yarns traverse wound on a rotating mandrel by feeding the yarns under tension simultaneously from a source of supply to a traversing carriage as adjoining flat tapes. The tapes then move successively through a preheating section, a heated circular guide and a contact point heating source, all on the carriage, before being laid down in a predetermined path on the mandrel.

    摘要翻译: 具有小于6%空隙含量的固结结构由多个热塑性浸渍纱线形成,所述多根热塑性浸渍纱线通过将纱线从供给源同时供给到作为邻接扁平带材的横向滑架的同时沿着旋转心轴缠绕。 然后,磁带在被放置在心轴上的预定路径中之前,依次通过预热部分,加热的圆形引导件和接触点加热源。