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    Process for profile extrusion of a polyester
    4.
    发明授权
    Process for profile extrusion of a polyester 失效
    聚酯型材挤出工艺

    公开(公告)号：US06632390B1

    公开(公告)日：2003-10-14

    申请号：US09560455

    申请日：2000-04-28

    申请人： Marcus David Shelby ,  Julian Harold Scott Jensen ,  Daniel Christopher Cobb ,  Marc Alan Strand

    发明人： Marcus David Shelby ,  Julian Harold Scott Jensen ,  Daniel Christopher Cobb ,  Marc Alan Strand

    IPC分类号： C08G6302

    CPC分类号： C08L67/00 ,  C08G63/20 ,  Y10T428/2978 ,  Y10T428/31786 ,  Y10T428/8305

    摘要： In a process for producing a profile by profile extrusion, a melt of a polyester composition is extruded through a die to form a profile. The processability of the polyester composition is improved by the addition of a branching agent, which provides increased melt strength and increased high shear thinning. The polyester composition has an inherent viscosity of at least 0.65 dl/g. The diacid component of the polyester composition has from 100 to 98.0 mole percent of residues of a primary acid selected from terephthalic acid, naphthalenedicarboxylic acid, isophthalic acid and mixtures thereof. The glycol component of the polyester composition has from 100 to 98.0 mole percent of residues of a primary glycol selected from ethylene glycol, 1,4-cyclohexanedimethanol, diethylene glycol, neopentyl glycol, and mixtures thereof. The polyester composition has from 0.05 to 2.0 mole percent of residues of the branching agent selected from an acidic branching agent with a tri-functional or greater monomer, an alcoholic branching agent with a tri-functional or greater monomer, and mixtures thereof. The branching agent is present as part of either the diacid component or glycol component depending on whether the functionality is acidic or alcoholic, respectively.

    摘要翻译： 在通过型材挤出生产型材的方法中，通过模具挤出聚酯组合物的熔体以形成轮廓。 聚酯组合物的加工性通过加入支化剂得到改善，其提供增加的熔体强度和增加的高剪切变稀。 聚酯组合物的特性粘度至少为0.65dl / g。 聚酯组合物的二酸组分具有100至98.0摩尔％的选自对苯二甲酸，萘二甲酸，间苯二甲酸的伯酸残基及其混合物。 聚酯组合物的二醇组分具有100至98.0摩尔％的选自乙二醇，1,4-环己烷二甲醇，二甘醇，新戊二醇及其混合物的伯二醇残基。 所述聚酯组合物具有0.05至2.0摩尔％的选自具有三官能以上单体的酸性支化剂的支链剂残基，具有三官能以上单体的醇支化剂及其混合物。 分支剂分别作为二酸组分或二醇组分的一部分存在，这取决于官能度是分别是酸性还是醇类。

    Process for making thermoplastic profiles having reduced melt fracture
    5.
    发明授权
    Process for making thermoplastic profiles having reduced melt fracture 有权
    制造具有减少熔体断裂的热塑性型材的方法

    公开(公告)号：US6100320A

    公开(公告)日：2000-08-08

    申请号：US275611

    申请日：1999-03-24

    申请人： Daniel Christopher Cobb ,  James Wilson Mercer, Jr.

    发明人： Daniel Christopher Cobb ,  James Wilson Mercer, Jr.

    IPC分类号： C08J3/22 ,  B29C47/00 ,  B29K67/00 ,  B29K105/16 ,  C08K5/098 ,  C08L67/02

    CPC分类号： C08K5/098

    摘要： In a process for producing a profile by profile extrusion of a thermoplastic resin, a melt of the thermoplastic resin is extruded through a die to form the profile. The process is improved by utilizing a thermoplastic resin having a composition of from about 99.95 to about 98.0 weight percent amorphous or semicrystalline polyester and from about 0.05 to about 2.0 weight percent of a zinc salt of an organic acid. The improvement of the process is either by increasing speed or decreasing temperature of a profile extrusion process already operating at a maximum speed and/or temperature with experiencing melt fracture. When melt fracture is present in the profile extrusion process, a method for reducing melt fracture in a profile is accomplished by combining from about 99.95 to about 98.0 weight percent amorphous or semicrystalline polyester and from about 0.05 to about 2.0 weight percent of a zinc salt of an organic acid to form a melt, extruding the melt through an orifice of a die at a temperature and a speed to form an extruded article having a shape, and thereafter quenching the extruded article to form a profile.

    摘要翻译： 在通过热塑性树脂的型材挤出生产型材的方法中，通过模头挤出热塑性树脂的熔体以形成轮廓。 通过使用具有约99.95至约98.0重量％的无定形或半结晶聚酯和约0.05至约2.0重量％的有机酸锌盐的组合物的热塑性树脂来改进该方法。 该方法的改进是通过在经历熔体断裂的情况下已经在最大速度和/或温度下运行的型材挤出方法的速度增加或降低温度。 当在型材挤出方法中存在熔体断裂时，通过将约99.95至约98.0重量％的无定形或半结晶聚酯和约0.05至约2.0重量％的锌盐的锌盐 有机酸以形成熔体，通过模具的孔口以温度和速度挤出熔体以形成具有形状的挤出制品，然后淬火挤压制品以形成轮廓。

    Process for profile extrusion of a polyester
    7.
    发明授权
    Process for profile extrusion of a polyester 有权
    聚酯型材挤出工艺

    公开(公告)号：US06808805B2

    公开(公告)日：2004-10-26

    申请号：US10459670

    申请日：2003-06-11

    申请人： Marcus David Shelby ,  Julian Harold Scott Jensen ,  Daniel Christopher Cobb ,  Marc Alan Strand

    发明人： Marcus David Shelby ,  Julian Harold Scott Jensen ,  Daniel Christopher Cobb ,  Marc Alan Strand

    IPC分类号： C08G6302

    CPC分类号： C08L67/00 ,  C08G63/20 ,  Y10T428/2978 ,  Y10T428/31786 ,  Y10T428/8305

    摘要： In a process for producing a profile by profile extrusion, a melt of a polyester composition is extruded through a die to form a profile. The processability of the polyester composition is improved by the addition of a branching agent, which provides increased melt strength and increased high shear thinning. The polyester composition has an inherent viscosity of at least 0.65 dl/g. The diacid component of the polyester composition has from 100 to 98.0 mole percent of residues of a primary acid selected from terephthalic acid, naphthalenedicarboxylic acid, isophthalic acid and mixtures thereof. The glycol component of the polyester composition has from 100 to 98.0 mole percent of residues of a primary glycol selected from ethylene glycol, 1,4-cyclohexanedimethanol, diethylene glycol, neopentyl glycol, and mixtures thereof. The polyester composition has from 0.05 to 2.0 mole percent of residues of the branching agent selected from an acidic branching agent with a tri-functional or greater monomer, an alcoholic branching agent with a tri-functional or greater monomer, and mixtures thereof. The branching agent is present as part of either the diacid component or glycol component depending on whether the functionality is acidic or alcoholic, respectively.

    摘要翻译： 在通过型材挤出生产型材的方法中，通过模具挤出聚酯组合物的熔体以形成轮廓。 聚酯组合物的加工性通过加入支化剂得到改善，其提供增加的熔体强度和增加的高剪切变稀。 聚酯组合物的特性粘度至少为0.65dl / g。 聚酯组合物的二酸组分具有100至98.0摩尔％的选自对苯二甲酸，萘二甲酸，间苯二甲酸的伯酸残基及其混合物。 聚酯组合物的二醇组分具有100至98.0摩尔％的选自乙二醇，1,4-环己烷二甲醇，二甘醇，新戊二醇及其混合物的伯二醇残基。 所述聚酯组合物具有0.05至2.0摩尔％的选自具有三官能以上单体的酸性支化剂的支链剂残基，具有三官能以上单体的醇支化剂及其混合物。 分支剂分别作为二酸成分或二醇成分的一部分存在，这取决于官能度是酸性还是醇。