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公开(公告)号：US20210180216A1
公开(公告)日：2021-06-17
申请号：US17111638
申请日：2020-12-04
IPC分类号： D01F6/92 , D01D5/12 , D04H3/16 , D01D5/247 , D01F1/10 , B29C48/345 , B29C48/00 , B29C48/05 , B29C48/04 , B29C48/88
摘要： Fibers that are formed from a thermoplastic composition that contains a rigid renewable polyester and has a voided structure and low density are provided. To achieve such a structure, the renewable polyester is blended with a polymeric toughening additive in which the toughening additive can be dispersed as discrete physical domains within a continuous matrix of the renewable polyester. Fibers are thereafter formed and then stretched or drawn at a temperature below the glass transition temperature of the polyester (i.e., “cold drawn”).
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2.发明授权公开(公告)号：US10144825B2
公开(公告)日：2018-12-04
申请号：US14618267
申请日：2015-02-10
摘要： A thermoplastic composition that contains a rigid renewable polyester and a polymeric toughening additive is provided. The toughening additive can be dispersed as discrete physical domains within a continuous matrix of the renewable polyester. An increase in the deformation force and elongational strain causes debonding to occur in the renewable polyester matrix at those areas located adjacent to the discrete domains. This can result in the formation of a plurality of voids adjacent to the discrete domains that can help to dissipate energy under load and increase impact strength. To even further increase the ability of the composition to dissipate energy in this manner, an interphase modifier may be employed that reduces the degree of friction between the toughening additive and renewable polyester and thus enhances the degree and uniformity of debonding.
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公开(公告)号：US20160102185A1
公开(公告)日：2016-04-14
申请号：US14895108
申请日：2014-06-06
发明人： Vasily A. Topolkaraev , Ryan J. McEneany , Theodore T. Tower , David Glen Biggs , Neil T. Scholl , Thomas A. Eby , Antonio J. Carrillo
IPC分类号： C08J9/00
CPC分类号： C08J9/0061 , C08J3/203 , C08J5/18 , C08J2323/12 , C08J2367/04 , C08J2423/08 , C08J2423/16 , C08J2467/04 , C08L23/12 , C08L67/04 , C08L23/0884
摘要： A polymeric material having a multimodal pore size distribution is provided. The material is formed by applying a stress to a thermoplastic composition that contains first and second inclusion additives dispersed within a continuous phase that includes a matrix polymer. Through the use of particular types of inclusion additives and careful control over the manner in which such additives are dispersed within the polymer matrix, the present inventors have discovered that a unique, multimodal porous structure can be achieved.
摘要翻译： 提供具有多峰孔径分布的聚合物材料。 通过向包含分散在包括基质聚合物的连续相中的第一和第二夹杂物添加剂的热塑性组合物施加应力而形成材料。 通过使用特定类型的包合物添加剂，并仔细控制这些添加剂分散在聚合物基质中的方式，本发明人已经发现可以实现独特的多峰多孔结构。
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公开(公告)号：US10718069B2
公开(公告)日：2020-07-21
申请号：US14521511
申请日：2014-10-23
IPC分类号： D01F6/62 , B29C48/16 , D01D5/38 , D01F1/02 , D04H3/011 , D04H3/16 , C08L67/04 , D01F6/92 , C08G63/08 , B29K63/00 , B29K67/00 , B29K105/00
摘要： A method for forming biodegradable fibers is provided. The method includes blending polylactic acid with a polyepoxide modifier to form a thermoplastic composition, extruding the thermoplastic composition through a die, and thereafter passing the extruded composition through a die to form a fiber. Without intending to be limited by theory, it is believed that the polyepoxide modifier reacts with the polylactic acid and results in branching of its polymer backbone, thereby improving its melt strength and stability during fiber spinning without significantly reducing glass transition temperature. The reaction-induced branching can also increase molecular weight, which may lead to improved fiber ductility and the ability to better dissipate energy when subjected to an elongation force. Through selective control over this method, the present inventors have discovered that the resulting fibers may exhibit good mechanical properties, both during and after melt spinning.
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5.发明申请Renewable Polyester Film having a Low Modulus and High Tensile Elongation 审中-公开具有低模量和高拉伸伸长率的可再生聚酯薄膜公开(公告)号：US20150159012A1
公开(公告)日：2015-06-11
申请号：US14618344
申请日：2015-02-10
摘要： A film that is formed from a thermoplastic composition is provided. The thermoplastic composition contains a rigid renewable polyester and a polymeric toughening additive. The toughening additive can be dispersed as discrete physical domains within a continuous matrix of the renewable polyester. An increase in deformation force and elongational strain causes debonding to occur in the renewable polyester matrix at those areas located adjacent to the discrete domains. This can result in the formation of a plurality of voids adjacent to the discrete domains that can help to dissipate energy under load and increase tensile elongation. To even further increase the ability of the film to dissipate energy in this manner, the present inventors have discovered that an interphase modifier may be employed that reduces the degree of friction between the toughening additive and renewable polyester and thus reduces the stiffness (tensile modulus) of the film.
摘要翻译： 提供由热塑性组合物形成的膜。 热塑性组合物含有刚性可再生聚酯和聚合物增韧添加剂。 增韧添加剂可以作为可再生聚酯的连续基质中的离散物理区域分散。 变形力和伸长应变的增加导致可再生聚酯基体在与离散区域相邻的那些区域发生剥离。 这可能导致形成邻近离散区域的多个空隙，其可以帮助在负载下耗散能量并增加拉伸伸长率。 为了进一步提高膜以这种方式耗散能量的能力，本发明人已经发现，可以使用降低增韧添加剂和可再生聚酯之间的摩擦程度的相间改性剂，从而降低刚度（拉伸模量） 的电影。
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公开(公告)号：US10889696B2
公开(公告)日：2021-01-12
申请号：US14909758
申请日：2014-07-09
摘要： Microparticles that have a multimodal pore size distribution are provided, Notably, the pore structure of the present invention can be formed without the need for complex techniques and solvent chemistries traditionally employed to form porous microparticles. Instead, the microparticles contain a polymeric material that is formed from a thermoplastic composition, which is simply strained to a certain degree to achieve the desired porous network structure.
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公开(公告)号：US10815374B2
公开(公告)日：2020-10-27
申请号：US14618344
申请日：2015-02-10
IPC分类号： C08L67/04 , B32B27/12 , B32B27/36 , B32B27/32 , C08J5/18 , C08L33/06 , C08L37/00 , C08L23/08 , C08J9/00 , C08J9/28
摘要： A film that is formed from a thermoplastic composition is provided. The thermoplastic composition contains a rigid renewable polyester and a polymeric toughening additive. The toughening additive can be dispersed as discrete physical domains within a continuous matrix of the renewable polyester. An increase in deformation force and elongational strain causes debonding to occur in the renewable polyester matrix at those areas located adjacent to the discrete domains. This can result in the formation of a plurality of voids adjacent to the discrete domains that can help to dissipate energy under load and increase tensile elongation. To even further increase the ability of the film to dissipate energy in this manner, the present inventors have discovered that an interphase modifier may be employed that reduces the degree of friction between the toughening additive and renewable polyester and thus reduces the stiffness (tensile modulus) of the film.
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公开(公告)号：US09518181B2
公开(公告)日：2016-12-13
申请号：US14695109
申请日：2015-04-24
IPC分类号： C08L67/04 , C08L23/02 , C08L33/00 , C08L67/00 , C08L71/00 , C08L63/00 , C08L23/08 , C08L23/10
CPC分类号： C08L67/04 , C08L23/02 , C08L23/0815 , C08L23/10 , C08L33/00 , C08L63/00 , C08L67/00 , C08L71/00 , C08L2205/02 , C08L2205/03 , C08L2207/04 , C08L23/08 , C08L23/16
摘要： A thermoplastic composition that contains a rigid renewable polyester and has a voided structure and low density is provided. To achieve such a structure, the renewable polyester is blended with a polymeric toughening additive to form a precursor material in which the toughening additive can be dispersed as discrete physical domains within a continuous matrix of the renewable polyester. The precursor material is thereafter stretched or drawn at a temperature below the glass transition temperature of the polyester (i.e., “cold drawn”). This creates a network of voids located adjacent to the discrete domains, which as a result of their proximal location, can form a bridge between the boundaries of the voids and act as internal structural “hinges” that help stabilize the network and increase its ability to dissipate energy. The present inventors have also discovered that the voids can be distributed in a substantially homogeneous fashion throughout the composition.
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公开(公告)号：US11084916B2
公开(公告)日：2021-08-10
申请号：US14895108
申请日：2014-06-06
发明人： Vasily A. Topolkaraev , Ryan J. McEneany , Theodore T. Tower , David Glen Biggs , Neil T. Scholl , Thomas A. Eby , Antonio J. Carrillo
摘要： A polymeric material having a multimodal pore size distribution is provided. The material is formed by applying a stress to a thermoplastic composition that contains first and second inclusion additives dispersed within a continuous phase that includes a matrix polymer. Through the use of particular types of inclusion additives and careful control over the manner in which such additives are dispersed within the polymer matrix, the present inventors have discovered that a unique, multimodal porous structure can be achieved.
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公开(公告)号：US20190183690A1
公开(公告)日：2019-06-20
申请号：US16326280
申请日：2017-08-31
发明人： Davis Dang H. Nhan , Richard N. Dodge , Peiguang Zhou , WanDuk Lee , Thomas A. Eby , David G. Biggs
IPC分类号： A61F13/494 , A61L15/22
CPC分类号： A61F13/49413 , A61F13/49406 , A61F2013/1591 , A61F2013/4944 , A61L15/22 , A61L15/225 , A61L15/28 , A61L15/42 , C08L1/00
摘要： A leg gasket for a disposable absorbent article includes a laminate having a core structure with a first surface and a second surface, the core structure including an elastic core layer and a plastic core layer, wherein the elastic core layer is one of a film, a plurality of strands, and a plurality of strips, wherein the plastic core layer is one of a film layer, a plurality of strands, and a plurality of strips, and wherein at least one of the elastic and plastic core layers is a film; and a nonwoven first facing layer affixed to the first surface. Also, a disposable absorbent article includes a chassis including an absorbent structure and the leg gasket described above.
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