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公开(公告)号：US10323144B2
公开(公告)日：2019-06-18
申请号：US15420236
申请日：2017-01-31
申请人： The United States of America, as represented by the Secretary of Agriculture , LAPOL LLC , NATURAL SOLUTIONS
摘要： L-Polylactic acid and D-Polylactic acid biodegradable biopolymers are combined with torrefied biomass and a plasticizer to create a biodegradable cardstock composition. The biodegradable cardstock composition provides an alternative to conventional plastic cardstocks, which are manufactured using petroleum-based materials such polyvinyl chloride (PVC) or polystyrene (PS). The biodegradable cardstock described herein can be incorporated into a variety of end products such as key cards, driver licenses, security badges, calling cards, and other plastic cards, including those that have a magnetic strip containing stored data such as credit and debit cards.
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公开(公告)号：US10435557B2
公开(公告)日：2019-10-08
申请号：US15469204
申请日：2017-03-24
摘要： Stereocomplex biopolymer compositions having tunable and improved mechanical properties and methods of making such compositions are disclosed. The biopolymer compositions include combinations of a matrix-forming polylactic acid comprising an essentially pure enantiomer and a tough polyester to form a polylactic acid matrix. The polylactic acid matrix is further combined with a base polylactic acid comprising an essentially pure opposite enantiomer of the first essentially pure enantiomer of the matrix-forming polylactic acid to form the stereocomplex.
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公开(公告)号：US09139689B1
公开(公告)日：2015-09-22
申请号：US13725802
申请日：2012-12-21
CPC分类号： C08G63/60 , C08G63/12 , C08G63/52 , C08G63/66 , C08G63/676 , C08L3/02 , C08L23/02 , C08L23/04 , C08L23/06 , C08L23/10 , C08L67/00 , C08L67/04 , C08L91/005 , C08L23/00
摘要： A bioderived plasticizer for biopolymers includes a compatibilizing unit and a polyester plasticizing unit. The plasticizer improves the flexibility of biopolymers while not adversely affecting the modulus of the biopolymer. The compatibilizing unit renders the plasticizer more miscible with the desired base biopolymer, and may increase crystallization and includes a lower alkyl (C3 to C7) organic acid including enantiomeric isomers of the base polymer. The polyester plasticizing unit is formed from monomers comprising a multifunctional alcohol and an aliphatic anhydride or its equivalent dicarboxylic acid and ester derivatives. The polyester plasticizing unit may optionally include one or more difunctional alcohols in combination with the multifunctional alcohol. The resulting bioderived plasticizer lowers glass transition temperature (Tg), can improve brittleness, may increases heat deflection temperature and improves melt viscosity.
摘要翻译： 用于生物聚合物的生物活性增塑剂包括相容单元和聚酯增塑单元。 增塑剂提高生物聚合物的柔韧性，同时不会对生物聚合物的模量产生不利影响。 相容单元使增塑剂与所需的基础生物聚合物更易混溶，并且可以增加结晶，并且包括包含基础聚合物的对映体异构体的低级烷基（C 3至C 7）的有机酸。 聚酯增塑单元由包含多官能醇和脂族酸酐或其等同的二羧酸和酯衍生物的单体形成。 聚酯增塑单元可以任选地包括与多官能醇组合的一种或多种二官能醇。 所得到的生物活性增塑剂降低了玻璃化转变温度（Tg），可以改善脆性，增加热变形温度并提高熔体粘度。
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4.发明申请公开(公告)号：US20180273746A1
公开(公告)日：2018-09-27
申请号：US15469204
申请日：2017-03-24
CPC分类号： C08L67/04 , C08J3/005 , C08J2367/04 , C08J2467/02 , C08L2205/025 , C08L2205/03 , C08L67/02
摘要： Stereocomplex biopolymer compositions having tunable and improved mechanical properties and methods of making such compositions are disclosed. The biopolymer compositions include combinations of a matrix-forming polylactic acid comprising an essentially pure enantiomer and a tough polyester to form a polylactic acid matrix. The polylactic acid matrix is further combined with a base polylactic acid comprising an essentially pure opposite enantiomer of the first essentially pure enantiomer of the matrix-forming polylactic acid to form the stereocomplex.
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