СЛОЖНЫЕ ПОЛИЭФИРПОЛИОЛЫ, ИМЕЮЩИЕ ВТОРИЧНЫЕ СПИРТОВЫЕ ГРУППЫ, И ИХ ПРИМЕНЕНИЕ ПРИ ПОЛУЧЕНИИ ПОЛИУРЕТАНОВ, ТАКИХ КАК ГИБКИЕ ПЕНОПОЛИУРЕТАНЫ

Изобретение относится к сложным сополиэфирам, которые применяют для получения гибких пенополиуретанов. Сополиэфир - жидкость при 50°С - включает (а) сегмент инициатора, являющийся простым полиэфиром с молекулярной массой от 300 до 1500 и, по меньшей мере, две гидроксильные группы, и (b) в среднем на одну молекулу сложного сополиэфира, по меньшей мере, три сложноэфирных звена из гидроксилсодержащей жирной кислоты, содержащей 7 или более атомов углерода, или смеси двух или более упомянутых жирных кислот. Жирные кислоты содержат вторичный гидроксил, удаленный, по меньшей мере, на 5 атомов углерода от карбонильного атома углерода кислотной группы жирной кислоты, и первичный гидроксил с одной или несколькими гидроксиметильными группами. Сополиэфир содержит от 3,5 до 10 сложноэфирных звеньев на объединенное количество гидроксильных, первичных аминных и вторичных аминных групп соединения инициатора. Изобретение позволяет получить сложный полиэфир с повышенной функциональностью и пониженной чувствительностью ...

КОНЪЮГАТЫ ДЛЯ ДОСТАВКИ ПОЛИНУКЛЕОТИДОВ in vivo, СОДЕРЖАЩИЕ ЧУВСТВИТЕЛЬНЫЕ К ФЕРМЕНТАТИВНОМУ РАСЩЕПЛЕНИЮ СВЯЗИ

Изобретение относится к соединениям для обратимой модификации амфипатического мембраноактивного полиамина и полимеру для доставки полинуклеотида в клетку in vivo. Амфипатические мембраноактивные полиамины обратимо модифицированы поддающимися ферментативному отщеплению дипептидными амидобензилкарбонатными маскирующими агентами. Указанная модификация приводит к маскированию мембранной активности полимера, а обратимость обеспечивает чувствительность к физиологическим условиям. Обратимо модифицированные полиамины (динамичные поликонъюгаты, или КДП) также ковалентно связаны с полинуклеотидом РНКи или вводятся совместно с направленным конъюгатом полинуклеотид РНКи-нацеливающая молекула. 4 н. и 13 з.п. ф-лы, 15 табл., 4 ил., 16 пр.

УСКОРИТЕЛЬ ОТВЕРЖДЕНИЯ СМОЛ

Изобретения относятся к раствору ускорителя, подходящему для использования при получении окислительно-восстановительной системы совместно с пероксидами. Раствор ускорителя содержит соединение первого переходного металла, выбираемого из меди, соединение второго переходного металла, выбираемого из кобальта, азотсодержащее основание и гидроксифункциональный растворитель. При этом массовое соотношение «первый переходный металл : второй переходный металл» находится в диапазоне от 3:1 до 200:1. Раствор ускорителя не содержит аскорбиновой кислоты. Изобретение позволяет улучшить реакционную способность систем ускорителей. 3 н. и 8 з.п. ф-лы, 2 табл., 2 пр.

ГИДРИРОВАНИЕ ОЛИГОМЕРОВ СЛОЖНЫХ ПОЛИЭФИРОВ, СОДЕРЖАЩИХ ОСТАТКИ ТЕРЕФТАЛЕВОЙ КИСЛОТЫ И ИЗОФТАЛЕВОЙ КИСЛОТЫ

Изобретение относится к способам получения сложных полиэфиров. Предложен способ гидрирования олигомера сложного полиэфира, содержащего остатки терефталевой кислоты, где остатки терефталевой кислоты превращаются в остатки 1,4-циклогександикарбоновой кислоты. Также предложен способ получения сложных полиэфиров, содержащих остатки 1,4-циклогександикарбоновой кислоты, путем вначале гидрирования олигомера сложного полиэфира, содержащего остатки терефталевой кислоты, а затем взаимодействие полученного олигомера с одним или несколькими образующими сложный полиэфир реагентами с получением более высокомолекулярного сложного полиэфира. Другим вариантом является способ гидрирования олигомера сложного полиэфира, содержащего остатки изофталевой кислоты, где остатки изофталевой кислоты превращаются в остатки 1,3-циклогександикарбоновой кислоты. 6 н. и 7 з.п. ф-лы, 1 табл.

БИОДЕГРАДИРУЕМЫЕ ПОЛИМЕРЫ И СПОСОБЫ ИХ ПОЛУЧЕНИЯ

Данное изобретение относится к биодеградируемым полимерам и особенно к биодеградируемым полимерам, основанным на полиакриловой и полиаспарагиновой кислотах. Кроме того, данное изобретение относится к способам получения указанных биодеградируемых полимеров и их применения в качестве, например, защитного покрытия или упаковочного материала. Более конкретно, данное изобретение относится к способам получения биодеградируемых полимеров, включающим а) приготовление кислой смеси полиакриловой и/или полиаспарагиновой кислоты, ионов натрия, одного или более олигосахаридов или их производных и воды, где полученная смесь имеет рН 5 или меньше; b) поддержание температуры упомянутой кислой смеси в интервале от 80°С до 130°С до тех пор, пока не образуется гомогенная суспензия; и с) добавление поливинилового спирта (PVA) и одной или большего числа поликарбоновых кислот или их производных к смеси из этапа (b) при поддержании температуры в интервале от 80°С до 130°С до тех пор, пока не образуется биодеградируемый ...

ЦИКЛИЧЕСКОЕ КАРБОДИИМИДНОЕ СОЕДИНЕНИЕ

Изобретение относится к новому циклическому карбодиимидному соединению, представленному следующей формулой (i):(где X представляет собой любую из двухвалентных групп, представленных следующими формулами (i-1)-(i-3), или четырехвалентную группу, представленную следующей формулой (i-4), когда X является двухвалентным, q имеет значение 0, и когда X является четырехвалентным, q имеет значение 1, и Ar-Ar, каждый независимо, представляют собой ароматическую группу и могут быть замещены алкильной группой, содержащей от 1 до 6 атомов углерода, или фенильной группой)(i-1), где n представляет собой целое число, имеющее значение от 1 до 6,где m и n, каждый независимо, представляют собой целое число, имеющее значение от 0 до 3,где Rи R, каждый независимо, представляет собой алкильную группу, содержащую от 1 до 6 атомов углерода, или фенильную группу,которое является полезным в качестве агента замыкания конца цепи полимерных соединений, а именно агента захвата для кислотной группы. Также описываются ...

СМЕСИ НА ОСНОВЕ СЛОЖНОГО ПОЛИЭФИРА С УЛУЧШЕННОЙ СПОСОБНОСТЬЮ ПОГЛОЩЕНИЯ КИСЛОРОДА

Изобретение раскрывает поглощающие кислород композиции для контейнеров (варианты), один из вариантов указанной композиции дополнительно содержит диоксид титана, а также изобретение раскрывает преформу, пленку, лист, изготовленные из указанных композиций, двуосноориентированный контейнер, изготовленный из упомянутых преформ. Поглощающая кислород композиция для контейнеров (варианты) включает, по меньшей мере, один компонент на основе сложного полиэфира, который представляет собой сложный сополиэфир, включающий металлсульфонатную группу, катализатор на основе переходного металла, и растительное масло. Растительное масло содержит, по меньшей мере, одну молекулу, имеющую двойную аллильную структуру. Сложный сополиэфир, содержащий металлсульфонатную группу, включает, по меньшей мере, одно кислотное звено и, по меньшей мере, одно диольное звено. Концентрация двойных аллильных структур растительного масла в композиции составляет более 5,0 мг-экв/кг всех компонентов на основе сложного полиэфира ...

СВЯЗУЮЩИЕ ВЕЩЕСТВА С ВЫСОКИМ ГИДРОКСИЛЬНЫМ ЧИСЛОМ И СОДЕРЖАЩИЕ ИХ КОМПОЗИЦИИ ПРОЗРАЧНОГО ЛАКА С ХОРОШИМИ ОПТИЧЕСКИМИ СВОЙСТВАМИ И ХОРОШЕЙ СТОЙКОСТЬЮ К ЦАРАПАНЬЮ И К ДЕЙСТВИЮ ХИМИЧЕСКИХ РЕАГЕНТОВ

Настоящее изобретение относится к гидроксифункциональному связующему веществу с гидроксильным числом ≥180, определенным согласно DIN 53240, и параметром растворимости SP ≤10. Также настоящее изобретение относится к способам получения указанного выше связующего вещества, к композиции прозрачного лака, его включающей, и к субстрату, покрытому такой композицией прозрачного лака. Технический результат - получение связующих веществ для композиций прозрачного лака с высокой долей твердых веществ, которые приводят к образованию покрытий с высокой стойкостью к царапанью, химической стойкостью и хорошими оптическими свойствами. 5 н. и 13 з.п. ф-лы, 1 табл., 4 пр.

Волокнистый биодеградируемый материал с гидрофобно-гидрофильными свойствами

Изобретение относится к области биоразлагаемых и биосовместимых полимерных материалов, обладающих гидрофобно-гидрофильными свойствами, и может быть использовано в медицине и косметологии. Микроволокнистый биодеградируемый материал с гидрофобно-гидрофильными свойствами на основе микроволокнистого поли-3-гидроксибутирата (ПГБ), полученный взаимодействием ПГБ с 2-гидроксиэтилметакрилатом (ГЭМА) при массовом соотношении ПГБ : ГЭМА, равном 1:0.6-2.2, в присутствии ионно-координационного катализатора полимеризации VO(DMSO)5(ClO4)2при температуре 75-85°С, сохраняет способность волокон ПГБ к полному биоразложению и характеризуется сорбционной емкостью к водяному пару не менее 3%. Диаметр волокон материала не превышает 16 мкм. Материал обладает гидрофильностью, в несколько раз превышающей гидрофильность исходного ПГБ, и одновременно он сохраняет высокую способность к биоразложению. Способ получения материала отличается простотой и обеспечивает требуемые свойства. 2 з.п. ф-лы, 3 ил., 3 пр.

СПОСОБ ПОЛУЧЕНИЯ ПОЛИМЕРА

... 1. Способ получения полимера с применением коммерчески доступного конденсационного полиэфира в качестве исходного материала, включающий: ! выбор смеси, содержащей модифицирующий мономер, при этом указанная смесь, содержащая модифицирующий мономер, содержит по меньшей мере один мономер, причем указанный по меньшей мере один мономер представляет собой молекулу, содержащую гидроксильную или сложноэфирную группу, способен принимать участие в реакциях переэтерификации и имеет молекулярную массу менее чем 1500, и при этом смесь, содержащая модифицирующий мономер, не содержит компоненты, полученные из коммерчески доступного конденсационного полиэфира; и ! переэтерификацию смеси, содержащей модифицирующий мономер, с применением предварительно установленного количества коммерчески доступного конденсационного полиэфира с получением конечного полимера. ! 2. Способ по п.1, отличающийся тем, что коммерчески доступный конденсационный полиэфир представляет собой полиэтилентерефталат. ! 3. Способ по п.1 ...

БИОДЕГРАДИРУЕМЫЕ ПОЛИМЕРЫ И СПОСОБЫ ИХ ПОЛУЧЕНИЯ

... 1. Способ получения биодеградируемого полимера, включающий:a) приготовление кислой смеси полиакриловой и/или полиаспарагиновой кислоты, ионов натрия, одного или большего числа олигосахаридов или их производных и воды, где результирующая смесь имеет рН 5 или ниже,b) поддержание температуры упомянутой кислой смеси в интервале от 80°С до 130°С до тех пор, пока не образуется гомогенная суспензия; иc) добавление поливинилового спирта (PVA) и одного или большего числа поликарбоновых кислот или их производных к смеси из этапа (b) с поддержанием температуры в интервале от 80°С до 130°С до тех пор, пока не образуется биодеградируемый полимер.2. Способ по п.1, в котором кислая смесь на этапе а) включает в весовых процентах от полного веса биодеградируемого полимера:от 5% до 60% полиакриловой и/или полиаспарагиновой кислот; 3% или меньше ионов натрия; иот 2% до 30% одного или большего числа олигосахаридов или их производных.3. Способ по пп.1 или 2, в котором на этапе (d) добавляют в весовых процентах ...

Способ получения ненасыщенных смол на основе отходов полиэфирного шинного корда без введения стабилизатора

Настоящее изобретение относится к способу получения ненасыщенных полиэфирных смол, включающему алкоголиз (гликолиз) сырья, содержащего полиэтилентерефталат, бифункциональными соединениями с гидроксильными концевыми группами, поликонденсацию продукта с малеиновым ангидридом и разбавление стиролом, заключающемуся в том, что отходы полиэфирного шинного корда или смесь полиэтилентерефталата и резиновой крошки смешивают через расплав с катализатором и со сложными олигоэфирами с гидроксильными концевыми группами со степенью поликонденсации от 3 до 5 на основе бифункциональной карбоновой кислоты и гликоля, причем в качестве бифункциональной карбоновой кислоты используют терефталевую, изофталевую и/или фталевую кислоты, в качестве гликоля используют этиленгликоль, диэтиленгликоль, 1,2-пропиленгликоль и/или неопентилгликоль, и выдерживают при температуре 150-280 °С в течение 0,5-2,5 часов, полученную смесь охлаждают до температуры 150-200 °С, вводят малеиновый ангидрид и гликоль и выдерживают в ...

СПОСОБ ПРЯМОГО ИЗГОТОВЛЕНИЯ ИЗДЕЛИЙ ИЗ ПОЛИЭФИРА ДЛЯ ЦЕЛЕЙ УПАКОВКИ И ИЗДЕЛИЯ, ПОЛУЧЕННЫЕ ИМ

... 1. Способ прямого получения изделий из полиэфира для целей упаковки, в особенности полых тел, подвергаемых термоформовке листов и пленок, причем указанные изделия содержат ацетальдегид в количестве менее чем 10 ч/млн, по существу, включающий следующие стадии: ! a) создание расплава полимера на основе полиэтилентерефталата, который непосредственно получают превращением более чем 90 мас.% терефталевой кислоты или диметилтерефталата и этиленгликоля, причем указанный расплав полимера имеет характеристическую вязкость (ХВ0) на выходе из реактора поликонденсации в диапазоне от 0,5 до 0,90 дл/г, предпочтительно от 0,6 до 0,7 дл/г, ! b) добавление к указанному расплаву полимера смеси, по меньшей мере, одного инертного и, по меньшей мере, одного реакционноспособного веществ, которые реагируют с концевыми группами -СООН, и/или -ОН, и/или -СОО-СН=СН2 полиэфира, и/или со сложноэфирными связями полиэфирной цепи, для того, чтобы, по меньшей мере, вызвать частичный гидролиз, и/или ацидолиз, и/или алкоголиз ...

СПОСОБ ОБРАБОТКИ ПОЛИМЕРОВ, СОДЕРЖАЩИХ ОСТАТОЧНЫЙ КАТАЛИЗАТОР

... 1. Способ термической стабилизации полимера, содержащего остатки Sn(II), Sb(III), Pb(II), Bi(III), Fe(II), Ti(II), Ti(III), Mn(II), Mn(III) или Ge(II)-содержащего катализатора, путем обработки полимера при температуре выше его температуры плавления пероксидом, выбранным из группы, состоящей из пероксидов кетонов, органических гидропероксидов, перкислот, перекиси водорода и их смесей, при котором вышеуказанный пероксид используют в количестве меньшем, чем 0,2 мас.%, исходя из массы полимера, и при котором молярное отношение пероксидных функциональных групп вышеуказанного пероксида (р) к металлу (М) находится в интервале от 1 до 100; при этом вышеуказанный металл М выбран из группы, состоящей из Sn(II), Sb(III), Pb(II), Bi(III), Fe(II), Ti(II), Ti(III), Mn(II), Mn(III) и Ge(II). ! 2. Способ по п.1, где полимер получают с помощью полимеризации одного или нескольких мономеров, димеров и/или олигомеров, применяя Sn(II), Sb(III), Pb(II), Bi(III), Fe(II), Ti(II), Ti(III), Mn(II), Mn(III) или Ge ...

КИСЛОРОДОПОГЛОЩАЮЩИЕ КОМПОЗИЦИИ НА ОСНОВЕ СЛОЖНОГО ПОЛИЭФИРА ДЛЯ КОНТЕЙНЕРОВ

БАКТЕРИЦИДНЫЕ ПОЛИМЕРНЫЕ КОМПОЗИЦИИ И ИХ ИСПОЛЬЗОВАНИЕ

... 1. Бактерицидная композиция, содержащая ионный комплекс анионного полиэфира с бактерицидным металлом, причем анионный полиэфир обладает ионообменной емкостью от приблизительно 0,19 мг-экв/г до приблизительно 1,0 мг-экв/г.2. Бактерицидная композиция по п.1, в которой анионный полиэфир имеет среднюю молекулярную массу (Mw) от приблизительно 2 000 до приблизительно 7 200 дальтон.3. Бактерицидная композиция по п.1, содержащая от приблизительно 20 000 миллионных долей до приблизительно 96 000 миллионных долей вес. бактерицидного металла.4. Бактерицидная композиция по п.1, в которой анионный полиэфир получен путем полимеризации с раскрытием цикла мономеров алифатических лактонов в присутствии металлоорганического катализатора и инициатора анионной полимеризации.5. Бактерицидная композиция по п.4, в которой мономер алифатических лактонов выбран из группы, состоящей из гликолида, триметиленкарбоната, L-лактида, D-лактида, DL-лактида, мезолактида, ε-капролактона, п-диоксанона, 1,3-диоксан-2-она, ...

КЛЕЕВЫЕ КОМПОЗИЦИИ НА ОСНОВЕ РАСТВОРИТЕЛЯ

СПОСОБ ПОЛУЧЕНИЯ ОКИСЛИТЕЛЬНО-ОТВЕРЖДАЕМОГО СОСТАВА ПОКРЫТИЯ

РАДИАЦИОННО-ОТВЕРЖДАЕМЫЕ МОДИФИЦИРОВАННЫЕ, НЕНАСЫЩЕННЫЕ АМОРФНЫЕ СЛОЖНЫЕ ПОЛИЭФИРЫ

... 1. Радиационно-отверждаемый модифицированный, ненасыщенный, аморфный сложный полиэфир, содержащий A) по крайней мере, один ненасыщенный, аморфный сложный полиэфир, состоящий из, по крайней мере, одного α, (β-ненасыщенного компонента дикарбоновой кислоты и спиртового компонента, причем спиртовой компонент выбирают из дицидоловой смеси изомерных соединений 3,8-бис(гидроксиметил)трицикло[5.2.1.02,6]декан, 4,8-бис(гидроксиметил)трицикло[5.2.1.02,6]декан и 5,8-бис(гидроксиметил)трицикло[5.2.1.02,6]декан, содержание каждого изомера в смеси может составлять от 20 до 40% и сумма трех изомеров равна от 90 до 100%, и содержание данной смеси в спиртовом компоненте составляет, по крайней мере, до 5%; и B) по крайней мере, одно соединение, которое имеет, по крайней мере, одну этилен-ненасыщенную группировку с одновременно, по крайней мере, одной относительно А) реактивной группировкой, и превращают от 2 до 100 мас.% групп ОН компонента А) с компонентом В). 2. Радиационно-отверждаемый модифицированный ...

HYDROXYCHINOLINENDGRUPPENHALTIGE POLYKONDENSATE UND IHRE VERWENDUNG ZUR HERSTELLUNG METALLHALTIGER POLYMERER

Kettenverlängerte Polyester und Polyester-Blockcopolymere, präpolymerisierte Derivate davon sowie deren Verwendung

Die Erfindung betrifft einen kettenverlängerten Polyester, und insbesondere einen segmentierten Blockcopolyester, der durch Umsetzen eines mindestens difunktionellen Polymers, das endständige Hydroxygruppen aufweist, mit einem Dianhydrid erhältlich ist, wobei die Anhydridgruppen im Unterschuss zu den Hydroxygruppen vorliegen, wobei der Polyester wenigstens ein erstes Segment mit freien Carbonsäuregruppen aufweist, und wobei sich das erste Segment jeweils zwischen zwei weiteren Segmenten befindet, die von dem Polymer mit endständigen Hydroxygruppen abgeleitet sind. Durch Umsetzen der freien Carbonsäuregruppen des kettenverlängerten Polyesters mit einer Epoxidverbindung werden präpolymerisierte kettenverlängerte Polyester erhalten, die als Zähigkeitsmodifikatoren in Epoxidharzen verwendet werden können.

Polymeric materials

Gas hydrate inhibitor, method and use of hyperbranched polyester polyols as gas hydrate inhibitors

BRANCHED AROMATIC POLYESTERS

... 1384238 Cyanurate esters; polybenzoates CARBORUNDUM CO 6 Dec 1971 [8 Dec 1970] 56490/71 Heading C2C [Also in Division C3] A polyester has the formula in which each of R1, R2 and R3 consists of a plurality of moieties selected from in which a, b and c represent the total number of the respective moieties in each of R1, R2 and R3, and have the values, a from 0 to 40 and b and c each 0 to 20, subject to the conditions that the average value of a + b + c for R1, R2 and R3 is 2 to 40 and that when a is 0, b and c are each 1 to 20, when b is 0, a is 1 to 40 and c is 0 or 1 and when b and c are each 0, a is 2 to 40, n is 0 or 1 and when n is 1, m is 0 or 1, X represents -O-, represents a meta or para substituted benzene ring, and the oxy groups of the moieties of the Formulµ II and IV are bonded either to a carbonyl group of the moieties II and III or to a carbon atom of the cyanuryl nucleus and the carbonyl groups ...

Comminutable polyesters

Flexibilized epoxy resins

WATER DILUTABLE LACQUERS

Water dilutable laquers and their use for production of stoved coatings

A water-dilutable lacquer based on an alkyd or acrylate resin containing carboxyl groups, which have been neutralized with an amine containing at least one 2,3-dihydroxy propyl group per amine nitrogen. The lacquers according to the invention are particularly suitable for use in the production of baked coatings on thermostable substrates, metal sheets, or shaped metal parts.

Crystallized polyethylene terephthalate, which contains silicone, and process for its preparation

Crystallized polyethylene terephthalate, which contains silicone, and process for its preparation

HYDROXYFUNKTIONELLE BINDEMITTELKOMPONENTEN, VERFAHREN ZU DEREN HERSTELLUNG UND DEREN VERWENDUNG

CRYSTALLIZED SILIKONHALTIGES POLYETHYLENE TEREPHTHALATE AND MANUFACTURING PROCESS FOR IT

PROCEDURE FOR THE PRODUCTION OF A HIGH-MOLECULAR CONDENSATE

ORGANIC ANTI-REFLEX COATING COMPOSITIONS FOR THE ADVANCED MICROLITHOGRAPHY

CONJUGATED BIOLOGICAL MOLECULES AND YOUR PRODUCTION

BIOLOGICALLY DEGRADABLE ONE ALIPHATIC-AROMATIC POLYESTERS

PROCEDURE FOR THE PRODUCTION OF CARBONSÄUREFUNKTIONALISIERTEN POLYMERS

BIODEGRADABLE LOW-MOLECULAR ONES TRI BLOCK POLYESTER OF POLYETHYLENE GLYCOL COPOLYMERS WITH REVERSE THERMAL GELLING

PROCEDURE AND DEVICE OVER POLYTRIMETHYLENTEREPHTHALAT TO CRYSTALLIZATION

HYALURONSÄUREDERIVAT WITH A URETHANE CONNECTION

PROCEDURE FOR THE PRODUCTION OF 1 - BENZOTRIAZOLCARBONATESTERN OF WATER-SOLUBLE POLYMERS

FUNCTIONAL POLYESTERS FROM GLYCIDYLDERIVATEN AND CYCLI ANHYDRIDES OR CARBON DIOXIDE

PROCEDURE FOR THE TREATMENT OF POLYARYLATEN.

INTRODUCTION OF FUNCTIONAL GROUPS AT POLYMERS

NACHPOLYMERISIERUNGS INJECTION MOULDING PROCEDURE WITH THE PRODUCTION OF CONDENSATION POLYMERS

MONOMERS, OLIGOMERE AND POLYMERS WITH OXIRANENDGRUPPEN, PROCEDURES FOR YOUR PRODUCTION AND YOUR KATIONI RADIATION POLYMERIZATION

CRYSTALLIZED SILIKONHALTIGES POLYETHYLENE TEREPHTHALATE AND MANUFACTURING PROCESS FOR IT

CRYSTALLIZED SILIKONHALTIGES POLYETHYLENE TEREPHTHALATE AND MANUFACTURING PROCESS FOR IT

CRYSTALLIZED SILIKONHALTIGES POLYETHYLENE TEREPHTHALATE AND MANUFACTURING PROCESS FOR IT

CRYSTALLIZED SILIKONHALTIGES POLYETHYLENE TEREPHTHALATE AND MANUFACTURING PROCESS FOR IT

CRYSTALLIZED SILIKONHALTIGES POLYETHYLENE TEREPHTHALATE AND MANUFACTURING PROCESS FOR IT

CRYSTALLIZED SILIKONHALTIGES POLYETHYLENE TEREPHTHALATE AND MANUFACTURING PROCESS FOR IT

CRYSTALLIZED SILIKONHALTIGES POLYETHYLENE TEREPHTHALATE AND MANUFACTURING PROCESS FOR IT

CRYSTALLIZED SILIKONHALTIGES POLYETHYLENE TEREPHTHALATE AND MANUFACTURING PROCESS FOR IT

CRYSTALLIZED SILIKONHALTIGES POLYETHYLENE TEREPHTHALATE AND MANUFACTURING PROCESS FOR IT

CRYSTALLIZED SILIKONHALTIGES POLYETHYLENE TEREPHTHALATE AND MANUFACTURING PROCESS FOR IT

CRYSTALLIZED SILIKONHALTIGES POLYETHYLENE TEREPHTHALATE AND MANUFACTURING PROCESS FOR IT

CRYSTALLIZED SILIKONHALTIGES POLYETHYLENE TEREPHTHALATE AND MANUFACTURING PROCESS FOR IT

FORMULATION OF A RHEOLOGY MODIFIER AND A THERMOPLASTIC-EPOXY HYBRID LATEX

Abstract The present invention relates to a composition comprising a hydrophobically modified alkylene oxide polymer having a hydrophobic portion characterized by the following group: 'O RI where R' and x are as defined herein; and a) an aqueous dispersion of thermoplastic polymer particles imbibed with a thermosettable compound functionalized with structural units of an anti agglomerating monomer; and/or b) a curing agent. The composition of the present invention is useful for improving Brookfield viscosity and sag resistance in coatings arising from, for example, 2-component acrylic-epoxy hybrid systems cured with a curing agent.

MODIFIED POLYESTER RESIN COMPOSITION

Branched aliphatic-aromatic polyester blends

Compositions of PHAs with aromatic/aliphatic polyester are described and methods of making the same.

Conjugated biological molecules and their preparation

Crosslinked polyamide

Gas hydrate inhibitor, method and use of hyperbranched polyester polyols as gas hydrate inhibitors

The present invention relates to a non-toxic and biodegradable low dosage gas hydrate inhibitor comprising hyperbranched polyester polyols having hydroxyl end groups which are chemically modified. Further, the invention relates to a method for controlling gas hydrate formation and plugging of gas hydrate forming fluids and the use of the gas hydrate inhibitors for this purpose.

Introducing functional groups to a polymer

Acid functional and epoxy functional polyester resins

Method of grafting functional groups to synthetic polymers for making biodegradable plastics

POLYMER PRECURSOR DISPERSION CONTAINING A MICROPULP AND METHOD OF MAKING THE DISPERSION

POLYMER PRECURSOR DISPERSION CONTAINING A MICROPULP AND METHOD OF MAKING THE DISPERSION

This invention relates to a polymer precursor dispersion for use in making a polymer that is a solid at room temperature and further relates to a method of making same where the dispersion comprises a polymer precursor comprising an addition monomer, a condensation monomer, a prepolymer, or a polymer modifier and 0.01 to 50 weight percent of a micropulp having a volume average length of from 0.01 to 100 micrometers.

USE OF HYPERBRANCHED POLYESTERS IN COSMETIC AND DERMATOLOGICAL FORMULATIONS

The invention relates to compositions containing hyperbranched polyesters, to the use of said hyperbranched polyesters in cosmetics and dermatology and to substituted hyperbranched polyesters.

TERPOLYMERS CONTAINING ESTER AND AMIDE LINKAGES

ARTICLES HAVING IMPROVED GAS BARRIER PROPERTIES

The present invention relates to a sulfo-modified copolyester blend composition and polyglycolic acid. The blend of sulfo-modified copolyester a nd polyglycolic acid can be used to prepare containers with good transparency a nd high gas barrier properties. The preferred sulfo-modified copolyester composition comprises terephthalic acid, isophthalic acid and 5- sulfoisophthalic acid. A method of preparing a blend of sulfo-modified copolyester and polyglycolic acid is disclosed, as well as master batch processes. The present invention also relates to a method of making a container wherein the sulfo-modified copolyester is blended with the polyglycolic acid at an injection molding machine used to make preforms, whi ch are then blown into bottles.

PROCESS FOR CLASSIFYING AND COOLING POLYMER PELLETS TO BELOW THEIR TRANSITION GLASS TEMPERATURE

The present invention relates to a process for classifying and cooling polymer pellets to below their glass transition temperature which comprises: a) removing pellet fines, dust, and undersizes by passing the pellets through a screen; b) passing the pellets through a slice plate section where air is flowing through to cool the pellets; c) passing the pellets through a perforated plate that retains oversized pellets; and d) removing the pellets.

FUNCTIONAL PLA-PEG COPOLYMERS, THE NANOPARTICLES THEREOF, THEIR PREPARATION AND USE FOR TARGETED DRUG DELIVERY AND IMAGING

Functional PLA-PEG copolymers, the nanoparticles thereof, their preparation and use for targeted drug delivery and imaging The present invention concerns novel functional PEG-PLA containing copolymers, the nanoparticles containing the same, their process of preparation and their use for site specific targeted drug delivery and imaging.

CHEMICAL MODIFICATION OF LIGNIN AND LIGNIN DERIVATIVES

In one example implementation, a trans-esterified HPL can include a HPL and a polyester including polyester chains. The polyester may be an aliphatic polyester, a semi-aromatic polyester, or an aromatic polyester.

FLEXIBILIZED EPOXY RESINS

Epoxy resin systems having good flexibility and impact resistance are modified to provide improved resistance to solvents. Incorporation of a polyalkyleneoxide segment of a molecular weight less than 500 provides improved chemical resistance without sacrifice of mechanical properties. To achieve this an alkoxylated polyol with low molecular weight is reacted with a polycarboxylic acid anhydride to produce the half ester, which is then used to synthesize the flexibilized epoxy resin by forming adducts with polyglycidyl ethers. The flexibilized epoxy resins as well as the acid functionalized oligooxyalkylenes are claimed.

INTRODUCING FUNCTIONAL GROUPS TO A POLYMER

A polymer, possibly fabricated as part of a medical device or as part of a medical prostheses (such as a contact lens) is functionalised to facilitate the introduction of functional groups, such as biomedical species including heparin. The polymer is reacted in an aqueous medium with a water soluble azo compound (such as cyanovaleric acid or 2-methylpropionamidine) to produce oxygen centred radicals responsible for introducing functional groups into the polymer.

CARBAMATE FUNCTIONAL POLYMERS AND COMPOSITIONS CONTAINING SAME

A novel polyester is provided comprising the reaction product of: (1) an acid functional polyester which is prepared from: (a) a dihydroxycarboxylic acid of structure (I), wherein X is a lower alkyl group having from about 1 to about 4 carbon atoms, and R and R' are independently lower alkylene groups having from about 1 to about 4 carbon atoms; (b) a polyol different from (a); and (c) a polyacid; and (2) a monoepoxide containing from about 3 to 20 carbon atoms. The reaction product is carbamoylated. The carbamoylated polyester can be present in a film-forming composition also having a carbamate functional acrylic polymer and an aminoplast cross-linking agent. Also such a filmforming composition can be a clear coat in a multi-component composite coating composition.

Verfahren zur Herstellung von N-Halogenmethylacylamino-Verbindungen

Procédé pour la préparation de bis-cétènes

Verfahren zur Herstellung von stickstoffhaltigen Polykondensationsprodukten

Cured elastomers prodn - from ethylene-imine cpds by cationic polymn, for permanent elasticity and transparency

Cross-linked rubbery elastomers are produced by cationic polymsn. of high mol. ethylene-imine cpds. (I) in which the only gps. that can be alkylated have formula (II) (in which R' is H or alkyl) initiated by the action of alkylating agents acids or Lewis acids. (I) is a linear cpd. with ave. mol.wt. is not 1000 pref. 1000-25,000 esp. 3000-10,000 and ethylene-imine equiv. is not 500 pref. 1000-8000 and contains an ave. of >1 (is not >5) esp. 1.8-2.5 (II) gps./mol. Elastomers are transparent and permanently elastic and have numerous other valuable props. They are suitable for a wide range of applications e.g. elastic mouldings, sealants and coating for the electrical, building and automobile inds. in dentistry, in optical prods. in the form of reinforced plastics and foams and for making fibres.

Verfahren zur Herstellung von vernetzbaren Polymeren

Verfahren zur Herstellung von stickstoffhaltigen Polykondensationsprodukten

Verfahren zur Herstellung von lichtempfindlichen Filmen

Procédé pour la préparation d'un composé carbonylé

Verfahren zur Herstellung von vernetzbaren Polymeren

Verfahren zur Herstellung geformter Gebilde, die saure Gruppen im Polymermolekül aufweisende Mischpolyester der Terephthalsäure enthalten

Process for the preparation of a terpolymer containing ester and amide bonds between the monomer units

WATER-DILUTE-CASH LACQUERS AND YOUR USE FOR THE PRODUCTION OF BURNED COATS.

Crystallized polyethylene terephthalate, which silicon contains, and procedure for its production.

POLY (2 - HYDRO KSIALKANOVAYa ACID) AND METHOD OF ITS PRODUCTION

Modified poly(beta-amino ester)s for drug delivery

PROCESS FOR THE PREPARATION OF CYCLIC NITRILE SULFITE ADDUCTS

POLYAMINES OF RELATIVELY HIGH MOLECULAR WEIGHT

Process for increasing the molecular weight of polyesters

The present invention relates to a process for increasing the molecular weight of polyesters via heating, to from 160 to 350° C., in an extruder, of 100 parts of polyester with i) from 0.01 to 5 parts of a tetracarboxylic dianhydride and ii) from 0.01 to 5 parts of a copolymer which contains epoxy groups and which is based on styrene, acrylate, and/or methacrylate.

Cyclodextrin-based polymers for therapeutics delivery

The present invention relates to novel compositions of therapeutic cyclodextrin containing polymeric compounds designed as a carrier for small molecule therapeutics delivery and pharmaceutical compositions thereof. These cyclodextrin-containing polymers improve drug stability and solubility, and reduce toxicity of the small molecule therapeutic when used in vivo. Furthermore, by selecting from a variety of linker groups and targeting ligands the polymers present methods for controlled delivery of the therapeutic agents. The invention also relates to methods of treating subjects with the therapeutic compositions described herein. The invention further relates to methods for conducting pharmaceutical business comprising manufacturing, licensing, or distributing kits containing or relating to the polymeric compounds described herein.

Polymeric compositions comprising polylactic acid oligomers and methods of making the same

Process of modifying polylactic acid and compositions formed therefrom are described herein. The process generally includes providing a first polylactic acid, wherein the first polylactic acid includes a carboxylic acid end group and unsaturating the first polylactic acid to form a second polylactic acid.

Modified polylactic acid, polymeric blends and methods of making the same

Polymeric compositions and processes of forming the same are discussed herein. The processes generally include contacting a polylactic acid with a reactive modifier selected from epoxy-functionalized polybutadiene, ionic monomer, and combinations thereof.

Silane-functional polyesters in moisture-curing compositions based on silane-functional polymers

A silane-functional polyester of formula (I): wherein Y is an n-valent residue of a polyester P which is solid at room temperature and terminated by hydroxy groups, after removal of n hydroxy groups; R 1 is a linear or branched, monovalent carbon residue having 1 to 12 carbon atoms, optionally having one or more C—C multiple bonds and/or having optionally cycloaliphatic and/or aromatic portions; R 2 is an acyl residue or a linear or branched, monovalent hydrocarbon residue having 1 to 12 carbon atoms, optionally having one or more C—C multiple bonds and/or having optionally cycloaliphatic and/or aromatic portions; R 3 is a linear or branched, divalent hydrocarbon residue having 1 to 12 carbon atoms, optionally having cyclic and/or aromatic portions, and optionally having one or more heteroatoms; the index a has a value of 0, 1 or 2; and the index n has a value of 1 to 3.

Resin composition, molded body and composite molded body

In accordance with the present invention, by using a resin composition including lignin and a curing agent in which the lignin is soluble in an organic solvent and contained in the resin composition in an amount of from 10 to 90% by mass, there are provided a molded product and a composite molded product which are obtained from plant resources as a main raw material and to which a good flame retardance and a good antibacterial property are imparted.

Method for the preparation of (polybutylene-co-adipate terephthalate) through the in situ phosphorus containing titanium based catalyst

Biodegradable compositions containing an aliphatic-aromatic copolyester derived from aromatic polyesters. Methods of making the compositions through an in situ phosphorus containing titanium based catalyst and articles made from the compositions.

POLYESTERS, METHODS OF MAKING POLYESTERS AND USES THEREFOR

Polyester compositions and functionalized polyester compositions are provided along with methods of making the compositions as well as methods of using the compositions, for example as a tissue engineering bioscaffold and as a drug-delivery vehicle. 3. (canceled)4. (canceled)5. (Cancelled)6. The method of claim 2 , in which one or both of B and B′ are Calkyl groups claim 2 , aliphatic alkyl groups claim 2 , saturated alkyl groups claim 2 , saturated straight-chain alkyl groups claim 2 , selected from the group consisting of: —O(O)C—(CH)—C(O)O— claim 2 , —CH═CH— claim 2 , —CH—CH— claim 2 , phenyl claim 2 , —O —CH—CH—O— claim 2 , —O—CH═CH—O— claim 2 , —O(O)C—CH═CH—C(O)O— claim 2 , —O(O)C-phenyl-C(O)O— claim 2 , —O(O)C-cyclohexy-C(O)O— claim 2 , and —CH(OH)—CH(OH)— claim 2 , —O(O)C—C(NHY)—CH—C(O)O— where Y is a protective group claim 2 , and —O(O)C—C(NHY)—CH—CH—C(O)O where Y is a protective group.7. (canceled)8. (canceled)9. (canceled)10. (canceled)11. The method of claim 2 , in which A and A′ are epoxy groups or oxetane groups.12. (canceled)13. The method of claim 2 , comprising reacting diglycidyl sebacate with sebacic acid (HOC(O)—(CH)—C(O)OH).14. The method of claim 1 , in which the polymerization is conducted in the presence of one or more nucleophilic functional groups.15. The method of claim 1 , in which the polymerization is conducted in the presence of one or more of bis(tetrabutylammonium) sebacate claim 1 , tetrabutylammonium bromide claim 1 , tetrabutylammonium fluoride claim 1 , tetrabutylammonium iodide claim 1 , tetraphenylphosphonium chloride claim 1 , tetramethylphosphonium iodide claim 1 , sodium methoxide claim 1 , lithium acetate claim 1 , and sodium sulfide.16. The method of claim 2 , in which the compound A-B-A′ is prepared by direct esterification of glycidol with a compound XOC(O)—(CH)—C(O)OX′ in which X and X′ are independently halide.17. The method of claim 16 , in which the esterification is carried out in the presence of triethylamine at ...

COATING COMPOSITIONS CONTAINING CYCLOBUTANEDIOL

This invention is related to coating compositions comprising a polyester which further comprises 2,2,4,4-tetramethyl-1,3-cyclobutanediol residues, 1,4-cyclohexanedimethanol residues, and residues of a modifying glycol other than ethylene glycol, chosen from at least one of diethylene glycol, triethylene glycol, propylene glycol, neopentyl glycol, and 1,6-hexanediol; and 50 to 100 mole % of residues of at least one of phthalic anhydride, isophthalic acid, and terephthalic acid. 2. The coating of claim 1 , wherein the inherent viscosity of said polyester is from 0.10 to 1.0 dL/g.3. The coating of claim 1 , wherein the inherent viscosity of said polyester is from 0.20 to 0.68 dL/g.4. The coating of claim 1 , wherein the weight average molecular weight of the polyester is from 1500 to 25 claim 1 ,000 daltons.5. The coating of claim 1 , wherein the dicarboxylic acid component comprises 50 to 100 mole % of terephthalic acid residues.6. The coating of claim 1 , wherein the dicarboxylic acid component comprises 70 to 100 mole % of terephthalic acid residues.7. The coating of or claim 1 , wherein the dicarboxylic acid component comprises isophthalic acid residues.8. The coating of claim 1 , wherein said 2 claim 1 ,2 claim 1 ,4 claim 1 ,4-tetramethyl-1 claim 1 ,3-cyclobutanediol residues is a mixture comprising from 40 to 60 mole % of cis-2 claim 1 ,2 claim 1 ,4 claim 1 ,4-tetramethyl-1 claim 1 ,3-cyclobutanediol residues and from 40 to 60 mole % of trans-2 claim 1 ,2 claim 1 ,4 claim 1 ,4-tetramethyl-1 claim 1 ,3-cyclobutanediol residues.9. The coating of claim 1 , wherein said polyester comprises residues of at least one branching agent for the polyester.10. The coating of claim 1 , wherein said polyester comprises residues of at least one branching agent in an amount of 0.01 to 5 weight % based on the total mole percentage of the acid or glycol residues.11. The coating of claim 1 , wherein said polyester comprises residues of at least one branching agent chosen from ...

Dispersant composition

The present invention relates to a composition containing a particulate solid, a non-polar organic medium, and a compound obtained/obtainable by reacting an aromatic amine with hydrocarbyl-substituted acylating agent, wherein the hydrocarbyl-substituted acylating agent is selected from the group consisting of an oligomer or polymer from condensation polymerisation of a hydroxy-substituted C 10-30 carboxylic acid into a polyester, an optionally hydroxy-substituted C 10-30 carboxylic acid, a C 10-30 -hydrocarbyl substituted acylating agent, and a polyolefin-substituted maleic anhydride. The invention further provides compositions for inks, thermoplastics, plasticisers, plastisols, crude grinding and flush.

NANOPARTICLES FOR DELIVERY OF BIOACTIVE AGENTS

Biocompatible polymeric nanoparticles for delivery of bioactive agents, and methods for preparing the particles, are described. Polyoxalate nanoparticles of the subject technology show desired particle sizes suitable for use in drug delivery and a substantially uniform or narrow particle size distribution. The polyoxalate nanoparticles can contain water-soluble, poorly water-soluble, or water-insoluble drugs. The nanoparticles are nontoxic and are generally safe for use in humans. After being administered into the body, the nanoparticles with a high content of a bioactive agent entrapped therein can safely deliver the agent to target sites and stably release the drug at a controlled rate. 1. Polyoxalate nanoparticles having diameters ranging from about 50 to about 300 nm.2. A method for preparing biocompatible nanoparticles of polyoxalate polymers , comprising:(a) mixing 1,4-cyclohexanedimethanol (CDE) with oxalyl chloride (OC) in the presence of dichloromethane (DCM), and triethylamine to produce polyoxalate polymer; and(b) adding the polyoxalate polymer to a solution of polyvinylalcohol (PVA) in the presence of a suitable solvent to produce a substantially homogenous emulsion of polyoxalate nanoparticles.3. The method of claim 2 , wherein the produced polyoxalate nanoparticles have diameters ranging from about 50 to about 300 nm.4. The method of claim 2 , further comprising at least one of drying the nanoparticles or dispersing the nanoparticles in an aqueous solution.5. The method of claim 2 , wherein the suitable solvent comprises at least one of water claim 2 , dichloromethane claim 2 , acetonitrile claim 2 , chloroform claim 2 , dimethylformamide claim 2 , tetrahydrofuran claim 2 , ethanol claim 2 , ethyl acetate claim 2 , or acetone.6. A method claim 2 , for preparing polyoxalate nanoparticles for delivery of a drug claim 2 , comprising:(a) mixing 1,4-cyclohexanedimethanol (CDE) with oxalyl chloride (OC) in the presence of dichloromethane (DCM), and ...

CONTROLLED HYDROLYSIS OF POLY-4-HYDROXYBUTYRATE AND COPOLYMERS

Methods for making P4HB polymers and copolymers thereof that are useful for preparing controlled release systems, medical devices and as intermediates in chemical synthesis, have been developed. These methods avoid the use of organic solvents, and basic conditions that can cause transesterification reactions with polymer terminal end groups or elimination reactions. A preferred embodiment is a method for producing polymers of P4HB with weight average molecular weight less than 250,000, and more preferably, less than 100,000, and a Pd of less than 3, which are useful in controlled release. A particularly preferred embodiment utilizes aqueous acetic acid to hydrolyze pellets of P4HB polymers and copolymers while in suspension. 1. A poly-4-hydroxybutyrate polymer or copolymer thereof , wherein the polymer or copolymer is derived by acidic hydrolysis of a higher molecular weight poly-4-hydroxybutyrate polymer or copolymer , and wherein the polymer or copolymer has a weight average molecular weight between 1 ,000 and 250 ,000 Da.2. The polymer or copolymer of wherein the polymer or copolymer is suspended as pellets or particles in an aqueous acidic solution for a period of time and at a temperature to hydrolyse the polymer.3. The polymer or copolymer of wherein the higher molecular weight poly-4-hydroxybutyrate polymer or copolymer are in pellet form during hydrolysis.4. The polymer or copolymer of wherein aqueous acetic acid is used for the acidic hydrolysis of the polymer or copolymer.5. The polymer of copolymer of wherein the polydispersity after acidic hydrolysis is between 3 and 1.6. A medical device comprising the polymer or copolymer of any of .7. The device of selected from the group consisting of a suture claim 6 , stent claim 6 , stent graft claim 6 , stent coating claim 6 , drug delivery device claim 6 , device for temporary wound or tissue support claim 6 , device for soft or hard tissue repair claim 6 , repair patch claim 6 , tissue engineering scaffold ...

BIOCOMPATIBLE POLYMERS FOR MEDICAL DEVICES

The present invention relates to new classes of monomeric compounds, which may be polymerized to form novel biodegradable and bioresorble polymers and co-polymers. These polymers and co-polymers, while not limited thereto, may be adapted for radio-opacity and are useful for medical device applications and controlled release therapeutic formulations. 180.-. (canceled)82. The polymer of claim 81 , wherein said capped macromer structure is a macromer dicarboxylate.83. The polymer of wherein each X claim 81 , X claim 81 , X claim 81 , X claim 81 , X claim 81 , and Xis an O atom.84. The polymer of wherein each of Arand Aris independently phenylene substituted with at least one halogen atom.87. The polymer of wherein D is a heteroalkyl group having two carbonyl groups with an alkylene group spaced between the two carbonyl groups having up to 16 carbon atoms.88. The polymer of wherein the alkylene group spaced between the two carbonyl groups is comprised of two or four carbon atoms. This application claims priority under 35 U.S.C. §119(e) to U.S. Provisional Patent Application Ser. Nos. 61/104,724 and 61/104,728, both of which were filed Oct. 11, 2008, and both of which are hereby incorporated by reference in their entirety for all purposes.This application is also related to U.S. patent application Ser. No. 12/______ and U.S. Provisional Patent Application Ser. Nos. 61/250,548 and 61/250,______, all of which were filed on the same date of the present application. The disclosures of all three applications are hereby incorporated by reference in their entirety for all purposes.The present invention relates to new classes of monomeric compounds, which may be polymerized to form novel biodegradable and bioresorble polymers and co-polymers. These polymers and co-polymers, while not limited thereto, may be adapted for radio-opacity and are useful for medical device applications and controlled release therapeutic formulations.The present invention thus also relates to new ...

POLYETHER BLOCK COPOLYMERS AND COMPOSITIONS THAT CAN BE OBTAINED THEREFROM

Polyether block copolymers of the general structure B-(A-OH)are described, where n is greater than or equal to 2 and blocks A are made up of polyoxypropylene units and the central block B of polyoxytetramethylene, polyoxyethylene, polybutadiene, polyisoprene, polyacrylate, polymethacrylate, polyamide, polyurethane, or polyester units. These polyether block copolymers are suitable for the manufacture of compositions that serve as the basis for preparations for use as a one-component moisture-hardening or two-component adhesive or sealant, for assembly bonding, for areal bonding, and/or for coating, as a reactive melt adhesive or as a laminating adhesive. 1. A polyether block copolymer of the general structure B-(A-OH) , where n is greater than or equal to 2 and blocks A are made up of polyoxypropylene units and the central block B of polyoxytetramethylene , polyoxyethylene , polybutadiene , polyisoprene , polyacrylate , polymethacrylate , polyamide , polyurethane , or polyester units.2. The polyether block copolymer according to claim 1 , wherein the polyoxypropylene units A and the central block B each have a polydispersity PD (M/M) of less than 2.5 claim 1 , by preference from 1.00 to 2.00 claim 1 , particularly preferably from 1.10 to 1.50.3. The polyether block copolymer according to claim 1 , wherein the polyether block copolymer has a molecular weight of between 4 claim 1 ,000 and 40 claim 1 ,000 g/mol (dalton).4. The polyether block copolymer according to claim 1 , wherein the central block B has been propoxylated by DMC catalysis claim 1 , catalysis by means of one or more phosphacene and/or porphyrin derivative(s) claim 1 , or alkali metal catalysis claim 1 , in particular Cs catalysis claim 1 , preferably by DMC catalysis.5. A composition obtained by reacting at least one polyether block copolymer according to and at least one component containing at least one polymer sequence that claim 1 , in material terms claim 1 , matches structure A or B of the ...

AZIRIDINYL-CONTAINING COMPOUNDS

Compounds are described that have both an aziridinyl group as well as a polymeric group. Methods of making these compounds are also described. The aziridinyl group of the compound can be reacted with an acidic group on a second compound resulting in the opening of the aziridinyl ring and the attachment of the polymeric group to the second compound. 2. The compound of claim 1 , wherein the group Q has a weight average molecular weight equal to at least 5000 grams/mole.3. The compound of claim 1 , wherein the compound has a glass transition temperature equal to at least 20° C.4. The compound of claim 1 , wherein the monomer composition comprises a vinyl aryl monomer claim 1 , vinyl heterocyclic monomer claim 1 , or a combination thereof.5. The compound of claim 1 , wherein the monomer composition comprises a (meth)acrylate ester claim 1 , (meth)acrylamide claim 1 , or a combination thereof.6. The compound of claim 1 , wherein the group Q is a homopolymer.7. The compound of claim 1 , wherein group Q is a random copolymer.8. The compound of claim 1 , wherein the group Q is block copolymer. Compounds are described that have an aziridinyl group as well as a polymeric group.Bis-aziridine compounds have been used as crosslinking agents in various polymerization reactions. Such compounds are described, for example, in U.S. Pat. No. 6,893,718 (Melancon et al.), German Patent No. 836,353, in an article of Bestian (566, 210-244 (1950)), in an article of Babenkova (40, 1715-1719 (1967)), and in an article of Kadorkina et al. (40, 780-783 (1991)).Carboxyl-terminated polymers have been prepared. These are described, for example, in an article of Baumert et al. (18, 787-794 (1997)).Some aziridyl-terminated polymers have been prepared as described, for example, in an article of Kobayashi et al. (43, 4126-4135 (2005)), Japanese Patent Publication JP4294369B2 (Kobayashi et al.), and European Patent Publication EP0265091A1 (Hertier et al.).Compounds are described that have both an ...

Modified Polymers for Delivery of Polynucleotides, Method of Manufacture, and Methods of Use Thereof

A modified polymer is provided herein, the modified polymer having the following formula: 8. The modified polyacetal of claim 2 , wherein Zis ethylenediamine claim 2 , piperazine claim 2 , bis(piperidine) claim 2 , 1 claim 2 ,3-diaminopropane claim 2 , 1 claim 2 ,4-diaminobutane claim 2 , 1 claim 2 ,5-diaminopentane claim 2 , decamethylenediamine claim 2 , hexamethylenediamine claim 2 , lysine claim 2 , histidine claim 2 , arginine claim 2 , tryptophan claim 2 , agmatine or ornithine.13. The modified polyacetal of claim 12 , whereinn is between about 0.01 and about 0.9996 inclusive; and{'sub': '2', 'nis between about 0.02 and about 0.90 inclusive.'}14. The modified polyacetal of claim 12 , wherein Zis ethylenediamine claim 12 , piperazine claim 12 , bis(piperidine) claim 12 , 1 claim 12 ,3-diaminopropane claim 12 , 1 claim 12 ,4-diaminobutane claim 12 , 1 claim 12 ,5-diaminopentane claim 12 , decamethylenediamine claim 12 , hexamethylenediamine claim 12 , lysine claim 12 , histidine claim 12 , arginine claim 12 , tryptophan claim 12 , agmatine or ornithine.19. The modified polyacetal of claim 1 , wherein:{'sub': 1', '1, 'the ratio (m) of the number of Rto the total number of polyacetal units of the polyacetal is 0 to 0.25;'}{'sub': 3', '3, 'the ratio (m) of the number of Rto the total number of polyacetal units of the polyacetal is 0 to 100;'}{'sub': 4', '4, 'the ratio (m) of the number of Rto the total number of polyacetal units of the polyacetal is 0 to 30;'}{'sub': 5', '5, 'the ratio (m) of the number of Rto the total number of polyacetal units of the polyacetal is 0 to 0.03.'}20. The modified polyacetal of claim 19 , wherein{'sub': '1', 'mis 0.002 to 0.25;'}{'sub': '3', 'mis 0.002 to 100;'}{'sub': '4', 'mis 0.03 to 0.30; and'}{'sub': '5', 'mis 0.01 to 0.03.'} This application is a continuation-in-part of U.S. patent application Ser. No. 13/073,815, filed Mar. 28, 2011 (now allowed), which incorporates by reference and claims the benefit of and priority under 35 ...

Method for Preparing a Degradable Polymer Network

The present invention relates to methods for preparing a degradable polymer network. The methods for preparing a degradable polymer network comprise a) preparing a polymer composition comprising monomers of cyclic carbonates and/or cyclic esters and/or linear carbonates and/or linear esters and/or cyclic ethers and/or linear hydroxycarboxylic acids at a temperature between 20° C. and 200° C.; b) adding a cross-linking reagent comprising at least one double or triple C—C bond and/or a cross-linking radical initiator; c) processing the polymer composition (that contains the crosslinking reagentj into a desired shape; d) Crosslinking by irradiating the mixture. Further, the present invention relates to a degradable polymer network. Furthermore, the present invention relates to the use of the degradable polymer network.

Polymers for Functional Particles

A method includes producing libraries of nanoparticles having highly controlled properties, which can be formed by mixing together two or more macromolecules in different ratios. One or more of the macromolecules may be a polymeric conjugate of a moiety to a biocompatible polymer. The nanoparticle may contain a drug. The moiety may include a polypeptide or a polynucleotide, such as an aptamer. The moiety may be a targeting moiety, an imaging moiety, a chelating moiety, a charged moiety, or a therapeutic moiety. Another aspect is directed to systems and methods of producing such polymeric conjugates. In some embodiments, a solution containing a polymer is contacted with a liquid, such as an immiscible liquid, to form nanoparticles containing the polymeric conjugate. Other methods use such libraries, use or administer such polymeric conjugates, or promote the use of such polymeric conjugates. Kits involving such polymeric conjugates are also described. 1. (canceled)2. The method of claim 27 , wherein the moiety has a molecular weight of at least about 1000 Da.3. The method of claim 27 , wherein the moiety has a molecular weight of no more than about 1000 Da.4. The method of claim 27 , wherein the polymer is a block copolymer.5. The method of claim 27 , wherein the macromolecule is amphiphilic.6. The method of claim 27 , wherein at least a portion of the macromolecule is biodegradable.7. The method of claim 27 , wherein at least a portion of the macromolecule is hydrolyzable.8. The method of claim 27 , wherein the biocompatible polymer comprises a polymer selected from the group consisting of poly(lactide-co-glycolide) claim 27 , poly(lactide) claim 27 , poly(glycolide) claim 27 , poly(orthoesters) claim 27 , poly(caprolactones) claim 27 , polylysine claim 27 , poly(ethylene imine) claim 27 , poly(acrylic acid) claim 27 , poly(urethanes) claim 27 , poly(anhydrides) claim 27 , poly(esters) claim 27 , poly(trimethylene carbonate) claim 27 , poly(ethyleneimine) claim 27 , ...

Cyclodextrin-based polymers for therapeutics delivery

The present invention relates to novel compositions of therapeutic cyclodextrin containing polymeric compounds designed as a carrier for small molecule therapeutics delivery and pharmaceutical compositions thereof. These cyclodextrin-containing polymers improve drug stability and solubility, and reduce toxicity of the small molecule therapeutic when used in vivo. Furthermore, by selecting from a variety of linker groups and targeting ligands the polymers present methods for controlled delivery of the therapeutic agents. The invention also relates to methods of treating subjects with the therapeutic compositions described herein. The invention further relates to methods for conducting pharmaceutical business comprising manufacturing, licensing, or distributing kits containing or relating to the polymeric compounds described herein.

MULTI-ARM BLOCK COPOLYMERS AS DRUG DELIVERY VEHICLES

The invention provides methods for making copolymers and multi-arm block copolymers useful as drug delivery vehicles. The multi-arm block copolymers comprise a central core molecule, such as a residue of a polyol, and at least three copolymer arms covalently attached to the central core molecule, each copolymer arm comprising an inner hydrophobic polymer segment covalently attached to the central core molecule and an outer hydrophilic polymer segment covalently attached to the hydrophobic polymer segment, wherein the central core molecule and the hydrophobic polymer segment define a hydrophobic core region. The solubility of hydrophobic biologically active agents can be improved by entrapment within the hydrophobic core region of the block copolymer. The invention further includes pharmaceutical compositions including such block copolymers, pharmaceutical compositions, and methods of using the block copolymers as drug delivery vehicles. 1. A multi-arm block copolymer encompassed by the following formula:wherein each PEG is a poly(ethylene oxide) and each PLA is a poly(lactide). This application is a continuation of U.S. application Ser. No. 13/287,852, filed Nov. 2, 2011, which is a continuation of U.S. application Ser. No. 12/538,013, filed Aug. 7, 2009, now U.S. Pat. No. 8,071,692, which is a continuation of U.S. application Ser. No. 11/894,445, filed Aug. 21, 2007, now U.S. Pat. No. 7,589,157, which is a continuation of U.S. application Ser. No. 10/984,679, filed Nov. 8, 2004, now U.S. Pat. No. 7,265,186, which is a continuation-in-part of U.S. application Ser. No. 10/795,913, filed Mar. 8, 2004, now U.S. Pat. No. 6,838,528, which is a divisional of U.S. application Ser. No. 10/054,662, filed Jan. 22, 2002, now U.S. Pat. No. 6,730,334, which claims the benefit of U.S. Provisional Application Ser. No. 60/262,754, filed Jan. 19, 2001, the disclosures of which are incorporated herein by reference in their entireties.The invention relates to multi-arm copolymers ...

POLYMER SCAFFOLDS AND THEIR USE IN THE TREATMENT OF VISION LOSS

The present invention provides for scaffolds for growing RPE cells, comprising two or more biodegradable polymers. The present invention also provides for methods for creating a scaffold for growing RPE cells. Additionally, the present invention provides for RGD peptide linked polymer scaffolds for supporting the growth of RPE cells. The present invention provides methods of culturing RPE cells using the scaffolds produced herein. The present invention also provides methods of treating vision loss through the administration of RPE cell attached RGD peptide linked polymer scaffolds produced herein. The present invention further provides kits for treating vision loss. 1. A scaffold for growing RPE cells , comprising:two or more biodegradable polymers.2. The scaffold of claim 1 , wherein said two or more polymers comprise a blend.3. The scaffold of claim 1 , wherein said two or more polymers comprise two or more layers.48-. (canceled)9. The scaffold of claim 1 , further comprising an RGD peptide.1013-. (canceled)14. The scaffold of claim 9 , wherein said RPE cells attach to said RDG peptide.1521-. (canceled)22. An RGD peptide linked polymer scaffold for supporting the growth of RPE cells claim 9 , comprising: an RGD peptide bonded to a linker claim 9 , the linker being bonded to a polymer scaffold.2339-. (canceled)40. The RGD peptide linked polymer scaffold of claim 22 , wherein said polymer scaffold comprises a single layer of polymer.41. The RGD peptide linked polymer scaffold of claim 22 , wherein said polymer scaffold comprises multiple layers of polymers.4243-. (canceled)44. The RGD peptide linked polymer scaffold of claim 41 , wherein said multiple layer scaffold is coated with different polymers claim 41 , copolymers or blends of polymers such that each layer possesses a different biodegradable rate.4549-. (canceled)50. A method of creating a scaffold for growing RPE cells claim 41 , comprising:linking an RGD peptide to a polymer scaffold, wherein said polymer ...

CARRIER POLYMER PARTICLE, PROCESS FOR PRODUCING THE SAME, MAGNETIC PARTICLE FOR SPECIFIC TRAPPING, AND PROCESS FOR PRODUCING THE SAME

A process for producing carrier polymer particles comprising covering the surface of organic polymer particles having a particle diameter of 0.1 to 20 micrometers with a saccharide by chemically bonding the organic polymers and the saccharide. 1. A process for producing carrier polymer particles comprising covering the surface of organic polymer particles having a particle diameter of 0.1 to 20 micrometers with a saccharide by chemically bonding the organic polymers and the saccharide.2. The process according to claim 1 ,wherein when chemically bonding, the organic polymer particles have a first functional group and the saccharide has a second functional group, andthe organic polymer particles and the saccharide are chemically bonded by reacting the first functional group and the second functional group.3. The process according to claim 1 ,wherein the first functional group is at least one functional group selected from the group consisting of a carboxyl group, an epoxy group, an amino group, and a tosyl group.4. A process for producing carrier polymer particles comprising:covering organic polymer particles with a particle diameter of 0.1 to 20 micrometers, which has a functional group having reactivity with a carboxyl group, with a saccharide having a carboxyl group by chemically bonding the organic polymer particles and the saccharide, andtreating the organic polymer particles, of which the surface has been covered with the saccharide, with a basic solution.5. The process according to claim 4 ,wherein the saccharide is a polysaccharide.6. The process according to claim 4 ,wherein the chemical bonding is achieved by a bonding group including at least one of an amide bond or an ester bond.7. The process according to claim 4 ,wherein the functional group having reactivity with the carboxyl group is at least one functional group selected from the group consisting of an amino group, a hydroxyl group, and an epoxy group.8. The process according to claim 4 ,further ...

Carboxylic acid or acid salt functionalized polyester polymers

The present disclosure describes a polyester that contains plural pendant adjacent carboxylic acid or acid salt side groups for use in making a toner for use in imaging devices.

ISOCYANATE-TERMINATED PREPOLYMER

An isocyanate-terminated prepolymer having three components. The first component is 30-60 wt % polymerized residues of a first polyol containing a substituent of formula (I) 2. The isocyanate-terminated prepolymer of in which the first polyol comprises from 3 wt % to 9 wt % of esterified residues of at least one C-Canhydride claim 1 , C-Cdiacid or C-Clactone.3. The isocyanate-terminated prepolymer of in which the first polyol comprises from 0.35 to 0.38 units of formula (I) per fatty acid hydrocarbyl group.4. The isocyanate-terminated prepolymer of in which the first polyol comprises from 15 wt % to 27 wt % polymerized residues of at least one C-Caliphatic diol and has a hydroxyl number from 100 to 125 mg KOH/g.5. The isocyanate-terminated prepolymer of comprising 4-14 wt % polymerized residues of a glycol having Mfrom 300 to 3500.7. The two-component urethane system of in which the first polyol comprises from 3 wt % to 9 wt % esterified residues of at least one C-Canhydride claim 6 , C-Cdiacid or C-Clactone.9. The two-component urethane system of in which polymerized residues of at least one C-Caliphatic diol are present in the second polyol in an amount from 15 wt % to 32 wt % and the second polyol has a hydroxyl number from 150 to 195 mg KOH/g.10. The two-component urethane system of in which the second polyol comprises 3 wt % to 9 wt % esterified residues of a C-Caromatic anhydride. This invention relates generally to an isocyanate-terminated prepolymer produced from biological materials.The use of triglycerides in preparation of alkyd resins is well known. Typically, these resins are produced without modifying the fatty acid chains, but rather by utilizing the triglyceride ester groups to react with acids and glycols to form polyesters. Such resins usually have high molecular weights and require solvent to deliver the resin in a coating application.Production of condensation products useful in paints from reaction of triglycerides with maleic anhydride, ...

Cyclodextrin-based polymers for therapeutics delivery

The present invention relates to novel compositions of therapeutic cyclodextrin containing polymeric compounds designed as a carrier for small molecule therapeutics delivery and pharmaceutical compositions thereof. These cyclodextrin-containing polymers improve drug stability and solubility, and reduce toxicity of the small molecule therapeutic when used in vivo. Furthermore, by selecting from a variety of linker groups and targeting ligands the polymers present methods for controlled delivery of the therapeutic agents. The invention also relates to methods of treating subjects with the therapeutic compositions described herein. The invention further relates to methods for conducting pharmaceutical business comprising manufacturing, licensing, or distributing kits containing or relating to the polymeric compounds described herein.

SYNTHETIC STEREOISOMER PEPTIDES IN THE RETRO-INVERSO AND INVERSO CONFIGURATION, AND WITH CYCLIC AND LINEAR STRUCTURE, THEIR POLYMER CONJUGATES, THEIR ENCAPSULATION IN POLYMER PARTICLES, AND USES THEREOF

This invention discloses ligand-targeted multi-stereoisomer peptide-polymer conjugate compounds comprising a plurality of different synthetic and chemically modified stereoisomer peptides that have been conjugated to a biocompatible polymer carrying a peptide ligand for targeted delivery or encapsulated in ligand targeted polymer nanoparticles. The unique physicochemical properties of the stereoisomer peptides provide therapeutic compounds with ideal biopharmaceutical properties. The stereoisomer peptides carried by the polymer are delivered to cells or tissues to inhibit, suppress, block, or disrupt, simultaneously and independently, the functional domain of a different disease causing protein. Therefore the compounds are useful therapeutics for the treatment of abnormal angiogenesis and inflammation which are the hall mark of most human diseases including but not limited to cancer, metastasis, pathological conditions of the eye, cardiovascular, brain, and neurodegenerative disorders, diabetes, and diseases caused by infectious microorganisms. 117-. (canceled)191. The therapeutic compound of claim , wherein said unnatural amino acid is Sar , Nle , NMe-Val , or NMe-Leu201. The compound of claim , wherein said cyclic structure has an amide bond , a disulfide bond , or a lactam bond.211. The therapeutic compound of claim , wherein said linear alpha-helix is stabilized by terminal amino acid residues linkage.221. The therapeutic compound of claim , wherein said linker is conjugated by covalent bond to an activated carboxyl group of a single polymer branch , and wherein said polymer branch carries a single stereoisomer peptide conjugated to said linker231. The therapeutic compound of claim , wherein said branched polymer carries a plurality of different stereoisomer peptides conjugated each with said linker bound to a single polymer branch of said branched polymer.241. The therapeutic compound of claim , wherein said biocompatible polymer is a polymer chain , a branched ...

Toner, method for producing the toner, and image forming method

A toner including a binder resin containing an ester bond, and a releasing agent, wherein the releasing agent includes first C30-C50 alkyl monoester compound and second C30-C50 alkyl monoester compound, wherein the number of carbon atoms of the first C30-C50 alkyl monoester compound is different from that of the second C30-C50 alkyl monoester compound, wherein the amount of the first C30-C50 alkyl monoester compound is largest and the amount of the second C30-C50 alkyl monoester compound is second largest or same as the amount of the first C3OC50 alkyl monoester compound, wherein the amount of the first C30-C50 alkyl monoester compound is 30% by mass or more but less than 50% by mass to the releasing agent, and wherein the amount of the second C30-C50 alkyl monoester compound is 10% by mass or more but less than 50% by mass to the releasing agent.

Carrier polymer particle, process for producing the same, magnetic particle for specific trapping, and process for producing the same

Carrier polymer particles comprising organic polymer particles having a particle diameter of 0.1 to 20 micrometers and a saccharide with which the surface of the organic polymer particles is covered, the organic polymer particles and the saccharide being chemically bonded.

Catalyst system and process for preparing of polyester resins, fibre, filaments and yarn using said catalyst system

The present invention relates to a process for preparation of polyester resin in the presence of a novel catalyst system comprising an antimony compound and inorganic tin compound. The present invention also relates to a catalyst system for the preparation of polyester comprising an antimony compound and inorganic tin compound which reduces the polymerization time at all stages of polyester synthesis and reduces the generation of degradation product. This invention further relates to polyester resin with improved L color having significant importance in end-use applications.

Functional biodegradable polymers

Biodegradable polyesters are made by synthesizing copolymers derived from biodegradable hydroxyacid monomers as well as from hydroxyacid monomers containing a functional group such as an azide group, a halogen group, a thioacetate group, and the like. Preferably, the functionalized biodegradable polyester copolymers are derived from a functionalized hydroxyacid such as a homolog of lactic acid and/or glycolic acid with the copolyester thus containing functional groups on the backbone thereof. These biodegradable polyesters can be utilized wherever biodegradable polyesters are currently used, and also serve as a polymer to which various medical and drug delivery systems can be attached.

Process for Preparing Amine-Modified Polyester Resins with Improved Melt Flow

The invention is directed to a process for preparing a linear or branched amine-modified thermoplastic resin with high flowability using as starting materials a linear or branched polyester and a primary or secondary aliphatic amine. The process does not require that the amine and polyester be combined in a liquid organic solvent during the process, and can be performed readily at ambient pressure. The amine-modified resins can be extruded and pelletized using normal operating conditions, making this process a versatile option for achieving a wide variety of viscosities in a simple, low cost, continuous operation. 3. The process of claim 2 , wherein:each T in the resin of Formula 2 is independently phenyl or naphyl; andeach D in the resin of Formula 2 is independently selected from the group consisting of ethylenes, propylene, butylene, and dimethylenecyclohexene.4. The process of claim 2 , wherein the polyester of Formula 1 is selected from the group consisting of poly(ethylene terephthalate) claim 2 , poly(1 claim 2 ,4-butylene terephthalate) claim 2 , poly(ethylene naphthalate) claim 2 , poly(butylene naphthalate) claim 2 , poly(1 claim 2 ,3-propylene terephthalate) claim 2 , poly(cyclohexylenedimethylene terephthalate) and combinations thereof.5. The process of claim 2 , wherein the polyester of Formula 1 is a post-consumer recycled polyester.6. The process of claim 2 , wherein the polyester of Formula 1 further comprises 10 to 500 ppm of one or more metal cations selected from the group consisting of at least one of Ti claim 2 , Sb claim 2 , Sn claim 2 , Zn claim 2 , Ge claim 2 , Zr claim 2 , and Co.7. The process of claim 2 , wherein the polyester resin of Formula 2 is characterized by a —COOH end group content of 10 meq/kg or less.8. The process of claim 2 , wherein the amine has a boiling point that is 200° C. or higher at ambient pressure and a carbon to nitrogen ratio of 10:1 to 36:1.9. The process of claim 2 , wherein the resin of Formula 2 comprises 0.05 ...

POLYESTER FILM, BACK SHEET FOR SOLAR CELL, AND SOLAR CELL MODULE

A polyester film containing (A) a polyester, (B) a monofunctional glycidyl ether compound represented by the following general formula, and (C) a reaction promoter can prevent gelation and can reduce vaporization in forming a film, and is excellent in adhesiveness and weather resistance. In the formula, Rrepresents an aliphatic hydrocarbon group, Rand Rrepresent an alkylene group, n indicates an integer of 1 or more, and m indicates an integer of 0 or more. 2. The polyester film according to claim 1 , wherein Rin the general formula (1) is a linear aliphatic hydrocarbon group having from 4 to 25 carbon atoms.5. The polyester film according to claim 1 , wherein Rand Rin the general formula (1) each independently represent an alkylene group having 2 to 4 carbon atoms.6. The polyester film according to claim 1 , wherein m in the general formula (1) is an integer of 1 or more.7. The polyester film according to claim 1 , wherein the reaction promoter is a phosphonium compound or a phosphine.8. The polyester film according to claim 1 , wherein n in the general formula (1) is from 2 to 100.9. The polyester film according to claim 1 , wherein Rin the general formula (1) is an ethylene group.10. The polyester film according to claim 1 , wherein Rin the general formula (1) is an aliphatic hydrocarbon group having from 8 to 20 carbon atoms.11. The polyester film according to claim 1 , wherein the molecular weight of the monofunctional glycidyl ether compound represented by the general formula (1) is 800 or more.12. The polyester film according to claim 1 , wherein the acid value of the polyester is at most 25 eq/ton.13. The polyester film according to claim 1 , wherein the polyester is polyethylene terephthalate.14. The polyester film according to claim 1 , wherein the polyester is produced through solid-phase polymerization.15. The polyester film according to claim 1 , which is biaxially stretched.16. The polyester film according to claim 1 , which has an acid value of at ...

POLYLACTIC ACID COMPOSITION, FOAM MOLDED ARTICLE THEREOF AND METHOD OF PRODUCING THE SAME

An object of the present invention is to inexpensively provide a method and device of producing a high viscosity polylactic acid composition, which composition is appropriate for foam molding having a high expansion ratio and is stable, and a foam molded article having a high expansion ratio formed of said high viscosity polylactic acid composition. A method of producing a polylactic acid foam molded article of the present invention which can achieve the above-described object is characterized by comprising a step of mechanically grinding a polylactic acid composition by applying a shear force, using a device equipped with an injection molding machine (B) or an extrusion molding machine (G), an orifice portion (S) and a foaming mold (P), in a foaming gas atmosphere in the orifice portion (S). The above-described polylactic acid composition is obtained by mechanically grinding polylactic acid, which polylactic acid is cross-linked by polyisocyanate, by applying a shear force in an inert gas atmosphere, said polylactic acid composition obtained by the grinding being characterized by having an MI value of 0.05 or more and 5 or less, which MI value is measured at 190° C. under a load of 21.6 kg in accordance with JIS K7210 (ISO 1133) (FIG. ). 110-. (canceled)11. A polylactic acid composition obtained by mechanically grinding polylactic acid , which polylactic acid is cross-linked by polyisocyanate , by applying a shear force in supercritical condition of an inert gas , wherein the amount of said polyisocyanate combined is 0.4 to 5% by weight based on polylactic acid , and said polylactic acid composition obtained by the grinding has an MI value of 0.05 or more and 5 or less , which MI value is measured at 190° C. under a load of 21.6 kg in accordance with JIS K7210 (ISO 1133).12. The polylactic acid composition according to claim 11 , wherein a number average molecular weight in polystyrene equivalent of said polylactic acid composition obtained by the grinding measured ...

SULFONATE ESTERS AS LATENT ACID CATALYSTS

The present invention is directed towards novel sulfonic acid esters as catalysts for crosslinking of polymers having hydroxyl, carboxyl, and amide functional groups with a crosslinking agent and resin compositions containing the same. The present invention provides polymeric film coatings which have superior hardness, impact resistance, adhesion, improved blister resistance, salt spray characteristics and flexibility. These catalysts are especially effective in coil primer formulations containing calcium ion exchange anticorrosive pigments, where traditional blocked acid catalysts are ineffective. 2. The composition of wherein Rof Formula (I) is selected from the group consisting of hydrogen claim 1 , carboalkoxy claim 1 , alkyl having from 3 to 20 carbon atoms claim 1 , aryl having from 6 to 18 carbon atoms claim 1 , and cycloalkyl having from 3 to 20 carbon atoms.3. The composition of wherein Rof Formula (I) is selected from the group consisting of hydrogen claim 1 , carboalkoxy claim 1 , alkyl having from 3 to 20 carbon atoms claim 1 , aryl having from 6 to 18 carbon atoms claim 1 , and cycloalkyl having from 3 to 20 carbon atoms.4. The composition of wherein Rof Formula (I) is selected from the group consisting of hydrogen claim 1 , carboalkoxy claim 1 , acyloxy claim 1 , N-alkylcarbamyloxy claim 1 , N-arylcarbamyloxy claim 1 , alkyl having from 3 to 20 carbon atoms claim 1 , aryl having from 6 to 18 carbon atoms claim 1 , and cycloalkyl having from 3 to 20 carbon atoms.5. The composition of wherein Rof Formula (I) is selected from the group consisting of hydrogen claim 1 , carboalkoxy claim 1 , acyloxy claim 1 , N-alkylcarbamyloxy claim 1 , N-arylcarbamyloxy claim 1 , alkyl having from 3 to 20 carbon atoms claim 1 , aryl having from 6 to 18 carbon atoms claim 1 , and cycloalkyl having from 3 to 20 carbon atoms.6. The composition of wherein Rof Formula (I) is selected from the group consisting hydrogen claim 1 , carboalkoxy claim 1 , acyloxy claim 1 , N- ...

METHODS OF SEPARATING NUCLEIC ACID POLYMER CONJUGATES

Described herein are nucleic acid-polymer conjugates and methods of separating these conjugates from a mixture, such as a reaction mixture. 1. A method of separating a nucleic acid-hydrophobic polymer conjugate from at least one other component , e.g. , a contaminant , e.g. , an unreacted starting material , of a mixture , the method comprising:contacting the mixture with a first phase, e.g., a stationary phase, comprising a hydrogen bond donor or acceptor; andapplying a second phase, e.g., a mobile phase, comprising a polar solvent to selectively elute the nucleic acid-hydrophobic polymer conjugate from the stationary phase, thereby separating the nucleic acid-hydrophobic polymer conjugate from at least one other component of the mixture.2. The method of claim 1 , wherein the second phase claim 1 , e.g. claim 1 , the mobile phase comprises a de-aggregating agent claim 1 , e.g. claim 1 , an agent that disrupts hydrogen bonding of a nucleic acid molecule.3. The method of claim 1 , wherein the second phase claim 1 , e.g. claim 1 , the mobile phase comprises a salt.4. The method of claim 1 , wherein the stationary phase is a normal phase.5. The method of claim 1 , wherein the hydrogen bond donor or acceptor is attached to a support claim 1 , e.g. claim 1 , a solid support.6. The method of claim 5 , wherein the hydrogen bond donor or acceptor comprises hydroxyl moieties.78-. (canceled)9. The method of claim 5 , wherein the support has a diameter of 3 micrometers to 10 micrometers.10. The method of claim 9 , wherein the support comprises silica claim 9 , e.g. porous silica claim 9 , silica gel.11. The method of claim 1 , wherein the polar solvent comprises a polar aprotic solvent.12. (canceled)13. The method of claim 11 , wherein the polar aprotic solvent is selected from acetonitrile claim 11 , N claim 11 ,N-dimethylformamide claim 11 , acetone claim 11 , cyclohexanone claim 11 , methyl ethyl ketone claim 11 , methyl tert-butyl ether claim 11 , diethyl ether claim 11 , ...

USE OF 2-ISOPROPYL-2-ALKYL-1,3-PROPANEDIOLS FOR PREPARING POLYMERS

Polymer obtainable by polycondensation or polyadduct formation from monomeric compounds, wherein accompanying use is made as monomeric compound of 2-isopropyl-2-alkyl-1,3-propanediols of the formula I 2. The polymer according to claim 1 , wherein use is made as monomeric compound or its alkoxylated derivatives of the formula I of those for which R is methyl and/or 3-methylbutyl.3. The polymer according to claim 2 , wherein the compounds of the formula I are obtainable by reacting 3-methyl-2-alkylbutanal with formaldehyde in an aldol- Cannizarro reaction or by aldol reaction and subsequent hydrogenation.4. The polymer according to claim 1 , which is a polyester.5. The polymer according to claim 1 , which is a polycarbonatediol (obtainable by reacting dialkyl carbonates or cyclic carbonates with diols claim 1 , with elimination of alcohol).6. The polymer according to claim 1 , which is a polyurethane.7. The polymer according to claim 1 , which is a polyadduct which is obtainable by ring-opening addition polymerization of lactones or lactams.8. The use of the polymer according to for preparing a thermoplastic composition.9. A thermoplastic composition comprising a polymer and/or repeat units of a polymer according to .10. The use of the thermoplastic composition according to for producing a shaped article.11. The use of the polymer according to for producing a coating material claim 1 , sealant or adhesive.12. A coating material claim 1 , sealant or adhesive comprising repeat units of a polymer according to .13. The coating material claim 12 , sealant or adhesive according to claim 12 , which is an aqueous material.14. The use of the polymer according to for producing a powder coating material.15. A powder coating material comprising repeat units of a polymer according to .16. The use of the polymer according to for producing a radiation-curable coating material.17. A radiation-curable coating material comprising repeat units of a polymer according to . The invention ...

Process for the preparation of polyricinoleic acid ester polyols having primary hydroxyl end groups

The present invention relates to a process for the preparation of polyricinoleic acid ester polyols having primary hydroxyl end groups. It furthermore relates to polyricinoleic acid ester polyols obtainable according to the invention and polyurethane polymers prepared using these polyols. The process comprises the steps: a) polycondensation of ricinoleic acid until a hydroxyl number of >0 mg of KOH/g to <60 mg of KOH/g is reached; and b) reaction of the product obtained in step a) or of a secondary product of the product obtained in step a) comprising carboxyl groups with an epoxide of the general formula (I), wherein R1 represents hydrogen, an alkyl radical or an aryl radical, with the proviso that >80% by weight to <100% by weight, based on the total amount of the epoxide (I) employed, is ethylene oxide and the reaction is carried out in the presence of an amine as the catalyst.

Reactive diluents, methods of reacting, and thermoset polymers derived therefrom

A thermosetting composition comprises in combination an ethylenically unsaturated polymer, and a lactone reactive diluent of the formula wherein b=0 or 1. A method of manufacture of a thermoset polymer comprises reacting the unsaturated polymer and the lactone to form the thermoset polymer. The thermoset polymers are described, as well as articles comprising the thermoset polymers.

Polylactide-graft-lignin blends and copolymers

The present invention is directed to a PLA-graft-lignin polymers and copolymers and methods of making the same. As the lignocellulosic biorefining industry emerges as a viable fuels technology, the availability of the assortment of lignins will also expand. The use of lignins as a copolymer is one area where lignin may be utilized.

Method of Preparing Carboxylic Acid Functionalized Polymers

Methods for preparing water soluble, non-peptidic polymers carrying carboxyl functional groups, particularly carboxylic acid functionalized poly(ethylene glycol) (PEG) polymers are disclosed, as are the products of these methods. In general, an ester reagent R(C═O)OR′, wherein R′ is a tertiary group and R comprises a functional group X, is reacted with a water soluble, non-peptidic polymer POLY-Y, where Y is a functional group which reacts with X to form a covalent bond, to form a tertiary ester of the polymer, which is then treated with a strong base in aqueous solution, to form a carboxylate salt of the polymer. Typically, this carboxylate salt is then treated with an inorganic acid in aqueous solution, to convert the carboxylate salt to a carboxylic acid, thereby forming a carboxylic acid functionalized polymer. 2. The polymer product of claim 1 , containing less than 2% by weight of mPEG-OH.3. The polymer product of claim 1 , containing less than 0.5% by weight of mPEG-OH.4. The polymer product of claim 1 , containing substantially no amount of trifluoroacetic acid. This application is a continuation application of U.S. patent application Ser. No. 13/279,134, filed Oct. 21, 2011, which is a continuation application of U.S. patent application Ser. No. 13/023,960, filed Feb. 9, 2011, now U.S. Pat. No. 8,067,505, which is a continuation application of U.S. patent application Ser. No. 10/982,303, filed Nov. 4, 2004, now abandoned, which claims the benefit of priority under 35 U.S.C. §119(e) to U.S. Provisional Patent Application Ser. No. 60/517,794, filed Nov. 6, 2003, all of which are incorporated herein by reference in their entireties.This invention relates to methods for preparing water soluble, non-peptidic polymers carrying carboxyl functional groups, particularly carboxylic acid functionalized polyethylene glycol) (PEG)polymers.Poly(ethylene glycol) (PEG) derivatives activated with electrophilic groups are useful for coupling to nucleophilic groups, such as ...

POLYESTER COMPOSITION FOR SOLAR BATTERY AND METHOD FOR PRODUCING SAME

The present invention provides a polyester composition for a solar battery, which includes a dicarboxylic acid component having terephthalic acid as a main component and a diol component having ethylene glycol as a main component, the polyester composition satisfying the following Formulae (1) to (5): 0.65≦intrinsic viscosity≦0.90 (1); 0.7≦M/P≦1.3 (2); 200 ppm≦P≦600 ppm (3); amount of terminal carboxyl groups≦15 eq/t (4); and amount of terminal methoxy groups≦10 eq/t (5) (in the Formula (2), M represents the number of moles of an alkaline metal element and/or an alkaline earth metal element per 10g of a polyester; and P represents the number of elemental phosphorus per 10g of a polyester). 1. A polyester composition for a solar battery , which comprises a dicarboxylic acid component having terephthalic acid as a main component and a diol component having ethylene glycol as a main component , said polyester composition satisfying the following:{'br': None, '0.65≦intrinsic viscosity≦0.90;'}{'br': None, 'i': '≦M/P≦', '0.71.3;'}{'br': None, 'i': 'P≦', '200 ppm≦600 ppm;'}{'br': None, 'amount of terminal carboxyl groups≦15 eq/t;'}{'br': None, 'amount of terminal methoxy groups≦10 eq/t;'}{'sup': '6', 'wherein in said Formula (2), M represents the number of moles of an alkaline metal element and/or an alkaline earth metal element per 10g of a polyester; and'}{'sup': '6', 'P represents the number of moles of elemental phosphorus per 10g of a polyester).'}2. The polyester composition for a solar battery according to claim 1 , which is characterized by comprising substantially no external particle but 0.1 to 1.0% by weight of internal particles containing an alkaline metal compound and/or an alkaline earth metal compound and a phosphorus compound.3. The polyester composition for a solar battery according to claim 1 , having a solution haze of 10 to 50%.4. A method of producing the polyester composition for a solar battery according to a claim 1 , comprising the steps of: ...

PROCESS FOR PREPARING POLYURETHANE-POLYACRYLATE HYBRID DISPERSIONS

The present invention relates to a new process for preparing polyurethane-polyacrylate hybrid dispersions, and to the resulting dispersions and their use. 1. A polyurethane-polyacrylate hybrid dispersion obtained by two-stage free-radical polymerization of ethylenically unsaturated compounds in the presence of a polyurethane (P1) , wherein the polymerization comprises:subjecting, in a first stage, an ethylenically unsaturated compound (e) to at least partial free-radical polymerization in the presence of the polyurethane (P1), a redox initiator system (I), and an iron compound (F); andsubsequently subjecting, in a second stage, an ethylenically unsaturated compound (f) to free-radical polymerization,whereinthe polyurethane (P1) comprisesexclusively aliphatic isocyanates, cycloaliphatic isocyanates, or both, as synthesis components, and has an at least partially neutralized acid group content of less than 500 mmol per kg of polyurethane,the ethylenically unsaturated compound (e) of the first stage has a glass transition temperature of at least 50° C.,the ethylenically unsaturated compound (f) of the second stage has a glass transition temperature of up to 20° C.,a weight ratio of polyurethane (P1) to a sum of the ethylenically unsaturated compounds (e) and (f) of the first and second stages is from 50:50 to 10:90, anda temperature during the free-radical polymerization is not more than 85° C.2. The dispersion according to claim 1 , wherein the polyurethane (P1) is obtained by a process comprising:preparing a polyurethane by reactinga) a polyfunctional isocyanate having 4 to 30 C atoms,b) a diol,c) optionally a further polyfunctional compound different from the diol, andd) a monomer different from the polyfunctional isocyanate, the diol, and the polyfunctional compound, to obtain a polyurethane in the presence of a solvent;subsequently dispersing the polyurethane in water; andoptionally adding polyamines before the dispersing, during the dispersing, after the ...

POLYMER MANUFACTURING PROCESS

Embodiments relate to a relatively rapid transesterification process including transesterifying condensation polymers such as polyethylene terephthalate (PET), or other polyesters used in commerce, with a modifying monomer mix containing other monomers to manufacture new polymers containing the pre-condensed moieties. The process preferably only involves transesterification as a reaction mechanism. The process preferably produces a rapid buildup of molecular weight and/or polymer uniformity by the high temperature transesterification of the condensation polymer with the modifying monomer mixture. The process can be performed in any suitable vessel including an extrusion line, and it has the advantage of greatly reduced cycle times over currently used condensation polymer utilization processes such as the recycling of PET into other materials. 128.-. (canceled)29. A method of making a polymer comprising:providing a condensation polyester comprising a plurality of constituent monomers and having a first molecular weight;providing a modifying monomer comprising more than two reactive groups; andwithout depolymerizing the condensation polyester into its constituent monomers, transesterifying the modifying monomer with a predetermined amount of the condensation polyester,wherein the transesterifying produces a final polymer having a second molecular weight that is greater than the first molecular weight.30. The method of claim 29 , wherein the reactive groups are hydroxyl groups.31. The method of claim 29 , wherein the reactive groups are ester groups.32. The method of claim 29 , wherein the condensation polyester is polyethylene terephthalate.33. The method of claim 29 , wherein the condensation polyester is polyethylene naphthalate.34. The method of claim 29 , wherein the modifying monomer has a molecular weight of less than 1500 Daltons.35. The method of claim 29 , wherein the modifying monomer is selected from the group consisting of: alcohols claim 29 , acids claim ...

SURFACE MODIFICATION OF PIGMENTS AND COMPOSITIONS COMPRISING THE SAME

Disclosed herein is a method of making a modified pigment, comprising: reacting, under Mitsunobu conditions: (a) a first reactant comprising a protonated nucleophile having a pK<15, and (b) a second reactant comprising a hydroxyl-containing organic group, wherein a pigment is attached to either the first or second reactant. The method further comprises forming the modified pigment having attached an organic species comprising the nucleophile bonded to the organic group, with the net elimination of a proton and a hydroxyl. Also disclosed herein are modified pigments, which can have applications in chemical toners, inkjet ink and electrophoretic ink compositions, black matrix materials, color filters, and coatings. 1. A method of making a modified pigment , comprising:reacting, under Mitsunobu conditions:{'sub': 'a', '(a) a first reactant comprising a protonated nucleophile having a pK<15, and'}(b) a second reactant comprising a hydroxyl-containing organic group, wherein a pigment is attached to either the first or second reactant, andforming the modified pigment having attached an organic species comprising the nucleophile bonded to the organic group, with the net elimination of a proton and a hydroxyl.2. The method of claim 1 , wherein the pigment is attached to the first reactant.35-. (canceled)6. The method of claim 1 , wherein the protonated nucleophile is selected from carboxylic acids claim 1 , phenols claim 1 , naphthols claim 1 , and phthalimides.7. The method of claim 1 , wherein the hydroxyl-containing organic group is selected from primary and secondary alcohols.8. (canceled)9. The method of claim 1 , wherein the reactant not attached to the pigment comprises a polymer.1011-. (canceled)12. The method of claim 9 , wherein the polymer is selected from hydroxyl-containing polymers.1316-. (canceled)17. The method of claim 1 , wherein the nucleophile is bonded to the organic group via linkages selected from phenyl esters claim 1 , phenyl ethers claim 1 , ...

CHEMICAL MODIFICATION OF LIGNIN AND LIGNIN DERIVATIVES

A method for producing a trans-esterified hydroxypropyl lignin (HPL) is provided in one example embodiment and includes precipitating a lignin, dissolving the precipitated lignin in a solution, adding a reagent to the solution, adjusting the pH of the solution, allowing reactions in the solution to occur for a predetermined amount of time, precipitating the solution to produce a precipitate, and washing, filtering, and drying the precipitate to produce the trans-esterified HPL. 1. A method for producing a trans-esterified hydroxypropyl lignin (HPL) , the method comprising:precipitating a lignin;dissolving the precipitated lignin in a solution;adding a reagent to the solution;adjusting a pH of the solution;allowing reactions in the solution to occur for a predetermined amount of time;precipitating the solution to produce a precipitate; andwashing, filtering, and drying the precipitate to produce the trans-esterified HPL.2. The method of claim 1 , wherein the HPL is a Kraft lignin precipitated by a Lignoboost process.3. The method of claim 1 , wherein the lignin is dissolved in a sodium hydroxide solution.4. The method of claim 3 , wherein the sodium hydroxide solution is about four percent to about six percent sodium hydroxide.5. The method of claim 1 , wherein the pH of the solution is adjusted to a range of about 11.5 pH to about 12.5 pH6. The method of claim 1 , wherein the reagent is propylene oxide.7. The method of claim 6 , wherein a total weight of the propylene oxide added to the solution is about half a total weight of the precipitated lignin in the solution.8. The method of claim 1 , wherein the solution is precipitated by reducing the pH to below about 2.5 pH.9. The method of claim 8 , further comprising:adding sulfuric acid to reduce the pH.10. A trans-esterified lignin/thermoplastic blend comprising: precipitating a lignin;', 'dissolving the precipitated lignin in a solution;', 'adding a reagent to the solution;', 'adjusting a pH of the solution;', ' ...

RESIN COMPOSITE MATERIAL AND PROCESS FOR PRODUCING SAME

Disclosed herein are a resin composite material that has excellent mechanical strength and can be easily produced and a method for producing such a resin composite material. 1. A resin composite material obtained by chemically bonding a reactive polyfunctional compound to both a thermoplastic resin and a carbon material having a graphene structure.2. The resin composite material according to claim 1 , wherein the reactive polyfunctional compound has reactive functional groups claim 1 , and wherein the reactive functional groups are functional groups selected from the group consisting of a carboxyl group claim 1 , a carbonyl group claim 1 , a sulfonic acid group claim 1 , a hydroxyl group claim 1 , an isocyanate group claim 1 , a silyl group claim 1 , a siloxy group claim 1 , an alkoxy group claim 1 , a vinyl group claim 1 , chlorine claim 1 , an aryl group claim 1 , an amino group claim 1 , an ether group claim 1 , an ester group claim 1 , an amide group claim 1 , a thiol group claim 1 , a (meth)acryl group claim 1 , and an epoxy group.4. The resin composite material according to claim 3 , wherein the compound having a structure represented by the formula (1) or the compound in which the compounds having a structure represented by the formula (1) are chemically bonded together is the compound having a structure represented by the formula (1).5. The resin composite material according to claim 3 , wherein the compound having a structure represented by the formula (1) or the compound in which the compounds having a structure represented by the formula (1) are chemically bonded together is a compound B in which the compounds having a structure represented by the formula (1) are bonded together claim 3 , and wherein in the compound B claim 3 , a moiety derived from at least one of the compounds having a structure represented by the formula (1) is chemically bonded to the thermoplastic resin and at least one of moieties derived from the other compounds having a structure ...

FUNCTIONALIZED AMINO ACIDS AND ABSORBABLE POLYMERS THEREFROM

The present invention relates to compounds of formula I and II, which are functionalized amino acids, and polymers formed from the same. 115-. (canceled)17. (canceled)18. (canceled)19. The polymer of claim 16 , wherein the polymer is formed from two functionalized amino acids.20. The polymer of claim 16 , wherein the polymer is further polymerized with a lactone monomer.21. The polymer of claim 20 , wherein the lactone monomer is selected from glycolide claim 20 , lactide claim 20 , ε-caprolactone claim 20 , trimethylene carbonate claim 20 , and p-dioxanone.22. The polymer according to claim 16 , wherein:y is selected from 2, 3, and 4;z is selected from 2, 3, and 4;m is selected from 2, 3, and 4; andn is selected from 2, 3, and 4.23. The polymer according to claim 16 , wherein: [{'sub': '2', '—CHCOO—;'}, {'sub': '3', '—CH(CH)COO—;'}, {'sub': 2', '2', '2, '—CHCHOCHCOO—; and,'}, {'sub': 2', '2', '2', '2', '2, '—CHCHCHCHCHCOO—;'}], 'X is selected from [{'sub': '2', '—COCHO—;'}, {'sub': '3', '—COCH(CH)O—;'}, {'sub': 2', '2', '2, '—COCHOCHCHO—;'}, {'sub': 2', '2', '2', '2', '2, '—COCHCHCHCHCHO—; and,'}], 'Y is selected froma, b, and c, are independently selected from 0-2, provided that a+b+c total from 2-4.24. The polymer according to claim 23 , wherein:{'sub': '1-4', 'R′ is selected from hydrogen, benzyl, and a straight-chained or branched Calkyl; and,'}a, b, and c, are independently selected from 0-2, provided that a+b+c total from 2-3.25. The polymer according to claim 24 , wherein:{'sub': '3', 'R′ is selected from hydrogen, benzyl, and CH; and,'}a, b, and c, are independently selected from 0-1, provided that a+b+c total from 2-3.26. The polymer according to claim 16 , wherein:{'sub': '2', 'X is —CHCOO—;'}{'sub': '2', 'Y is —COCHO—;'}{'sub': '1-4', 'R′ is selected from hydrogen, benzyl, and a straight-chained or branched Calkyl; and,'}a, b, and c, are independently selected from 0-2, provided that a+b+c total from 2-4.27. The polymer according to claim 26 , wherein:{' ...

PROCESS FOR MANUFACTURING A THERMOFORMABLE PLASTICIZED COMPOSITE CONTAINING CELLULOSE FIBER AND A MOLDABLE POLYMER

The present invention concerns a process for manufacturing a thermoformable plasticized composite containing cellulose fiber and polylactide by blending the dry cellulose fiber and a compatibilizer in a compactor into pellets, and subsequently reacting the reactive compatibilizer and the mixture of cellulose fiber and polylactide by compounding. The invention also concerns a composite manufactured using said process, as well as further processed products. 1. A process for manufacturing a thermoformable plasticized composite from cellulose fiber and a moldable polymer comprising:blending dry cellulose fibers, the moldable polymer and one or more compatibilizers into a compressed biomaterial, and subsequentlyreacting the compatibilizer(s) and the mixture of cellulose fiber and polylactide by compounding into the composite.2. The process according to claim 1 , wherein the cellulose fiber is obtained from any wood material from softwood trees claim 1 , or any wood material from hardwood trees or from non-wood materials claim 1 , or grasses claim 1 , straw claim 1 , leaves claim 1 , bark claim 1 , seeds claim 1 , hulls claim 1 , flowers claim 1 , vegetables or fruits from materials.3. The process according to claim 1 , wherein the moldable polymer is selected from polylactide claim 1 , polyethylene claim 1 , polypropylene claim 1 , polyhydroxyalkanoates claim 1 , thermoplastic polyesters and polyamides.4. The process according to claim 1 , wherein the at least one compatibilizer is selected from long-chained (≧C8) aliphatic linear or branched organic compounds containing epoxy or anhydride functionalities claim 1 , or alternatively from such compounds containing silicate or hydroxyl functionalities.5. The process according to claim 1 , wherein the raw-materials and the compatibilizers are pressed through the openings of a dry compactor 1-20 times.6. The process according to claim 1 , wherein the raw materials and the compatibilizers are pressed through the openings of ...

Fine powder of biosourced aliphatic polyester and production method thereof

The invention relates to a method for the production of biosourced aliphatic polyester powder having a volume median diameter of less than 30 μm, comprising: a step consisting in supplying an aliphatic polyester having an inherent viscosity of less than 0.5 dl/g; and a step consisting in grinding the polyester, so as to obtain a polyester powder having a volume median diameter of less than 30 μm. The invention also relates to a powder in which the particles have a volume median diameter of less than 30 μm and are impregnated with a compound selected from among polyols and/or carboxylic acids. The invention further relates to the use of the powder for the production of cosmetic, pharmaceutical and perfume products.

Synthesis polyesters with precisely sequenced two or more structural untis

The present invention related to compositions and methods of producing polyesters with two and/or more different structural units and the materials of polyesters with structure sequence exactly specified therefore produced, and various articles produced from such exactly sequenced polyesters. More particularly, homogeneous copolymers with precisely defined sequences of various hydroxyl acids and their derivatives are produced according to the present invention.

RESINS FROM UNSATURATED POLYESTERS AND POLYSILAZANES AND DUROPLASTIC REACTION RESIN MOULDING MATERIALS PRODUCED THEREFROM

The invention relates to an unsaturated polyester resin containing a polyester or a polyester mixture, produced from at least one unsaturated dicarboxylic acid and at least one diol; and at least one silazane which is accessible for copolymerization with a C═C double bond of the dicarboxylic acid. The invention also relates to an unsaturated polyester resin moulding material which can be obtained or is obtained by cross-linking an unsaturated polyester resin as defined above. Said moulding material can optionally contain reinforcing materials. Said unsaturated polyester resin can be produced using the following steps: (a) a polyester from at least one diol and at least one unsaturated dicarboxylic acid is provided; (b) at least one silazane which is accessible for copolymerization which a C═C double bond of the dicarboxylic acid is provided; (c) the components are mixed according to (a) and (b). The unsaturated polyester resin moulding material can be produced from the above-mentioned polyester resin by hardening thereof by means of a radical initiator. 1. An unsaturated polyester resin , containing at least one unsaturated dicarboxylic acid and', 'at least one diol, '(a) a polyester or a polyester mixture, produced from'}and(b) at least one silazane, which is accessible for copolymerization with a C═C double bond of the dicarboxylic acid.2. An unsaturated polyester resin according to claim 1 , further comprising(c) a reactive diluting agent.3. An unsaturated polyester resin according to claim 2 , wherein the reactive diluting agent is an unsubstituted or substituted styrene.4. An unsaturated polyester resin according to any one of the preceding claims claim 2 , further comprising(d) at least one radical initiator.5. An unsaturated polyester resin according to any one of the preceding claims claim 2 , wherein the polyester has an acid number of less than 12 mg/KOH.6. An unsaturated polyester resin according to any one of the preceding claims claim 2 , wherein the ...

UNSATURATED POLYESTER RESIN COMPOSITIONS

The present invention relates to a pre-accelerated resin composition, characterized in that the resin composition comprises an unsaturated polyester resin and/or a vinyl ester resin, a soluble copper compound and a heterocyclic aromatic amine and which resin composition is essentially free of cobalt. The present invention further relates to a two component composition in which the first component comprises such a resin composition and in which the second component comprises an organic peroxide. 1. A process for radically curing a resin composition , comprising the steps of:(a) providing a two-component composition having a first component comprised of a resin composition comprising an unsaturated polyester resin and/or a vinyl ester resin, and containing less than 0.001 mmol cobalt per kg primary resin system, and a second component comprising an organic peroxide;(b) subjecting the first component to peroxide curing by bringing the first and second components of the two-component composition into contact with one another, and(c) accelerating the peroxide curing of the resin composition of the first component by incorporating into the first component prior to step (b) an accelerator combination comprised of a soluble copper compound and a heterocyclic aromatic amine in an amount sufficient to effect accelerated peroxide curing of the first component according to step (b).2. The process according to claim 1 , wherein step (b) is effected at a temperature in the range of from −20 to +200° C.4. The process according to claim 1 , wherein the heterocyclic aromatic amine is present in an amount between 0.001 and 1000 mmol/ kg primary resin system.5. The process according to claim 1 , wherein the heterocyclic aromatic amine is imidazole or a derivative thereof.6. The process according to claim 1 , wherein the soluble copper compound is an organic copper compound.7. The process according to claim 6 , wherein the organic copper compound is a copper carboxylate.8. The process ...

Biodegradable Photoluminescent Polymers

The present invention describes a novel clastomeric biodegradable photoluminescent polymer (BPLP). The BPLPs of the present invention possess great processability and tunable fluorescence emission characteristics and are cell-compatible and biodegradable. The BPLPs of the present invention can serve as both implant materials and bioimaging probes. 158-. (canceled)60. The composition of claim 59 , wherein the diol is selected from 1 claim 59 ,8-octanediol claim 59 , ethylene glycol claim 59 , propylene glycol claim 59 , poly(ethylene glycol) claim 59 , poly(propylene glycol) claim 59 , 1 claim 59 ,3-propanediol claim 59 , ethanediol claim 59 , and cis-1 claim 59 ,2-cyclohexanediol.61. The composition of claim 59 , wherein the amino acid comprises alanine claim 59 , arginine claim 59 , asparagine claim 59 , aspartic acid claim 59 , cysteine claim 59 , glycine claim 59 , glutamine claim 59 , glutamic acid claim 59 , histidine claim 59 , isoleucine claim 59 , leucine claim 59 , lysine claim 59 , methionine claim 59 , proline claim 59 , phenylalanine claim 59 , serine claim 59 , threonine claim 59 , tyrosine claim 59 , tryptophan claim 59 , valine claim 59 , or a combination thereof.62. The composition of claim 59 , wherein the amino acid comprises an L-amino acid claim 59 , D-amino acid claim 59 , D claim 59 ,L-amino acid claim 59 , or a derivative thereof.63. The composition of claim 59 , wherein an acid anhydride or a multifunctional acid chloride is used in addition to the citric acid or triethyl citrate.64. The composition of claim 59 , wherein maleic acid claim 59 , maleic anhydride claim 59 , fumaric acid claim 59 , fumaryl chloride claim 59 , acryloylchloride claim 59 , itaconic acid claim 59 , or allylmalonic acid is used in addition to the citric acid or triethyl citrate.65. The composition of claim 59 , wherein the oligomer is crosslinked.66. A composition comprising:an oligomer synthesized from monomers comprising (i) a multifunctional monomer comprising ...

POLYESTER CO-PHOSPHONATES

Polyester co-polyphosphonates including of phosphonates covalently incorporated with polyesters and methods for making such polyester co-polyphosphonates are described herein. The polyester co-phosphonates and compositions prepared from these compounds exhibit an excellent combination of processing characteristics, mechanical and fire resistant properties. 1. A method for preparing a polyester co-phosphonate comprising:combining at least one diol and at least one dicarboxylic acid or at least one di-ester to form a reaction mixture;reacting the reaction mixture; andintroducing at least one phosphonate into the reaction mixture, wherein the phosphonate is incorporated into a polyester to form a polyester co-phosphonate.2. The method of where the method is carried out in a batch process or a continuous process.3. The method of claim 1 , further comprising adding at least one AB monomer into the reaction mixture.4. The method of claim 1 , further comprising introducing a catalyst into the reaction mixture.5. The method of claim 1 , wherein phosphonate comprises about 1 wt. % to about 80 wt. % of the reaction mixture.6. The method of claim 1 , wherein the phosphonate is a diaryl alkyl phosphonate.7. The method of claim 1 , wherein the phosphonate is diphenyl methyl phosphonate.8. The method of claim 1 , wherein the phosphonate is oligomeric phosphonate.9. The method of claim 8 , wherein the phosphonate is an oligomeric phosphonate derived from diphenyl methyl phosphonate and bisphenol A.10. The method of claim 1 , wherein the phosphonate is a polyphosphonate.11. The method of claim 10 , wherein the polyphosphonate is derived from diphenyl methyl phosphonate and bisphenol A.12. The method of claim 1 , wherein incorporating is carried out during the step of reacting.13. The method of claim 1 , wherein introducing is carried out during or after the step of combining.14. The method of claim 1 , wherein the diol is selected from the group consisting of 1 claim 1 ,4- ...

DEGRADABLE POLYMERS, METHODS OF MAKING THE SAME, AND USES THEREOF

The present invention relates generally to degradable polymers, including degradable polymers that may be responsive to ionic strength. The invention also relates generally to methods of making degradable polymers and methods of using such polymers. 1. A degradable stimuli-responsive polymer , wherein the polymer is responsive to ionic strength.2. The polymer of claim 1 , wherein the polymer solubilizes in the presence of a salt concentration of less than about 0.05 M.3. The polymer of claim 1 , wherein the polymer is substantially insoluble in an aqueous salt solution having a salt concentration of 0.05 M or greater.4. The polymer of claim 1 , wherein the polymer is a cationic polymer.5. The polymer of claim 1 , wherein the polymer is a block copolymer claim 1 , random copolymer claim 1 , star copolymer claim 1 , graft copolymer claim 1 , a bottle-brush polymer claim 1 , and any combination thereof.6. The polymer of claim 1 , wherein the polymer comprises a polyester segment.7. The polymer of claim 1 , wherein the polymer comprises at least one unit selected from the group consisting of caprolactone claim 1 , lactide claim 1 , lactic acid claim 1 , glycolic acid claim 1 , hydroxyalkanoic acid claim 1 , hydroxybutyric acid claim 1 , hydroxyvaleric acid claim 1 , trimethylene carbonate claim 1 , dicarboxylic acid anhydrides claim 1 , butylene succinate claim 1 , butylene adipate claim 1 , abietic acid claim 1 , levopimaric acid claim 1 , hydroabietic acid claim 1 , pimaric acid claim 1 , norbornene claim 1 , derivatives thereof claim 1 , and any combination thereof.8. The polymer of claim 1 , wherein the polymer comprises at least one charged moiety selected from the group consisting of a quaternary ammonium moiety claim 1 , a pyridinium moiety claim 1 , a phosphonium moiety claim 1 , derivatives thereof claim 1 , and any combination thereof.9. The polymer of claim 1 , wherein the polymer has a molecular weight in a range of about 5 claim 1 ,000 g/mole to about 5 ...

PHENOLIC MODIFIED POLYESTERS AND AQUEOUS DISPERSIONS

Substrates, such as the interior surfaces of food containers, can be coated using a composition including a phenolic modified polyester resin prepared using a formulation not including Bisphenol A as a component or subcomponent. These polymers arid subsequent coatings are free of both mobile and bound Bisphenol A moieties. These polymers and resulting coatings have properties similar to and, in some embodiments, superior over comparable conventional polyester coatings. 1. A phenolic modified polyester resin composition prepared by grafting a phenolic resin to a polyester resin , wherein the phenolic modified polyester resin is substantially free of bisphenol A.2. The phenolic modified polyester resin according to claim 1 , wherein the polyester resin comprises a condensation product of one or more carboxylic acids with one or more polyalcohols claim 1 , and the phenolic resin is a condensation product of at least one aromatic hydrocarbon and at least one of an aldehyde or a ketone.3. The phenolic modified polyester resin according to claim 2 , wherein the polyester resin has a molecular weight of between 6 claim 2 ,000 and 100 claim 2 ,000 g/mol.4. The phenolic modified polyester resin according to claim 3 , wherein the polyester resin has a molecular weight of between 7 claim 3 ,000 and 35 claim 3 ,000 g/mol.5. The phenolic modified polyester resin according to claim 4 , wherein the polyester resin has an Acid Number of between 25 and 55 claim 4 , an hydroxyl number between 30 and 60 and a Tg of between 30° C. and 55° C.6. The phenolic modified polyester resin according to claim 2 , wherein the phenolic resin is the condensation product of an aromatic hydrocarbon and one of an aldehyde and ketone.7. The phenolic modified polyester resin according to claim 6 , wherein the polyester resin is present in amount from 6% to 30% per total weight of the combined resins claim 6 , and the polyester resin is present in an amount from 70% to 94% per total weight.8. The ...

Compositions for improving polyesters

A method for altering the melt characteristics of a polyester, such as the melt strength, the method comprising the step of melt mixing the polyester, with a tetracarboxylic dianhydride; across-linker and chain extender comprising at least two groups being able to react with a carboxy group and a phenolic hydroxyl group; and a poly functional compound comprising at least two groups selected from the group consisting of non-sterically hindered phenolic hydroxyl groups, and carboxy groups.

SULFOPOLYESTER POLYMER COMPOSITIONS WITH IMPROVED WATER DISPERSIBILITY

A sulfopolyester containing residues of 2,2,4,4-tetralkylcyclobutane-1,3-diol such as 2,2,4,4-tetramethylcyclobutane-1,3-diol is highly dispersible in water. This allows one to reduce the content of sulfonate groups or reduce the amount of ethylene glycol or other hydrophilic glycols to retain good water resistance in cured coatings. The sulfopolyester may also be a reaction product of a 2,2,4,4-tetralkylcyclobutane-1,3-diol along with 1,4-cyclohexanedimethanol, neopentyl glycol, or a mixture thereof with an acid component. Coating compositions may also contain these sulfopolyesters along with water and a polymer resin. 1. A sulfopolyester comprising the reaction product of: a. 2,2,4,4-tetraalkylcyclobutane-1,3-diol (TACD) in an amount ranging from 2 to 60 mole % based on the moles of the polyhydroxyl component, and', 'b. a polyhydroxyl compound other than TACD in an amount ranging from 40 mole % to 98 mole %, based on the moles of the polyhydroxyl component; and, '(i) a polyhydroxyl component comprising a. dicarboxylic acid compounds, derivatives of dicarboxylic acid compounds, or combinations thereof, in a cumulative amount amount from 85 mole % to 95 mole %, based on the moles of the acid component; and', {'br': None, 'sub': '3', 'sup': '−', '—SO.'}, 'b. a sulfomonomer component in an amount ranging from 5 mole % to 15 mole %, based on the moles of the acid component, having at least one ionic sulfonate group covalently bonded directly or indirectly to an aromatic or cycloaliphatic ring, said ionic sulfonate group having the structure represented by the following formula], '(ii) an acid component comprising2. (canceled)4. The sulfopolyester of claim 1 , wherein the TACD compound comprises 2 claim 1 ,2 claim 1 ,4 claim 1 ,4-tetramethylcyclobutane-1 claim 1 ,3-diol claim 1 , 2 claim 1 ,2 claim 1 ,4 claim 1 ,4-tetraethylcyclobutane-1 claim 1 ,3-diol claim 1 , 2 claim 1 ,2 claim 1 ,4 claim 1 ,4-tetra-n-propylcyclobutane-1 claim 1 ,3-diol claim 1 , 2 claim 1 ,2 claim ...

AMPHIPHILIC DENDRON-COILS, MICELLES THEREOF AND USES

The invention generally relates to the fields of drug delivery and cell capture. In particular, the invention relates to amphiphilic dendron-coils, micelles thereof and their use for drug delivery vehicles and/or cell capture. 1. A micelle comprising amphiphilic dendron-coils , wherein each amphiphilic dendron-coil comprises a non-peptidyl , hydrophobic core-forming block , a polyester dendron and a poly(ethylene) glycol (PEG) moiety.2. The micelle of wherein the non-peptidyl claim 1 , hydrophobic core-forming block comprises polycaprolactone (PCL) claim 1 , poly(lactic acid) (PLA) claim 1 , poly(glycolic acid) (PGA) or poly(lactic-co-glycolic acid) (PLGA); wherein the polyester dendron is a generation 3 to generation 5 polyester dendron with either an acetylene or carboxylate core; and wherein the PEG moiety is a methoxy PEG (mPEG) moiety claim 1 , amine-terminated PEG (PEG-NH) moiety claim 1 , acetylated PEG (PEG-Ac) moiety claim 1 , carboxylated PEG (PEG-COOH) moiety claim 1 , thiol-terminated PEG (PEG-SH) moiety claim 1 , N-hydroxysuccinimide-actived PEG (PEG-NHS) moiety claim 1 , NH-PEG-NHmoiety or NH-PEG-COOH moiety.38-. (canceled)9. The micelle of or wherein the non-peptidyl claim 1 , hydrophobic core-forming block has a molecular weight from about 0.5 kDa to about 20 kDa.1018-. (canceled)19. The micelle of wherein the polyester dendron is a generation 3 (G3) dendron.20. The micelle of wherein the polyester dendron is a generation 4 (G4) dendron.21. The micelle of wherein the polyester dendron is a generation 5 (G5) dendron.22. The micelle of wherein the polyester dendron is a generation 3 polyester-8-hydroxyl-1-acetylene bis-MPA dendron.23. The micelle of wherein the PEG moiety is a methoxy PEG (mPEG) moiety claim 1 , amine-terminated PEG (PEG-NH) moiety claim 1 , acetylated PEG (PEG-Ac) moiety claim 1 , carboxylated PEG (PEG-COOH) moiety claim 1 , thiol-terminated PEG (PEG-SH) moiety claim 1 , N-hydroxysuccinimide-actived PEG (PEG-NHS) moiety claim 1 , NH- ...

Oil in water emulsion

The present invention relates to an oil-in-water emulsion, wherein the oil comprises an acid functional unsaturated polyester which acid functional unsaturated polyester comprises unsaturated dicarboxylic acid units, diol units, units of an emulsifier with HLB value of from 9 to 20 and further comprising chain extender units. The present invention further relates to a fibre mat comprising fibres and a binder comprising such acid functional unsaturated polyester.

HYBRID POLYMERS

Described herein are polymers comprising a polyester and at least one polyhedral oligomeric silsesquioxane, wherein the polyester is capable of forming a stereocomplex with a polymer comprising a complimentary polyester and composites thereof. 1. A polymer comprising a polyester and at least one polyhedral oligomeric silsesquioxane , wherein the polyester is capable of forming stereocomplex with a polymer comprising a complimentary polyester.3. The polymer of claim 2 , the polyester comprises a substantially enantiomerically pure aliphatic polyester.4. The polymer of claim 2 , wherein the polyester comprises one of substantially pure poly(D-lactic acid) or poly(L-lactic acid).5. The polymer of claim 1 , wherein the polymer comprises about 1-20 polyhedral oligomeric silsesquioxanes.9. The polymer of claim 7 , wherein the polyester is terminated with a moiety selected from the group consisting of hydrogen claim 7 , alkyl claim 7 , alkenyl claim 7 , alkynyl claim 7 , aralkyl claim 7 , cycloalkyl claim 7 , cycloalkenyl claim 7 , heterocycloalkyl claim 7 , and heterocycloalkenyl; or has the formula CR(OCRCR)]—; wherein u is a whole number selected from 1-20; and R is independently selected from the group consisting of hydrogen claim 7 , alkyl claim 7 , alkenyl claim 7 , alkynyl claim 7 , aralkyl claim 7 , cycloalkyl claim 7 , cycloalkenyl claim 7 , heterocycloalkyl claim 7 , and heterocycloalkenyl.11. The polymer of claim 1 , wherein the polymer comprising a complimentary polyester comprises poly(D-lactic acid) or poly(L-lactic acid).12. The polymer of claim 1 , wherein the complimentary polyester is a polymer of claim 1 , poly(D-lactic acid) claim 1 , or poly(L-lactic acid).13. A stereocomplex comprising at least one polymer of .14. A composite comprising a stereocomplex and at least one matrix polymer claim 1 , wherein the stereocomplex comprises at least one polymer of .15. The composite of claim 1 , wherein the stereocomplex further comprises a second polymer of or ...

Biodegradable Aliphatic-Aromatic Copolyester for Use in Nonwoven Webs

A method for forming a biodegradable aliphatic-aromatic copolyester suitable for use in fibers is provided. In one embodiment, for example, an aliphatic-aromatic copolyester is melt blended with an alcohol to initiate an alcoholysis reaction that results in a copolyester having one or more hydroxyalkyl or alkyl terminal groups. By selectively controlling the alcoholysis conditions (e.g., alcohol and copolymer concentrations, catalysts, temperature, etc.), a modified aliphatic-aromatic copolyester may be achieved that has a molecular weight lower than the starting aliphatic-aromatic polymer. Such lower molecular weight polymers also have the combination of a higher melt flow index and lower apparent viscosity, which is useful in a wide variety of fiber forming applications, such as in the meltblowing of nonwoven webs.

POLYLACTIC ACID, RESIN COMPOSITION, AND RESIN MOLDED PRODUCT

A polylactic acid has a terminal-modified structure represented by the following formula (1): 2. The polylactic acid having a terminal-modified structure according to claim 1 , wherein the organic phosphorus compound is selected from a phosphonate compound claim 1 , a phosphinate compound claim 1 , a phosphine oxide compound claim 1 , and a phosphite compound.3. The polylactic acid having a terminal-modified structure according to claim 1 , wherein a terminal modification rate of the polylactic acid is 50% or more.4. The polylactic acid having a terminal-modified structure according to claim 1 , wherein a terminal modification rate of the polylactic acid is 80% or more.5. The polylactic acid having a terminal-modified structure according to claim 1 , wherein n is from 500 to 3000.6. The polylactic acid having a terminal-modified structure according to claim 1 , wherein the organic phosphorus compound has an aromatic ring structure.8. A resin composition having the polylactic acid having a terminal-modified structure of .9. The resin composition according to claim 8 , wherein the organic phosphorus compound is selected from a phosphonate compound claim 8 , a phosphinate compound claim 8 , a phosphine oxide compound claim 8 , and a phosphite compound.10. The resin composition according to claim 8 , wherein a terminal modification rate of the polylactic acid having a terminal-modified structure is 50% or more.11. The resin composition according to claim 8 , wherein the organic phosphorus compound has an aromatic ring structure.12. A resin molded product having the polylactic acid having a terminal-modified structure of .13. The resin molded product according to claim 12 , wherein the organic phosphorus compound is selected from a phosphonate compound claim 12 , a phosphinate compound claim 12 , a phosphine oxide compound claim 12 , and a phosphite compound.14. The resin molded product according to claim 12 , wherein a terminal modification rate of the polylactic acid ...

POLYMER COMPOUNDS HAVING COUPLED COMPONENTS

Intermediate products (compounds, semi-finished goods) for polymer materials having coupled components, to the polymer materials based on the intermediate products, and to the components to be manufactured therefrom. A method for producing intermediate products, polymer materials and components, and to the use thereof. 111-. (canceled)12. A method for producing intermediate products for polymeric materials or parts thereof with addition-components , comprising the steps of: distributing a free radical initiator on the addition-component , adding a thermoplastic polymer and initiating crosslinking by energetic impact , whereby the polymer-chains are cross-linked to the surface of the addition-component.13. The method for producing intermediate products for polymeric materials or parts thereof with addition-components according to claim 12 , wherein the free radical initiator is distributed in solution or as a fine dispersed suspension or dispersion or as a fine dispersed solid on the addition-component.14. The method for producing intermediate products for polymeric materials or parts thereof with addition-components according to claim 12 , wherein the addition-component is present in a finely divided state with a linear dimension of less than 4 mm in at least one dimension and/or in fibrous type.15. The method for producing intermediate products for polymeric materials or parts thereof with addition-components according to claim 12 , wherein the thermoplastic polymer is applied on the addition-component by extrusion compounding with a free radical initiator.16. The method for producing intermediate products for polymeric materials or parts thereof with addition-components according to claim 12 , wherein a coupling agent and the free radical initiator are used in a molar ratio of 100:1 to 1:100.17. The method for producing intermediate products for polymeric materials or parts thereof with addition-components according to claim 12 , wherein the addition-component is ...

Blends of a Polylactic Acid and a Water Soluble Polymer

The present invention relates to water-dispersive biodegradable compositions which may be formed into films and fibres. The present invention also relates to polymer blends comprising polylactide and water-soluble polymers. More particularly, the present invention relates to the use of grafted copolymers (PLA-grafted water-soluble polymers) for the compatibilization of PLA and water-soluble polymers. Such reactive compatibilization of immiscible polymer blends is achieved in such a way that main blend components are covalently bonded. In addition, such reactive compatibilization can be carried out by reactive extrusion. 1. A filter element for a smoking article comprising fibres formed from a composition comprising a blend of polylactide (PLA) and a water soluble polymer , wherein the blend further comprises a reactive compatibilizer in an amount sufficient to compatibilize the blend.2. The filter element as claimed in claim 1 , wherein the water soluble polymer is selected from the group consisting of: polyvinyl alcohol (PVOH) claim 1 , carboxymethyl cellulose (CMC) claim 1 , hydroxyethyl cellulose (HEC) claim 1 , hydroxypropyl cellulose (HPC) claim 1 , methyl cellulose (MC) and ethyl cellulose (EC) claim 1 , xanthan and pullulan claim 1 , and blends thereof.3. The filter element as claimed in claim 2 , wherein the water soluble polymer is one of PVOH and HEC.4. The filter element as claimed in claim 1 , wherein the water soluble polymer is included in an amount within the range of 30 to 70 wt % claim 1 , of the blend of polylactide and water soluble polymer.5. The filter element as claimed in claim 1 , wherein the reactive compatibilizer is a grafted copolymer.6. The filter element as claimed in claim 5 , wherein the grafted copolymer is a copolymer of PLA and a compound reactive towards hydroxyl groups.7. The filter element as claimed in claim 6 , wherein the grafted copolymer is maleic anhydride-grafted polylactide (MA-g-PLA).8. The filter element as claimed in ...

LIGNIN POLY(LACTIC ACID) COPOLYMERS

Provided herein are graft co-polymers of lignin and poly(lactic acid) (lignin-g-PLA copolymer), thermoset and thermoplastic polymers including them, methods of preparing these polymers, and articles of manufacture including such polymers. 1. A process of preparing a graft polymer comprising lignin and poly(lactic acid) (lignin-g-PLA copolymer) , the process comprising reacting a lignin with a lactide and/or , and an organic base to provide the lignin-g-PLA copolymer.2. The process of claim 1 , which is performed in the absence of a Lewis acid metal catalyst.3. The process of claim 1 , wherein the organic base is selected from a guanidine derivative and triazabicyclodecene (TBD).5. The process of claim 1 , wherein the lactide is D-lactide claim 1 , L-lactide claim 1 , DL-lactide claim 1 , or a mixture of 2 or more thereof.6. The process of claim 1 , which is performed at about 100° C. to about 140° C.7. The process of claim 1 , where the lignin-g-PLA copolymer comprises by weight about 1% to about 50% claim 1 , about 5% to about 45% claim 1 , about 10% to about 40% claim 1 , about 15% to about 35% claim 1 , about 20% to about 30% claim 1 , about 1% to about 10% claim 1 , about 11% to about 20% claim 1 , about 21% to about 30% claim 1 , about 31% to about 40% claim 1 , or about 41% to about 50% lignin or about 25% lignin.8. The process of claim 1 , wherein the lignin-g-PLA copolymer has a number average molecular weight of about 1000 Da to about 100 claim 1 ,000 Da claim 1 , about 100 Da to about 11 claim 1 ,000 Da claim 1 , or about 10 claim 1 ,000 Da to about 100 claim 1 ,000 Da.9. The process of claim 1 , wherein the polylactic acid) chain length on the lignin-g-PLA copolymer has a degree of polymerization of about 2 to about 240.10. The process of claim 1 , further comprising reacting the lignin with a second co-monomer selected from caprolactone and other cyclic lactone and carbonate monomers.11. The process of claim 1 , wherein the lignin-g-PLA copolymer ...

BIOABSORBABLE POLYMERIC COMPOSITION FOR A MEDICAL DEVICE

A crystallized bioabsorbable polymer scaffold comprises a polymer composition of poly (L-lactide-co-tri-methylene-carbonate) or poly (D-lactide-co-tri-methylene-carbonate) or poly (L-lactide-co-ε-caprolactone) or poly (D-lactide-co-ε-caprolactone) in the form of block copolymers of blocky copolymers, wherein the scaffold is cold-bendable. 1. A crystallized bioabsorbable polymer scaffold comprising a polymer composition of poly (L-lactide-co-tri-methylene-carbonate) or poly (D-lactide-co-tri-methylene-carbonate) or poly (L-lactide-co-ε-caprolactone) or poly (D-lactide-co-ε-caprolactone) in the form of block copolymers of blocky copolymers , wherein the scaffold is cold-bendable.2. The bioabsorbable polymer scaffold of claim 1 , wherein the scaffold is cold bendable at temperatures in a range of about 10° C. to about 30° C.3. The bioabsorbable polymer scaffold of claim 1 , wherein the polymer composition comprises poly (L-lactide-co-ε-caprolactone) or poly (D-lactide-co-ε-caprolactone).4. The bioabsorbable polymer scaffold of claim 1 , wherein the polymer composition comprises poly (L-lactide-co-ε-caprolactone).5. The bioabsorbable polymer scaffold of claim 1 , further comprising a poly (L-lactide) moiety or a poly (D-lactide) moiety or a poly L-lactide-co-PEG moiety or a poly D-lactide-co-PEG moiety.6. The bioabsorbable polymer scaffold of claim 1 , wherein the composition includes increased hydrophilicity and free molecular volume allowing for uptake of water.7. The bioabsorbable polymer scaffold of claim 1 , wherein the composition includes amorphous and semicrystalline polymer portions.8. The bioabsorbable polymer scaffold of claim 7 , wherein a crystallinity and tensile strength of the composition is adjustable by elongation of the semicrystalline portion.9. The bioabsorbable polymer scaffold of claim 1 , further comprising at least one radiopaque marker.10. A crystallized bioabsorbable polymer scaffold comprising a polymer composition of poly (L-lactide-co-tri- ...

A Process to Prepare a Polyester Polymer Composition Comprising a Polyester Polymer Having Furanic Units and a Polyester Polymer Composition Obtainable Thereby and the use Thereof

A process to prepare a polyester polymer composition comprising a polyester polymer having furanic units is disclosed. The process comprises the step of reacting a cyclic polyester oligomer in the presence of a catalyst in a ring-opening polymerization step under conditions of a reaction temperature and reaction time sufficient to yield a polyester polymer having furanic units. The invention further relates to a polyester polymer composition obtainable by said process, wherein the polyester polymer composition comprises a polyester polymer having furanic units and a cyclic polyester oligomer comprising either structure Yor Y, preferably in a concentration of less than 5 wt %, more preferably less than 1, more preferably less than 0.5 in the composition. The present invention further relates also to the use of said polyester polymer composition in extrusion, injection molding, or blow molding. 115-. (canceled)17. The process of claim 16 , wherein the reaction temperature is from 25 to 350° C. claim 16 , and wherein the reaction time is from 10 to 300 minutes.18. The process of claim 16 , wherein the catalyst is selected from a base claim 16 , or a Lewis acid catalyst.19. The process of claim 18 , wherein the ring-opening polymerization step takes place in the presence of an initiator having at least one or more hydroxyl groups.20. The process of claim 18 , wherein the catalyst is a Lewis acid catalyst claim 18 , and wherein the initiator is present and it is selected from the group consisting of water claim 18 , 1-octanol claim 18 , 2-ethylhexanol claim 18 , 1-decanol claim 18 , isodecyl alcohol claim 18 , 1-undecanol claim 18 , 1-dodecanol claim 18 , 2-methyl-2-propanol claim 18 , 4-phenyl-2-butanol claim 18 , 1 claim 18 ,3-propandiol claim 18 , and pentaerytrol.21. The process of claim 20 , wherein the Lewis acid catalyst is tin octoate and the initiator is either 1-octanol or 2-ethylhexanol.22. The process of claim 18 , wherein the initiator is present in an ...

HIGH RECYCLE CONTENT POLYOLS FROM THERMOPLASTIC POLYESTERS AND LIGNIN OR TANNIN

Polyester polyols, processes for making them, and applications for the polyols are disclosed. In some aspects, the polyols comprise recurring units from a thermoplastic polyester or an aromatic polyacid source, a glycol, and a lignin, tannin, or mixture thereof. Optionally, the polyols incorporate recurring units of a hydrophobe. The polyols are made in one or multiple steps; in some aspects, the thermoplastic polyester or aromatic polyacid source and the glycol are reacted first, followed by reaction with the lignin, tannin, or mixture thereof. High-recycle-content polyols having desirable properties and attributes for formulating polyurethane products, including two-component polyurethane coatings, can be made. The polyols provide a sustainable alternative to bio- or petrochemical-based polyols. 1. A polyester polyol comprising recurring units from:(a) a digested thermoplastic polyester;(b) a glycol; and(c) a lignin, a tannin, or a mixture thereof;wherein the molar ratio of glycol to thermoplastic polyester recurring units is at least 0.8, the amount of lignin, tannin, or mixture thereof incorporated into the polyol is within the range of 0.1 to 35 wt. %, and the polyol has a hydroxyl number within the range of 25 to 800 mg KOH/g.2. The polyol of wherein the thermoplastic polyester is selected from the group consisting of polyethylene terephthalate; polybutylene terephthalate; polytrimethylene terephthalate; glycol-modified polyethylene terephthalate; copolymers of terephthalic acid and 1 claim 1 ,4-cyclohexanedimethanol; isophthalic acid-modified copolymers of terephthalic acid and 1 claim 1 ,4-cyclohexanedimethanol; copolymers of 2 claim 1 ,2 claim 1 ,4 claim 1 ,4-tetramethyl-1 claim 1 ,3-cyclobutanediol with isophthalic acid claim 1 , terephthalic acid or orthophthalic derivatives; polyhydroxyalkanoates; polyethylene furanoate; dihydroferulic acid polymers; and mixtures thereof.3. The polyol of wherein the thermoplastic polyester is selected from the group ...

LAMINATING ADHESIVES USING POLYESTER FROM TRANSESTERIFICATION OF POLYLACTIC ACID WITH NATURAL OILS

A specific mixture of polyols, at least one of which contains the transesterification product of the polymer polylactic acid with natural oils. The mixture of polyols can be used as one component of a two-component adhesive for laminating flexible packaging. The other component comprises an isocyanate-functionalized compound. The two components are combined before use and the resulting adhesive can be used to bond films to form a flexible packaging material. 1. An isocyanate reactive component for reaction with an isocyanate functionalized component to form a two-component laminating adhesive , comprising:a transesterification product of a reaction mixture comprising polymeric polylactic acid and at least one natural oil; anda high OH functionality polyol product.2. The isocyanate reactive component of wherein the reaction mixture comprises polymeric polylactic acid claim 1 , at least one natural oil and a diol having a molecular weight of about 50 to about 2000 daltons.3. The isocyanate reactive component of wherein the reaction mixture comprises:polylactic acid present in an amount of from 50 to 85 weight percent based on a total weight of the reaction mixture;at least one natural oil present in an amount of from 13 to 30 weight percent based on the total weight of the reaction mixture;a diol present in an amount of from 2 to 36 weight percent based on the total weight of the reaction mixture; andoptionally, a transesterification catalyst.4. The isocyanate reactive component of having a renewable content in the range of at least 70%.5. The isocyanate reactive component of having a viscosity of 3 claim 1 ,000 to 20 claim 1 ,000 cps at 25° C.6. The isocyanate reactive component of any of wherein the high OH functionality polyol product has at least about two primary hydroxyl groups and at least about two secondary hydroxyl groups.7. The isocyanate reactive component of wherein the natural oil is castor oil and/or soybean oil.8. A two-component adhesive for ...

Oxygen scavenging polyester compositions for containers

Disclosed herein is an oxygen scavenging composition for containers. The oxygen scavenging composition for containers may comprise at least one polyester component, a transition metal catalyst, an oxygen scavenger, and a vegetable oil. The vegetable oil preferably comprises at least one molecule having a double allylic structure. The polyester component preferably comprises at least one acid unit and at least one diol unit. The concentration of double allylic structures of the vegetable oil in the composition may be greater than 5.0 meq/kg of all of the polyester components. The oxygen scavenger is preferably present in the composition at a level less than 1.0% by weight of the total composition. The vegetable oil is preferably present in the composition at a level greater than 0.3% by weight relative to the total weight of the polyester components, the transition metal catalyst and the vegetable oil.

POLYMERIC DISPERSANTS CONTAINING ONE OR TWO QUATERNARY AMINE ANCHORING GROUPS WITH IMPROVED CHEMICAL AND THERMAL STABILITY

The present invention relates to a dispersant having a tertiary or quaternary amine anchoring group and a solubilizing polymer selected from Cfatty acid; a Cak(en)yl substituted succinic acid, anhydride or partial ester; a dimer or trimer fatty acid; and/or polymers from repeating units of polyesters, polyethers, polyacrylate, polyamides, polyurethanes or mixtures of said repeating units in a random or blocky copolymer. The dispersants are an improvement in that the alkylene connecting group between the tertiary or quaternized amine and the solubilizing polymer lacks abstractable hydrogen atoms at the geminal carbon atom from the nitrogen of the tertiary or quaternized amine over the prior art. The dispersants are useful as dispersants with improved thermal stability and low amounts yellow color after aging at elevated temperatures. 2. The dispersant composition of claim 1 , wherein D comprises be a polymer comprising repeating units from a polyester claim 1 , polyether claim 1 , polyamide claim 1 , polyamide claim 1 , polyacrylate claim 1 , polyurethane claim 1 , polyolefin repeating units and mixtures of said repeating units as random or blocky copolymers.3. The dispersant composition of claim 1 , wherein D comprises a Cfatty acid; a Cak(en)yl substituted succinic acid claim 1 , anhydride or partial ester; and/or a dimer or trimer fatty acid.5. The composition of claim 4 , wherein D comprises be a polymer comprising repeating units from a polyester claim 4 , polyether claim 4 , polyamide claim 4 , polyacrylate claim 4 , polyurethane claim 4 , polyolefin repeating units and mixtures of said repeating units as random or blocky copolymers claim 4 , such as a polyether/polyester or polyester/polyamide.6. The composition of claim 4 , wherein D comprises a Cfatty acid; a Calk(en)yl substituted succinic acid claim 4 , anhydride or partial ester; and/or a dimer or trimer fatty acid.7. The composition of claim 4 , wherein the continuous media is an aqueous media and D is a ...

MOISTURE CURABLE ORGANOPOLYSILOXANE COMPOSITION

The present invention provides curable compositions comprising non-tin metal catalysts that accelerate the condensation curing of moisture-curable silicones/non-silicones. In particular, the present invention provides bismuth(III) sulfonate complexes that are particularly suitable as replacements for organotin in sealant and RTV formulations. In one embodiment, the present invention provides bismuth (III) camphorsulfonate and bismuth(III) methanesulfonate complexes. Further, these bismuth(III) sulfonate complexes are comparable or superior to organotin such as DBTDL, exhibit certain behavior in the presence of components that allow for tuning or adjusting the cure characteristics of the present compositions, and provide good adhesion and storage stability. 2. The composition of claim 1 , wherein at least one (OSR) group comprises a Rchosen from methyl or (7 claim 1 ,7-dimethyl-2-oxobicyclo[2.2.1]heptan-1-yl)methyl.3. The composition of claim 1 , wherein r is 3.4. The composition of claim 1 , wherein r is 3 and Ris methyl.5. The composition of claim 1 , wherein r is 3 and Ris (7 claim 1 ,7-dimethyl-2-oxobicyclo[2.2.1]heptan-1-yl)methyl.6. The composition of claim 1 , comprising from about 0.001 to about 7 parts per weight of catalyst component (C) per 100 parts per weight of the polymer (A).7. The composition of comprising from about 0.01 to about 7 parts per weight catalyst (C) per 100 parts per weight of the polymer (A).8. The composition of comprising from about 0.005 to about 0.05 wt. pt. of catalyst component (C) per 100 parts of component.10. The composition of claim 1 , wherein the crosslinker component (B) is chosen from tetraethylorthosilicate (TEOS); methyltrimethoxysilane (MTMS); methyltriethoxysilane; vinyltrimethoxysilane; vinyltriethoxysilane; methylphenyldimethoxysilane; 3 claim 1 ,3 claim 1 ,3-trifluoropropyltrimethoxysilane; methyltriacetoxysilane; vinyltriacetoxysilane; ethyltriacetoxysilane; di-butoxydiacetoxysilane; phenyltripropionoxysilane; ...

CULTURE MEDIUM FOR PROLIFERATING STEM CELL, WHICH CONTAINS SULFATED COMPOUND

A medium which comprises a fibroblast growth factor (FGF), and a sulfated compound or a pharmaceutically acceptable salt thereof at a concentration which promotes the growth of a stem cell in the presence of FGF, is useful for culturing stem cells. 1. A medium for stem cell proliferation , comprising a fibroblast growth factor (FGF) , and a sulfated compound or a pharmaceutically acceptable salt thereof at a concentration promoting the growth of a stem cell in the presence of FGF , wherein the sulfated compound content is not more than 250 ng/ml when the sulfated compound is a sulfated polysaccharide.2. The medium according to claim 1 , wherein the sulfated compound or pharmaceutically acceptable salt thereof is sulfated saccharide or a pharmaceutically acceptable salt thereof claim 1 , wherein the sulfated saccharide content is not more than 250 ng/ml when the sulfated saccharide is a sulfated polysaccharide.4. The medium according to claim 2 , wherein the sulfated saccharide or pharmaceutically acceptable salt thereof is at least one compound selected from the group consisting of a sulfated monosaccharide claim 2 , a sulfated disaccharide claim 2 , a sulfated polysaccharide claim 2 , a sulfated sugar alcohol claim 2 , and a sulfated cyclitol claim 2 ,or a pharmaceutically acceptable salt of said at least one compound.5. The medium according to claim 2 , wherein the content level of sulfur in said sulfated saccharide or pharmaceutically acceptable salt thereof is not less than 5 wt %.6. The medium according to claim 2 , wherein said sulfated saccharide or pharmaceutically acceptable salt thereof is at least one member selected from the group consisting of dextran sulfate Na claim 2 , cellulose SONa claim 2 , xanthan gum SONa claim 2 , pectin SONa claim 2 , fucoidan claim 2 , alginate SONa claim 2 , inulin SONa claim 2 , maltoheptaose SONa claim 2 , stachyose SONa claim 2 , maltotriose SONa claim 2 , maltitol SONa claim 2 , sucrose 8SOK claim 2 , glucose SONa claim ...

Polyamidoamine dispersants

A pigment dispersant can be obtained by reacting amine-rich moieties C with at least one polymer P having one or more amine reactive groups. The amine-rich moieties C have an amine density of at least 600 mg KOH/g and are obtainable from repetitive self-reaction of at least one type of substance B and/or from cross-reaction of at least one B with at least one substance A. B is an adduct of at least one substance A and at least one linker D. The amine-reactive functionality in B and D are reacted with reactive amines in B and/or A; and if B has only one amine reactive group, then additional D and/or mixture of B and A is reacted to a previously formed C, where such an additional reaction of D and/or mixture of B and A to a formed C is repeated for 1 to 10 times. 1. A pigment dispersant obtained by reacting amine-rich moieties C with at least one polymer P , said polymer P having one or more amine reactive groups ,wherein said amine-rich moieties C have an amine density of at least 600 mg KOH/g and said amine-rich moieties C are obtainable from repetitive self-reaction of at least one type of substance B and/or from cross-reaction of at least one B with at least one substance A,wherein the at least one B is an adduct of the at least one substance A and at least one linker D, and B contains 1-15 amine-reactive groups and 4-15 in total number of primary, secondary, tertiary and quaternary amines,the at least one substance A is a branched and/or linear aliphatic and/or cycloaliphatic or aromatic polyamine containing 4-15 total number of primary, secondary, tertiary and quaternary amines, andthe at least one linker D is an acrylate, a maleate/fumarate mono-ester or a maleate/fumarate di-ester containing 1-15 amine-reactive groups, or a mixture thereof; andwherein the amine-reactive groups in B and D are reacted with reactive amines in B and/or A, and if B has only one amine reactive group then additional D and/or mixture of B and A is reacted to a previously formed C, ...

Method involving 1-benzotriazolyl carbonate esters of poly(ethylene glycol)

The invention provides for preparing a polymer-active agent conjugate, the method comprising the steps of reacting an amino acid derivative with a biologically active agent under conditions to form a polymer-active agent conjugate.

MACROMOLECULAR TRANSITION METAL COMPLEXES FOR TREATMENT OF CANCERAND PROCESS FOR THEIR PREPARATION

The present invention relates to macromolecular transition metal complexes, characterized by having the general formula (I), to the process for their preparation, and to bidentate and monodentate macroligands. The invention also refers to pharmaceutical compositions and medicaments containing said macromolecular transition metal complexes, and to the use of said pharmaceutical compositions, medicaments and macromolecular transition metal complexes for cancer therapy and/or cancer prevention, as antitumor agent in solid tumors, liquid tumors and/or metastases and/or as radiosensitizer agents. 2. The macromolecular transition metal complexes according to claim 1 , characterized in that the macroligands claim 1 , the macromolecular monodentate ligands and the macromolecular bidentate ligands are molecules with a molecular weight >1000 g/mol claim 1 , natural or synthetic claim 1 , having linear or branched chain claim 1 , comprising a repeating unit claim 1 , and having at least at one of its chain ends one or more functional groups allowing their coordination to a metal center and optionally having at one of its chain ends biomolecules claim 1 , preferably selected from amino acids claim 1 , peptides claim 1 , oligopeptides claim 1 , proteins claim 1 , protein fragments claim 1 , estradiol and its derivatives claim 1 , vitamins claim 1 , carbohydrates claim 1 , water claim 1 , nucleic acids claim 1 , or molecules of biological interest.3. The macromolecular transition metal complexes according to claim 2 , characterized in that the macroligands are natural or synthetic polymers having linear or branched chain claim 2 , containing one or more repeating units preferably selected from polylactide claim 2 , polycaprolactone claim 2 , poly-N-(2-hydroxypropyl)methacrylamide claim 2 , poly(γ claim 2 ,L-glutamic acid) claim 2 , poly(citric acid) claim 2 , poly(ethylene glycol) claim 2 , poly(aspartic acid); copolymers preferably selected from poly(γ claim 2 ,L-glutamic acid)- ...

INITIATOR COMPOSITION, UNSATURATED POLYESTER RESIN COMPOSITION COMPRISING SAME, AND METHOD FOR CURING RESIN

An initiator composition, including: at least two compounds represented by the chemical formula of R—CO—O—O—CO—R and a compound represented by the chemical formula of R—CO—O—O—R, where R represents a C-Calkyl or a C-Caryl or substituted aryl, Rrepresents a C-Calkyl or a C-Caryl, and Rrepresents a C-Calkyl. 1. An initiator composition , comprising: at least two compounds represented by formula R—CO—O—O—CO—R and a compound represented by formula R—CO—O—O—R , wherein R represents a C-Calkyl or a C-Caryl or substituted aryl , Rrepresents a C-Calkyl or a C-Caryl , and Rrepresents a C-Calkyl.2. The initiator composition of claim 1 , wherein the two compounds represented by the formula of R—CO—O—O—CO—R are a diacyl peroxide selected from the group consisting of benzoyl peroxide claim 1 , 2 claim 1 ,4-dichlorobenzene acyl peroxide claim 1 , lauroyl peroxide claim 1 , and diacetyl peroxide claim 1 , and the compound represented by the formula of R—CO—O—O—Ris a carboxylic ester peroxide selected from the group consisting of tert-butyl peroxybenzoate (TBPB) claim 1 , tert-butyl peroxy diethyl acetate claim 1 , t-butyl peroctoate (TBPO).3. The initiator composition of claim 2 , comprising between 50 and 95 parts by weight of the two compounds represented by the formula of R—CO—O—O—CO—R and between 5 and 50 parts by weight of the compound represented by the formula of R—CO—O—O—R.4. The initiator composition of claim 3 , comprising between 75 and 95 parts by weight of the two compounds represented by the formula of R—CO—O—O—CO—R and between 5 and 25 parts by weight of the compound represented by the formula of R—CO—O—O—R.5. The initiator composition of claim 4 , comprising 75 parts by weight of the diacyl peroxide and 25 parts by weight of the carboxylic ester peroxide claim 4 , wherein the diacyl peroxide comprises 25 parts by weight of the benzoyl peroxide claim 4 , 20 parts by weight of 2 claim 4 ,4-dichlorobenzene acyl peroxide claim 4 , 15 parts by weight of lauroyl peroxide ...

BRANCHED POLYMER, METHOD FOR PREPARING THE SAME AND METHOD FOR PREPARING A FOAM

A branched polymer, a preparation method thereof and a method for preparing a foam are provided. The branched polymer is a transesterification product of a composition, and the composition includes 100 parts by weight of polyethylene terephthalate and 0.5-2.0 parts by weight of polyol. The branched polymer has an inherent viscosity of from 1.2 dL/g to 1.6 dL/g, a number average molecular weight of from 75,000 g/mol to 90,000 g/mol, a polydispersity index from 3.0 to 6.0, a melt index from 0.8 g/10 min to 7.5 g/10 min, a shear viscosity from 800 Pa·s to 1900 Pa·s, and a melt strength from 30 cN to 80 cN. 1. A branched polymer , which is a transesterification product of a composition , wherein the composition comprises 100 parts by weight of polyethylene terephthalate and 0.5-2 parts by weight of polyol , wherein the branched polymer has an inherent viscosity of from 1.2 dL/g to 1.6 dL/g , a number average molecular weight of from 75 ,000 g/mol to 90 ,000 g/mol , a polydispersity index from 3.0 to 6.0 , a melt index from 0.8 g/10 min to 7.5 g/10 min , a shear viscosity from 800 Pa·s to 1900 Pa·s , and a melt strength from 30 cN to 80 cN.2. The branched polymer as claimed in claim 1 , wherein the polyethylene terephthalate has a number average molecular weight from 30 claim 1 ,000 g/mol to 55 claim 1 ,000 g/mol claim 1 , a polydispersity index from 1.4 to 1.8 claim 1 , and an inherent viscosity from 0.40 dL/g to 0.95 dL/g.3. The branched polymer as claimed in claim 1 , wherein the polyol is polyether polyol having 3-8 hydroxyl groups claim 1 , aliphatic polyol having 3-8 hydroxyl groups claim 1 , or a combination thereof.4. The branched polymer as claimed in claim 1 , wherein the composition does not comprise an organic acid claim 1 , acid anhydride claim 1 , epoxy-group-containing compound claim 1 , or solvent.5. The branched polymer as claimed in claim 1 , wherein the composition further comprises 0.1-0.5 parts by weight of antioxidant.6. The branched polymer as ...

INTEGRATED PROCESS FOR TREATING RECYCLED PET AND PTT MATERIALS

A process for producing a polyester polyol comprising reacting a recycle stream selected from recycled PET carpet, carpet fiber, containers, textiles, articles or mixtures thereof, with a glycol in a reactor, thereby forming a digested product stream comprising polyols, and an undigested stream; and then reacting the digested product stream with a hydrophobe selected from dimer fatty acids, trimer fatty acids, oleic acid, ricinoleic acid, tung oil, corn oil, canola oil, soybean oil, sunflower oil, bacterial oil, yeast oil, algae oil, castor oil, triglycerides or alkyl carboxylate esters having saturated or unsaturated C-Cfatty acid units, saturated or unsaturated C-Cfatty acids, alkoxylated castor oil, saturated or unsaturated C-Cdicarboxylic acids or diols, cardanol-based products, recycled cooking oil, branched or linear C-Cfatty alcohols, hydroxy-functional materials derived from epoxidized, ozonized, or hydroformylated fatty esters or acids, or mixtures thereof. 129.-. (canceled)30. A process comprising:(a) reacting a recycle stream comprising recycled carpet selected from PTT carpet, PET carpet or mixtures thereof, with a glycol in a reactor, thereby forming a completely digested product stream comprising polyols, and at least one undigested stream;(b) separating the completely digested product stream from the undigested stream, thereby forming a separated digested product stream and a separated undigested product stream; and{'sub': 6', '36', '6', '36', '9', '18', '6', '36, '(b) reacting the separated digested product stream in the reactor with a hydrophobe selected from dimer fatty acids, trimer fatty acids, oleic acid, ricinoleic acid, tung oil, corn oil, canola oil, soybean oil, sunflower oil, bacterial oil, yeast oil, algae oil, castor oil, triglycerides or alkyl carboxylate esters having saturated or unsaturated C-Cfatty acid units, saturated or unsaturated C-Cfatty acids, alkoxylated castor oil, saturated or unsaturated C-Cdicarboxylic acids, cardanol- ...

COMPOSITION THAT CONTAINS POLYLYSINE ANALOG AND PROMOTES CELL GROWTH

The present invention provides a composition for promoting cell proliferation containing polylysine in which at least one amino group is mono-substituted by dicarboxylic acid. 1. A composition for promoting cell proliferation , comprising at least one polylysine in which at least one amino group is mono-substituted by a dicarboxylic acid.2. The composition according to claim 1 , wherein said dicarboxylic acid is one or more kinds.3. The composition according to claim 1 , wherein said at least one polylysine is ϵ-poly-L-lysine or α-poly-L-lysine.5. The composition according to claim 4 , wherein said dicarboxylic acid is one or more kinds selected from the group consisting of succinic acid claim 4 , glutaric acid claim 4 , diglycolic acid claim 4 , thiodiglycolic acid claim 4 , maleic acid claim 4 , and citraconic acid.6. The composition according to claim 1 , wherein an introduction rate of said dicarboxylic acid into said amino group in said polylysine is 10 mol % to 100 mol %.7. A medium for cell culture claim 1 , comprising a composition according to .8. A method for promoting cell proliferation claim 7 , comprising culturing a cell in a medium according to .9. The method according to claim 8 , wherein said cell is a stem cell.10. The method according to claim 9 , wherein said stem cell is a pluripotent stem cell.11. The method according to claim 10 , wherein said pluripotent stem cell is an induced pluripotent stem cell (iPS cell).12. The method according to claim 8 , wherein said at least one dicarboxylic acid is one or more kinds.13. The method according to claim 8 , wherein said at least one polylysine is ϵ-poly-L-lysine or α-poly-L-lysine.15. The method according to claim 14 , wherein said at least one dicarboxylic acid is one or more kinds selected from the group consisting of succinic acid claim 14 , glutaric acid claim 14 , diglycolic acid claim 14 , thiodiglycolic acid claim 14 , maleic acid claim 14 , and citraconic acid.16. The method according to claim ...

RING-OPENING POLYMERIZATIONS USING A FLOW REACTOR

Techniques regarding the synthesis of polyesters and/or polycarbonates through one or more ring-opening polymerizations conducted within a flow reactor and facilitated by a urea anion catalyst and/or a thiourea catalyst are provided. For example, one or more embodiments can comprise a method, which can comprise polymerizing, via a ring-opening polymerization within a flow reactor, a cyclic monomer in the presence an organocatalyst comprising a urea anion. 1. A method , comprising:polymerizing, via a ring-opening polymerization within a flow reactor, a cyclic monomer in the presence of an organocatalyst comprising a urea anion.2. The method of claim 1 , wherein the cyclic monomer is selected from a group consisting of a lactone monomer claim 1 , a cyclic carbonate monomer claim 1 , a substituted cyclic carbonate monomer claim 1 , a cyclic phospholane monomer claim 1 , a morpholinone monomer claim 1 , tetrahydro-2H-pyran-2-thione claim 1 , oxepane-2-thione claim 1 , tetrahydrothiopyranone claim 1 , and 2-thiepanone.3. The method of claim 2 , wherein the organocatalyst is derived from a chemical compound selected from a second group consisting of 1 claim 2 ,3-bis[3 claim 2 ,5-bis(trifluoromethyl)phenyl]urea claim 2 , 1-[3 claim 2 ,5-bis(trifluoromethyl)phenyl]-3-[2-(trifluoromethyl)phenyl]urea claim 2 , 1-[3 claim 2 ,5-bis(trifluoromethyl)phenyl]-3-phenylurea claim 2 , 1-[3 claim 2 ,5-bis(trifluoromethyl)phenyl]-3-cyclohexylurea claim 2 , 1-phenyl-3-[3-(trifluoromethyl)phenyl]urea claim 2 , 1 claim 2 ,3-diphenylurea claim 2 , and 1-cyclohexyl-3-phenylurea.4. The method of claim 3 , wherein the urea anion is derived from a chemical reaction between the chemical compound and a chemical base claim 3 , wherein the chemical base is selected from a third group consisting of 1 claim 3 ,8-diazabicyclo[5.4.0[undec-7-ene claim 3 , 7-methyl-] claim 3 ,5 claim 3 ,7-triazabicyclo[4.4.0]dec-5-ene claim 3 , phosphazene bases claim 3 , ] claim 3 ,3 claim 3 ,2-diazaphosphorin-2-amin ...

FUNCTIONALIZATION OF POLYMER SCAFFOLDS

The disclosure provides a method of preparing a polymer scaffold including admixing a biotinylated reagent and a polymer to form a biotinylated polymer, subjecting the biotinylated polymer to conditions sufficient to form the polymer scaffold and optionally admixing the polymer scaffold with a streptavidin-modified biomolecule to form a biomolecule-modified polymer scaffold. The disclosure further provides a method of preparing a polymer scaffold including admixing a first click chemistry reagent and a poly(lactic-co-glycolic acid) (PLGA) polymer to form a modified PLGA polymer, subjecting the modified PLGA polymer to conditions sufficient to form the polymer scaffold, and optionally admixing the polymer scaffold with a biomolecule modified to include a second click chemistry reagent that selectively reacts with the first click chemistry reagent, to form a biomolecule-modified polymer scaffold. 1. A method of preparing a polymer scaffold , comprising:admixing a biotinylated reagent and a polymer to form a biotinylated polymer;subjecting the biotinylated polymer to conditions sufficient to form the polymer scaffold; and optionallyadmixing the polymer scaffold with a streptavidin-modified biomolecule to form a biomolecule-modified polymer scaffold.2. The method of claim 1 , wherein the biotinylated reagent comprises a biotinylated poly(ethylene glycol) (PEG) amine.3. The method of or claim 1 , wherein the polymer is selected from the group consisting of poly(lactic-co-glycolic acid) claim 1 , poly(lactic acid) claim 1 , poly(glycolic acid) claim 1 , poly(ethylene glycol) claim 1 , polycaprolactone claim 1 , alginate claim 1 , collagen claim 1 , poly(amino acids) claim 1 , and a combination thereof.4. The method of any one of the preceding claims claim 1 , wherein the polymer is activated to react with the biotinylated reagent.5. The method of claim 4 , wherein the polymer is an activated poly(lactic-co-glycolic acid).6. The method of any one of the preceding claims ...

Process for making starch resin copolymer

A process for making a starch-resin copolymer is described, the process comprising: mixing at least one of a dicarboxylic acid and a dicarboxylic acid anhydride with a starch to yield a starch mixture; adding a liquid mixture including water and a polyol to the starch mixture to produce a functionalized starch; and mixing the functionalized starch with a resin to produce the starch-resin copolymer, wherein the starch used in the process has a low moisture content in comparison with the moisture content of starch used in current processes. Starch-resin copolymers produced by the present process can be biodegradable and compostable.

OXYGEN-ABSORBING RESIN COMPOSITION AND OXYGEN-ABSORBING MULTILAYER INJECTION-MOLDED ARTICLE AND OXYGEN-ABSORBING MULTILAYER CONTAINER USING SAME

An oxygen-absorbing resin composition containing a polyester compound and a transition metal catalyst, wherein the polyester compound has at least one constituent unit having a tetralin ring selected from the group consisting of constituent units represented by general formulas (1) to (4) and wherein the polyester compound is a polyester compound having a tetralin ring obtained by synthesis using a zinc compound.

A Process to Prepare a Cyclic Oligomer and a Cyclic Oligomer Obtainable Thereby

A process to prepare a cyclic polyester oligomer composition comprising a cyclic polyester oligomer having furanic units is disclosed. The process comprises the step of reacting a monomer component in the presence of an optional catalyst and/or optional organic base in a ring closing oligomerization step under conditions of a reaction temperature and reaction time sufficient to yield a cyclic polyester oligomer having furanic units. The invention further relates to a cyclic polyester oligomer composition obtainable by said process, wherein the cyclic polyester oligomer composition comprises a cyclic polyester oligomer of structure Y1 or Y2 having furanic units, wherein the composition contains less than 5%, preferably 3, most preferably 1 weight % of linear oligomeric polyester species in the composition. The present invention further relates also to the use of said cyclic polyester oligomer composition in the production of a polyester polymer.

SALEN INDIUM CATALYSTS AND METHODS OF MANUFACTURE AND USE THEREOF

The present application provides salen indium catalysts of the following general structure 127.-. (canceled)31. The complex of claim 28 , wherein at least one Ris an optionally substituted Calkyl claim 28 , an optionally substituted aryl claim 28 , an optionally substituted C-Ccyclic alkyl claim 28 , or Si(aryl); Ris H and Ris Calkyl. each Ris H claim 28 , Calkyl claim 28 , Ris H and Ris Calkyl.32. The complex of claim 28 , wherein Ris chiral and enantiomerically enriched claim 28 , or wherein Ris chiral and racemic or wherein Ris achiral.33. complex of claim 32 , wherein the stereochemistry of Ris (R claim 32 ,R).37. The method of claim 36 , wherein when a combination of two or more cyclic ester monomers are polymerized claim 36 , the different monomers are polymerized simultaneously or sequentially.38. The method of claim 36 , wherein the cyclic ester monomer is a lactide and the polymerization product is a polylactic acid.39. The method of claim 38 , wherein the lactide is L-lactide claim 38 , D-lactide claim 38 , meso-lactide claim 38 , rac-lactide claim 38 , a non-equal mixture of L and D lactides claim 38 , or a mixture of L claim 38 , D claim 38 , and meso-lactides.40. The method of claim 38 , wherein the polylactic acid is isotactically enriched.41. The method of claim 40 , wherein the isotactic enrichment is between about 0.6 and about 1.0 claim 40 , or between about 0.7 and about 1.0.42. The method of claim 38 , wherein the polylactic acid has a polydispersity index of less than about 2.0 claim 38 , or less than about 1.7 claim 38 , or less than about 1.5.43. The method of claim 38 , wherein the polylactic acid has a molecular weight of greater than about 300 claim 38 , or greater than about 10 claim 38 ,000 claim 38 , or from about 300 to about 10 claim 38 ,000 claim 38 ,000 claim 38 , or from about 10 claim 38 ,000 to about 1 claim 38 ,000 claim 38 ,000 claim 38 , or claim 38 , more particularly claim 38 , from about 20 claim 38 ,000 to about 150 claim ...

Anhydride End-Capping of Polymers

The disclosure describes a neat, one-pot scheme for reacting a hydroxyl propagating end of a polymer with a cyclic acid anhydride to form a free acid terminus. 2. The process of claim 1 , wherein the cyclic acid anhydride is selected from the group consisting of phthalic anhydride claim 1 , trimellitic anhydride claim 1 , maleic anhydride claim 1 , hexahydrophthalic anhydride claim 1 , glutaric anhydride claim 1 , itaconic anhydride claim 1 , methylhexahydrophthalic anhydride claim 1 , methyltetrahydrophthalic anhydride claim 1 , tetrahydrophthalic anhydride claim 1 , tetrachlorophthalic anhydride claim 1 , pyromellitic dianhydride claim 1 , humic anhydride claim 1 , succinic anhydride claim 1 , tetrabromophthalic anhydride claim 1 , dodecenylsuccinic anhydride claim 1 , and chlorendic anhydride.3. The process of claim 1 , wherein the at least one catalyst comprises two components of a nucleophilic transesterification system.4. The process of claim 3 , wherein the at least one catalyst comprises 4-(dimethylamino)pyridine (DMAP) and DMAP:HX claim 3 , wherein HX is selected from the group consisting of HCl claim 3 , HBr claim 3 , sulfuric acid claim 3 , nitric acid claim 3 , phosphoric acid claim 3 , formic acid claim 3 , acetic acid claim 3 , trifluoroacetic acid claim 3 , trichloroacetic acid claim 3 , triflic acid claim 3 , and combinations thereof.5. The process of claim 4 , wherein HX comprises DMAP:HOSCF.6. The process of claim 1 , wherein the at least one optional initiator comprises a monoalcohol.7. The process of claim 1 , wherein the at least one optional initiator is selected from the group consisting of hexanol claim 1 , methyl alcohol claim 1 , ethyl alcohol claim 1 , propyl alcohol claim 1 , allyl alcohol claim 1 , cyclo-hexanol claim 1 , furfuryl alcohol claim 1 , benzyl alcohol claim 1 , trifluoroethanol claim 1 , heptafluorobutanol claim 1 , heptadecylfluorooctanol claim 1 , pentafluoropropanol claim 1 , pentafluorobutanol claim 1 , nonafluorohexanol ...

PURIFICATION OF FUNCTIONALIZED TRIBLOCK COPOLYMERS VIA METHANOL TRITURATION

A method of making a pure block copolymer includes forming a crude block copolymer; heating a solution of the crude block copolymer and alcohol; and cooling the solution to promote precipitation of a purified block copolymer, wherein an amount of impurities remaining in the purified block copolymer is from about 0 to about 5 wt % based on a total weight of the purified block copolymer; a ratio of a polydispersity index of the crude block copolymer to a polydispersity index of the purified block copolymer is from about 1.02 to about 1.25; a ratio of a molecular weight of the crude block copolymer to a molecular weight of the purified block copolymer is from about 0.75 to about 1.0; and a ratio of a number average molecular weight of the crude block copolymer to a number average molecular weight of the purified block copolymer is from about 0.65 to about 1. 2. (canceled)3. (Canceled)4. (Canceled)5. The method of claim 1 , wherein the block copolymer is a functionalized block copolymer of a polyester/polycarbonate hybrid.6. The method of claim 5 , wherein the block copolymer is a polycaprolactone-b-polycarbonate-b-polylactide block copolymer.7. The method of claim 1 , wherein the alcohol is methanol.8. The method of claim 1 , wherein the solution is heated to a temperature of from about 50° C. to about 120° C.9. The method of claim 1 , wherein the solution is cooled to a temperature of from about −30° C. to about 10° C.11. The method of claim 10 , wherein forming the crude block copolymer comprises a one-pot claim 10 , organocatalytic claim 10 , neat ring-opening polymerization.12. The method of further comprising polymerizing the mixture to form a block copolymer claim 11 , wherein the polymerization comprises:sequentially adding monomers to a reactor to form a mixture;capping the mixture with succinic anhydride; andcooling the mixture to room temperature to form the crude block copolymer.13. The method of claim 12 , wherein sequentially adding monomers comprises: ...

Composite film and method for manufacturing the same, and organic light-emitting diode and method for packaging the same

The present disclosure discloses a composite film and a method for manufacturing the same, and an organic light-emitting diode and a method for packaging the same. The composite film comprises: a base membrane; a PDDA layer, which is deposited on a first surface of the base membrane; a graphite oxide layer, which is deposited on the PDDA layer; a monomolecular layer, which is self-assembled on a surface of the graphite oxide layer and is composed of a compound of Formula I. The method for manufacturing the composite film comprises a self-assembling step which includes placing and soaking a base membrane deposited with a graphite oxide layer in a solution of a compound of Formula I, and self-assembling the compound of Formula I on the graphite oxide layer.

Temperature-Responsive Polymer Compositions and Methods of Use

Embodiments of the invention include polymeric compounds that comprise a co-polymer microgel at least one bioactive agent, pharmaceutical compounds comprising compounds of the present invention, and methods for treating damaged tissue to a patient in need thereof by administering by injection an effect amount of the composition. 1. A polymeric compound a co-polymer microgel at least one bioactive agent.2. The compound of claim 1 , wherein the microgel comprises monomethoxypoly(ethylene glycol)-co-poly(ε-caprolactone) (mPEG-PCL).3. The compound of claim 1 , wherein the mPEG is about 750 Da.4. The compound of claim 1 , wherein the microgel comprises about 21% PEG-b-79% PCL.5. The compound of claim 1 , wherein bioactive agent is at least one pro-angiogenic peptide and at least one anti-inflammatory peptide.6. The compound of claim 5 , wherein the pro-angiogenic peptide is C16 and the anti-inflammatory peptide is Ac-SDKP.8. The compound of claim 7 , wherein the bioactive agent is at least one pro-angiogenic peptide and at least one anti-inflammatory peptide.9. The compound of claim 7 , wherein the bioactive agent selectively binds to fibrous tissue.10. The compound of claim 7 , wherein the bioactive agent includes a decorin-derived functional peptide.11. The compound of claim 1 , wherein the composition includes a transition temperature of about 20° C. to about 50° C.12. The compound of claim 11 , wherein the transition temperature is about mammalian body temperature.13. The compound of claim 1 , wherein the bioactive agent is at least one cell.14. The compound of claim 13 , wherein the at least one cell are stem cells.15. A composition comprising a polymeric compound and a pharmaceutically acceptable carrier claim 13 , wherein the polymeric compound comprises a polymer microgel at least one bioactive agent.17. The composition of claim 1 , wherein the composition includes a transition temperature of about 20° C. to about 50° C.18. The composition of claim 17 , wherein ...

HIGHLY ELASTIC POLYESTER MODIFIED URETHANE RESIN AND CLEAR COAT COMPOSITION CONTAINING SAME

Embodiments relate to a highly elastic polyester modified urethane resin and a clear coat composition containing the same, and more particularly, to a highly elastic polyester modified urethane resin having improved chipping resistance by introducing an aliphatic isocyanate and a caprolactone polyol to a polyester resin, and a clear coat composition including the polyester modified urethane resin as a main resin. For example, there is provided a polyester modified urethane resin, including polyester derived units obtained from an aliphatic polyalcohol and an aliphatic or alicyclic polyacid, caprolactone polyol derived units; and aliphatic diisocyanate derived units, as resin constituting units. 1. A polyester modified urethane resin , comprising:polyester derived units obtained from an aliphatic polyalcohol and an aliphatic or alicyclic polyacid;caprolactone polyol derived units; andaliphatic diisocyanate derived units, as resin constituting units.2. The polyester modified urethane resin of claim 1 , wherein the aliphatic polyalcohol is at least one kind of aliphatic compound having 3 to 12 carbon atoms and at least two hydroxyl groups.3. The polyester modified urethane resin of claim 1 , wherein the aliphatic polyalcohol is selected from propanediol claim 1 , butanediol claim 1 , neopentyl glycol claim 1 , trimethylol propane and a combination thereof.4. The polyester modified urethane resin of claim 1 , wherein the aliphatic or alicyclic polyacid is at least one aliphatic polyacid having 3 to 12 carbon atoms and at least two carboxylic acid groups claim 1 , at least one alicyclic polyacid having 5 to 12 carbon atoms and at least two carboxylic acid groups claim 1 , or a mixture thereof.5. The polyester modified urethane resin of claim 1 , wherein the aliphatic or alicyclic polyacid is selected from hexane dicarboxylic acid claim 1 , cyclohexyl dicarboxylic acid claim 1 , and a combination thereof.6. The polyester modified urethane resin of claim 1 , wherein the ...

Compositions and methods for converting styrene to biodegradable alternatives

Provided are nucleic acids and vectors that collectively encode various gene products related to converting styrene to polyhydroxybutyrate (PHB). In some embodiments, the nucleic acids and vectors collectively encode a styrene monooxygenase polypeptide, a flavin reductase polypeptide, a styrene-oxide isomerase polypeptide, and a phenylacetaldehyde dehydrogenase polypeptide, an acetyl-CoA C-acetyltransferase polypeptide, a 3-ketoacyl-ACP reductase polypeptide, a class I poly(R)-hydroxyalkanoic acid synthase polypeptide, and optionally an influx porin polypeptide. Also provided are systems and methods for producing PHB from styrene, methods and systems for remediating polystyrene waste. In some embodiments, the systems are in vivo systems.

METHOD FOR PREPARING FULLY-DEGRADABLE NON-WOVEN FABRIC BY SPUN-BONDING

Disclosed is a method for preparing a fully-degradable non-woven fabric by spun-bonding, including: (S1) preparation of a poly(caprolactone-co-lactide acid) (P(CL-co-LA)); (S2) preparation of a copolymerized-modified poly(lactide acid) (PLA); and (S3) preparation of a full-degradable non-woven fabric using a spun-bond method. In this disclosure, the PLA is modified in gradient several times to prepare the full-degradable non-woven fabric in combination with an optimized spun-bonding method. 1. A method for preparing a fully-degradable non-woven fabric by spun-bonding , comprising:(S1) adding lactic acid (L-LA) and ε-caprolactone (ε-CL) into a reactor to obtain a reaction system, wherein a weight ratio of the L-LA to the ε-CL is 1:(2-4);adding a catalyst to the reaction system followed by reaction at 130-140° C. under vacuum for 18-24 h to obtain a crude copolymerization product; wherein the catalyst is 0.1-0.2% of a total weight of the reaction system; andpurifying the crude copolymerization product to obtain a caprolactone-lactic acid random copolymer P(CL-co-LA);(S2) drying polylactic acid (PLA), wherein a melt index of the PLA at 210° C. is 20-40 g/10 min;mixing a dried PLA and the (P(CL-co-LA)) uniformly followed by melt blending at 150-160° C. under a rotation speed of 100-120 r/min to obtain a blend, wherein a weight ratio of the dried PLA to the (P(CL-co-LA)) is (10-50):1, and the melt blending is performed for 5-10 min; andsubjecting the blend to compression molding at 180-190° C. and 8-10 MPa to obtain a copolymerized modified PLA; and{'sub': 2', '2, '(S3) subjecting the copolymerized modified PLA, poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV), nano-SiO, a compatibilizer and a chain extender to blending to obtain a melt-blown blend, wherein a weight ratio of the copolymerized modified PLA to the PHBV to the nano-SiOto the compatibilizer to the chain extender is (70-85):(1-3):(0.2-0.3):(0.005-0.01):(0.001-0.005);'}feeding the melt-blown blend to a ...

Methods and Compositions for Preparing Particle Boards

An amorphous polylactic acid polymer having a weight average molecular weight in the range of about 35,000 to 180,000 is described. The polylactic acid polymer composition can be hammer milled without cryogenics result in the form of particles wherein 90% of the particles have particle size of about 250 μm or less and the material has a glass transition temperature of between about 55° C. to about 58° C. and a relative viscosity of about 1.45 to about 1.95 centipoise. The polymer composition can be used to form an aqueous suspension. The material is ideally suited for use in preparing particleboard. A method is disclosed for preparing such polylactic acid polymers. The method involves obtaining an amorphous polylactic acid polymer having a weight average molecular weight of between about 115,000 to about 180,000. Treating the polylactic acid polymer to reduce the molecular weight to between about 35,000 to 45,000 such that it has a glass transition temperature of between about 55° C. and 58° C. and a relative viscosity of about 1.45 to about 1.95. Material can be formed into particles in a commercial hammer mill with bypass such that 90% of the initial mass results in the particles which can pass thru a sieve having a pore size of about 250 μm. During particle board formation the temperature of around 140-140 C being reached to optimally activate the adhesive; Bond strengths and throughput rates of resulting particle boards can be controlled thereafter, with variable combination of particle sizes, adhesive loading and initial moisture content. 1. A polylactic acid polymer composition comprising an amorphous polylactic acid polymer having a weight average molecular weight in the range of about 35 ,000 to 180 ,000 , wherein the material has a particle size sufficient to pass through a sieve having a pore size of about 250 μm or less , wherein the material has a glass transition temperature of between about 55° C. to about 58° C. , and the relative viscosity of the ...

Polyglycolic acid support material for additive manufacturing systems

A support material for use in an additive manufacturing system, which compositionally includes a polyglycolic acid polymer, which is at least partially soluble in an aqueous solution, and which is configured for use in the additive manufacturing system for printing a support structure in coordination with printing of a three-dimensional part.

COMPOSITION FOR FORMING HIGHLY ADHESIVE RESIST UNDERLAYER FILM

A composition for forming a resist underlayer film for lithography, including a polymer having a repeating structural unit of Formula (1): 6. The composition for forming a resist underlayer film for lithography according to claim 1 , further comprising a crosslinking agent and a crosslinking catalyst.7. A method for fabricating a semiconductor device claim 1 , the method comprising:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'coating a substrate having a subject film with the composition for forming a resist underlayer film according to , baking the composition to form a resist underlayer film, coating the resist underlayer film with a resist, applying radiation selected from the group consisting of a KrF excimer laser, an ArF excimer laser, extreme ultraviolet light, and an electron beam to the resist-coated substrate, performing development to form a resist pattern, and patterning the subject film by dry etching using the resist pattern as a mask.'} The present invention relates to a composition for forming a resist underlayer film which has improved adhesion to a resist, in a lithography process, and which is useful for forming a desired resist pattern on the resist underlayer film. The present invention also relates to a method for fabricating a semiconductor device including the composition.In ArF immersion lithography and extreme ultraviolet (EUV) lithography, finer widths of resist lines have been desired. When fine resist patterns are formed, the area at which the resist patterns are in contact with a base substrate is small to make the aspect ratio (resist height/resist line width) high, which raises concerns for the tendency of the resist patterns to collapse. Because of this, a resist underlayer film (an anti-reflective coating) in contact with a resist is required to be highly adhesive to the resist so that resist patterns do not collapse.Patent Document 1 describes that, in order to make a resist underlayer film highly adhesive to a resist, the ...

Polyester Quaternary Salt and Compositions Thereof

The invention relates to a composition containing a particulate solid; an organic medium; and a quaternised polyester salt which comprises a product obtained/obtainable by reaction of (i) a polyester containing a tertiary amino group; and (ii) a quaternising agent suitable for converting the tertiary amino group to a quaternary nitrogen, wherein the quaternising agent is a hydrocarbyl epoxide in combination with an acid, or mixtures thereof. The invention further relates to the use of the product as a dispersant. The invention further relates to the use of the dispersant in media, such as inks, mill bases, plastics and paints.

Dispersing resins

The present invention relates to innovative dispersing resins, to their preparation and to their use for dispersing solids.

Crosslinkable Composition and Method of Producing the Same

The instant invention provides crosslinkable compositions, and method of producing the same. The non-aqueous single phase crosslinkable composition comprises: (a) a polyol having an average of 2 or more hydroxyl functional groups; (b) polyaldehyde, or acetal or hemiacetal thereof; and (c) an acid catalyst having pK of less than 6; and (d) optionally one or more organic solvents. 1. A non-aqueous single phase crosslinkable composition comprising:a. a polyol having an average of 2 or more hydroxyl functional groups, and wherein the polyol and wherein the polyol is an acrylic, styrene-acrylic, styrene-butadiene, saturated polyester, urethane, alkyd, polyether or polycarbonate;b. a polyaldehyde; andc. an acid catalyst having pKa of less than 6; andd. optionally one or more organic solvents.2. The crosslinkable composition of claim 1 , wherein said crosslinkable composition is capable of reacting to cure at a temperature of from 0° C. to less than 120° C. to form a crosslinked composition.3. (canceled)4. The crosslinkable composition of claim 1 , wherein the polyol comprises one or more additional crosslinking functional groups.5. The crosslinkable composition of claim 4 , wherein the one or more additional crosslinking functional groups are capable of being crosslinked with the polyaldehyde.6. (canceled)7. The crosslinkable composition of claim 1 , wherein the polyaldehyde has from 2 to 20 carbon atoms.8. The crosslinkable composition of claim 1 , wherein the polyaldehyde thereof has greater than 20 carbon atoms claim 1 , with the proviso that the polyaldehyde thereof has at least one aldehyde group for at least every 10 carbon atoms.9. The crosslinkable composition of claim 1 , wherein the polyaldehyde is selected from the group consisting of (cis claim 1 ,trans)-1 claim 1 ,4-cyclohexanedicarboxyaldehydes claim 1 , (cis claim 1 ,trans)-1 claim 1 ,3-cyclohexanedicarboxyaldehydes claim 1 , pentane-1 claim 1 ,5-dial claim 1 , ethane-1 claim 1 ,2-dial claim 1 , and ...