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公开(公告)号：US11534508B2
公开(公告)日：2022-12-27
申请号：US16483972
申请日：2018-02-06
发明人： Fumihiro Ito , Satoshi Okada
IPC分类号： B32B1/02 , A61L2/08 , B32B27/08 , B32B27/32 , B32B27/36 , B65D65/40 , B65D81/26 , C08G63/199 , C08G63/88 , B65B55/06 , B65B55/02 , B65B55/08 , B65B55/04 , B32B38/00
摘要： A method for producing a sterilized oxygen-absorbing multilayer body is provided. The method may include:
irradiating with radiation an oxygen-absorbing multilayer body comprising at least an oxygen-absorbing layer containing a transition metal catalyst and a thermoplastic resin (a) having a tetralin ring as a structural unit and a layer containing a thermoplastic resin (b); and
heating the oxygen-absorbing multilayer body which has been irradiated with radiation in the sterilizing step at a temperature of the glass transition temperature of the thermoplastic resin (a) minus 20° C. or more and lower than the glass transition temperature of the thermoplastic resin (a) for 50 hours or more.-
公开(公告)号：US20210023739A1
公开(公告)日：2021-01-28
申请号：US17066544
申请日：2020-10-09
摘要： 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.
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3.发明授权公开(公告)号：US10414878B2
公开(公告)日：2019-09-17
申请号：US15877102
申请日：2018-01-22
摘要： Solid-state shear pulverization of semi-crystalline polymers and copolymers thereof and related methods for enhanced crystallization kinetics and physical/mechanical properties.
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公开(公告)号：US20190031827A1
公开(公告)日：2019-01-31
申请号：US15755783
申请日：2016-07-14
发明人： Kayoko Onda
CPC分类号： C08G63/88 , C08G63/183 , C08J3/203 , C08J2367/02 , C08K3/32 , C08K5/06 , C08K5/09 , C08K5/521 , C08K5/55 , C08K2201/019 , C08L67/02 , F21S41/37
摘要： A method for reducing outgassing of a polyester composed of repeat units derived from 1,4-butanediol is melt blending the polyester with 0.2 to 2 weight percent water, based on the weight of the polyester. In addition to water, the polyester can also be blended with 0.01 to 0.5 weight percent of a quencher. The method results in formation of a polyester composition which exhibits reduced outgassing, and is suitable for molding into articles, for example an automotive headlight reflector or bezel.
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公开(公告)号：US10125216B2
公开(公告)日：2018-11-13
申请号：US15304644
申请日：2015-04-30
IPC分类号： C08G63/672 , C08G63/66 , C08G63/80 , C08G63/78 , C08G63/88
摘要： Semi-crystalline polyesters from isoidide and 2,5-furandicarboxylic acid are disclosed, as well as semi-crystalline copolyesters from isoidide and a minor amount of either 1,4-butanediol or 2,3-butanediol with 2,5-furandicarboxylic acid, together with processes for making high molecular weight materials by melt polymerization providing a semi-crystalline polymer then performing solid state condensation on the semi-crystalline polymer.
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公开(公告)号：US10072119B2
公开(公告)日：2018-09-11
申请号：US15123804
申请日：2015-03-11
发明人： Jeffrey John Kolstad , Gerardus Johannes Maria Gruter , Matheus Adrianus Dam , Jesper Gabriël van Berkel , Robert Joseph Schiavone , Marion L. Andrews
IPC分类号： C08G63/88 , C08G63/181 , C08G63/80 , C08G63/16 , C08G63/86
CPC分类号： C08G63/88 , C08G63/16 , C08G63/181 , C08G63/80 , C08G63/866
摘要： The molecular weight of a semi-crystalline starting polyester comprising ethylene 2,5-furandicarboxylate units is enhanced by heating the semi-crystalline starting polyester, having a melting point Tm, at a temperature in the range of (Tm-40° C.) to Tm to obtain a solid stated polyester, where the semi-crystalline starting polyester has an intrinsic viscosity of at least 0.45 dL/g, and an amount of carboxylic acid end groups in the range of 15 to 122 meq/kg.
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7.发明申请公开(公告)号：US20180244861A1
公开(公告)日：2018-08-30
申请号：US15877102
申请日：2018-01-22
CPC分类号： C08J3/12 , C08G63/88 , C08J5/18 , C08J2323/06 , C08J2323/12 , C08J2367/02 , C08J2367/04
摘要： Solid-state shear pulverization of semi-crystalline polymers and copolymers thereof and related methods for enhanced crystallization kinetics and physical/mechanical properties.
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公开(公告)号：US20180155494A1
公开(公告)日：2018-06-07
申请号：US15579641
申请日：2016-06-06
CPC分类号： C08G63/88 , B29B9/06 , B29B9/12 , C08G63/08 , C08G63/80 , C08G63/85 , C08J3/12 , C08J2367/04
摘要： The present invention relates to a one step process for the palletization of poly lactic acid of molecular weight in the range of 6-8 lakhs without melt processing such that the pellets obtained exhibit minimal molecular weight reduction. The molecular weight of poly lactic acid (PLA) in the obtained pellets is retained in the range of 6-8 lakhs.
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公开(公告)号：US09631051B2
公开(公告)日：2017-04-25
申请号：US14896769
申请日：2014-06-11
申请人： BASF SE
发明人： Ning Zhu , Achim Stammer , Joachim Clauss , Gad Kory
IPC分类号： C08G69/28 , C08G69/46 , B01J19/00 , C08G69/26 , B01J19/18 , C08F2/00 , C08L77/06 , C08G63/88
CPC分类号： C08G69/46 , B01J19/0026 , B01J19/0066 , B01J19/1887 , B01J2219/00094 , B01J2219/00247 , B01J2219/182 , B01J2219/1948 , C08F2/002 , C08F2/005 , C08G63/88 , C08G69/265 , C08G69/28 , C08L77/06
摘要： An apparatus for synthesis of a polymer with separation of a gaseous substance comprises a reaction space having an essentially circular cylindrical upper section which is bounded by two circular faces and one shell face and has a longitudinal cylinder axis, and a lower section, an inlet orifice disposed in a circular face or the shell face of the upper section, a first outlet orifice disposed in a wall of the lower section, a second outlet orifice disposed in the shell face of the upper section opposite the first outlet orifice, and a removal device which is disposed so as to be rotatable about the longitudinal cylinder axis and is in contact with both circular faces and the shell face. This apparatus can especially be used for performance of a process including the feeding of an oligomer melt into a reaction space through an inlet orifice, the polymerization of the oligomer melt to give a polymer melt, the removal of the polymer melt from the reaction space through a first outlet orifice of the reaction space, and the removal of a gaseous substance from the reaction space through a second outlet orifice of the reaction space, wherein deposits on at least one inner wall of the reaction space are removed by a removal device and transported into the oligomer melt.
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公开(公告)号：US20170015781A1
公开(公告)日：2017-01-19
申请号：US15123804
申请日：2015-03-11
发明人： Jeffrey John Kolstad , Gerardus Johannes Maria Gruter , Matheus Adrianus Dam , Jesper Gabriël van Berkel , Robert Joseph Schiavone , Marion L. Andrews
CPC分类号： C08G63/88 , C08G63/16 , C08G63/181 , C08G63/80 , C08G63/866
摘要： The molecular weight of a semi-crystalline starting polyester comprising ethylene 2,5-furandicarboxylate units is enhanced by heating the semi-crystalline starting polyester, having a melting point Tm, at a temperature in the range of (Tm-40° C.) to Tm to obtain a solid stated polyester, where the semi-crystalline starting polyester has an intrinsic viscosity of at least 0.45 dL/g, and an amount of carboxylic acid end groups in the range of 15 to 122 meq/kg.
摘要翻译： 通过在（Tm-40℃）范围内的温度下加热具有熔点Tm的半结晶起始聚酯来增强包含2,5-呋喃二甲酸乙二酯单元的半结晶起始聚酯的分子量， 以获得固体聚酯，其中半结晶起始聚酯的特性粘度为至少0.45dL / g，羧酸端基量在15至122meq / kg的范围内。
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