Lactide copolymer, a preparation method thereof, and a resin composition including the same

US9062147B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9062147-B2
Application numberUS-201314095647-A
CountryUS
Kind codeB2
Filing dateDec 3, 2013
Priority dateJun 7, 2011
Publication dateJun 23, 2015
Grant dateJun 23, 2015

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  1. Title

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  2. Abstract

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  4. Key dates

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  5. First independent claim

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Abstract

Official abstract text for this publication.

The present invention relates to a lactide copolymer having good flexibility in addition to excellent properties such as mechanical properties and processability and preferably being applicable as a packaging material, a preparation method thereof, and a resin composition including the same. The lactide copolymer includes two or more specific block copolymerized repeating units that the hard segments of polylactide repeating units are connected to both ends of the soft segments of polyether polyol repeating unit, and the block copolymerized repeating units are connected to each other through the intermediation of urethane connecting groups derived from polyvalent isocyanate compound of which the average equivalent of isocyanate group per a molecule is more than 2 and less than 3.

First claim

Opening claim text (preview).

The invention claimed is: 1. A lactide copolymer, including two or more block copolymerized repeating units of Chemical Formula 1 in which hard segments of polylactide repeating units are connected to both ends of soft segments of polyether polyol repeating unit, wherein the block copolymerized repeating units are connected to each other through the intermediation of urethane connecting groups derived from polyvalent isocyanate compound of which the average equivalent of isocyanat…

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What does patent US9062147B2 cover?
The present invention relates to a lactide copolymer having good flexibility in addition to excellent properties such as mechanical properties and processability and preferably being applicable as a packaging material, a preparation method thereof, and a resin composition including the same. The lactide copolymer includes two or more specific block copolymerized repeating units that the hard se…
Who is the assignee on this patent?
Lg Chemical Ltd
What technology area does this patent fall under?
Primary CPC classification C08G63/08. Mapped technology areas include Chemistry & Metallurgy.
When was this patent published?
Publication date Tue Jun 23 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).