Poly(butylene terephthalate) composition, preparation method, and products thereof

A kind of technology of butylene terephthalate and ethylene terephthalate, applied in the field of polymer compositions

Inactive Publication Date: 2011-12-28
SABIC INNOVATIVE PLASTICS IP BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, obtaining modified PBT compositions with desirable mechanical, thermal, and optical properties remains a challenge, especially when minor polymer components and / or impurities present in PET are not separated out prior to the conversion of PET to PBT

Method used

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  • Poly(butylene terephthalate) composition, preparation method, and products thereof
  • Poly(butylene terephthalate) composition, preparation method, and products thereof
  • Poly(butylene terephthalate) composition, preparation method, and products thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-8

[0172] Examples 1-8. Molding compositions of modified PBT copolymers containing PVC

[0173] As shown below, Examples 1-8 illustrate the properties of the modified PBT copolymer composition:

Embodiment 1

[0174] Example 1: Modified PBT made from PET containing 115 ppm PVC.

Embodiment 2

[0175] Example 2: Modified PBT made from PET containing 287 ppm PVC.

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Abstract

A composition comprising the following substances based on the total weight of the composition: 5 to 90wt.% modified poly(butylene terephthalate) copolymer, wherein (i) the modified poly(terephthalate) Butylene phthalate) copolymers derived from a first polymer comprising a poly(ethylene terephthalate) component in the presence of a second polymer, the poly(ethylene terephthalate) ) component is poly(ethylene terephthalate) homopolymer, poly(ethylene terephthalate) copolymer, or a combination thereof, and the second polymer is polyvinyl chloride, polyvinylidene Vinyl chloride, polyamide, polylactic acid, or combinations thereof, and (ii) said modified poly(butylene terephthalate) copolymer comprising: (a) at least one poly(ethylene terephthalate) alcohol ester) component, and (b) a member selected from the group consisting of: (a) at least one second polymer that is polyvinyl chloride, polyvinylidene chloride, polyamide, poly Lactic acid, or a combination thereof, (b) at least one residue derived from a second polymer, and (c) a combination thereof.

Description

Background of the invention [0001] The present invention relates to poly(butylene terephthalate) compositions, methods of preparation, and articles thereof. [0002] Thermoplastic molding compositions based on poly(butylene terephthalate) (PBT) are used in a variety of applications. While useful to many users, conventional PBT molding compositions generally cannot be made from PBT from recycled sources because of the unavailability of large quantities of post-consumer or post-industrial supplies of PBT waste material . Unlike PBT, poly(ethylene terephthalate) (PET) is produced in much larger quantities and is therefore easier to recycle from consumer waste. [0003] The increasing need to conserve non-renewable resources and more efficiently recycle underutilized waste PET has led to increased interest in incorporating PBT made from waste PET, known as modified PBT, into materials. However, obtaining modified PBT compositions with desirable mechanical, thermal, and optical ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G63/183C08G63/89C08J11/24
CPCC08L27/18C08L67/04C08L77/00C08L69/00C08K5/0066C08K3/0033C08L77/02C08L67/02C08L27/06C08K3/013C08L2666/02
Inventor 克里斯滕.科胡恩-布里斯特
Owner SABIC INNOVATIVE PLASTICS IP BV
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