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

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

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, modifying 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 before PET is converted 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

[0166] Examples 1-8. Molding compositions of modified PBT copolymers containing PVC

[0167] As shown below, Examples 1-8 illustrate the properties of the modified PBT copolymer composition:

Embodiment 1

[0168] Example 1: Modified PBT made from PET containing 115 ppm PVC.

Embodiment 2

[0169] Example 2: Modified PBT made from PET containing 287 ppm PVC.

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Abstract

A composition comprising: 5-90wt.% modified poly(butylene terephthalate) copolymer, wherein (i) the modified poly(butylene terephthalate) copolymer Derived from a first polymer comprising a poly(ethylene terephthalate) component in the presence of a second polymer selected from the group consisting of poly(ethylene terephthalate) (ethylene glycol formate) homopolymer, poly(ethylene terephthalate) copolymer, and combinations thereof, the second polymer being selected from the group consisting of polyvinyl chloride, polyvinylidene chloride, polyamide, polylactic acid , and combinations thereof, and wherein (ii) said modified poly(butylene terephthalate) copolymer comprises the residue of at least one poly(ethylene terephthalate) component and selected from The second polymer, residues derived from the second polymer, and combinations thereof; 5 to 90 wt.% of the polycarbonate component; at least 1 wt.% of the impact modifier component, the second The polymer is selected from polyvinyl chloride, polyvinylidene chloride, polyamide, polylactic acid, and combinations 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, modifying PBT compositions with desirable mechanical, thermal and optical properties...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L69/00
CPCC08L23/16C08L67/04C08L67/02C08L27/08C08L69/00C08L55/02C08L77/02C08L51/04C08L27/06C08L2666/02C08L67/03C08L67/08C08G63/91
Inventor 克里斯滕.科胡恩-布里斯特
Owner SABIC INNOVATIVE PLASTICS IP BV
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