Check patentability & draft patents in minutes with Patsnap Eureka AI!

Polymer composition comprising polybutylene terephthalate

A polybutylene terephthalate and polymer technology, applied in the field of polymer compositions, can solve the problems of not providing thin-walled automotive connectors, and achieve the effects of good melt flow properties and high heat distortion temperature

Active Publication Date: 2021-08-17
SABIC GLOBAL TECH BV
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, such polymer compositions do not provide a sufficiently suitable combination of properties required for use in the aforementioned thin-walled automotive connector applications, where particularly good melt flow properties, high heat distortion temperature, high Charpy impact strength are required and high tensile strain at break in combination

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Polymer composition comprising polybutylene terephthalate
  • Polymer composition comprising polybutylene terephthalate
  • Polymer composition comprising polybutylene terephthalate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0073] Relative to the total weight of the polymer composition,

[0074] a. 80.0-90.0% by weight polybutylene terephthalate comprising 70.0-85.0% by weight of a first polybutylene terephthalate having an intrinsic viscosity of 0.70-0.80 dl / g, and 15.0 - 30.0% by weight of a second polybutylene terephthalate having an intrinsic viscosity of 1.15-1.40 dl / g;

[0075] b. 8.5-11.5% by weight glass fibers;

[0076] c. 1.5-5.0% by weight polyethylene, which is a low-density polyethylene, having a determination according to ISO 1183-1 (2012) method A of 918-922 kg / m 3 Density, with a melt mass flow rate of ≥20.0 and ≤25.0g / 10min measured at 190°C under a load of 2.16kg, and a melt mass flow rate of ≥70.0 and ≤85.0g / 10min measured at 190°C under a load of 5.0kg The melt mass flow rate of ; and

[0077] d. 0.1-1.0% by weight talc having a value of D as determined according to ISO 9276-2 (2014) 50 The average particle size of 500-1500nm.

[0078] In yet another embodiment, the present...

Embodiment

[0104] The invention will now be illustrated by the following non-limiting examples.

[0105] A number of samples of polymer compositions were produced using materials as listed in Table I in a 25 mm twin-screw Krupp Werner & Pfleiderer ZSK-25 melt extruder operating at a melt temperature of 260-270°C.

[0106] Table I: Materials

[0107]

[0108]

[0109] Samples were produced according to the recipe in Table II.

[0110] Table II: Formulations of Sample Polymer Compositions

[0111]

[0112] The values ​​in Table II are presented as parts by weight of materials in the formulation of the polymer composition.

[0113] The material properties were determined in the polymer compositions obtained, the results of which are shown in Table III.

[0114] Table III: Properties of Sample Polymer Compositions

[0115] C1 S1 S2 C2 S3 C3 S4 C4 C5 C6 C7 C8 IV 0.87 0.87 0.87 0.90 0.85 0.88 0.85 0.85 0.84 0.85 0.85 0.87 TS 2.8 3.4 3....

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
particle sizeaaaaaaaaaa
densityaaaaaaaaaa
Login to View More

Abstract

The present invention relates to a polymer composition comprising: relative to the total weight of the polymer composition, a. polybutylene terephthalate; b. glass fibers; and c. vinyl. This polymer composition provides the desired combination of properties that can be used to produce thin-walled connectors because of the desirable high heat distortion temperature, good melt flow properties, high simply supported beam impact strength of the polymer composition and high tensile strain at break.

Description

technical field [0001] The present invention relates to a polymer composition comprising polybutylene terephthalate. The invention also relates to connectors comprising such polymer compositions. Background technique [0002] Polymer compositions comprising polybutylene terephthalate (also known as PBT) are commonly used in the production of articles, such as injection molded articles. Such articles are especially useful in automotive applications, since PBT has properties which are particularly advantageous for such applications. Such advantageous properties include, for example, dimensional stability, allowing the production of molded objects with high dimensional accuracy, and high heat resistance. [0003] A particular application for which polymer compositions comprising polybutylene terephthalate are suitable is the production of connectors for electrical and electronic (E&E) applications, particularly automotive E&E applications. [0004] In the field of connectors...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C08K3/36C08K3/40C08K7/14C08L23/06C08L67/02
CPCC08K2201/003C08K2201/004C08L67/02C08K7/14C08L23/06C08G63/183C08K3/34C08K2201/005C08L2203/20C08L2205/025C08L2207/062C08L2207/066
Inventor C·万德维利
Owner SABIC GLOBAL TECH BV
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com