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Polyester composition and polyester sheet

A composition, polyester technology, applied in the direction of synthetic resin layered products, coatings, chemical instruments and methods, etc., can solve the problem of not paying attention to the poor cutability of polyester sheet stacking, and not revealing any improvement in polyester. Sheet stacking and cutting, etc., to achieve the effect of good stacking and cutting, good low temperature impact resistance

Active Publication Date: 2021-10-12
FAR EASTERN NEW CENTURY COPRRATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the U.S. patent does not pay attention to the problem of poor stacking and cutting properties of polyester sheets in low temperature environments, and does not disclose any technical means to improve the stacking and cutting properties of polyester sheets in low temperature environments

Method used

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  • Polyester composition and polyester sheet
  • Polyester composition and polyester sheet
  • Polyester composition and polyester sheet

Examples

Experimental program
Comparison scheme
Effect test

preparation example 1

[0039] [Preparation Example 1] Polyester-polyether copolymer

[0040] In a reactor, drop into 232 grams of dimethyl terephthalate, 93 grams of ethylene glycol, 230 grams of polytetramethylene ether glycol (the manufacturer is Dalian Chemical Industry, the model is PTG1000), and an appropriate amount of Catalyst for transesterification (the specific type is tetra-n-butyl titanate (Tetra N-Butyl Titanate), the manufacturer is Borica Borica, and the model is Tytan TNBT), and dimethyl terephthalate is made at atmospheric pressure and reaction temperature at 230°C The ester and ethylene glycol were subjected to a transesterification reaction for 5 hours, a total of 77 g of methanol was distilled off, and a transesterified product was obtained. Next, add an appropriate amount of polycondensation catalyst (the specific type is TetraN-Butyl Titanate, the manufacturer is Borica, and the model is Tytan TNBT) in the reaction kettle, and continue to stir the reaction kettle The material ...

Embodiment 1

[0042] Firstly, the polyethylene terephthalate pellets (manufactured by Far Eastern New Century Co., Ltd., model number CB600H, hereinafter referred to as PET pellets) were dried in an oven at 140° C. for 12 hours. Afterwards, with 100 parts by weight of PET ester pellets, 0.35 parts by weight of anti-adhesive agent (specific type is cross-linked styrene-methyl methacrylate copolymer, purchased from Gaoyou Seika, the model is GMS-5061, The average particle size is 6 μm, hereinafter referred to as A1), 0.075 parts by weight of lubricant (the specific kind is stearyl erucamide, and the solubility parameter is 18MPa 1 / 2 , purchased from FINE ORGANICS, the model is Finewax SE, hereinafter referred to as B1), and 2 parts by weight of the polyester-polyether copolymer (hereinafter referred to as C1) of Preparation Example 1 were uniformly mixed to obtain a polyester composition.

[0043] Using a three-layer co-extrusion extruder (manufactured by Dingfeng Automation Co., Ltd. (Leader...

Embodiment 2

[0045] Examples 2 to 4 and Comparative Examples 1 to 9 use a preparation method similar to that of Example 1 to prepare polyester compositions and polyester sheets. Types and / or amounts of each component in the polyester compositions of Comparative Examples 1 to 9. Among them, the specific type of the anti-adhesive agent of the polyester composition in Example 2 is silica (purchased from SUNSPHERE, the model is NP-30, the average particle size is 4 μm, hereinafter referred to as A2). The concrete kind of the lubricant of embodiment 4 polyester composition is ethylendyl biserucamide (solubility parameter is 21MPa 1 / 2 , purchased from Jinyi Chemical, model EBO, hereinafter referred to as B2). The concrete kind of the lubricant of comparative example 6 polyester composition is polyethylene wax (solubility parameter is 16.2MPa 1 / 2 , purchased from Kelian, the model is LICOWAX PE520, hereinafter referred to as B3). The polymer additive of the polyester composition of Comparati...

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Abstract

The invention discloses a polyester composition and a polyester sheet. The polyester sheet includes at least one modified layer made from a polyester composition including a polyester, a polyester-polyether copolymer, a slip agent which has a solubility parameter ranging from 17 MPa1 / 2 to 22 MPa1 / 2, and an anti-blocking agent. Based on 100 parts by weight of the polyester, the polyester-polyether copolymer is present in an amount ranging from 0.5 part by weight to 5 parts by weight, the slip agent is present in an amount ranging from 0.02 part by weight to 0.5 part by weight, and the anti-blocking agent is present in an amount ranging from 0.05 part by weight to 0.6 part by weight. The polyester sheet comprises at least one modified layer, and the at least one modified layer is prepared from the polyester composition. According to the polyester composition, the polyester sheet has good stacking cutting performance in a normal-temperature environment and a low-temperature environment, and the polyester sheet has good low-temperature impact resistance, transparency and printing performance.

Description

technical field [0001] The invention relates to a polymer compound composition and a layered product, in particular to a polyester composition and a polyester sheet containing it. Background technique [0002] For example, polyesters such as polyethylene terephthalate (PET) and polybutylene terephthalate (PBT) are often used to make polyester sheets (sheets) because of their good transparency and printability. , The thickness of a single polyester sheet is generally about 0.2mm or more) to be used as a packaging box. In the production process of the packaging box, 200 to 300 polyester sheets will be stacked together, and then cut according to the size required for subsequent applications to obtain the cut polyester sheets, and then the cut polyester sheets will be The cut polyester sheet is sequentially processed by printing, box rolling, folding box and box gluing. Therefore, the better the stacking and cutting properties of the polyester sheet, the less likely the cut po...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L25/14C08K5/20C08K3/36C08J5/18B32B27/36B32B27/06B32B27/18
CPCC08J5/18B32B27/36B32B27/08B32B27/18C08J2367/02C08J2467/02C08J2425/14C08K5/20C08K3/36B32B2250/244B32B2307/412B32B2307/558B32B2307/75C08L67/02B32B2255/10B32B2270/00B32B2264/104B32B2307/732B32B2307/30B32B2307/51B32B2264/025B32B2264/12B32B27/285B32B2307/58B32B2307/746B32B2264/0235B32B2264/102B32B2250/03C08L67/025C08L33/12C08L67/03B32B2250/40
Inventor 魏宽良留淑娟
Owner FAR EASTERN NEW CENTURY COPRRATION