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Solvent-free tackifying chain extender as well as preparation method and application thereof

A viscosity-increasing and chain-extending agent, solvent-free technology, applied in adhesive types, hydrocarbon copolymer adhesives, etc., can solve problems such as early launch, restriction of industry development, and high price in the ADR market, and achieve a suitable molecular weight , narrow molecular weight distribution, and high softening temperature

Active Publication Date: 2020-08-07
FINE BLEND POLYMER SHANGHAI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the BASF ADR series was launched early, the effect is good, and the market share is relatively high, but the market price of ADR is expensive, which has also become an important factor restricting the development of the industry

Method used

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  • Solvent-free tackifying chain extender as well as preparation method and application thereof
  • Solvent-free tackifying chain extender as well as preparation method and application thereof
  • Solvent-free tackifying chain extender as well as preparation method and application thereof

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Embodiment Construction

[0030] The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0031] The preparation method of the solvent-free viscosity-increasing chain extender of the present invention is as follows, put aromatic vinyl monomers, acrylate monomers, initiators, molecular weight modifiers, and water into the reaction kettle, and react at 65-80°C under stirring for 2 -8 hours, then continue to react at 90-110°C for 0.5-2 hours, filter and dry after discharge to obtain a solvent-free viscosity-increasing chain extender; The solvent-free viscosity-increasing and chain-extendi...

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PUM

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Abstract

The invention provides a solvent-free tackifying chain extender as well as a preparation method and application thereof. The preparation method comprises the following steps: mixing an aromatic vinylmonomer, an acrylate monomer, an initiator and water; heating for polymerization, and granulating through double-screw secondary reaction to prepare the solvent-free tackifying chain extender. According to the invention, the epoxy functionalized chain extender disclosed by the invention can be applied to recycled polyester structure materials, and can be applied to repair and growth of bio-based and biodegradable plastic molecular chains with polyester structures. The invention has the advantages of no need of solvents in the process route, low investment, accessible equipment, low process route discharge, simple process control, stable composition and simple product use, and can be widely used in the fields of medical treatment, packaging, household appliances, automobiles, aviation and the like. Wide application prospects and industrial values are realized.

Description

technical field [0001] The invention relates to a method for preparing a viscosity-increasing chain extender that can be used for recycling and degradable polyester, and a preparation method thereof, belonging to the field of polymer materials. Background technique [0002] With the development of industrial and agricultural science and technology in modern society, the use of plastics has gradually penetrated into various fields of industrial and agricultural production. The "White Revolution" that once brought good news to industrial and agricultural production not only greatly promoted the development of my country's industrial and agricultural production, but also caused great "white pollution" to our country's ecological environment. According to reports, in 2010, my country's polyester bottle recycling market has reached 6.7 million tons, and the country regards "recycling of waste plastics" and "waste textiles" as key development areas. It can be seen that the market...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F212/08C08F220/32C08F2/10C08F2/38C08G63/91C08G64/42
CPCC08F212/08C08F2/10C08F2/38C08G63/912C08G63/916C08G64/42C08F220/325C08L67/02C09J125/14C08G63/183C08L33/068
Inventor 段浩朱从山司胜仁
Owner FINE BLEND POLYMER SHANGHAI CO LTD
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