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Plastic products with high strength and flexibility

A plastic product and high-strength technology, applied in the field of plastic products, can solve the problems of unfavorable strength of melamine resin fibers and other issues

Inactive Publication Date: 2006-08-23
AMI AGROLINZ MELAMINE INT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The addition of this soluble thermoplastic as a fiber forming component allows filamentation, but this is detrimental to the strength of the melamine resin fibers

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0111] 1.1 Preparation of melamine resin ether suitable for thermoplastic processing

[0112] In a 30-liter stirred autoclave, a melamine dispersion was prepared by adding 1.0 kg of melamine to 13.9 kg of methanol at 95°C, and after adjusting its pH to 5.9 with 10% HCl, 2.5 kg of 37% formaldehyde solution preheated to 60°C was added to the stirred autoclave, and the reaction mixture was reacted at a reaction temperature of 95°C for a reaction time of 20min.

[0113] After cooling to 65 °C, the pH value was adjusted to 9 by adding 10% sodium hydroxide solution, and then after adding 2.23 kg of butanol, the etherified melamine resin condensate dissolved in the water-methanol mixture was transferred to In the first vacuum evaporator, the etherified melamine resin condensate solution was concentrated at 82° C. to obtain a highly concentrated melamine resin solution with a solid content of 76% by weight and a butanol content of 8% by weight.

[0114] The highly concentrated etheri...

Embodiment 2

[0122] 2.1 Preparation of melamine resin ether suitable for thermoplastic processing

[0123] Prepare the melamine dispersion in a 30 L stirred autoclave by adding 1.0 kg of melamine to 15 kg of methanol at 95 °C, after adjusting its pH to 6.1, preheat 3.0 kg under pressure to 92 °C A 37% formaldehyde solution was added into a stirred autoclave, and the reaction mixture was reacted at a reaction temperature of 95° C. for a reaction time of 6 min.

[0124] After cooling to 65 °C, the pH value was adjusted to 9.2 by adding 10% sodium hydroxide solution, and then after adding 0.6 kg of butanol, the etherified melamine resin condensate dissolved in the water-methanol mixture was transferred to In the first vacuum evaporator, the etherified melamine resin condensate solution was concentrated at 80° C. to obtain a highly concentrated melamine resin solution with a solid content of 78% by weight and a butanol content of 3% by weight.

[0125] The highly concentrated etherified melam...

Embodiment 3

[0133] 3.1 Preparation of blends of thermoplastically processable melamine resin ethers and grafted ethylene polymers

[0134] In a 30-liter stirred autoclave, a melamine dispersion was prepared by adding 1.0 kg of melamine to 13.9 kg of methanol at 95 °C, and after adjusting its pH to 5.9 with 10% HCl, the 2.5 kg of 37% formaldehyde solution preheated to 60° C. was added to the stirred autoclave, and the reaction mixture was reacted at a reaction temperature of 95° C. for a reaction time of 20 minutes.

[0135] After cooling to 65 °C, the pH value was adjusted to 9 by adding 10% sodium hydroxide solution, and after adding 2.23 kg of butanol, the etherified melamine resin condensate dissolved in the water-methanol mixture was transferred to In the first vacuum evaporator, the etherified melamine resin condensate solution was concentrated at 82° C. to obtain a highly concentrated melamine resin solution with a solid content of 76% by weight and a butanol content of 8% by weight...

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Abstract

The invention relates to plastic products with high strength and flexibility, characterised in comprising 10 to 50 mass % of at least one cross-linked thermoplast and 90 to 50 mass % of at least one cross-linked melamine resin ether. The invention further relates to a method for production of such a plastic product. The aim of the invention is the production of plastic objects in thermoplastics and duroplastics which can be produced by thermoplastic methodology and which have improved material properties.

Description

technical field [0001] The present invention relates to a high-strength and high-bending plastic product composed of thermoplastic and thermosetting materials, and to a method for their manufacture. Background technique [0002] Plastic articles comprising thermoplastics and comprising thermoset materials are well known. [0003] US 4 267 285 A and Trostyanskaya (Chemical Abstracts 68: 40623) describe glass-fibre-reinforced thermoplastics, such as polypropylene, which contain as filler fine particles of crosslinked phenolic resin or crosslinked melamine resin. The disadvantage is the limited compatibility of the crosslinked thermoset particles with the thermoplastic matrix. [0004] Furthermore, it is known that during the manufacture of melamine resin fibers thermoplastics such as polyacrylamide (DE 23 64 091 A1), polyvinyl alcohol (EP 0 034 446 A1) and polyvinylpyrrolidone (JP 49 087 819 A2). The addition of this soluble thermoplastic as a fiber forming component allows...

Claims

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Application Information

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IPC IPC(8): C08L61/28C08G12/32C08J3/24C08K5/00C08K5/14C08L23/08
CPCC08J3/246C08L23/08C08L61/28C08K5/14C08K5/005C08L2666/02
Inventor 曼弗雷德·雷茨施安德烈亚斯·海德尔乌韦·米勒安德烈亚斯·格斯魏纳
Owner AMI AGROLINZ MELAMINE INT
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