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Modified polyamide composition containing at least one phenolic compound

A phenolic compound and compound technology, applied in the field of polyamide composition, can solve problems such as the degradation of mechanical properties of polyamide matrix

Active Publication Date: 2015-04-15
POLYAMIDE HIGH PERFORMANCE +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, phenolic resins cause severe degradation of some of the mechanical properties of the polyamide matrix

Method used

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  • Modified polyamide composition containing at least one phenolic compound
  • Modified polyamide composition containing at least one phenolic compound
  • Modified polyamide composition containing at least one phenolic compound

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] Example 1: Synthesis of polymers comprising units of formula (I)

[0057] The following were charged to a well stirred reactor: 141 g (1.5 mol) phenol and 276 g (1.5 mol) laurylaldehyde. Then 4.9 g of 50% aqueous NaOH were added as catalyst. The temperature is raised to 100-110°C to obtain a homogeneous liquid medium. The medium is kept at 100-110° C. for 14 h. Unreacted reactants and formed water were removed by vacuum distillation (1-10 mbar, 120°C). 56 g of distillate were obtained. The obtained product was a viscous orange-yellow liquid (311 g) at 80°C.

[0058] The product is in CDCl 3 pass in 1 H NMR characterization: Multiplets at 7.3 / 6.9 / 4.8 / 0.8-2.2.

Embodiment 2

[0059] Example 2: Synthesis of polymers comprising units of formula (I) and units of formula (II)

[0060] Synthesized by basic catalysis. 94 g (1 mol) of phenol, 138.2 g (0.75 mol) of lauryl aldehyde and 60.8 g (0.75 mol) of a 37% by weight HCOH solution were charged to the well-stirred reactor. Then 3.3 g of 50% aqueous NaOH were added as catalyst. The temperature is raised to 90-100° C. and the water introduced and formed is distilled continuously. The medium is kept at 90-100°C for 6h. The medium has two phases. The reaction medium is concentrated under vacuum (10 mbar) at 90°C. Some solids separated. The product obtained was a viscous orange liquid (195 g) at 80°C.

[0061] The product is in CDCl 3 pass in 1 H NMR characterization: Multiplets at 8.8 / 6.8-5.4 / 4.8 / 2.2-0.5.

Embodiment 3

[0062] Example 3: Synthesis of polymers comprising units of formula (I) and units of formula (II)

[0063] Synthesized by acid catalysis. Charge the following materials into a well stirred reactor:

[0064] - Phenol: 94g (1mol)

[0065] -1 wt% oxalic acid

[0066] The temperature was raised to 100°C. A mixture of 138.2 g (0.75 mol) of laurylaldehyde and 60.8 g (0.75 mol) of a 37% by weight solution of HCOH was then poured in over several hours. The medium was kept at 100°C for 5h. The reaction is completed by gradually raising the temperature to 150-180°C over several hours. The reaction medium is concentrated under vacuum (10 mbar) within a temperature window of 100-150°C. The product obtained was a viscous orange liquid (195 g) at 80°C.

[0067] The product is in CDCl 3 pass in 1 H NMR characterization: Multiplets at 8.8 / 6.8-5.4 / 4.8 / 2.2-0.5.

[0068] Both types of resins have a number average molecular weight (Mn) of about 2000-2200 g / mol. This corresponds to an...

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Abstract

The use of a phenolic compound for producing a modified polyamide having enhanced mechanical properties is described. A polyamide composition including at least such phenolic compound and optionally reinforcing or filler loads is also described. The composition is preferably a composition for molding, for example in the form of granules or powder, that can be used for the production of articles by injection-molding.

Description

technical field [0001] The present invention relates to the use of phenolic compounds for the preparation of modified polyamides with enhanced mechanical properties. The invention also relates to polyamide compositions comprising at least one such phenolic compound and optionally reinforcing fillers or loose fillers. The composition is preferably a molding composition for the production of articles by the injection molding process, for example in the form of granules or powder. Background technique [0002] Technical polyamides are used in the manufacture of articles in various fields, such as the automotive field, in which particular properties of rigidity, impact strength, dimensional stability (especially at relatively high temperatures), appearance, density and weight are required. The choice of material for a particular application is generally influenced by the level of performance required with regard to particular properties and its cost. In particular, new materia...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G8/04C08L77/00C08L61/06
CPCC08L61/06C08G8/04C08L77/00C08L2666/16
Inventor C·韦尔热拉蒂O·安德勒斯V·沙南L·奥多尼P·索塔D·隆
Owner POLYAMIDE HIGH PERFORMANCE