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Additive composition and method for producing a polymer composition using the same

A composition and additive technology, applied in organic chemistry, carboxylic acid anhydride preparation, carboxylate preparation, etc., can solve problems such as ineffectiveness, inconsistent shrinkage of molded parts, etc.

Pending Publication Date: 2021-05-07
MILLIKEN & CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, a particular nucleating agent may be very effective at increasing the peak polymer recrystallization temperature of a thermoplastic polymer, but the rapid crystallization rate induced by such a nucleating agent may result in molded parts exhibit inconsistent (anisotropic) shrinkage
This nucleating agent may also be ineffective at increasing the stiffness of the molded part to the desired degree

Method used

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  • Additive composition and method for producing a polymer composition using the same
  • Additive composition and method for producing a polymer composition using the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] This example illustrates the synthesis of a calcium salt of 1,2-cyclohexanedicarboxylate with a high BET specific surface area.

[0028] Cis-1,2-cyclohexanedicarboxylic anhydride (16.75 g, 108.60 mmol) and water (165 mL) were added to a 500 mL round bottom flask equipped with a mechanical stirrer and reflux condenser. The slurry was raised to 70°C and stirred at this temperature for 1 hour. Remove the heating mantle from the flask. A sodium dodecylbenzenesulfonate (SDBS) solution prepared by dissolving SDBS (1.60 g, 90%, 4.00 mmol) in water (10 mL) was then added to the flask. After stirring for 10 minutes, a lime slurry made by mixing calcium hydroxide (8.04 g, 108.60 mmol) and water (50 mL) was added to the flask. The reaction mixture was stirred for 2 hours.

[0029] The white precipitate was collected by suction filtration and washed with copious amounts of water and dried overnight at 110°C. The dry weight was 23.00 g (93% yield). FTIR and NMR spectra were con...

Embodiment 2

[0031] This example illustrates the synthesis of a calcium salt of 1,2-cyclohexanedicarboxylate with a high BET specific surface area.

[0032] Water (15,800 g) and 50% sodium hydroxide solution (2181.90 g, 27.26 mol) were added to a 50 liter Chemglass reactor equipped with a mechanical stirrer and temperature control. After stirring for 5 minutes, molten cis-1,2-cyclohexanedicarboxylic anhydride (2,100 g, 13.62 mol) was added to the reactor. The resulting mixture was stirred at 200 rpm for 10 minutes to obtain a clear solution. A SDBS solution prepared by dissolving SDBS (30 g, 90%, 77.60 mmol) in water (2,700 g) was then added to the reactor. After mixing for 20 minutes, anhydrous CaCl 2 (1,613g, 96%, 14.53mol) of CaCl dissolved in water (7,797g) 2 The solution was added to the reactor. The mixture was stirred at 200 rpm for 2 hours.

[0033] The white precipitate was collected by a filter press and washed with approximately 60 gallons of water until the conductivity of...

Embodiment 3

[0035] This example illustrates the synthesis of a calcium salt of 1,2-cyclohexanedicarboxylate with a high BET specific surface area.

[0036] Water (600 g), 50% NaOH solution (103.80 g, 1.30 mol) and cis-1,2-cyclohexanedicarboxylic anhydride (100 g, 0.65 mol) were added to a 4,000 mL beaker equipped with a mechanical stirrer. After stirring for 10 minutes, the mixture became a clear solution. Lutensol TDA10 (8.42 g, 13.20 mmol) was then added to the beaker. After mixing for 10 minutes, the CaCl 2 2H 2 A calcium chloride solution prepared by dissolving O (96.7 g, 0.66 mol) in water (4,000 g) was added to the beaker. The reaction mixture was stirred for 2 hours.

[0037] The slurry was diluted in 1.5 L wash methanol. The resulting white precipitate was collected by suction filtration and washed with copious amounts of water, then dried overnight at 110°C. Dry weight 140 g (95% yield). FTIR and NMR spectra were consistent with the expected calcium cis-1,2-cyclohexanedica...

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Abstract

An additive composition comprises one or more calcium cis-1,2-cyclohexanedicarboxylate salts. The calcium 1,2-cyclohexanedicarboxylate salts have a BET specific surface area of 20 m2 / g or more. A method for producing a thermoplastic polymer composition entails mixing the additive composition with a thermoplastic polymer, melting the resulting admixture, and letting the admixture solidify to produce a polymer composition.

Description

technical field [0001] The present application relates to additive compositions suitable for use as crystallization nucleating agents for polymers, methods of producing polymer compositions using such additive compositions, and polymer compositions produced using such methods. Background technique [0002] Many nucleating agents for thermoplastic polymers are known in the art. These nucleating agents generally function by forming nuclei or providing sites for crystal formation and / or growth in the thermoplastic polymer as it solidifies from the molten state. The cores or sites provided by the nucleating agent allow crystals to form within the cooled polymer at higher temperatures and / or at a faster rate than crystals formed in the original unnucleated thermoplastic polymer. These effects may then allow the nucleated thermoplastic polymer composition to be processed with shorter cycle times than the pristine unnucleated thermoplastic polymer. [0003] Although polymeric nuc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K5/00C08K5/098C08L101/00C08J3/20C08L23/12C07C61/09C07C51/083C07C51/41
CPCC08K5/098C08K2201/014C08K2201/006C08J3/203C08J2323/12C08K5/0083C08J2323/06C08J3/12C08L23/12C08K5/12C08L23/06C08K5/092
Inventor 徐晓友C-C·蔡俞新飞D·L·多森K·A·凯勒M·曼尼恩D·T·麦克布赖德
Owner MILLIKEN & CO
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