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Block copolymer composition

A block copolymer and composition technology, applied in the field of block copolymer composition, can solve problems such as non-compliance, and achieve the effect of maintaining transparency

Active Publication Date: 2016-12-07
CHI MEI CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current anionic polymerization terminator (VAC) does not comply with EU NO 10 / 2011 (Food Contact Container Law), so there is an urgent need to find other compounds that can comply with EU NO 10 / 2011, and at the same time, it is required that there will be no emission during extrusion. Smoke phenomenon and bad smell

Method used

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  • Block copolymer composition
  • Block copolymer composition
  • Block copolymer composition

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preparation example Construction

[0051] Preparation of Block Copolymer Compositions

[0052] The preparation method of the block copolymer composition of the present invention comprises first carrying out the polymerization reaction of the block copolymer (A), and then adding the compound (B) of the present invention, and after removing the solvent and drying, the compound of the present invention can be obtained block copolymer composition. In more detail, the polymerization reaction of the block copolymer (A) in the block copolymer composition of the present invention is carried out by dissolving the monomer in a solvent to carry out the polymerization reaction, and then adding the compound (B) of the present invention, and then adding the compound (B) in the solvent Forming a polymer glue in the middle, the above-mentioned glue usually contains 10% by weight to 35% by weight of solids, and the aforementioned glue can be re-concentrated to 50% by weight to 99% by weight of solids in advance by decompression...

experiment example 1～11

[0078] The raw materials used are:

[0079] 1. The vinyl aromatic monomer is styrene (referred to as SM).

[0080] 2. The conjugated diene monomer is 1,3-butadiene (abbreviated as BD).

[0081] 3. The initiator (C) is n-butyllithium (n-BuLi for short) with a concentration of 8% by weight.

[0082] 4. The polar compound (E) is tetrahydrofuran (THF for short).

[0083] 5. Compounds (B) include (1) dioctyl phosphate, (2) diphenyl phosphite, and (3) 3,5,5-trimethylhexanoic acid.

[0084] 6. As the solvent (D), cyclohexane is used.

[0085] First, in the presence of nitrogen, the polymerization is carried out in a batch reactor, wherein the reaction pressure is about 1Kg / cm 2 ~3Kg / cm 2 , The reaction temperature is 50°C to 120°C, and the reaction time is about 60 minutes to 150 minutes. The volume of the reactor is 160 liters, the solvent (D) uses cyclohexane, and the order of feeding and the weight of raw materials are as shown in Table 1. After the above reaction was compl...

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Abstract

A block copolymer composition contains a block copolymer (A) and a compound (B). The block copolymer (A) includes at least one vinyl aromatic polymer block and at least one conjugated diene polymer block. The compound (B) is at least one or the combination selected from the group consisting of phosphate represented by formula (1) and its derivatives, phosphite represented by formula (2) and its derivatives, and fatty acid having 6-9 C and terminal thereof is alkyl group with quaternary carbon and its derivatives. In formula (1) and (2), R1, R2, R3 and R4 independently represent alkyl with 4-10 C or phenyl. The transparency of a block copolymer composition can be maintained, and the smoke and the foul smell are avoided in extrusion.

Description

technical field [0001] The present invention relates to a block copolymer composition, in particular to a block copolymer composition which can maintain transparency and will not generate smoke and odor when extruded. Background technique [0002] Conjugated diene / vinyl aromatic block copolymer resin is a widely used thermoplastic polymer resin. Due to the good transparency and impact strength of conjugated diene / vinyl aromatic block copolymer resin, it is often used in the molding of beverage containers, hangers, toys and other items. This type of copolymer resin has already been mentioned in many patents, such as the Chinese Taiwan Patent Publication No. 574231 patent or the Chinese Taiwan Patent Publication No. I300069 patent. [0003] In the preparation process of the above-mentioned block copolymer resin, raw materials such as vinyl aromatic monomer, conjugated diene monomer, initiator and solvent are usually added to the reaction tank in sequence for reaction. Then, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L53/02C08K5/521C08K5/526
Inventor 谢官霖
Owner CHI MEI CORP
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