Alkyl acrylate-vinyl aromatic compound-vinyl cyanide compound copolymer having improved low temperature impact strength, and polycarbonate composition comprising same

A technology of alkyl acrylate and aromatic vinyl, which is applied in the field of copolymers, can solve the problems of deterioration of tensile strength and achieve excellent impact strength

Active Publication Date: 2014-07-16
LG CHEM LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, such attempts resulted in deterioration of other properties such as tensile strength

Method used

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  • Alkyl acrylate-vinyl aromatic compound-vinyl cyanide compound copolymer having improved low temperature impact strength, and polycarbonate composition comprising same
  • Alkyl acrylate-vinyl aromatic compound-vinyl cyanide compound copolymer having improved low temperature impact strength, and polycarbonate composition comprising same

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preparation example Construction

[0042] The method for preparing the above-mentioned alkyl acrylate-aromatic vinyl compound-vinyl cyanide compound copolymer according to the embodiment includes: relative to 100 parts by weight of All the monomers of the cyanide compound copolymer, (a) make containing 4 to 30 parts by weight of monomers selected from at least one of aromatic vinyl compounds, vinyl cyanide compounds and alkyl acrylates, 0.001 to 1 parts by weight The monomer mixture polymerization of the electrolyte, the crosslinking agent of 0.01 to 1 weight part, the grafting agent of 0.01 to 3 weight parts, the initiator of 0.01 to 3 weight parts and the emulsifier of 0.01 to 5 weight parts prepares seed; ( b) In the presence of the seed, make an alkyl acrylate monomer comprising 20 to 80 parts by weight, a polyalkylene crosslinking agent of 0.01 to 3 parts by weight, an initiator of 0.01 to 3 parts by weight and 0.01 polymerizing a monomer mixture of up to 5 parts by weight of an emulsifier to prepare a rub...

Embodiment 1

[0068] Preparation of hard polymer seeds

[0069] Add 40 parts by weight of distilled water into the polymerization reactor replaced by nitrogen, raise the temperature of the reactor to 75°C, add 0.025 parts by weight of potassium persulfate in batches to initiate the reaction, and then continuously add to it at 75°C Add 5 parts by weight styrene, 0.05 parts by weight Na 2 CO 3 , 0.025 parts by weight of ethylene glycol dimethacrylate, 0.025 parts by weight of allyl methacrylate and 0.05 parts by weight of sodium lauryl sulfate, to prepare hard polymer seeds with an average particle size of 0.1 μm.

[0070] Preparation of Rubbery Polymer Cores

[0071]In the presence of the above-prepared hard polymer seed latex, at 75°C, continuously add 60 parts by weight of distilled water, 55 parts by weight of butyl acrylate, 0.3 parts by weight of polyethylene glycol diacrylate (molecular weight: 258), A mixture of 0.3 parts by weight of allyl methacrylate, 0.5 parts by weight of ...

Embodiment 2

[0077] Graft copolymer powder was prepared in the same manner as described in Example 1, except that in the preparation of the rubbery polymer core of Example 1, 0.3 parts by weight of polyethylene glycol dimethacrylic acid was used Esters (molecular weight: 330) were used instead of PEGDA.

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Abstract

The present invention relates to: an alkyl acrylate-vinyl aromatic compound-vinyl cyanide compound copolymer wherein the alkyl acrylate-vinyl aromatic compound-vinyl cyanide compound copolymer is produced with the use of a polyalkylene-based crosslinking agent of polyethylene glycol diacrylate or polyethylene glycol dimethacrylate in a core portion of the alkyl acrylate-vinyl aromatic compound-vinyl cyanide compound copolymer, and same is made use of in a polycarbonate resin composition so as to exhibit an effect whereby the low temperature impact strength of the resin is improved, and the present invention also relates to a polycarbonate resin composition comprising the copolymer.

Description

technical field [0001] The present invention relates to an acrylic copolymer and a polycarbonate composition comprising the same. More specifically, the present invention relates to an alkyl acrylate-aromatic vinyl compound-vinyl cyanide compound copolymer, and a polycarbonate resin composition comprising the copolymer, which has improved low temperature properties of the resin Effect of impact strength by preparing acrylate-styrene-acrylonitrile copolymer by using a polyalkylene-based crosslinking agent for the core of the copolymer, and applying the acrylate-styrene-acrylonitrile copolymer to Realized in polycarbonate resin composition. Background technique [0002] Automobile exterior materials or mobile phone casings are often exposed to low temperature environments during use, and are easily exposed to light sources such as ultraviolet rays. In addition, these materials require high heat resistance to withstand hot sunlight and high tensile strength. [0003] Product...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L25/12C08L69/00C08F265/04
CPCC08L69/00C08F285/00C08F291/02C08L51/04C08F265/04C08F212/08C08F220/44
Inventor 韩惠敬黄龙渊金玟静朴春浩李尚美
Owner LG CHEM LTD
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