WO2007105717A1 - 熱可塑性樹脂組成物 - Google Patents
熱可塑性樹脂組成物 Download PDFInfo
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- WO2007105717A1 WO2007105717A1 PCT/JP2007/054925 JP2007054925W WO2007105717A1 WO 2007105717 A1 WO2007105717 A1 WO 2007105717A1 JP 2007054925 W JP2007054925 W JP 2007054925W WO 2007105717 A1 WO2007105717 A1 WO 2007105717A1
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F265/00—Macromolecular compounds obtained by polymerising monomers on to polymers of unsaturated monocarboxylic acids or derivatives thereof as defined in group C08F20/00
- C08F265/04—Macromolecular compounds obtained by polymerising monomers on to polymers of unsaturated monocarboxylic acids or derivatives thereof as defined in group C08F20/00 on to polymers of esters
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L51/00—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F265/00—Macromolecular compounds obtained by polymerising monomers on to polymers of unsaturated monocarboxylic acids or derivatives thereof as defined in group C08F20/00
- C08F265/04—Macromolecular compounds obtained by polymerising monomers on to polymers of unsaturated monocarboxylic acids or derivatives thereof as defined in group C08F20/00 on to polymers of esters
- C08F265/06—Polymerisation of acrylate or methacrylate esters on to polymers thereof
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F285/00—Macromolecular compounds obtained by polymerising monomers on to preformed graft polymers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L101/00—Compositions of unspecified macromolecular compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L101/00—Compositions of unspecified macromolecular compounds
- C08L101/12—Compositions of unspecified macromolecular compounds characterised by physical features, e.g. anisotropy, viscosity or electrical conductivity
- C08L101/14—Compositions of unspecified macromolecular compounds characterised by physical features, e.g. anisotropy, viscosity or electrical conductivity the macromolecular compounds being water soluble or water swellable, e.g. aqueous gels
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L51/00—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
- C08L51/003—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers grafted on to macromolecular compounds obtained by reactions only involving unsaturated carbon-to-carbon bonds
Definitions
- the present invention relates to a thermoplastic resin composition containing a thermoplastic resin and a graft copolymer and capable of exhibiting excellent weather resistance and high impact resistance.
- (meth) acrylate rubbers have a smaller impact resistance improving effect than Gen rubbers, so it is necessary to increase the blending amount in thermoplastic resins.
- thermoplastic resins it is desired in terms of quality or cost to reduce the amount of the graft copolymer, which is an impact resistance improver, as much as possible. Considerations have been made over the years to improve that point.
- a high molecular weight polyanion having a carboxyl group and / or a hydroxyl group in the molecule is added to the rubber latex.
- a method of dripping the mixed latex into an aqueous solution containing at least one alkaline earth metal is known (for example, see Patent Document 2).
- the high molecular weight polyanion is not added at least 2 to 8 parts by weight, preferably 4 to 6 parts by weight, with respect to 100 parts by weight of the rubber solid content in the rubber latex, It is stated that it cannot be suppressed.
- thermoplastic resin composition capable of satisfying at a high level both conflicting physical properties such as workability improvement, quality reduction and cost increase due to impact resistance improvement and impact resistance additive added, The current situation is still expected.
- Patent Document 1 Japanese Patent Laid-Open No. 6-122827
- Patent Document 2 Japanese Patent Laid-Open No. 52-37987
- An object of the present invention is to provide a novel thermoplastic resin composition having excellent weather resistance and high impact resistance.
- the inventors of the present invention have reduced the glass transition temperature of all layers to 50 to 99.5% by weight with a glass transition temperature of 20 ° C or lower.
- a graft copolymer obtained by graft polymerization of 0.5 to 50% by weight of a non-crosslinked shell having a specific composition is added to a thermoplastic resin, a thermoplastic resin composition capable of exhibiting excellent impact resistance can be obtained.
- the headline and the present invention were completed.
- the present invention provides a thermoplastic resin composition
- a thermoplastic resin composition comprising 100 parts by weight of a thermoplastic resin (A) and 0.5 to 20 parts by weight of a graft copolymer (B), wherein the graft copolymer
- the union (B) is composed of only 50 to 99.5% by weight of the core (bc) and 0.5 to 50% by weight of the non-crosslinked shell (bs), and the core (be) has a glass transition temperature of 20 ° C or less.
- the present invention relates to a thermoplastic resin composition characterized by polymerizing a monomer mixture for shell.
- the core (be) is 45 to 99.9% by weight of (meth) acrylic acid ester and 0 to 54.9% by weight of a butyl monomer copolymerizable with (meth) acrylic acid ester. %, And a polyfunctional monomer 0.1 to: a thermoplastic resin composition obtained by polymerizing a monomer mixture for a core consisting of only 10% by weight.
- the monomer mixture for the non-crosslinked shell comprises only acrylic acid ester 52 to 100% by weight, and vinyl monomer copolymerizable therewith 0 to 48% by weight. It is to make a thermoplastic resin composition.
- the non-crosslinked shell monomer mixture comprises only 2 to 95% by weight of acrylic acid ester and 5 to 48% by weight of vinyl monomer copolymerizable therewith. It is to make a resin composition.
- the water-soluble polymer compound (C) having a property of forming a physical gel is further added in an amount of 0.01 to 3.0 weights per 100 weight parts of the graft copolymer (B). It is to make a thermoplastic resin composition containing a part.
- a preferred embodiment is the water-soluble polymer compound (C) 1S, hydroxyethyl methyl senorelose, hydroxypropino methino reseno relose, canoleboxy methino reseno relose, water-soluble deuterated alginate derivative, agar
- the thermoplastic resin composition is one or more selected from gelatin, carrageenan, dalcomannan, pectin, cardran, dielan gum, and polyacrylic acid derivatives.
- the water-soluble polymer compound (C) is a thermoplastic resin composition which is a water-soluble alginic acid derivative.
- thermoplastic resin composition of the present invention can exhibit excellent weather resistance, high resistance, and impact resistance.
- (meth) acryl means acrylic and straw or methacryl unless otherwise specified.
- thermoplastic resin ( ⁇ ) (Example of thermoplastic resin ( ⁇ ))
- thermoplastic resin ( ⁇ ) in the present invention a known thermoplastic resin without particular limitation can be used. Specifically, for example, vinyl chloride resin, (meth) acrylic resin, styrene resin, carbonate resin, amide resin, ester resin, olefin resin, ABS (acrylonitrile 'butadiene' styrene) resin It is possible to use the power properly.
- the graft copolymer ( ⁇ ) in the present invention can exhibit an excellent effect particularly when used as an impact resistance improver for a vinyl chloride vinyl resin. It is particularly preferable that ⁇ ) is a salt vinyl resin.
- the vinyl chloride resin means a vinyl chloride homopolymer or a copolymer containing at least 50% by weight, preferably 70% by weight or more of a salt-derived vinyl chloride,
- the monomer copolymerizable with the fluorinated monomer include butyl acetate, propylene, styrene, (meth) acrylic acid ester, acrylonitrile, vinylidene chloride, and the like. These may be used alone or in combination of two or more.
- the graft copolymer (B) in the present invention is a core-shell type graft copolymer in which the core (be) has a non-crosslinked shell (bs) and is at least partially, preferably entirely grafted.
- the core of the sum of (be) and a shell (bs) is 100 weight 0/0
- non-crosslinked shell (bs) 0. 5 to 50 It is composed of wt% (however).
- the content of the graft copolymer (B) in the thermoplastic resin composition of the present invention is not particularly limited, but from the standpoint of quality and cost, 0.5 to 0.5 parts by weight relative to 100 parts by weight of the thermoplastic resin (A). 20 to 10 parts by weight is desirable 0.5 to 10 parts by weight is more preferred:! To 7 parts by weight is particularly preferable. If the content of the graft copolymer (B) in the thermoplastic resin composition exceeds 20 parts by weight, the impact resistance improvement effect is sufficient, but the quality other than impact resistance may be reduced. There may be cases where costs increase. On the other hand, when the content of the graft copolymer (B) in the thermoplastic resin composition is less than 0.5 parts by weight, it may be difficult to obtain a sufficient impact resistance improving effect.
- the layer structure of the graft copolymer (B) of the present invention for example, a layer structure in which the core (be) is completely covered with the non-crosslinked shell (bs) is generally used. Depending on the weight ratio of the shell (bs), the amount of shell for forming the layer structure may be insufficient. In such a case, it may be a structure in which a part of the core (be) does not need to be a complete layer structure and the non-crosslinked seal (bs) is covered, or a part of the core (be) is not A structure in which at least a part of the monomer that is a constituent element of the crosslinked shell (bs) is graft-polymerized can also be used suitably. The concept of the above layer structure is similarly applied to a case where a multilayer structure is formed in the core (be) or the non-bridge shell (bs) in the present invention.
- the graft copolymer (B) in the present invention can be produced according to a known method.
- the emulsion copolymer method, suspension polymerization method, micro suspension polymerization method, It can be produced by the Chillon polymerization method, the aqueous dispersion polymerization method or the like.
- a graft copolymer produced by an emulsion polymerization method can be suitably used because the structure can be easily controlled.
- the general manufacturing method is described in detail in, for example, JP-A-2002-363372, JP-A-2003-119396, JP-A-9-286830, and the like. However, it is not limited to these.
- the core (be) in the present invention is a rubber-like polymer having a glass transition temperature of 20 ° C. or less, and the structure thereof is not particularly limited, but the rubber-like polymer forming the core (be) is used. It may have a multilayer structure of one layer or two or more layers, and it is generally known that the effect of increasing the stress concentration is high from the viewpoint of improving impact resistance to a high level. For example, a structure having a hollow portion inside can be suitably used.
- the glass transition temperature of all the layers contained in the core (be) is 20 ° C or lower, that is, the core (be) is made of glass. It must be a rubbery polymer composed only of layers with a transition temperature of 20 ° C or lower. If the core (be) has a layer with a glass transition temperature of 20 ° C or higher, the impact resistance improving effect tends to be small.
- the glass transition temperature of the polymer (hereinafter also referred to as Tg) can be measured by, for example, a differential scanning calorimeter.
- Tg glass transition temperature of the polymer
- the polymer handbook [Polymer Hand Book (J. Brandrup, Interscience) 989)] is used, and the value calculated using Fox's formula is used (for example, Tg of polymethylmetatalylate is 105 ° C, and Tg of polybutylatallylate is Is 54 ° C, and the Tg of poly (2-hexylhexylate) is _50.C).
- the weight ratio of the core (be) in the graft copolymer (B) is 50 to 99.5% by weight, preferably 60 to 99.5% by weight, more preferably 70 to 97% by weight, Preferably, it is 80 to 97% by weight.
- the weight ratio of the core (be) in the graft copolymer (B) is less than 50% by weight, for example, when used as an impact resistance improver for thermoplastic resins such as vinyl chloride resins. In some cases, the impact resistance improving effect is not obtained.
- the volume average particle diameter of the core (be) is not particularly limited, but is preferably 0.05 ⁇ to 0.5 zm, and more preferably 0.0 xm to 0. 3 ⁇ m is preferable to force S. If the volume average particle size of the core (be) in the graft copolymer (B) exceeds 0, the thermoplastic resin composition may not be able to exhibit the effect of improving impact resistance. There is a possibility that the quality such as the surface gloss of the molded article molded by use may deteriorate. On the other hand, when the volume average particle diameter of the core (be) in the graft copolymer (B) is less than 0.05 ⁇ m, the impact resistance improving effect may be exhibited.
- the volume average particle diameter can be measured by using, for example, MICROTRAC UPA150 (manufactured by Nikkiso Co., Ltd.).
- the composition of the core (be) in the present invention is preferably a poly (meth) acrylate rubber-like polymer from the viewpoint of weather resistance and the like, but the impact resistance of the resulting thermoplastic resin composition is high.
- (meth) acrylic acid ester 45 to 9.99% by weight bull monomer copolymerizable with (meth) acrylic acid ester 0 to 54.9% by weight, and many functional monomers 0.
- 10 wt% core monomer mixture consisting of (where the total amount is 100 wt 0/0) is preferably a crosslinked rubbery polymer obtained by polymerizing.
- the amount of (meth) acrylic acid ester in the core monomer mixture is preferably 45 to 99.9% by weight, more preferably 60 to 99.9% by weight from the viewpoint of weather resistance.
- Examples of the (meth) acrylic acid ester include, for example, methyl (meth) acrylate, ethyl (meth) acrylate, propyl (meth) acrylate, (meth T) butyl acrylate, 2-methyhexyl (meth) acrylate, octenole (meth) acrylate, dodecyl (meth) acrylate, stearyl (meth) acrylate, behenyl (meth) acrylate (Meth) acrylic acid alkyl esters having an alkyl group having 1 to 22 carbon atoms, such as (meth) acrylic acid 2-hydroxyethyl, (meth) acrylic acid 4-hydroxybutyl, etc.
- (Meth) acrylic acid esters having an alkyl group and a hydroxyl group (meth) acrylic acid esters having an epoxy group such as (meth) acrylic acid glycidinole, or an alkyl group having 1 to 22 carbon atoms. And (meth) acrylic acid esters having an alkoxyl group.
- the carbon number of the alkyl group of the (meth) acrylic acid esters is not necessarily limited. However, for example, if the carbon number exceeds 22, the polymerizability may be inferior.
- (Meth) acrylic acid esters having 22 or less carbon atoms can be suitably used. These may be used alone or in combination of two or more.
- (meth) acrylic acid alkyl esters having an alkyl group with 12 or less carbon atoms which are commonly used as a rubber-like polymer core of a (meth) acrylic acid ester impact modifier, Can be suitably used.
- These may be used alone or in combination of two or more.
- the amount of the butyl monomer copolymerizable with the (meth) acrylic acid ester in the core monomer mixture is preferably 0-54.9% by weight, or 0-54.8% by weight. From this viewpoint, it is more preferably 0 to 39.9% by weight, further preferably 0 to 29.9% by weight, and particularly preferably 0 to 19.9% by weight.
- butyl monomer copolymerizable with the (meth) acrylic acid ester examples include aromatic butyl compounds such as styrene, monomethylstyrene, monochlorostyrene, and dichlorostyrene, acrylonitrile, and metathali.
- examples thereof include cyanide bur compounds such as nitrile, carboxylic acids such as acrylic acid and methacrylic acid, halogenated vinyls such as butyl chloride, bromobromide and chloroprene, and vinyl acetate.
- the graft copolymer (B) is arranged. From the viewpoint of processability of the combined thermoplastic resin composition, an aromatic vinyl compound or a cyanated vinyl compound is more preferable. These may be used alone or in combination of two or more.
- the amount of the polyfunctional monomer used in the core monomer mixture is preferably 0.:! To 10% by weight, more preferably 0.% from the viewpoint of improving impact resistance. :! To 5% by weight, more preferably 0.:! To 3% by weight, particularly preferably 0.2 to 3% by weight. If the amount of the polyfunctional monomer used to form the core (be) exceeds 10% by weight, the impact resistance improving effect may be difficult to develop. On the other hand, if the amount of polyfunctional monomer used for forming the core (be) is less than 0.1% by weight, the graft copolymer (B) may not be able to maintain its shape during molding. In some cases, the impact resistance improving effect is hardly exhibited.
- the polyfunctional monomer serves as a cross-linking agent that introduces a cross-linked structure into the core (be), and grafts when the non-cross-linked shell (bs) is graft-polymerized to the core (be). It also has the role of a graft crossing agent to supply points.
- Specific examples of the polyfunctional monomer include, for example, arylenomethalate, diallyl phthalate, triarylcyanurate, monoethylene glycol dimetatalylate, tetraethylene glycol dimetatalylate, dibutenebenzene, and 1 , 3 -butylene glycol, dimetatalylate and the like. Of these, aryl methacrylate is more preferable from the viewpoint of the function as a graft crossing agent. These may be used alone or in combination of two or more.
- Non-crosslinked shell of the present invention are acrylic acid esters 52 to 100 parts 0/0, and non-crosslinked shell monomer for mixed-containing 0 to 48 wt% thereof with copolymerizable vinyl monomers It is obtained by polymerizing a product.
- the polymer forming the non-crosslinked shell (bs) may have only one layer or a multilayer structure of two or more layers.
- the weight ratio of the non-crosslinked shell (bs) in the graft copolymer (B) is 0.5 to 50% by weight, preferably 0.5 to 40% by weight, more preferably 3 to 30% by weight. Particularly preferred is 3 to 20% by weight.
- the weight ratio exceeds 50% by weight, for example, when used as an impact resistance improver for a thermoplastic resin such as a chlorinated resin, the impact resistance improving effect may not be obtained. .
- the particles are coarsened or agglomerated when the particles of the graft copolymer (B) are recovered from the emulsion polymerization latex or suspension polymerization slurry. May happen.
- the monomer mixture for the non-crosslinked shell is a monomer mixture composed of acrylic acid ester 52-: 100% by weight, and vinyl monomer copolymerizable therewith 0-48% by weight (however, the total amount is 100 More preferably, the acrylic acid ester is 52 to 97% by weight, and the vinyl monomer copolymerizable therewith is 3 to 48% by weight, and more preferably, the acrylic acid ester is 52 to 95% by weight and 5 to 48% by weight of a butyl monomer copolymerizable therewith, more preferably 52 to 90% by weight of an acrylate ester and 10 to 48% by weight of a vinyl monomer copolymerizable therewith. 0/0, more preferably, is acrylic acid esters 52 to 80 wt%, and their copolymerizable vinyl monomer 20 to 48 consisting wt% monomer mixture (provided that 100% by weight total) .
- the non-crosslinked shell monomer mixture may be 55 to 95% by weight of an acrylate ester and 5 to 45% by weight of a vinyl monomer copolymerizable therewith, more preferably an acrylate ester 60. ⁇ 90% by weight, and 10 to 40% by weight of a butyl monomer copolymerizable therewith, more preferably 62 to 85% by weight of an acrylate ester and a vinyl monomer copolymerizable therewith 15 to 38%
- the shell is softened by increasing the impact strength.
- an alkyl group that is generally used for rubber-like polymers of (meth) acrylic acid ester impact modifiers. It is effective to make the acrylic acid ester having 12 or less carbon atoms of 52 to 85% by weight, preferably 65 to 85% by weight, more preferably 75 to 85% by weight.
- the weight ratio of the acrylate ester of the shell is less than 52% by weight, for example, when it is used as an impact resistance improver for thermoplastic resins such as chlorinated resin, the impact resistance improving effect is improved. There may be cases where the fruit is obtained.
- the weight ratio of the acrylic ester exceeds 85% by weight and the water-soluble polymer compound (C) having the property of forming a physical gel is not contained, the emulsion polymerization latex or suspension polymerization slurry is used.
- the particles of the graft copolymer (B) are collected, coarsening or agglomeration may occur.
- thermoplastic resin composition contains the water-soluble polymer compound (C) having the property of forming a physical gel
- the amount of acrylate ester in the shell may be increased even if the amount of the acrylic copolymer is increased.
- recovering coalescence (B) coarsening and agglomeration can be suppressed, and productivity can be maintained even if the shell acrylic acid ester is increased to 75 to 85% by weight, and high impact strength is exhibited. This is particularly effective.
- the acrylate ester and the bulle monomer copolymerizable therewith may be used singly or in combination of two or more, respectively, but in order to make the shell (bs) non-crosslinked, various measures are taken. It is preferable to use functional monomers.
- Examples of the acrylate ester used for polymerization of the non-crosslinked shell (bs) include methyl acrylate, ethyl acrylate, propyl acrylate, butyl acrylate, 2-ethylhexyl acrylate, octyl acrylate, dodecyl acrylate. , Stearyl acrylate, behenyl acrylate and the like, alkyl acrylates having an alkyl group having 1 to 22 carbon atoms, 2-hydroxyethyl acrylate, 4-hydroxybutyl acrylate, etc.
- Acrylic acid ester having 22 alkyl groups and hydroxyl group acrylic acid ester having epoxy group such as glycidinole acrylate, or alkyl group having carbon number:! ⁇ 22 and having alkoxyl group
- acrylic acid esters examples include acrylic acid esters.
- the number of carbon atoms in the alkyl group of the acrylate ester is not necessarily limited. For example, if the number of carbon atoms exceeds 22, the polymerizability may be inferior, so that the alkyl group has 22 or less carbon atoms.
- Acrylic esters can be suitably used.
- alkyl acrylates having an alkyl group with a carbon number of 12 or less which are widely used as rubber-like polymer cores for (meth) acrylate impact modifiers, can be suitably used. These may be used alone or in combination of two or more.
- the Biel monomer that can be copolymerized with the acrylate ester used in the non-crosslinked shell (bs) in the present invention is not particularly limited, and examples thereof include methacrylic acid esters, aromatic bur compounds, and cyanide bulls.
- One or more monomers selected from compounds, vinyl carboxylic acids, vinyl halides, and butyl acetate can be suitably used.
- the aromatic bur compound include styrene, hymethyl styrene, burtrene and the like.
- Methacrylic acid esters include methyl methacrylate, ethyl acetate, butyl methacrylate, 2_ethylhexyl methacrylate, dodecyl methacrylate, stearyl methacrylate, behenyl methacrylate, glycidyl methacrylate Etc. can be illustrated.
- Examples of the vinyl cyanide compound include acrylonitrile and methacrylonitrile.
- Examples of the bull carboxylic acids include acrylic acid and methacrylic acid.
- Examples of the halogenated burs include chlorinated bulls, brominated bulls, black mouth planes and the like. These may be used alone or in combination of two or more.
- a butyl chloride resin is used as the thermoplastic resin (A)
- the thermoplastic resin (A) preferably contains a water-soluble polymer compound (C) having a property of forming a physical gel together with the graft copolymer (B).
- the physical gel means a gel formed by a physical bridge formed by hydrogen bonds, ionic bonds or chelate formation between polymers.
- it has the property of forming a physical gel when it is converted from a viscous fluid (sol) to an elastic body (gel) by adding a gelling agent such as inorganic salt or acid to an aqueous solution of a water-soluble polymer compound alone.
- the water-soluble polymer compound (C) having the property of forming a physical gel is defined as a water-soluble polymer compound having the above properties.
- the water-soluble polymer compound (C) having the property of forming a physical gel that can be used in the present invention is not particularly limited as long as it can exhibit the above properties, and is selected from the following group, for example.
- Water-soluble polymer compound consisting of one or a mixture of two or more That power S.
- water-soluble alginic acid derivatives such as alginic acid, sodium alginate, potassium alginate, ammonium alginate, hydroxyethylmethylcellulose, hydroxypropylmethylcellulose, carboxymethylcellulose, agar, gelatin, carrageenan, dalcomannan, pectin, curdlan, dilanthanum, Examples include polyacrylic acid derivatives.
- a water-soluble alginic acid derivative can be most preferably used among these, among which carboxymethylcellulose, a water-soluble alginic acid derivative, or a polyacrylic acid derivative is more preferable in terms of achieving the object.
- the ratio of mannuronic acid and guluronic acid in the water-soluble alginic acid derivative is not particularly limited. However, the higher the ratio of gnoleronic acid, the higher the ability to form a physical gel. Has a guluronic acid ratio in the water-soluble alginic acid derivative of 5% by weight or more, more preferably 30% by weight or more. Further, the molecular weight of the water-soluble polymer compound represented by the water-soluble alginic acid derivative is not particularly limited, but it was measured by a B-type viscometer from the viewpoint of liquid transfer during production. The aqueous solution has a viscosity of preferably 2 to 22 OOOmPa ⁇ s, more preferably 2 to: OOOmPa ⁇ s.
- thermoplastic resin composition of the present invention As a method for adding the water-soluble polymer compound (C) having the property of forming a physical gel in the thermoplastic resin composition of the present invention, first, after blending (C) with the graft copolymer (B), It is effective to blend this into a thermoplastic resin as an impact resistance improver. In particular, a method of adding a water-soluble polymer compound (C) having a property of forming a physical gel to the latex of the graft copolymer (B) and treating it is effective.
- the content of the water-soluble polymer compound (C) having the property of forming a physical gel is 0.01 to 3.0 parts by weight with respect to 100 parts by weight of the graft copolymer (B). It is more preferable that the amount is 0.05.8-1.8 parts by weight.
- the content of the water-soluble polymer compound (C), which has the property of forming a physical gel is less than 0.01 parts by weight, it becomes coarse when the graft copolymer (B) that is an impact modifier is recovered. Tend to occur and the presence of these coarsened or agglomerated graft copolymers When it does, there exists a tendency for the impact resistance provision effect to be inferior.
- the content of the water-soluble polymer compound (C) having the property of forming a physical gel is more than 3.0 parts by weight, it becomes coarse or bulky when the graft copolymer (B) is recovered.
- a large amount of water-soluble polymer compounds (including substances derived from them) remain in the impact resistance improver, but the impact resistance imparting effect and thermal stability during the molding process are improved. There is a tendency for quality such as sex to decline.
- a gelling agent together with the water-soluble polymer compound (C) having the property of forming a physical gel. More specifically, for example, when the graft copolymer (B) is recovered from the latex, the water-soluble polymer compound (C) having a property of forming a physical gel with the latex of the graft copolymer. It is preferable to add a gelling agent to the mixture.
- gelling agents examples include sodium chloride, potassium chloride, lithium chloride, sodium bromide, potassium bromide, lithium bromide, potassium iodide, lithium lithium, sulfuric acid, and the like.
- a water-soluble polymer compound having a property of forming a physical gel (C When a water-soluble alginic acid derivative is used as), calcium chloride, ferrous sulfate, ferrous chloride, ferric chloride, ferric sulfate, aluminum sulfate, and the like can be suitably used as the gelling agent.
- the amount of the gelling agent added is not particularly limited, but most of the gelling agent can be washed away by a water washing step at the time of graft copolymer recovery, and the graft copolymer (B) is added to 100 parts by weight. On the other hand, it is preferable that the residual amount is less than 1 part by weight, more preferably 0.01 to 0.5 part by weight. Graft copolymer (B) If the residual amount of gelling agent exceeds 100 parts by weight, for example, it may be mixed with a thermoplastic resin and the processability during molding may change. There is a risk of causing problems such as yellowing of the molded product just because it tends to be difficult to exhibit a high impact resistance effect.
- the amount of gelling agent used during the recovery of the graft copolymer (B) is particularly limited if the residual amount of the gelling agent relative to 100 parts by weight of the graft copolymer is less than 1 part by weight. Although there is no limit, 0.2 to 20 parts by weight is preferable with respect to 100 parts by weight of the graft copolymer (B) from the viewpoint of easy recovery and production cost, and 1 to 10 parts by weight is more preferable. preferable.
- the water-soluble polymer compound (C) having the property of forming a physical gel preferably together with a gelling agent, in the thermoplastic resin composition of the present invention or the graft
- a gelling agent in the thermoplastic resin composition of the present invention or the graft
- the non-adhesive physical gel coexists in the coagulated particles of the graft copolymer (B), thereby preventing the coagulated particles from being blocked during blocking and maintaining the shape of the coagulated particles (providing elasticity to the coagulated particles) ) And improve
- the graft copolymer (B) is added to the thermoplastic resin of the present invention.
- an anti-fusing agent can be further included as a part of the impact resistance improver.
- an anti-fusing agent there is no particular limitation on such an anti-fusing agent, but it is possible to satisfy a higher level of quality such as impact resistance improvement effect and the effect of suppressing coarsening and agglomeration.
- a polyvalent metal salt of an anionic surfactant and Z or silicon oil can be suitably used.
- thermoplastic resin composition of the present invention additives such as an antioxidant, a heat stabilizer, an ultraviolet absorber, a pigment, an antistatic agent, a lubricant, and a processing aid are appropriately added to the thermoplastic resin composition of the present invention as necessary. You can.
- thermoplastic resin composition of the present invention As a method for producing the thermoplastic resin composition of the present invention, a known method without particular limitation can be adopted. For example, a powder containing a thermoplastic resin (A), a graft copolymer (B), and a water-soluble polymer compound (C) having a property of forming a physical gel is previously mixed using a Henschel mixer, a tumbler, etc. Then, a method of obtaining a resin composition by melt kneading using a single screw extruder, a twin screw extruder, a Banbury mixer, a heating roll, or the like can be employed.
- a method of obtaining a resin composition by melt kneading using a single screw extruder, a twin screw extruder, a Banbury mixer, a heating roll, or the like can be employed.
- 2-ethylhexyl acrylate (hereinafter also referred to as 2-EHA) is used as a part of the monomer mixture for the first layer that is a part of the monomer mixture for the core through the addition device.
- 2-EHA 2-ethylhexyl acrylate
- AMA allylmetatalylate
- cumene hydroperoxide 0.01 parts by weight
- a mixed solution prepared by dissolving 0.01 part by weight of sodium and 0.005 part by weight of ferrous sulfate heptahydrate in 5 parts by weight of distilled water and 0.2 part by weight of sodium formaldehydesulfoxynolate are charged. It is.
- butyl acrylate (hereinafter, also referred to as BA) 76.12 parts by weight as a monomer mixture for the second layer, which is a part of the monomer mixture for the core.
- BA butyl acrylate
- 1 part by weight of sodium lauryl sulfate was continuously added as an aqueous solution having a concentration of 5% by weight over 5 hours while dropping the mixture.
- Methyl methacrylate (hereinafter, also referred to as MMA) as a monomer mixture for non-crosslinked shell, 4.0 parts by weight and 6000 parts by weight, and cumene hydride peroxide 0.01 parts by weight.
- the mixture was continuously followed for 1 hour at 50 ° C. After the addition of the mixture, 0.01 part by weight of cumene hydride port peroxide was added, and stirring was further continued for 1 hour to complete the polymerization. At this time, the polymerization conversion of the monomer component was 99.2%.
- a latex of graft copolymer G1 comprising 90% by weight of the core 0 ⁇ ) and 10% by weight of the non-crosslinked shell (bs) was obtained.
- a latex of graft copolymer G1 at a temperature of 5 ° C (100 parts by weight of polymer solids)
- a swirling flow type conical nozzle (nozzle diameter 0.6 mm), which is a type of pressurized nozzle
- a spraying pressure of 3.7 kg / cm 2 so as to form droplets of about 200 / im.
- the solid content of calcium chloride is 5 to 15 parts by weight with respect to 100 parts by weight of the Draft polymer G1 solids.
- spraying was performed so that the droplet diameter was 0.1 to 10 zm.
- the latex droplets of graft copolymer G1 dropped in the tower were filled with a 5% C and 1.0% by weight salt / calcium aqueous solution, and contained coagulated latex particles in a tank. It was recovered as an aqueous solution.
- a 5 wt% potassium palmitate aqueous solution is added to the obtained aqueous solution containing coagulated latex particles, and the graft copolymer G1 solid content is 1.
- a white resin powder of the graft copolymer G1 was prepared by adding 5 parts by weight and heat-treating it, followed by dehydration and drying.
- thermoplastic resin composition preparation of molded article, and evaluation
- Bulle chloride resin (Kanevinyl S-1001, Kanechi Co., Ltd., average polymerization degree 100 0) 100 parts by weight, lead-based one-pack stabilizer (LGC3203, ACROS) 4.5 parts by weight, titanium oxide 4 5 parts by weight, calcium carbonate 8 parts by weight, methyl metatalylate polymer (a solution in which 0.1 g of the polymer was dissolved in 100 ml of black mouth form had a specific viscosity at 30 ° C of less than 0.5 Metatarylate polymer) processing aid (Kaneace PA-20, manufactured by Kanechi Co., Ltd.) 0.5 parts by weight and 6 parts by weight of white resin powder of graft copolymer G1 are blended with a Henshin mixer mixer. To obtain a powder compound.
- the obtained powder compound was kneaded at 180 ° C for 5 minutes using an 8-inch test roll, and then pressed with a 190 ° C press for 15 minutes to obtain a molded product having a thickness of 3. Omm. .
- An impact resistance test piece was prepared from this molded body, and the Charpy strength was measured at a measurement temperature of 23 degrees according to JIS K-7111. Table 1 shows the measurement results of Charpy strength.
- Graft copolymer latex G2 and G3 were prepared in the same manner as in Example 1 except that the shell composition was changed to the composition shown in Table 1, and then graft copolymer latex G2 A white resin powder was prepared in the same manner as in Example 1 except that G3 and G3 were used.
- a molded product was obtained in the same manner as in Example 1 except that the white resin powder of the obtained graft copolymer G2 was used, and the Charpy strength was measured in the same manner as in Example 1. Table 1 shows the Charpy strength measurement results.
- Polymerization up to the first layer of the core (be) of the draft copolymer G4 was carried out in the same manner as the polymerization up to the first layer of the core (be) of the graft copolymer G1 of Example 1.
- the graft copolymer G4 shell (bs), which is the core (be) of the graft copolymer G4 was added to the graft copolymer G4.
- Preparation of L (bs) was carried out.
- the polymerization conversion rate of the monomer component was 99.2%.
- a latex of graft copolymer G4 comprising 90% by weight of core 0 ⁇ ) and 10% by weight of non-crosslinked shell (bs) was obtained.
- the white resin powder of the graft copolymer G4 was prepared from the latex of the graft copolymer G4 in the same manner as the white resin powder of the graft copolymer G1 of Example 1.
- thermoplastic resin composition preparation of molded article, and evaluation
- Table 1 shows the number of parts (parts by weight) of the graft copolymer obtained in Example 1 and Comparative Examples 1, 2, and 3, the composition of each layer of the core, and the glass transition temperature. And volume average particle diameter, core (be) / shell (bs) weight ratio, shell acrylic acid weight ratio, and these graft copolymers blended with vinyl chloride resin in roll press forming. It shows the Charpy strength of the molded body.
- Example 1 shell acrylate 60%
- Comparative Example 1 shell acrylate 5% by weight
- the graft copolymer (B) is defined in the present invention. It can be seen that the impact resistance improvement effect is increased within the range. Further, by comparing Example 1 and Comparative Example 3, it can be seen that when a layer having a glass transition temperature of 20 ° C. or higher is introduced into the core, the impact resistance improving effect is inferior.
- the polymerization up to the first layer of the core (be) of the graft copolymer XG1 was carried out in the same manner as the polymerization up to the first layer of the core (be) of the graft copolymer G1 of Example 1.
- am acrylated rubbery polymer was obtained as the core (be).
- graft copolymer XG1 polymer solid content 100 parts by weight
- a 1.5% strength by weight aqueous solution of sodium alginate (Algitex LL manufactured by Kimikane Earth Co., Ltd.) was added.
- sodium alginate was added so that the solid content was 0.4 parts by weight, and the mixture was stirred and mixed for 3 minutes to prepare a mixed latex of graft copolymer XG1.
- the aqueous solution viscosity at room temperature measured with a B-type viscometer of the 1.5 wt% sodium alginate aqueous solution was 120 m ⁇ Pa ⁇ s.
- the mixed latex of graft copolymer X G1 was prepared in the same manner as the white resin powder of the graft copolymer G1 of Example 1 except that the mixed latex of graft copolymer XG1 at a temperature of 20 ° C was sprayed. From this, a white resin powder of the graft copolymer XG1 was prepared. [0093] (Preparation of thermoplastic resin composition, preparation of molded article, and evaluation)
- thermoplastic resin composition of Example 1 preparation of molded body, and graft copolymer G1 in place of 6 parts by weight of white resin powder
- Graft copolymer XG1 of white resin powder 6 parts by weight A molded product was obtained in the same manner as in Example 1 except that it was blended, and Charpy strength was measured in the same manner as in Example 1. Table 2 shows the Charpy strength results.
- a white resin powder was prepared in the same manner as in Example 2 except that the graft copolymers latex XG2 and XG3 were prepared in the same manner as in Example 2 and then the graft copolymers latex XG2 and XG3 were used.
- Example 2 A white resin powder was prepared in the same manner as in Example 2 except that the graft copolymers latex XG2 and XG3 were prepared in the same manner as in Example 2 and then the graft copolymers latex XG2 and XG3 were used.
- the graft copolymers latex XG2 and XG3 were used.
- the graft copolymer XG4 core (be) acrylated rubbery polymer is mixed with 3.20 parts by weight of MMA and 80.80 parts by weight of BA as a monomer mixture for the non-cross-linked shell.
- a mixture of 0.01 parts by weight of oxide was added continuously at 50 ° C. over 1 hour. After the addition of the mixture was completed, 0.01 part by weight of cumene hydride peroxide was added, and stirring was further continued for 1 hour to complete the polymerization of the shell (bs) of the graft copolymer XG1. At this time, the polymerization conversion rate of the monomer component was 99.6%.
- a latex of graft copolymer XG4 comprising 92% by weight of core (be) and 8% by weight of non-crosslinked shell (bs) was obtained.
- the graft copolymer XG 4 was mixed in the same manner as in the preparation of the white resin powder of the graft copolymer G1 of Example 1 except that the mixed latex of the graft polymer XG4 at a temperature of 20 ° C was sprayed. From the latex, a white resin powder of a graft copolymer XG4 was prepared.
- thermoplastic resin composition preparation of molded article, and evaluation
- a molded product was obtained in the same manner as in Example 2 except that the white resin powder of this graft copolymer XG4 was used, and the Charpy strength was measured. The results are shown in Table 2.
- Table 2 shows the number of parts (parts by weight) of the graft copolymers obtained in Example 2 and Comparative Examples 4, 5, and 6, the composition of each layer of the core, and the glass transition temperature.
- the volume average particle size, the core (be) Z seal (bs) weight ratio, the weight ratio of the acrylate ester of the shell, and a graft copolymer of these graft copolymers in a chlorinated resin are rolled and pressed. Of the molded body Charpy strength.
- Example 2 (60% by weight of acrylic acid ester of the shell), and Comparative Example 4 (acrylic acid esters 20% by weight of the shell), and 5 (acrylic acid ester 5 weight 0/0 of the shell), the Thus, it can be seen that the effect of improving the impact resistance is increased when the graft copolymer (B) is within the range specified in the present invention.
- Example 2 comparing Example 2 with Comparative Example 6, it can be seen that when a layer having a glass transition temperature of 20 ° C. or higher is introduced into the core (bs), the impact resistance improving effect is inferior.
- the polymerization up to the first layer of the core (be) of the graft copolymer YG1 was carried out in the same manner as the polymerization up to the first layer of the core (be) of the graft copolymer G1 of Example 1.
- BA70. 15 parts by weight and AMA 0.35 parts by weight were used as the second layer monomer mixture which is a part of the core monomer mixture.
- the core (be) of the graft copolymer YG1 A second layer of polymerization was performed.
- a ⁇ m acrylate polymer was obtained as the core (be).
- a mixed latex of the graft copolymer YG 1 was prepared in the same manner as in the preparation of the mixed latex of the graft copolymer XG1 of Example 2.
- a white resin powder of the graft copolymer YG1 was prepared in the same manner as the white resin powder of the graft copolymer XG 1 of Example 2.
- thermoplastic resin composition preparation of molded article, and evaluation
- a test piece for Gardner strength measurement was prepared from this molded body, and the Gardner strength was measured at a measurement temperature of 0 ° C. according to ASTM D4226-93. Table 3 shows the measurement results of Gardner strength.
- a latex copolymer YG2 and YG3 were prepared in the same manner as in Comparative Example 7 except that the shell composition was changed to the composition shown in Table 3, and then the graft copolymer latexes YG2 and YG3 were prepared.
- a white resin powder was prepared in the same manner as in Example 2 except that it was used.
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- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
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- Dispersion Chemistry (AREA)
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Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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US12/225,168 US20090227734A1 (en) | 2006-03-16 | 2007-03-13 | Thermoplastic Resin Composition |
JP2008505157A JPWO2007105717A1 (ja) | 2006-03-16 | 2007-03-13 | 熱可塑性樹脂組成物 |
EP07738397A EP1997854A4 (en) | 2006-03-16 | 2007-03-13 | THERMOPLASTIC RESIN COMPOSITION |
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JP2006072815 | 2006-03-16 | ||
JP2006072814 | 2006-03-16 | ||
JP2006-072814 | 2006-03-16 | ||
JP2006-072815 | 2006-03-16 |
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WO2007105717A1 true WO2007105717A1 (ja) | 2007-09-20 |
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PCT/JP2007/054925 WO2007105717A1 (ja) | 2006-03-16 | 2007-03-13 | 熱可塑性樹脂組成物 |
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US (1) | US20090227734A1 (ja) |
EP (1) | EP1997854A4 (ja) |
JP (1) | JPWO2007105717A1 (ja) |
KR (1) | KR20080108122A (ja) |
WO (1) | WO2007105717A1 (ja) |
Citations (9)
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JPS6051737A (ja) * | 1983-08-31 | 1985-03-23 | Mitsubishi Rayon Co Ltd | 耐衝撃性改質剤 |
JPS6146004B2 (ja) * | 1979-05-23 | 1986-10-11 | Kanegafuchi Chemical Ind | |
JPH072957A (ja) * | 1993-06-14 | 1995-01-06 | Kuraray Co Ltd | アクリル系熱可塑性樹脂 |
JPH09286830A (ja) | 1996-04-19 | 1997-11-04 | Kanegafuchi Chem Ind Co Ltd | 多層構造グラフト共重合体及びこれを含有してなる樹脂組成物 |
JP2000053841A (ja) * | 1998-06-02 | 2000-02-22 | Takeda Chem Ind Ltd | 軟質フィルム用艶消し剤およびこれらを含む艶消し軟質フィルム |
WO2001030908A1 (fr) * | 1999-10-25 | 2001-05-03 | Kaneka Corporation | Agents antichoc pour resines thermoplastiques |
JP2002363372A (ja) | 2001-06-11 | 2002-12-18 | Kanegafuchi Chem Ind Co Ltd | 重合体組成物 |
JP2003119396A (ja) | 2001-10-12 | 2003-04-23 | Kanegafuchi Chem Ind Co Ltd | 耐衝撃性の優れた熱可塑性樹脂組成物 |
JP2004269877A (ja) * | 2003-02-21 | 2004-09-30 | Sekisui Chem Co Ltd | アクリル系共重合体ラテックスの製造方法及びそれを用いた塩化ビニル系樹脂の製造方法 |
Family Cites Families (6)
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JPH0774306B2 (ja) * | 1983-08-04 | 1995-08-09 | 三菱レイヨン株式会社 | 熱可塑性樹脂組成物 |
IE57758B1 (en) * | 1983-08-31 | 1993-03-24 | Mitsubishi Rayon Co | Impact modifier and thermoplastic resin compositions using the same |
US5237004A (en) * | 1986-11-18 | 1993-08-17 | Rohm And Haas Company | Thermoplastic and thermoset polymer compositions |
US5089557A (en) * | 1990-03-12 | 1992-02-18 | The Dow Chemical Company | Rubber modified blend of nylon and styrene/acrylonitrile maleic anhydride terpolymer |
ES2176470T3 (es) * | 1995-06-26 | 2002-12-01 | Basf Ag | Composicion polimera nueva para copolimeros de injerto asi como sus mezclas y masas termoplasticas h que los contienen. |
AU758859B2 (en) * | 1998-04-27 | 2003-04-03 | Kaneka Corporation | Resin composition containing multilayered graft polymer |
-
2007
- 2007-03-13 EP EP07738397A patent/EP1997854A4/en not_active Withdrawn
- 2007-03-13 WO PCT/JP2007/054925 patent/WO2007105717A1/ja active Application Filing
- 2007-03-13 US US12/225,168 patent/US20090227734A1/en not_active Abandoned
- 2007-03-13 KR KR1020087024402A patent/KR20080108122A/ko not_active Application Discontinuation
- 2007-03-13 JP JP2008505157A patent/JPWO2007105717A1/ja not_active Withdrawn
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JPS6146004B2 (ja) * | 1979-05-23 | 1986-10-11 | Kanegafuchi Chemical Ind | |
JPS6051737A (ja) * | 1983-08-31 | 1985-03-23 | Mitsubishi Rayon Co Ltd | 耐衝撃性改質剤 |
JPH072957A (ja) * | 1993-06-14 | 1995-01-06 | Kuraray Co Ltd | アクリル系熱可塑性樹脂 |
JPH09286830A (ja) | 1996-04-19 | 1997-11-04 | Kanegafuchi Chem Ind Co Ltd | 多層構造グラフト共重合体及びこれを含有してなる樹脂組成物 |
JP2000053841A (ja) * | 1998-06-02 | 2000-02-22 | Takeda Chem Ind Ltd | 軟質フィルム用艶消し剤およびこれらを含む艶消し軟質フィルム |
WO2001030908A1 (fr) * | 1999-10-25 | 2001-05-03 | Kaneka Corporation | Agents antichoc pour resines thermoplastiques |
JP2002363372A (ja) | 2001-06-11 | 2002-12-18 | Kanegafuchi Chem Ind Co Ltd | 重合体組成物 |
JP2003119396A (ja) | 2001-10-12 | 2003-04-23 | Kanegafuchi Chem Ind Co Ltd | 耐衝撃性の優れた熱可塑性樹脂組成物 |
JP2004269877A (ja) * | 2003-02-21 | 2004-09-30 | Sekisui Chem Co Ltd | アクリル系共重合体ラテックスの製造方法及びそれを用いた塩化ビニル系樹脂の製造方法 |
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See also references of EP1997854A4 * |
Also Published As
Publication number | Publication date |
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JPWO2007105717A1 (ja) | 2009-07-30 |
EP1997854A4 (en) | 2010-04-14 |
EP1997854A1 (en) | 2008-12-03 |
KR20080108122A (ko) | 2008-12-11 |
US20090227734A1 (en) | 2009-09-10 |
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