KR20120060685A - Resin composition and absorbent product therefrom - Google Patents

Abstract

PURPOSE: A resin composition capable of increasing the content of superabsorbent resin is provided to improve dispersity of superabsorbent polymer in product through physical or chemical interaction with a superabsorbent polymer and a silane-modified olefin resin. CONSTITUTION: A resin composition comprises a highly adsorbent resin and a silane-modified olefin resin. The silicon atom content of the silane modified olefin resin is 50-3000 ppm. The comprised amount of the highly adsorbent resin is 50 parts by weight of more, based on 100.0 parts by weight of the resin composition. The content of the silane-modified olefin resin is 50-300 parts by weight based on 100.0 parts by weight the highly absorbent resin. The composition additionally comprises additives selected from a group consisting of a polyolefin, an antioxidant, a plasticizer, a coloring agent, a stabilizer and a surfactant.

Description

Resin composition and absorbent product prepared therefrom {Resin composition and absorbent product therefrom}

Embodiments of the present invention relate to a resin composition and an absorbent article formed therefrom, and more particularly, to a resin composition capable of increasing the content of superabsorbent resin in an absorbent body, and an absorbent material and an article prepared using the same.

Superabsorbent Polymer (SAP) is a functional resin that can absorb water of tens to hundreds of times its own weight and is widely used in various fields such as hygiene products or emission control agents for chemicals. .

Examples of common SAPs are weakly crosslinked hydrophilic polymers such as crosslinked polyacrylates, neutralization of starch-acrylonitrile graft polymers, neutralization of vinyl acetate acrylate ester copolymers, valences of acrylonitrile copolymers The hydrolyzate of a decomposer and an acrylamide copolymer, etc. are mentioned. Such SAP may be prepared by aqueous solution polymerization, suspension polymerization, reverse phase suspension polymerization, etc., and is currently commercialized in various ways.

According to the recent trend to ultra-thin and light-weight products such as hygiene products or other control agents, it is desirable to increase the ratio of the absorbent resin, ie, SAP, in the absorbent body. However, conventionally, due to the characteristics of the plastic material itself, it is difficult to fully express the function of SAP, and there are many limitations on the application of absorbers containing a high amount of SAP.

In addition, SAP fine particles are generated as a by-product in the manufacturing process of SAP, and there is a problem regarding processing such derivatives of SAP. Differentiation of SAP is the same as SAP, but its size is difficult to use. Accordingly, there are attempts to recycle the fine powder to the manufacturing process or to mix the pulp with a pulp, etc., but it is not efficient in terms of time and cost.

The problem to be solved by the embodiments of the present invention is to provide a resin composition that can extend the field of application of SAP.

Another object of embodiments of the present invention is to provide an absorbent product prepared using the resin composition and an absorbent article including the absorbent material.

Aspects according to one embodiment of the present invention include a super absorbent polymer (SAP); And a silane-modified olefin resin.

An aspect according to another embodiment of the present invention relates to an absorbent body comprising the resin composition.

Aspects according to another embodiment of the present invention relate to an absorbent article made using the absorbent body.

The resin composition according to embodiments of the present invention may increase the dispersibility of SAP in a product through physical or chemical interaction with the silane-modified olefin resin and SAP. Therefore, according to embodiments of the present invention, it is possible to increase the content of SAP in the product, and in particular, it is possible to increase the possibility of utilizing the derivative of SAP, which has been difficult to use conventionally. In addition, according to embodiments of the present invention, it is possible to prevent the phenomenon that SAP is separated and desorbed in the product after water absorption. Accordingly, according to embodiments of the present invention, it is possible to provide a product having excellent functionality such as absorbency and excellent physical properties such as durability.

Hereinafter, embodiments of the present invention will be described in more detail. In describing the present invention, detailed descriptions of related general configurations or functions will be omitted.

One embodiment of the present invention provides a resin composition comprising a superabsorbent polymer (SAP) and a silane-modified olefin resin.

That is, the resin composition according to one embodiment of the present invention includes SAP, and may include one having a predetermined level or more as the SAP, and may include fine particles thereof. Specifically, it may include only one of SAP or its derivatives, or a mixture of both. Derivatives of SAP are by-products of the production of SAP and are SAP particles, which typically have an average diameter of less than about 180 μm. In the following description, the description of SAP is equally applicable to the derivative of SAP, and it is assumed that the derivative of SAP is included as a kind of SAP.

The specific kind of super absorbent polymer (SAP) included in the resin composition according to the embodiments of the present invention is not particularly limited, and materials commonly known in the art may be used. One example of such an SAP is a partially or fully neutralized acid absorbent resin, ie anionic SAP. Anionic SAPs that are strongly acidic or slightly acidic may be resins that act as SAP particles in their neutralized form, and such acid absorbent resins generally contain carboxylic acid, sulfonic acid, phosphonic acid, phosphoric acid or sulfuric acid residues. Such acid absorbent resins may be a single resin or a resin mixture, or may be homopolymers or copolymers.

Acidic absorbent resins are generally crosslinked acrylic resins such as lightly crosslinked polyacrylic acid and the like. Weakly crosslinked acidic resins are generally exemplified by internal crosslinkable monomers, for example acidic monomers containing acyl moieties in the presence of polyfunctional organic compounds, for example acrylic acid or monomers containing moieties which can provide acid groups. For example, it may be prepared by polymerizing (meth) acrylamide, alkyl (meth) acrylate or acrylonitrile. The acid absorbent resin may contain other copolymerizable monomers known in the art, such as monoethylenically unsaturated monomers, if the polymer contains a certain level of acidic monomer units. In this case, the content of the acidic monomer may be at least 50% by weight, preferably at least 70% by weight of the total monomers.

The olefinically unsaturated carboxylic acid and carboxylic anhydride monomers that can be used for acidic absorbent resin polymerization include acrylic acid, methacrylic acid, ethacrylic acid, maleic acid or maleic anhydride, and the like. Aliphatic and aromatic vinyl sulfonic acids such as vinylsulfonic acid, allylsulfonic acid, styrene sulfonic acids, acrylics and methacrylic sulfonic acids such as 2- (meth) acrylamide-2-methylpropane sulfonic acid and the like. In addition, monomers having a polymerizable unsaturated group such as olefinically unsaturated amines, olefinically unsaturated phosphate esters or olefinically unsaturated amides may be used.

Specific examples of the acid-absorbing resin polymerized in this way include a hydrolyzate of a starch-acrylonitrile graft copolymer, a starch-acrylic acid graft copolymer, a polyacrylic acid, a vinyl acetate acrylate ester copolymer, a hydrolyzate of an acrylonitrile copolymer, Hydrolysates of acrylamide copolymers, ethylene-maleic anhydride copolymers, isobutylene-maleic anhydride copolymers, polyvinylsulfonic acids, polyvinylphosphonic acids, polyvinylphosphoric acids, polyvinylsulfuric acids, sulfonated polystyrenes or polyacrylates The salt of any of the above, such as a salt, can be mentioned, and 1 type, or 2 or more types of these can be used.

Similarly to the acidic absorbent resin, another example of SAP that can be used as the superabsorbent polymer of the present invention includes a basic absorbent resin, that is, a cationic SAP. Strong or weakly basic cationic SAPs can be resins that act in their charged form, such basic absorbent resins can be present in cationic form, and basic residues such as amino groups can be present in charged form. Strongly basic resins may generally be present in hydroxide or bicarbonate form. Such basic absorbent resins may be a single resin or a mixture of resins or may be homopolymers or copolymers.

The basic absorbent resin may generally be a lightly crosslinked resin, for example poly (vinylamine) or poly (dialkylaminoalkyl (meth) acrylamide). Specifically, for example, lightly crosslinked polyethyleneimine, poly (allylamine), poly (allylguanidine), poly (dimethyldiallylammonium hydroxide), polystyrene derivatives, guanidine-modified polystyrene, and the like can be given. The weakly crosslinked basic absorbent resin may contain other copolymerizable monomers as described above in the acidic absorbent resin, and may be crosslinked using a polyfunctional organic compound.

Specific examples of such basic absorbent polymers include poly (vinylamine), polyethyleneimine, poly (vinylguanidine), poly (dimethylaminoethyl acrylamide) or poly (dimethylaminopropyl methacrylamide), and the like. One kind or a mixture of two or more kinds thereof may be used.

Each of the acid absorbent resin and the basic absorbent resin may be used alone or in combination of two or more kinds thereof. However, when the acid absorbent resin and the basic absorbent resin are mixed, the composition is chemically unstable, so the acid and basic absorbent resins may not be used together. It is preferable not to.

Polymerization of such absorbent resins is generally carried out by the free radical method in the presence of a polyfunctional crosslinkable monomer, crosslinked to a sufficient extent to make the polymer water insoluble, and acidic or basic absorbent resins for use in absorption applications. Is weakly crosslinked. In preparing the SAP, conventional polymerization initiators used in the art may be used, and other additives such as dispersants may also be used. The production method of such SAPs include aqueous solution polymerization, suspension polymerization, reverse phase suspension polymerization, and the like, and are not particularly limited, and methods commonly used in the art may be used. In addition, such SAPs are commercialized, manufactured, and sold by various sellers, and the SAPs used in the present invention may be purchased by using commercially available products.

Embodiments of the present invention include a silane-modified olefin resin with SAP as described above. The silane-modified olefin resin may be, for example, an olefin resin having a reactive silyl group represented by Formula 1 below. As used in embodiments of the present invention, the term "reactive silyl group" means a silyl group having a reactive functional group capable of physical or chemical interaction with SAP, or a functional group capable of providing such a functional group.

[Formula 1]

-Si (X) _m Y _(3-m)

In Formula 1, X represents a reactive functional group bonded to a silicon atom, Y represents a non-reactive functional group bonded to a silicon atom, and m represents an integer of 1 to 3.

In the above, the reactive functional group (X) is not particularly limited as long as it can chemically or physically interact with residues present on the surface of the SAP or can provide such a functional group. Specific examples thereof include a halogen atom, an alkoxy group, It may be a phenoxy group, acyloxy group, alkylthio group, alkyleneoxythio group or a hydrolyzate of any of the above. In this case, examples of the halogen atom include chlorine (Cl), and examples of the alkoxy group include an alkoxy group having 1 to 20 carbon atoms, 1 to 12 carbon atoms, 1 to 8 carbon atoms or 1 to 4 carbon atoms, Examples of the acyloxy group include an acyloxy group having 1 to 12 carbon atoms, and examples of the alkylthio group include an alkylthio group having 1 to 12 carbon atoms, and examples of the alkyleneoxythio group include an alkyleneoxythio group having 1 to 12 carbon atoms. Alkyleneoxythio group is mentioned. In embodiments of the present invention, X in Chemical Formula 1 may preferably be alkoxy, specifically, an alkoxy group having 1 to 12 carbon atoms, preferably 1 to 8 carbon atoms, more preferably 1 to 4 carbon atoms. For example, a methoxy group, an ethoxy group, a propoxy group, an isopropoxy group, butoxy group etc. are mentioned, Preferably a methoxy group or an ethoxy group etc. are mentioned. The specific kind of hydrolyzate of the reactive functional group is not particularly limited depending on the kind of the functional group used, and may be, for example, a hydroxy group.

In addition, the non-reactive functional group of Formula 1 may be hydrogen, an alkyl group, an aryl group or an aralkyl group. In the above, the alkyl group may be, for example, an alkyl group having 1 to 12 carbon atoms, 1 to 8 carbon atoms or 1 to 4 carbon atoms. Further, the aryl group in Y may be an aryl group having 6 to 18 carbon atoms, preferably 6 to 12 carbon atoms, for example, a phenyl group, and an aralkyl group having 7 to 19 carbon atoms, preferably an aralkyl having 7 to 13 carbon atoms, For example, it may be a benzyl group.

In one embodiment of the present invention, the olefin resin as described above is prepared by copolymerizing an unsaturated silane compound capable of providing, for example, an olefinic monomer and the silyl group represented by Chemical Formula 1 above, or an unsaturated silane compound as described above in an olefin resin. It can also be prepared by grafting.

That is, in the embodiments of the present invention, the olefin resin may include a copolymer including an olefin monomer and an unsaturated silane compound represented by Formula 2 in a copolymerized form; Or a graft polymer obtained by grafting an unsaturated silane compound represented by Formula 2 to an olefin resin.

[Formula 2]

DSi (X) _m Y _(3-m)

In Formula 2, D is an ethylenically unsaturated hydrocarbon group or a hydrocarbon oxy group, and X, Y and m are as defined in Formula 1 above.

In embodiments of the present invention, D in Formula 2 may be vinyl, allyl, isopropenyl, butenyl, cyclohexenyl or γ-methacryloxypropyl, and the like, preferably vinyl.

Specific examples of the unsaturated silane compound may be vinyl alkoxy silane. For example, the unsaturated silane compound may be vinyltrimethoxysilane, vinyltriethoxysilane, vinyltripropoxysilane, vinyltriisopropoxysilane, vinyltributoxysilane, vinyltripentoxysilane, vinyltriphenoxy Silane, vinyltriacetoxy silane or mixtures thereof.

Further, in the embodiments of the present invention, examples of the olefin monomer included in the copolymerized form of the resin or included in the olefin resin forming the graft polymer include ethylene, propylene, 1-butene, 1-pentene, 1-hexene , 1-heptene, 1-octene, 1-nonene, 1-decene, 4-phenyl-1-butene, 6-phenyl-1-hexene, 3-methyl-1-butene, 4-methyl-1-butene, 3 -Methyl-1-pentene, 4-methyl-1-hexene, 5-methyl-1-hexene, 3,3-dimethyl-1-pentene, 3,4-dimethyl-1-pentene, 4,4-dimethyl-1 Α-olefins such as pentene or vinylcyclohexane, dienes such as 1,3-butadiene, 1,4-butadiene and 1,5-hexadiene, hexafluoropropene, tetrafluoroethylene, 2-fluoro Halogen-substituted α-olefins such as roprofen, fluoroethylene, 1,1-difluoroethylene, 3-fluoropropene, trifluoroethylene or 3,4-dichloro-1-butene, cyclopentene, cyclo Hexene, norbornene, 5-methylnorbornene, 5-ethylnorbornene, 5-propylnorbornene, Cyclic olefins such as 5,6-dimethylnorbornene or 5-benzylnorbornene, but are not limited thereto.

In embodiments of the present invention, the silane-modified olefin resin may preferably be a graft polymer in which the unsaturated silane compound of Formula 2 is grafted onto an olefin resin, in which case the olefin resin may be, for example, polyethylene , Polypropylene or ethylene-vinylacetate copolymer, preferably polyethylene.

The polyethylene comprises a homopolymer of ethylene as well as at least 50 mol% or more of ethylene as a polymerized unit, together with an α-olefin having 3 or more carbon atoms or other comonomers as polymerized units. Coalescing may also be included. The polyethylene may be, for example, one kind or two or more kinds of low density polyethylene, medium density polyethylene, high density polyethylene, ultra low density polyethylene, ultra low density polyethylene, or linear low density polyethylene.

In the present invention, polyethylene having a large number of side chains can be preferably used as the polyethylene to which the unsaturated silane compound is grafted. Grafting can be made more efficiently with polyethylene with more side chains. Polyethylene with many side chains is generally low in density, and polyethylene with few side chains is generally high in density. Therefore, in the present invention, it is preferable to use polyethylene of low density, specifically, a polyethylene having a density of 0.85 g / cm ³ to 0.92 g / cm ³ , preferably a density of about 0.85 g / cm ³ to 0.90 g / cm ³ Can be used.

In addition, the polyethylene may have a melt flow rate (MFR) of about 0.1 g / 10 minutes to about 50 g / 10 minutes at 190 ° C. When having the MFR in this range, for example, the resin composition of the present invention can exhibit excellent moldability and the like.

The silane-modified olefin resin included in the resin composition according to embodiments of the present invention may have a content of 50 ppm to 3000 ppm of silicon in the copolymer or graft polymer. Within the above content range, the reactivity with SAP can be properly maintained without harming other physical properties of the absorber.

In the resin composition according to embodiments of the present invention, the SAP may be included in an amount exceeding 50 parts by weight based on 100 parts by weight of the total resin composition. In general, the content of SAP in the absorber in the prior art was limited to 30% to 40% by weight, but according to an embodiment of the present invention using a silane-modified olefin resin, such a large amount of SAP Can be included. In addition, in the prior art, in the case of fine particles of SAP having a small particle size, the degree of desorption from the absorber is large, so that the utilization thereof is low, but when the silane-modified olefin resin is included as in the embodiments of the present invention, the SAP-silane-modified olefin resin Due to physical and chemical interactions, even small derivatives of SAP particles can be utilized. The above content is only one example of the present invention, which may vary depending on the application to which the product is applied. Unless otherwise specified, unit weight parts herein means weight ratios.

In addition, the content of the silane-modified olefin resin in the resin composition according to embodiments of the present invention may be 50 parts by weight to 300 parts by weight with respect to 100 parts by weight of the SAP, without harming other physical properties within this range, SAP Reactivity with can be maintained appropriately.

The resin composition according to embodiments of the present invention may further include an additive selected from the group consisting of an additive polyolefin, an antioxidant, a plasticizer, a colorant, a stabilizer, and a surfactant.

Another embodiment of the present invention relates to an absorbent material, that is, an absorber, comprising the resin composition. The absorber may include the above-described resin composition, in which case the silane-modified olefin resin of the resin composition may replace the fiber role of the existing absorber.

The method for producing the absorbent body using the water absorbent resin composition is not particularly limited, and a method commonly used may be used. Specifically, for example, an extruder or a batch mixer may be used to mix the SAP and the silane-modified olefin resin, and may be molded into a sheet or a film by using a T-die or calendaring.

In the case of the conventional absorbent, the fiber or pulp content is generally higher than that of the absorbent resin, and the ratio of the fiber and the absorbent resin is generally about 6: 4. However, in the case of the absorbent according to the embodiments of the present invention, the silane-modified olefin resin is contained. The ratio of superabsorbent polymer (SAP) may be exceeded by 50 parts by weight based on 100 parts by weight of the total absorbent by the resin composition.

In addition, in the case of the conventional absorbent, the particle size is less than a certain level from the fiber in the absorbent, so that the degree of desorption is low, so the fine powder of SAP is low in utilization. Physical and chemical interactions with and can prevent the desorption even after water absorption, so there is an advantage that the fine powder of SAP, which is a small SAP particle below a certain level, which is low in conventional utilization, can be utilized.

Therefore, in the case of an absorber manufactured using the resin composition according to the embodiments of the present invention, the content of SAP is increased to improve absorbency, and between the residues such as carboxylic acid on the surface of SAP, particularly SAP, and the silane-modified olefin resin. It is characterized by physical and chemical binding (Binding) to improve the durability by preventing the SAP and the like after absorbing the moisture, and then detached and detached.

In addition, the absorbent body according to the embodiments of the present invention may further include fibers as necessary. In this case, the fiber may include at least one selected from the group consisting of pulp, cotton, polyamide fiber, acrylic fiber, polyester fiber, and combinations thereof, in addition to those used in the art without limitation. Can be.

Absorbents according to embodiments of the present invention can be used in any suitable absorbent article. For example, it can be used in various absorbent products such as hygiene products such as diapers, pants for incontinence, feminine menstrual products, moisture retaining agents, dehydrating agents, sludge flocculants, disposable bathroom mats, or release control agents of various chemicals. For example, in the case of a general sanitary and sanitary ware, it is composed of several layers, which may be substantially composed of a liquid permeable layer, a distribution layer or a delivery layer, an absorber, and a waterproof layer surrounding them, and an adhesive is added between the layers. Can be.

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to Examples, but the following Examples are merely for the purpose of explanation and are not intended to limit the protection scope of the present invention.

Manufacturing example  1 to 2: Silane  Preparation of Modified Olefin Resins

Dicumyl peroxide as a free radical generator, polyolefin for polymerization, vinyltrimethoxy silane (VTMS) having a density of 0.87 g / cm ³ and a MFR (Melt Flow Rate) at 5.0 ° C./10 min at 190 ° C., as shown in Table 1 below. The mixture was mixed and heated and stirred at 200 ° C. to prepare a silane-modified olefin resin.

Polyolefin Vinyltrimethoxysilane Dicumyl Peroxide Si content (pm) Preparation Example 1 100 0.5 0.01 500 Production Example 2 100 2 0.02 2100

* The reacted Si element content is measured by inductively coupled plasma spectrophotometer (ICP-OES).

Example  1 to 2

100 parts by weight of the crosslinked polyacrylate salt having a particle size of less than 180 μm, 50 parts by weight of the silane-modified olefin resin obtained in Preparation Examples 1 and 2 and 0.1 part by weight of antioxidant (Ig1010) were equipped with a T-die having a temperature of 160 ° C. 0.5 mm sheet was manufactured by mixing and extruding in a German haake extruder. After drying the prepared sheet in a hot air oven for about 1 hour to evaluate the moisture absorption and the desorption weight of SAP.

Comparative example  One

A sheet was manufactured in the same manner as in Example 1, except that 50 parts by weight of an olefin resin having a density of 0.87 g / cm ³ and an MFR of 5.0 g / 10 min at 190 ° C. was used.

Comparative example  2

A sheet was manufactured in the same manner as in Comparative Example 1 except that 50 parts by weight of an olefin resin having a density of 0.93 g / cm ³ that was not modified with olefin resin was used.

Experimental Example  1-2: property evaluation

1) Absorbency Evaluation

The sheets prepared from the resin compositions obtained in Examples 1 and 2 and Comparative Examples 1 and 2 were held in water at 25 ° C. for 5 minutes to quantify the amount of water absorbed to measure the absorbency (g / g).

Absorption capacity (g / g) = (absorbed sample weight-initial weight) / initial weight

2) Evaluation of the Desorption Degree of SAP After Water Absorption

A sheet prepared from the resin compositions obtained in Examples 1 and 2 and Comparative Examples 1 and 2 was stirred at 800 rpm for 5 minutes in a 1 liter beaker filled with 25 ° C. water, and the resulting sample was dried for 5 hours in a 100 ° C. oven to change the weight. Quantitative determination of the degree of desorption was performed.

Desorption degree (%) = (initial weight-weight after drying) / initial weight × 100

SAP Silane-Modified Olefin Polyolefin Absorption capacity (g / g) Desorption degree (%) Example 1 100 50 - 20 3 Example 2 100 50 - 23 One Comparative Example 1 100 - 50 18 60 Comparative Example 2 100 - 100 2 20

Referring to Table 2, in the case of the sheet manufactured using a resin composition containing a silane-modified olefin resin (Examples 1 and 2), the absorbent sheet was excellent because of its excellent absorbency and low desorption degree of SAP after moisture absorption. On the contrary, in the case of the sheet prepared using the resin composition not containing the silane-modified olefin resin (Comparative Examples 1 to 2), the absorption ability was lowered and the degree of desorption of SAP was large.

Although the present invention has been described in detail with reference to preferred embodiments of the present invention, these are merely exemplary, and those skilled in the art to which the present invention pertains have various modifications and equivalents therefrom. It will be appreciated that embodiments are possible. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

Claims (18)

Super absorbent polymers; And
Resin composition containing a silane-modified olefin resin. The method of claim 1, wherein the super absorbent polymer is a hydrolyzate of a starch-acrylonitrile graft copolymer, a starch-acrylic acid graft copolymer, a polyacrylic acid, a vinyl acetate acrylic acid ester copolymer, a hydrolyzate of an acrylonitrile copolymer, and an acryl. Hydrolyzate of amide copolymer, ethylene-maleic anhydride copolymer, isobutylene-maleic anhydride copolymer, polyvinylsulfonic acid, polyvinylphosphonic acid, polyvinylphosphoric acid, polyvinylsulfuric acid, sulfonated polystyrene, and any of the above At least one resin composition selected from the group consisting of one salt. The method of claim 1, wherein the superabsorbent polymer is poly (vinylamine), poly (dialkylaminoalkyl (meth) acrylamide), polyethyleneimine, poly (allylamine), poly (allyguanidine), poly (dimethyldiallyl Ammonium hydroxide), a polystyrene derivative and a guanidine-modified polystyrene. The resin composition according to claim 1, wherein the silane-modified olefin resin is an olefin resin having a reactive silyl group represented by the following general formula (1):
[Formula 1]
-Si (X) _m Y _(3-m)
In Chemical Formula 1,
X is bonded to a silicon atom and represents a halogen atom, an alkoxy group, a phenoxy group, an acyloxy group, an alkylthio group, an alkyleneoxythio group or a hydrolyzate of any of the above,
Y is bonded to a silicon atom and represents hydrogen, an alkyl group, an aryl group, or an aralkyl group,
m represents the integer of 1-3. The method of claim 1, wherein the silane-modified olefin resin is a copolymer comprising an olefin monomer and an unsaturated silane compound represented by the following formula (2) in copolymerized form; Or a graft polymer obtained by grafting an unsaturated silane compound represented by Formula 2 to an olefin resin:
(2)
DSi (X) _m Y _(3-m)
In Formula 2,
D is an ethylenically unsaturated hydrocarbon group or hydrocarbon oxy group bonded to a silicon atom, and X is a halogen atom, an alkoxy group, a phenoxy group, an acyloxy group, an alkylthio group, an alkyleneoxythio group or a hydrolyzate of any of the above. Indicate,
Y represents hydrogen, an alkyl group, an aryl group or an aralkyl group,
m represents the integer of 1-3. The resin composition of Claim 5 whose said unsaturated silane compound is vinyl alkoxy silane. The resin composition according to claim 5, wherein the olefin resin is polyethylene. The resin composition of claim 7, wherein the polyethylene has a density of 0.85 g / cm ³ to 0.92 g / cm ³ . The resin composition of Claim 1 whose content of the silicon atom in the said silane modified olefin resin is 50-3000 ppm. The resin composition of claim 1, wherein the super absorbent polymer is contained in an amount of more than 50 parts by weight based on 100 parts by weight of the total resin composition. The resin composition according to claim 1, wherein the content of the silane-modified olefin resin is 50 parts by weight to 300 parts by weight based on 100 parts by weight of the superabsorbent resin. The resin composition of claim 1, wherein the composition further comprises an additive selected from the group consisting of polyolefins for addition, antioxidants, plasticizers, colorants, stabilizers, and surfactants. An absorbent body comprising the resin composition according to any one of claims 1 to 12. The absorbent body of claim 13, wherein the absorbent body comprises a super absorbent polymer in an amount exceeding 50 parts by weight based on 100 parts by weight of the total absorbent material. The absorbent body of claim 13 wherein the absorbent body further comprises a fiber. The absorbent according to claim 15, wherein the fiber is at least one member selected from the group consisting of pulp, cotton, polyamide fiber, acrylic fiber and polyester fiber. Absorbent article made using the absorbent according to claim 13. 18. The absorbent article as in claim 17, wherein said absorbent article is a hygiene article, a hygiene article, a moisture retainer, a dehydrating agent, a sludge flocculant, a disposable bathroom mat, or a chemical release control agent.