JPH03119017A - Resin composition for foaming, foam and structure - Google Patents

Abstract

PURPOSE:To obtain the title composition having excellent flameretardant characteristics, strength, etc., containing an aqueous solution of saccharide, polyol, tris(hydroxyethyl) isocyanurate, reaction catalyst, isocyanate, etc. CONSTITUTION:The objective composition containing an aqueous solution and/or slurry (preferably 5-25wt.% water content) of a saccharide (e.g. fructose or glucose), a polyol (having preferably 200-1,500 molecular weight), tris(2- hydroxyethyl) isocyanurate shown by the formula, a reaction catalyst (e.g. dibutyltin dilaurate), an isocyanate compound (e.g. tolylene diisocyanate) and optionally a foam stabilizer (e.g. silicone polymer), a flame retardant [e.g. tris(2- chloroethyl) phosphate] and/or a blowing agent (e.g. monofluorotrichloromethane).

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to a foam and structure made of a foaming resin composition 1 that produces a foam with excellent flame retardant properties, strength, and the like.

(Prior art) Recently, flame retardant requirements for building materials, especially residential exterior wall materials, have become more severe, and the model box test No. 1372 has been added to the semi-flammability test No. 1231 of the Ministry of Construction. It has come to pass. This Ministry of Construction Notification No. 1372 Model Box Test satisfies the regulation values of afterflame, temperature, time area, 9 smoke generation coefficient in the same No. 1231 quasi-nonflammability test, and then increases the size of the test specimen to determine the amount of heat generated during combustion, This is a very difficult process that involves determining the shape after combustion.

Conventionally known are isocyanurate foams having isocyanurate rings (a type of polyurethane foam) that are foamed using industrial polyol as a raw material, phenol foams, foams that are foamed using carbohydrates as raw materials, and the like.

(Problems to be Solved by the Invention) Structures using conventional isocyanurate foams having isocyanurate rings made from industrial polyol as a raw material undergo significant shape change after combustion and generate a large amount of heat. It is difficult to pass the model box test No. 1372.

On the other hand, structures using phenol foams do not change their shape after combustion, but have the disadvantage of having a long afterflame time after combustion. When switching the manufacturing equipment used to mold isocyanurate foams having isocyanurate rings to molding phenol foams, change the heating device during and after foaming to a device that can heat at high temperatures and for a long time. Furthermore, the method for producing phenol foam using this equipment is also extremely inefficient. Additionally, phenol foam has poor adhesion to iron plates.

There are also problems in terms of physical properties, such as brittleness and high water absorption. On the other hand, the flame retardance of structures using foams made from carbohydrates has improved somewhat compared to structures using isocyanurate foams made from industrial polyols, but it is still insufficient. Furthermore, as a result of improving flame retardancy, there are negative effects such as a decrease in strength (bending strength) and an increase in water absorption. As an attempt to improve strength and water absorption, there is a method of reducing the water content in carbohydrates.

In this case, if the moisture content is less than 20% by weight, the viscosity becomes extremely high, crystallization occurs when ingested, and it becomes paste-like, resulting in significant problems in handling and workability. Problems such as blockages were occurring.

The present invention has been made in view of these problems, and has the following features:
A foaming resin composition that provides a foam with a working viscosity (resin viscosity) comparable to that of polyurethane, excellent flame retardancy, high strength (high bending strength), and low water absorption, and a foam using the same. and structures.

(Means for Solving the Problems) The present invention provides an aqueous solution and/or slurry polyol of carbohydrates, tris (2-hydroxyethyl) isocyanurate,
A foaming resin composition containing a reaction catalyst, an isocyanate compound, and, if necessary, a foam stabilizer, a flame retardant, and/or a foaming agent, a foam obtained from this foaming resin composition, and this foaming resin composition. The present invention relates to a structure formed by providing a plate or sheet on at least one side of a foam obtained from a product.

The aqueous solution and/or slurry of carbohydrates used in the present invention includes monosaccharides such as fructose (fructose), xylose.

Mannose, disaccharides such as sucrose, maltose, lactose, sugar derivatives such as sorbitol, mannitol, arabitol,
An aqueous solution in which sugar alcohols such as xylit, glucosides such as methyl glycoside, etc. are dissolved singly or in combination of two or more in water.

It is a slurry in which these are dispersed in water, or a mixture of an aqueous solution thereof and a slurry. Commercially available products include Suncraft 550 manufactured by Oji Cornstarch Co., Ltd. and Kogyo Co., Ltd.

Oji Cornstarch Co., Ltd. #HC is an aqueous solution of fructose, grape sugar and other sugars, and Sanmatsu Kogyo Co., Ltd.'s Suncraft 550 is an aqueous solution of fructose, glucose and oligosaccharides.

In addition, Revros 5F-A (aqueous solution of fructose) manufactured by Dai-ichi Kogyo Seiyaku Co., Ltd., Revros 20K (solid), Sorbit D-70 manufactured by Towa Kasei Kogyo Co., Ltd., Sorvit W-70 (aqueous solution of sorbit), Xyliso) (solid), Mannit P (
(solid), sugar alcohols such as Mannit S (solid), xylose XL (solid), Multi Towa (aqueous sugar solution) P〇-Towa (aqueous solution of saccharified starch powder)
.

Sanmatsu Kogyo Co., Ltd. Kokrysta (glucose, solid).

LG-85 (glucose aqueous solution) manufactured by Nissin Pharmaceutical Industries Co., Ltd. Some products such as sucrose are commercially available in solid form, but these may also be used in the form of an aqueous solution and/or slurry. Fructose, high fructose.

Particularly preferred are aqueous solutions and/or slurries of norbit, xylit or mixtures thereof.

The water content in the aqueous solution and/or slurry of carbohydrates is not particularly limited, but is preferably 5 to 25% by weight. If it exceeds 25% by weight, the strength of the foam decreases, and if it exceeds 5% by weight, the viscosity tends to be high and workability tends to decrease.

The polyol used in the present invention is an alcohol generally used in polyurethane synthesis, such as ethylene glycol as a dihydric alcohol.

Diethylene glycol, neopentyl glycol.

1, 3-7" ethylene glycol, 1,6-hexanediol, etc., trihydric or higher alcohols include glycerin, etc.)
IJ Methylolpropane, Pentaelite.

Sorbitol and the like are used, and polyester polyols and polyether polyols obtained from these, aromatic polyamines, and alkylene oxide adducts of bisphenol A can also be used. These may be used alone or in combination.

There is no particular restriction on the molecular weight of the polyol, but it is between 200 and 40.
The range of 00 is preferable, and the range of 200 to 1500 is particularly preferable. As the molecular weight of the polyol increases, its compatibility with carbohydrates decreases, resulting in a decrease in fluidity and a tendency for density to increase.

Addition of the above-mentioned polyol improves the properties of the foam, such as increasing the strength of the foam and lowering the water absorption rate of the foam, without increasing the smoking coefficient or combustion temperature.

The tris(2-hydroxyethyl) isocyanurate used in the present invention is a compound represented by the following formula: CHzOH This can significantly improve the strength of the foam without reducing its flame retardance. A commercially available product is Nissan Chemical Industries, Ltd. TI (EIC).

As the reaction catalyst in the present invention, tin compounds such as dibutyltin dilaurate and dibutyltin dioctoate,
Amine compounds such as triethylamine, triethylenediamine, triethanolamine, 2-dimethylamino-2-methyl-1-propanol, 2-amino-2-methyl-1-propanol, cobalt naphthenate, calcium naphthenate, Organic metals such as copper naphthenate, manganese naphthenate, and dibutyltin dilaurate are used.

The isocyanate compound in the present invention includes:

There are no particular limitations.2 For example, monoisocyanate compounds such as phenyl isocyanate, tolylene diisocyanate,
Hexamethylene diisocyanate.

naphthalene diisocyanate, isophorone diisocyanate, diphenylmethane-44'-diisocyanate,
Diisocyanate compounds such as rose phenylene diisocyanate, triisocyanate compounds such as triphenylmethane-4,4',4''-triisocyanate, and low-molecular or high-molecular NCO-terminated preforms derived from these isocyanates.

Rimmer etc. are used.

As the foam stabilizer used as necessary in the present invention, silicone polymer 9 L manufactured by Nippon Unicar Co., Ltd.
-520, L-540, L-5340゜L-5350,
L-5410, L-5430, 190, 191, 193° manufactured by Go Corning Co., Ltd. Rate Silicon Co., Ltd.
s:E(-193,8F2931.5H2933,8H
-190, 8RX298, etc.

The flame retardants used as necessary in the present invention include Hatris (2-chloroethyl) phosphate, ) Lis (2-chloropropyl) phosphate, and! Xylated paraffin, hexabromobenzene.

Asahi Denka Co., Ltd. FC-450, FC-330°FL-
500, Inuhachi Chemical Co., Ltd. CR-104゜Dainippon Ink RF-420, RF-1020゜RN-660,R
N-720, Mobil Chemical Co., Ltd. Vircol
82. Phyroll 6, U manufactured by Stouffer Chemical Co.
CC N1axRO-350° Kasei Atsubujo/Isonol 36. Organic flame retardants such as Olin MRF-230, antimony trioxide, aluminum hydroxide, hydrated magnesia.

There are inorganic flame retardants such as silicon oxide and water glass, and these can be used alone or in combination.

In addition, in order to improve workability such as viscosity of the composition and obtain a foam with a high expansion ratio, a low boiling point solvent such as monofluorotrichloromethane or trifluorotrichloroethane is used as a blowing agent as necessary. It is also possible. Commercially available products include Freon 11 (boiling point 23.8°C) and Freon 113 (boiling point 47.6°C) manufactured by DuPont Mitsui Fluorochemical Co., Ltd.

Furthermore, a foam can be obtained using the foaming resin composition of the present invention, and a structure including this foam can also be obtained. When building a structure, a plate or sheet is provided on at least one side of the foam, and this plate or sheet may include aluminum kraft paper, aluminum foil,
Gold such as copper foil, metal foil, aluminum asbestos sheet, wood wool cement board.

Metal plates such as iron plates, steel plates, stainless steel plates, aluminum plates, copper plates, slate plates, calcium silicate plates.

Inorganic noncombustible boards such as gypsum board, cement board, glass fiber reinforced cement board, glass fiber reinforced plastics (FR
P) A flame-retardant or non-flammable plate or sheet such as a plate is preferable.

These flame-retardant or noncombustible boards or sheets may be painted for reasons such as appearance or corrosion prevention. It is necessary to take into account the material of the paint used for painting and the thickness of the paint film so as not to reduce its flame retardance, but as long as the paint film is thin, there is no particular restriction on the material. Even iron plates can be used as sufficiently nonflammable plates.

Although there is no particular restriction on the blending ratio of the present invention, (a) 50 to 200 parts by weight of an aqueous solution and/or slurry of carbohydrates (b) 5 to 100 parts by weight of polyol (C)
) Lis(2-hydroxyethyl)isocyanurate
5-100 (dl reaction catalyst 0.1-6(e)
Isocyanate compound 50-200 (fl Foam stabilizer (selective) 0.1-5 (gl Flame retardant (selective) 0.1-100 (h) Foaming agent (selective) Use in a ratio of 5-150 is preferable (al sugar aqueous solution and/or slurry 10-150
Weight part (b) Polyol 10-100 (c) Tris(2-hydroxyethyl) isocyanurate
2-40 1(d) Reaction catalyst
0.5-4I(e) Isocyanate compound 50-150 1 (fl Foam stabilizer (selective) 0.5-4I(g) Flame retardant (selective) 5-50 1(h) Foaming agent (selective) It is more preferable to use at a ratio of 5 to 100 liters.
, (b), (e), (d), (f), (g)
.

It is also possible to prepare a mixture of (h) and (el), mix the two, react, and foam.

The reaction temperature is not particularly limited, but is preferably 10 to 50°C.
There is no particular limit to the number of rotations of the stirrer during mixing, but it is 1,000.
~7.000 revolutions/min is preferred. When molding a foam or structure, it is preferable to use a mold, although there is no limit to 9%. Place
The mold is heated to a temperature of 30°C to 60°C, which is preferable for obtaining a uniform foam.

Next, the above-mentioned materials are stirred and mixed and poured into the mold. Then, an upper mold equipped with a flame-retardant or noncombustible plate or sheet and heated to a temperature of 30°C to 60°C, which is preferable to obtain a uniform foam, is placed with the side of the plate or sheet facing the solution mixture. Place and tighten the mold.

By foaming, it is possible to obtain a structure in which the second foam and a flame-retardant or noncombustible plate or sheet are in close contact with each other. Here, the flame-retardant or noncombustible plate or sheet may be provided on either one or both sides of the foam.

It is preferable to have a sandwich structure on both sides in order to improve flame retardant properties. In this case, the flame-retardant or non-combustible plates or sheets provided on both sides of the foam may be the same or a combination of different types.

(Example) The present invention will be described in detail.

Example 1 200 parts by weight of polyethylene terephthalate chips (manufactured by Takayasu Co., Ltd., 5IK-ABF, v-re-PET), 100XIk parts of ethylene glycol, and 0.2 parts by weight of dibutyl dilaurate were placed in four flasks and reacted at 180°C for 3 hours. A polyester polyol was obtained.

25 parts by weight of this polyester polyol, Tris(2-
Hydroxyethyl) isocyanurate (manufactured by Nissan Chemical Industries, Ltd., trade name: THEIC) 11 parts by weight, flame retardant tris(2-chloroethyl)phosphny) 15.5 parts by weight, silicone foam stabilizer (manufactured by Dow Corning, trade name: Foam Stabilizer) Freon 11 (manufactured by DuPont Mitsui Fluorochemical Co., Ltd., trade name) was added to a solution of a mixture of 1.0 parts by weight of agent 190) and 1.5 parts by weight of triethanolamine while keeping it warm at 20''' cVc.
16 parts by weight were added and mixed to obtain a solution.

Separately, prepare solution B by mixing 89 parts by weight of fructose, 11 parts by weight of water, and 2 parts by weight of triethanolamine.

Mix parts by weight of solution ATO and 80 parts by weight of solution B, and add diphenylmethane diisocyanate (trade name: Millione, owned by Nippon Boliuremen) to this mixture.
600 parts by weight with a stirrer equipped with turbine blades.
The mixture was stirred and mixed at 0 rotations/min for 5 seconds, then poured into a wooden mold (220 x 220 x height 15 mm) with an open top and bottom kept warm at 40°C.The upper mold kept warmed at 40°C was placed on top of this and the mixture was tightened. did. After 10 minutes, the mold is removed and the foam (thickness 1
5 mm) was obtained. The density of this foam is o, o 3a
s/cIX13. Bending strength is 3.3 kg/cm”
The water absorption rate was 2%.

A wooden mold with an open top and bottom (inner volume 220m x 2
Color iron plate (thickness 0) on the bottom of the
．． 27 mm) and warm the mold to 40°C.

Next, 380 parts by weight of solution 1 and 150 parts by weight of diphenylmethane diisocyanate (manufactured by Nippon Polyurethane Co., Ltd., trade name Millionate MR-100) were added to 70 parts by weight of solution A, and the mixture was stirred for 5 seconds at o o o revolutions/min using a stirrer equipped with turbine blades. The mixture was stirred and mixed, and the mixture was poured into the above-mentioned mold. Aluminum kraft paper was attached to the upper surface of the mold, and an upper mold heated to 40° C. was placed on the upper mold, with the aluminum kraft paper facing the solution mixture, and the mold was clamped. Demold after 10 minutes to form a foam (thickness 15=)
Obtain a flame-retardant structure in which a steel plate (thickness: 0.27 tan) is adhered to the surface of the structure, and an aluminum sheet (7 tan paper) is adhered to the back surface of the structure. The density of the foam that is the core material of this structure is o, oasg
/C-1 is a foam with a bending strength of 3.3 kg/cm", a water absorption rate of 2%, and a uniform and fine cell structure.
It was comparable to conventional foams in terms of bending strength and water absorption. Table 1 shows the results of a nonflammability test conducted using this structure in accordance with Ministry of Construction Notification No. 1231. As is clear from Table 1, this structure was extremely excellent in terms of external appearance after combustion, afterflame 9 smoke generation coefficient, temperature coefficient, and temperature time area.

Example 2 25 parts by weight of a polyether polyol obtained by reacting alkylene oxide with a sugar having a cyclic structure (manufactured by Asahi Glass Co., Ltd., trade name: Kusetol 45180), Tris (
11 parts by weight of 2-hydroxyethyl) isocyanurate (manufactured by Nissan Chemical Industries, Ltd., trade name: THEIC), 15.57 parts of flame retardant tris(2-chloroethyl)7m7ate
1 part by weight of a silicone foam stabilizer (manufactured by Dow Corning, trade name Foam Stabilizer 190), and 1.5 parts by weight of triethanolamine were added to a solution of Freon 11 while keeping the temperature at 20°C. (Behind Mitsui DuPont Fluorochemical Company,
16 parts by weight (trade name) were added and mixed to obtain a solution C.

70 parts by weight of solution C, 80 parts by weight of solution B used in Example 1, and 150 parts by weight of diphenylmethane diisocyanate (trade name: Millionate MR, -100, manufactured by Nippon Boliuremen Co., Ltd.) were mixed, and the mixture was stirred at 600 rpm with a stirrer equipped with turbine blades. The mixture was stirred and mixed for 5 seconds, and in the same manner as in Example 1, a structure was obtained in which a colored iron plate was adhered to the surface of a foam (Jl! The density of this foam is 0.0351/ci, and the bending strength is 4.0.
kta/cm", a foam with a uniform and fine cell structure.

Compared to conventional foams, it was comparable in terms of compressive strength and water absorption. Using this structure, the Ministry of Construction Notification 1
Table 1 shows the results of the nonflammability test based on No. 231.

As is clear from Table 1, this structure was extremely excellent in terms of external appearance after combustion, afterflame 9 smoke generation coefficient, temperature coefficient, and temperature time area.

Comparative Example 1 36 parts by weight of the polyester polyol used in Example 1,
Flame retardant tris (2-chloroethyl) phosphate 15
．． 5 parts by weight, silicone foam stabilizer (manufactured by Dow Corning,
A solution containing 1.0 parts by weight of foam stabilizer (trade name 190) and 1.5 parts by weight of triethanolamine was added to a solution of 16 parts by weight of 7Leon 11 (manufactured by DuPont Mitsui Fluorochemical Co., Ltd., trade name) while keeping it warm at 20°C. and mixed to obtain a solution.

80 parts by weight of solution D, 70 parts by weight of solution B used in Example 1, and 150 parts by weight of diphenylmethane diisocyanate (manufactured by Nippon Polyurethane Co., Ltd., trade name Millionate MR-100) were mixed, and the mixture was mixed with a stirrer equipped with a turbine blade to give 6,000 parts by weight.
The mixture was stirred and mixed at a rotation speed of 5 seconds per minute, and then the same procedure as in Example 1 was carried out to obtain a structure in which a colored iron plate was adhered to the surface of a foam (thickness 15 mm) and aluminum kraft paper was adhered to the back surface.

The density of this foam is 0.0346/cm3. Bending strength is 1.8 kg/cm2. The water absorption rate was 3%, and the foam had a uniform and fine cell structure. The bending strength was inferior to that of the foam of Example 2. Table IK shows the results of a nonflammability test based on Ministry of Construction Notification No. 1231 using this structure.

Comparative Example 2 1.5 parts by weight of triethanolamine was added to 75 parts by weight of fructose and 11 parts by weight of water and mixed well to obtain solution E.

80 parts by weight of diphenylmethane diisocyanate (manufactured by Nippon Polyurethane Co., Ltd., trade name Millionate MR-100), 1.0 part by weight of a silicone foam stabilizer (manufactured by Dow Corning, trade name Foam Stabilizer 190), and tris(2-chloroethyl) phosphate. 20ii parts of the solution were added and mixed to obtain a solution F.

6. Add 2,100 parts by weight of the solution to 8,150 parts by weight of the solution, and stir using a stirrer equipped with turbine blades. Stir and mix at OOO rotations/min for 5 seconds, and then apply a color iron plate to the surface of the foam (thickness: 15 mm) in the same manner as in Example 1.

A structure with aluminum kraft paper adhered to the back was obtained.

In this case, the density of the foam 9 was 0.033 g/c♂9, the bending strength was 0.7 kg/C-, and the foam had a uniform and fine cell structure. Table IK also shows the results of a quasi-inflammability test based on Ministry of Construction Notification No. 1231 using this structure. As is clear from Table 1, the structure of this comparative example has improved appearance after combustion, smoke emission coefficient (1), and exhaust temperature after 5 minutes compared to structures using isocyanurate foam or phenol foam. However, the basic properties required for structures, such as a decrease in bending strength and an increase in water absorption, have deteriorated.

Comparative Example 3 Heteroform 28264 (polyol manufactured by Hooker Co., trade name) 21.1 parts by weight, Heteroform 29696
(polyol manufactured by Hooker Co., trade name) 23.5 parts by weight, DC-193 (foam stabilizer manufactured by Dow Corning Co., trade name)
1 part by weight, Polycat 41 (catalyst manufactured by Sun Abbott,
Product name) 1.42 parts by weight.

Freon 11 (manufactured by DuPont Mitsui Fluorochemical Company).

Product name) Innate 580 in a solution mixed with 25 parts by weight
(Isocyanate compound manufactured by Upjohn Company.

Add 101 parts by weight of product name) and stir and mix for 5 seconds at 00 revolutions/minute using a stirrer equipped with a turbine blade.Then, proceed as in Example 1 to prepare an isocyanurate foam (thickness: 15 mm).
A structure was obtained in which a colored iron plate was glued to the front surface and aluminum kraft paper was glued to the back surface. In this case, the density of one foam is 0.035
g/cm', and the bending strength was 14 kg/am''. Table 1 shows the results of a semi-flammability test based on Ministry of Construction Notification No. 1231 using this structure. As described above, although the structure of this comparative example was equivalent to the foam of the example in terms of bending strength and water absorption, the change in appearance after combustion was significant, with most of the foam being burned away.

It was also significantly inferior in terms of smoke generation coefficient and temperature/time area.

Comparative Example 4 Danphenon 110B curing agent (preservative) was added to a solution of 100 parts by weight of Danphenone 110A (phenol resin, trade name, manufactured by Hodogaya Chemical Co., Ltd.) and 15 parts by weight of Freon 113 (blowing agent, trade name, manufactured by DuPont Mitsui Fluorochemicals). Manufactured by Tsuchiya Chemical Co., Ltd., trade name) 40 parts by weight, Danphenone ll0C (
Manufactured by Hodogaya Chemical Co., Ltd.

Add a solution containing 15 parts by weight of isocyanate (trade name) and mix at 4000 rpm for 5 minutes using a stirrer equipped with turbine blades.
The mixture was stirred and mixed for seconds, and then the same procedure as in Example 1 was carried out to obtain a structure in which a colored iron plate was adhered to the surface of a phenol foam (thickness: 15 am) and aluminum kraft paper was adhered to the back surface. Since the phenol foam has significantly poor curing properties, after-curing was performed at 100° C. for 30 minutes. In this case, the density of the two foams is 0.04
09/car” and bending strength of 1.2 kg/c.Although the structure was similar to the example in terms of bending strength and water absorption, fly Adhesion between the foam and aluminum kraft paper and colored iron plates is poor due to the possibility of cracking and chipping.

Ministry of Construction Notification No. 1231 using foam properties and structures
Table 1 shows the results of the quasi-nonflammability test based on No.

As is clear from Table 1, the structure of the comparative example burns (effect of the invention) The foaming resin composition of the present invention has low viscosity, so it has excellent workability and expansion ratio, and is highly flame retardant. , high strength (
This is a foaming resin composition that produces a foam with low water absorption (flexural strength) and low water absorption.

Since the foaming resin composition has a low viscosity, it can be easily foamed even in a normal low-pressure foaming machine, and conventional urethane foaming equipment can be used as is.

In addition, the structure obtained from this foaming resin composition exhibits excellent properties in terms of appearance shape after combustion, afterflame 9 smoke emission coefficient, temperature time area, and exhaust temperature after 5 minutes, and has excellent strength (bending). Coupled with improved strength) and reduced water absorption, it is a structure with excellent flame retardant properties.

θ7゛

Claims (1)

[Claims] 1. Aqueous solution and/or slurry of carbohydrates, polyol,
A foaming resin composition comprising tris(2-hydroxyethyl)isocyanurate, a reaction catalyst, an isocyanate compound, and, if necessary, a foam stabilizer, a flame retardant, and/or a foaming agent. 2. The foaming resin composition according to claim 1, wherein the water content of the aqueous solution and/or slurry of carbohydrates is 5 to 25% by weight. 3. A foam obtained from the foaming resin composition according to claim 1. 4. A structure formed by providing a plate or sheet on at least one side of a foam obtained from the foamable resin composition according to claim 1.