JPS58174430A - Vinyl halide polymer composition with improved weather resistance and workability, increase of vinyl halide polymer impact resistance and composition therefor - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to halogenated vinyl polymer compositions and, more particularly, to covalent compositions with impact modifiers in halogenated vinyl polymer compositions, preferably rigid halogenated vinyl polymer compositions. (synergi'1stic combination
n) ultrafine particles □ゝ diameter (matry
fine particle 5ize) (less than average IP) hydration 7 Rui t 17) for use.

Generally, the most commercially important halogenated vinyl polymer material is polyvinyl chloride (pvo) and is therefore described herein with respect to PvC. However, it should be understood that the present invention also applies to other halogenated vinyl polymers, such as those discussed below.

Primarily to reduce price and when used at low concentrations, scrubbing
on) and plate out.
Adding fillers to the halogenated vinyl polymer material to reduce t). Fillers generally increase modulus, decrease tensile strength and elongation, and usually decrease impact strength when their concentration is high enough to affect physical properties. There are several fillers that preserve and, in some cases, increase impact strength in rigid PVO compositions, such as particulate precipitated, hydrated silica, and ultrafine-coated precipitated calcium carbonate (J, Radosta).

Proceedings of the 37th %BPR Regular Technical Conference (8PE Ann
-ual Technical 0onferen
ce Preprints) % Page 193 (
[see 72)], but these fillers are
It is not commonly used in external rigid PVO because it has a detrimental effect on weather resistance.

Irrigation alumina is an acceptable additive in plastic parts due to its low cost and flame-retardant and smoke-suppressing properties.
ac-1eremtics)
(J, Z., Kemting, Plm.
stics Oompoanding, page 23, 12
PvO described in 0 documents (see July 2010)
Most of the uses of water alumina in Konno-Gland are:
Generally, it is limited to alibilized compositions in which improved flame retardancy is obtained when used at concentrations of about lo parts per ioo parts of polymer or higher [9W, Morgan
, T., O., Mmthis and J., D., H.
irchen, 30th, s, PG Footprint Technical Conference Proceedings, (Shika'i), page 417j (7 pages): 1'L
W, 8praque, "Systematic study on Fire-brske Z B as a flame retardant in PVO - Part II, Alumina trihydrate as a phase agent", l
μB, January 1973, U, 8. Borax
Re5search 0orpors-tion (An
aheim, 0alforinia): O,ill
, Hoke, 8PHJournal, Juri, 3rd
See page 4 (17 months ago)]; however, 1.8
oboley and E. Woy-chesin,
8PIi! Proceedings of the regular technical conference, page 70 (73
) describes the use of hydrated alumina as a smoke suppressant in rigid PVO compositions at a concentration of 30%, and also shows that this filler does not reduce impact strength. has been done.

More recently, for example, U.S. Pat. ri 17, 7.23.

Same No. J,? t j, No. 706, to the same No. / $ J, O
j No. 0 and the same No. 7. Specification A0 states that flame retardancy and smoke suppression properties can be improved by a complementary composition consisting of alumina trihydrate and zinc oxide, zinc borate, or bismuth subcarbonate. is listed.

The present inventors have recently discovered extremely fine particle diameters (less than lμ).
Hydrated alumina with a hydrated alumina can be used as an additive for PVO without reducing the impact strength of the PVO and, unexpectedly, exhibits a highly synergistic effect with conventional impact modifiers. It has been found that impact strength can be significantly increased and workability and weather resistance can be improved.

Hydrated alumina is often referred to as alumina hydrate or alumina trihydrate. Its empirical formula is often A
t,os・JH! The reason for this is that it decomposes into aluminum oxide and water at elevated temperatures, acting as a flame retardant. However, the formula is technically incorrect. This compound actually has the formula:
At(oH)s is a finely divided crystalline aluminum hydroxide.

Irrigated aluminas of very fine particle size (average less than lμ) are useful as fillers in vinyl halide polymers, and when used in conjunction with impact modifiers they act differentially to improve pvo
Increases the impact strength of the material.

According to the present invention, an impact-forming agent and an average particle size of less than 1μ are present in a halogenated vinyl polymeric material in an amount to form a rounded phase composition that increases the impact resistance of the polymeric material. characterized by being blended with water-use alumina having a diameter,
A method of increasing the impact resistance of halogenated vinyl polymer materials is provided.

The present invention further provides improved weather resistance and processability, characterized in that it comprises a halogenated vinyl polymer or copolymer, a filler, and an irrigated alumina having an average particle size of less than lμ. There is provided a halogenated vinyl polymer composition having an impact resistance in an amount sufficient to form a phased composition with the water-containing alumina that substantially increases the impact resistance of the polymer. Preferably, it further contains a modifier.

According to the present invention, the filled dihalogenated vinyl polymer is further characterized in that water-containing alumina having an average particle size of less than lμ is blended into the halogenated vinyl polymer material containing a reinforcing filler. A method of improving weatherability of a material is provided.

Further in accordance with the present invention, an impact modifier and a water-containing alumina having an average particle size of less than lμ.

A composition suitable for improving the impact resistance of a non-logenated vinyl polymer material is characterized in that it contains both of these compounds in relative proportions sufficient to form a phased composition. provided.

By incorporating hydric alumina with ultra-fine particle size (on average less than lμ) into impact-resistant hard PVO compositions,
Surprisingly and unexpectedly, pvo compositions are obtained whose impact strength is significantly increased. This effect is hard p
It is recognized for many impact modifiers commonly used in VO.

Hard PvC containing such ultrafine particle size hydrated alumina
When performing torque rheometer and extrusion tests on the composition, as the concentration of water alcohol increases,
Motor amperage and torque are reduced. At the same time, an increase in dynamic thermal stability is observed.

Another benefit resulting from the use of ultrafine particle size hydric alumina in external PvC compositions is improved weatherability, which reduces the amount of titanium dioxide or other fillers customarily used for a particular application. It is possible to reduce the Compositions containing various concentrations of ultra-fine particle size water-use alumina in accordance with the present invention exhibit superior performance to compositions containing only titanium dioxide when subjected to outdoor exposure tests and accelerated weathering tests. Furthermore, compositions containing titanium dioxide and water-containing alumina at lower concentrations exhibited weather resistance equivalent to compositions containing only titanium dioxide at higher concentrations.

As mentioned above, extremely fine particle size hydrated alumina (very
fine particle @ 5ize hy
drated mlumina), l-
means an hydric alumina having an average particle size of less than 0.0 μm, preferably about 0.6 μm or less. In general, if the average particle size of the water-use alumina is larger than the above limit value, the polymer material Ixo
d) would have a detrimental effect on impact strength.

It is preferable that the particle size distribution of the water-use alumina is such that there are substantially no particles having a particle size larger than lμ.

The candy called 1 impact strength ° is A8TMD-, 2! Normally, this test is carried out according to the method of Izots, i.e.
A specimen 4 inches in size is prepared, a notch is made in the specimen as specified in the test method, and the pendulum is placed on a vertically supported specimen in the cantilever impact test. The impact is applied by means of a mold hammer. A range scale (range 5) records the energy absorbed across the width of the sample, in pounds of force.
cale), and from this, the impact strength expressed as fee P/Po/P per inch of notch is calculated.

The term ``halogen vinyl polymer'' (``polymeric vinyl 10-genide'') refers to homopolymers and copolymers derived from vinyl halogenide and to the constituents of such homopolymers or copolymers. 0 means a polymer blend containing as
Examples of homopolymers, copolymers, and polymer blends containing vinyl chloride include the following: (1) polychlorinated beer, polychlorinated beer,
Polyvinyl bromide, polyvinyl fluoride and polyvinylidene fluoride: (-2) Vinyl chloride and the following copolymerizable ethylenically unsaturated monomers, namely vinylidene chloride, vinyl acetate, vinyl butyrate, benzoic acid Vinyl, diethyl fumarate, diethyl maleate, other 7 malic acids and alkyl maleates, vinyl zolopionate, acrylic acid,
Methyl acrylate, tylhexyl acrylate, butyl acrylate, ethyl acrylate and other alkyl acrylates, methacrylic acid, methyl methacrylate,
Ethyl methacrylate, butyl methacrylate, hydroxyethyl methacrylate and other alkyl methacrylates, methyl α-chloroacrylate, styrene, vinyl ethyl ether, vinyl chloroethyl ether and vinyl phenyl ether, vinyl ether, vinyl methyl ketone and Copolymers of vinyl ketones such as vinyl phenyl ketone, /-fluoro-t-p chloroethylene, acrylonitrile, chloracrylonitrile, arylidene diacetate, chlor9-lylidene diacetate, olefins such as ethylene and propylene; and (3) polyvinyl chloride. and polyethylene, polyvinyl chloride and polymethyl methacrylate, polyvinyl chloride and polybutyl chloride and acryl nitrile-butadiene-styrene terpoly! - and ternary mixtures containing polyvinyl chloride, polyethylene, methacrylate.

Typical vinyl halide copolymers that can be used in the present invention include vinyl chloride-vinyl acetate, vinyl chloride-vinylidene chloride, vinyl chloride-diethyl fumarate, vinyl chloride-trictetraethylene, and vinyl chloride-acrylic acid 2.
-Ethylhexyl copolymers. The polymer blends that can be used in the practice of the present invention consist of a physical mixture of at least two different types of polymers.
For example, the vinyl halide copolymer or copolymers useful for use in the present invention may contain, for example, from about -2j to 0% by weight of a vinyl halide copolymer or copolymer containing, for example, from about -2j to 1% by mole. contains vinyl halide units.

In a preferred embodiment of the invention, a vinyl chloride homopolymer or copolymer is used as the polymer. This polymer is preferred because of its low cost and easier commercial availability than other vinyl halides.

The ultra-fine particle size hydrated alumina described above can be used as a filler in both hard and soft vinyl halide polymer compositions, but it can also be used as a filler in hard vinyl halide polymer compositions (containing 10 g or less of plasticizer). (obtained in) The surprisingly good impact strength is of particular commercial importance.

The parameters and effects of using the ultra-fine particle size water conserving alumina according to the present invention will be explained in sequence below.

Differential effect on impact strength: Calcium carbonate fillers having an average particle size of i,oμ or more usually have a detrimental effect on impact strength when used in rigid PVO compositions. Average particle size is /, 0
In compositions containing both an impact modifier and a calcium chloride filler, the impact strength will not be reduced and, in some cases, will be improved slightly. There is a very slight improvement in impact resistance compared to using the modifier alone.

The ultrafine particle size hydrated alumina used in accordance with the present invention provides only a slight increase in impact strength in hard PVO compositions that do not contain impact modifiers; In PvO compositions containing modifiers,
Irrigated alumina, with its extremely fine particle size (less than lμ), behaves quite differently from calcium carbonate and works differently with impact modifiers to significantly and unexpectedly increase impact strength. increase to The table results are shown in Table 1 below.

The degree of surprising and unexpected increase in impact strength is independent of the type of impact modifier used in the composition.

The impact modifier is usually a bim-like material, which is partially or completely incompatible with the halogenated vinyl polymer and is present as a separate, discrete phase. This is in contrast to plasticizers, which are completely compatible with halogenated vinyl polymers. Additionally, impact modifiers increase impact strength without significantly lowering heat distortion temperatures and without reducing other desirable mechanical and physical properties. Representative impact modifiers suitable for use in accordance with the present invention include, for example, chlorinated polyethylene-based, modified acrylic or all-acrylic, ABa-based and MBB-based modifiers. Any conventional impact modifiers can also be used in the composition. It is thought that the ultrafine particle size hydrated alumina continuously exhibits its phase difference effect. For example, in a hard PVA composition containing 1 phr (parts per ioo part of resin) of a conventional impact modifier, ultrafine particle size water-containing alumina is added to A phr.
When added, the Izod impact strength increases by a factor of 2 to 10 or more compared to that without the addition of hydrated alumina. The data in this article shows that an Izot impact strength of 5-20 ft-tb/in can be obtained. ' The use of water-containing alumina with small particle size (less than lμ on average) does not have a detrimental effect on the impact strength of the PVO composition, while
(2) The use of hydrated alumina with large particle size reduces the impact strength of the PVO composition, but the use of a separation agent consisting of a conventional impact modifier and ultra-fine particle size (less than lμ) hydrated alumina can reduce the impact strength of the PVO composition. The substantial increase in impact strength obtained is unexpected and surprising.

Table 3 shows that the differential effect on impact strength is unique to irrigation systems with average particle sizes less than 1-. Those with an average particle size of lμ are ineffective in increasing impact strength, while larger particle sizes have a detrimental effect on impact strength.

Concentration of C0 Irrigation Alumina The present inventor has found that maximum impact strength can be obtained when the ratio of ultrafine particle size Irrigation Alumina and impact modifier is 2 to 4 c:/; It has been found that the impact strength increases significantly in some cases and that even at ratios as low as 1 knee some useful effects can be obtained. Although some benefits may be obtained at lower ratios, commercially significant results typically require the above ratios to be at least 2.

For example, for a composition containing a J phr modified acrylic impact modifier, maximum impact strength is obtained when the ratio of hydrated alumina to impact modifier is Conil. If the concentration of hydrated alumina is increased until the ratio of hydrated alumina to impact modifier is r:tK, an impact equal to that of using j phr of impact modifier and no hydrated alumina is obtained. Strength is obtained (see Figure 1).

Impact modifiers are typically used in the range /-/jphr%, preferably co-/opbr. The specific amount used will vary depending on the end use of the polymeric material. For example, injection molding PVO typically contains about 1 to 1 phr of impact modifier to improve the build-ing properties.
Rigid PVO for use in
contains the above-mentioned improving agent. By using ultrafine particle size hydrated alumina in accordance with the present invention, the concentration of impact modifier can be reduced somewhat. Since high concentrations of impact modifiers reduce tensile strength and heat distortion temperature, reducing the concentration of impact modifiers can produce vinyl halide polymer materials with better physical properties. Obtainable.

Optimal concentrations of impact modifiers and water-containing alumina will vary depending on the type of composition and the desired properties of the shell composition.
For example, if a Fizot impact strength of 2.0 is a sufficient value for an external weathering formulation, the data shown in Figure 1 indicates that; A phr-containing composition can contain as much hydrated alumina as -24' phr and still maintain the same impact strength and
As shown in Table 7 and FIG. 2, it is shown that it has surprisingly improved weather resistance and processability. Improving impact resistance If desired, the concentration of 11-hydrated alumina can be reduced slightly to obtain the desired impact strength while also providing the desired weather resistance.

As mentioned above, the ratio of hydrated alumina to impact modifier can be as high as t:l, but it is preferred that the concentration of hydrated alumina is no greater than jOphr.

If this concentration is greater than j Ophr, processing properties are degraded and it is difficult to uniformly distribute the hydrated alumina throughout the polymeric material.

D. Processability By adding ultra-fine particle size water conserving alumina to the hard PVO composition, torque, material temperature and pressure are reduced;
Additionally, the processing properties are improved, as evidenced by the increased dynamic processing stability.

For example, a standard siding composition containing ultra-fine particle size alumina from /Ophr is /! The same composition without irrigated alumina exhibits an equilibrium torque of 21 meters-durham and a material temperature of 201 degrees Celsius, whereas the same composition without irrigated alumina exhibits an equilibrium torque of /410 meters-grams and a material temperature of 201 degrees Celsius. In a similar torque rheometer test, compositions containing hydric alumina/Ophr had a thermal stability of 13%.
increased and showed a stabilization time of 2λ, −2 min, whereas
The stabilization time for the control composition was 1 and stopped at 6 minutes. A ph
A composition similar to the above containing a hydrated aluminum of r showed an increase in the thermal stability of the compound X compared to the control composition (see Table 1).

In addition to torque rheometer testing, the same compositions described above were tested under controlled conditions using a Kraas-M® conical twin screw tester equipped with a 2.3 inch, 410 mil strip die. Processed using an extruder. By using ultra-fine particle size water-containing alumina), the torque was reduced and the motor amperage was reduced) and the extrusion pressure was also reduced. This data is shown in FIG.

A common problem with weatherable hard PVO processing machines is screw and barrel wear caused by the abrasive action of titanium dioxide (Moh hardness approximately 6.5). Very hard alumina (
Alumina is relatively soft, similar to calcium carbonate, which has a Mob hardness of about 3. When combined with ultra-fine particle size water conservancy alumina,
The concentration of titanium dioxide can be reduced and, as a result, barrel and screw wear can be reduced.

B. Weather Resistance Yet another surprising and unexpected benefit of using ultrafine particle size hydrated alumina in rigid PVO compositions is increased weather resistance and thus reduced titanium dioxide concentrations. It is possible to do so.

For example, standard siding compositions containing various concentrations of ultrafine particle size hydrated alumina are prepared and KM-Co! It was extruded using a test extruder. Accelerated photostability tests were performed on the extruded samples in a fluorescent solar lamp/black light (F8BL) light source and the results showed that the addition of water-containing alumina improved the photostability (Table 3). reference).

Another series of compositions was similarly extruded and tested in the QUV apparatus. This test also showed that the addition of ultrafine particle size hydrated alumina improved photostability. In this series of compositions, 1 ophr Tie, and t phr
of hydrated alumina;
It appeared to exhibit at least the same photostability as a composition containing i01 and no hydrated alumina (see Table 4).

A long-term outdoor weathering test was conducted on the hydrated alumina-containing composition for one month. 4I extruded strips of white Comparan P in Alicina! At an angle of inclination of 1, towards the south,
We also have extruded strips of green Connoise P in Florida! It was exposed to sunlight with a tilt angle of 0 and towards the south. From the results shown in Table 7 and Table 1, it can be seen that weather resistance is improved.

Weathering tests conducted at Alicina on hard PVO compositions containing ultra-fine particle size hydrated alumina and calcium carbonate showed that the composition containing calcium carbonate was superior to either the control composition or the composition containing hydrated alumina. It was shown that there is a strong tendency for yellowing and chalking to occur. Calcium carbonate is used on external concrete land, especially when the chalking phenomenon occurs. ,,Acts 1--1
This is because this filler has the above-mentioned properties (see Figure 3).

Variable height impact testing (v+arimblehei) on green extruded strips prepared for Florida weathering tests.
ght! An extruded sample containing hydrated alumina from a zero-tube test (WHIT) showed comparable results to the control sample (see Table 1).

In addition to the ultrafine particle size alumina and impact modifiers, the vinyl halide polymer compositions of the present invention contain conventional compound ingredients such as stabilizers and fillers, as well as pigments, lubricants, dyes, It may also contain optional additives such as ultraviolet absorbers, plasticizers, etc.

Typically, the ultrafine particle size water-containing alumina may be incorporated into the dihalogenated vinyl polymer composition by any conventional method; for example, by premixing the selected hydrated aluminum with an impact modifier. It can then be mixed with the polymeric resin, or the components can be mixed individually into the resin. It is, of course, necessary that the hydric alumina be substantially evenly dispersed in the mixture. In extrusion compositions, the aqueous phase: □ Since the addition of alumina tends to reduce backpressure, care should be taken to apply sufficient shear throughout the dispersion.

Conventional processing temperatures and processing conditions may be used as long as the processing temperature is below 230°C. If the processing temperature is higher than the above-mentioned temperature, the irrigated alumina may decompose slightly due to the loss of its water.

Example 1 After mixing, a test piece for an Izod impact test was prepared using a sheet of a 3J-GO mill, which was kneaded for 3 minutes using a 3-coat J7 machine. The kneaded sheet was cut into two 4zx4z sheets, and the stretched sheets were stacked alternately. This sample was compression molded under 37J at 3000P8I for 10 minutes to obtain No. 4 black. It was measured according to Izotsu Impact Direction A8TMD-Coj6. Physical characteristics are A8TM[)-/714! Measured according to the method.

Torque rheometer - dynamic processing stability was determined using a Blinder-Plasticorder (0, W, Brabender, Ha
cken -5ack, N, J, ) i.e. No,
Measurements were made using an electrically heated torque rheometer equipped with an A bowl according to the conditions shown in the table below.

Accelerated and outdoor weathering tests and variable altitude impact tests (Vl
(IT) are all mixed in a high-power mixer, and then a Co/I #0 mill strip die is installed.9KM-2! Measurements were made on extruded strips obtained from Konnozoland extruded under identical conditions on a test extruder. The extrusion conditions are as follows: The temperature of zones #l, φ and #3 is 320"fl, 2xj7 and 3xj7, respectively.
When the temperature is below JrO), the screw speed is 2.
It was 0 rpm.

Variable height impact test was measured according to the method described in A8TMD-J j 7.

Outdoor and accelerated weathering tests were conducted as follows: Outdoor Weathering Tests - All samples were exposed to sunlight in a tilted position facing south.

Fluorescent Sun Lamp/Black Light) (F8BL) Test - Samples KU, V, were irradiated for 100 hours and then 61 hours at dawn.
The operation of leaving it for a while was repeated.

QUV - Accelerated Weathering Test - Samples were exposed to U,
irradiated with V, and then condensed at 50°C for a period of time (
Q-Panel Co
, (Ohio.

Iterate the tree using equipment compatible with %A8TM a-j3 manufactured by 01Eveland).

The following composition was prepared.

Dimensions ゛Composition for 1 person.

PVO(K-iGj)
100.0TiO2 (rutile)
40 stearic acid/calcium acid
01 paraffin wax, /
l! ”p/, co-processing aid t.

Butyltin mercazotide chemotactic agent
/) Composition “B” PVO (K=4j) 1
0o, 0TiO1 (rutile)
lyuo modified acrylic impact modifier
g.

Processing aid
0,3 calcium stearate
Yuo no zo rough in wax, it! "F
/, 0 butyltin mercaptide stabilizer t! Composition 4"C
″ PVO (K=tr) 10
0,0Tie, (rutile)
50 Modified acrylic impact modifier
YoO processing aid
/, 0 Calcium stearate 20 Paraffin wax, 16! Bottom t0 Butyltin mercaptide stabilizer t
! Composition "A" was used to perform the Izot impact test; the results were 1. 0 Composition °B" shown in Tables 2 and 3 was tested by torque rheometer stability test, extrusion test,
Used for variable height impact tests and weathering tests; results shown in Tables 4I-9, 1 and 7.
C° was used in a weathering test comparing irrigated alumina and calcium carbonate; the results are shown in Figure 3.
Non-chalking grade titanium dioxide was used in place of the titanium dioxide in ade). ! ! ! tK journal gana description,
The hydrated alumina was prepared by a precipitation method and had 0. It has an average particle diameter of Jμ.

The table below shows the effect of hydric alumina on various properties of rigid PVO materials.

$7 Table Ca&! Item 1B') Change conditions / J
J'r10g/J
/J / Co-modified acrylic
! ! .

Hydrated alumina −jQ ≦, Q month Yellow f-index' JL OJ oj.

J Ha t# Muda 4
/aO*/ L1ta
/14 Lid
j, 7/J /even-/J,
4 Tough (1) Test at Alisina Table 1 Effect of water-use alumina on weather resistance (1) (Silver change conditions / J j
#T! O嘗lλ /J
/Co lco modified acrylic! r
j J J water conservancy alumina
-6-4 j D, J O, J O
, San 〇, s& 0,4 0
．． Ko 0. j Q, Kota
0.7 0.2
0i 0. JL co
tρ 0.7 Q, Ta 17
．． j (1) Trial on Frog 12) Composition 1B", non-choking Tl01, t
tpkj oxidation 0A (31A8TM D-JJke? Example) Investigating the effect of hydrated alumina on compositions prepared with and without impact modifiers and plasticizers (circled) For this purpose, a series of PVC compositions were prepared using the proportions of ingredients shown in Section D. Accelerated weathering tests (F8BL and QUV) as described in Example/ were carried out on the above compositions; are shown in Table 7.

Each of the compositions in this example was below 310! after mixing! Kneaded for 1 minute and compression molded at 310 for 5 minutes to produce a 21 mil black. The yellowing index was measured using Mmcbetb's tzoo colorimetric needle.

From the results shown in Table 7, it can be seen that compositions containing ultra-fine particle size water-use alumina (average 0.!μ) have better weather resistance than compositions that do not contain this. This improvement in weather resistance is also achieved by impact modifiers.

is observed for compositions prepared with plasticizers, nine compositions prepared without them, and nine compositions prepared with both impact modifiers and plasticizers. On the other hand, the results shown in Table 2 show that the impact modifier and plasticizer used in the composition of this example improved the weather resistance of water-use alumina having an average particle size of O-Sμ. It can be seen that the use further increases the weather resistance of the composition.

1 Example 3 No. to! A series of PVO using components in the proportions shown in 11y
Compositions were prepared to determine the effect of hydrated alumina on weatherability. The accelerated weathering tests (F8BL and QUV) described in Example 1 were conducted, and the results were reported as No. 1/W/! Ic is shown.

After mixing, each of the compositions in this example had J! At rO”p!
Kneaded for a minute. Composition/-1Fi component each separately hFc
Composition 6 is prepared by premixing the impact modifier, stabilizer, processing aid, 'rtom, and hydrated alumina and then adding the other ingredients. Prepared.

From the results shown in Table ti, 0. When added to a hydrated alumina composition having an average particle size of j~θ, ter, compared to a composition that does not contain water-containing alumina,
It can be seen that the weather resistance is improved.

Furthermore, from the results shown in Table 1/Table 1, hydrated alumina having an average particle size of 0.jμ
It can be seen that increasing the weather resistance of the composition and these benefits are obtained whether the components of the composition are added individually or as a premix.

woman 5゛1,

[Brief explanation of the drawing]

FIG. 1 is a graph showing the relationship between the concentration of water-containing alumina and the Izod impact strength. Figure 2 shows the relationship between the concentration of water-containing alumina, extrusion pressure, and motor amperage. FIG. 3 is a graph showing the influence of hydrated alumina and calcium carbonate on weather resistance. Mr. Hiki, Commissioner of the Patent Office 1. Case Description 1982 Patent Application No. 202194 Address Woodbridge, New Chassis, United States of America. One Utsu Bridge Center (address: tikn)
(No irQ) Name Ram 0 and T Chemicals Inc.

Claims (1)

Claims: t. A halogenated vinyl polymer with improved weather resistance and processability, characterized in that it consists of a halogenated vinyl polymer material, a filler and a water-containing alumina having an average particle size of less than lμ. Coalescing composition. An impact modifier is included in an amount sufficient to form a cohesive composition with the water-containing alumina that implicitly increases the impact resistance of the composition. A composition according to claim 1. 1. The impact modifier is present in an amount of /pbr-1j pbr, and the irrigated alumina is present in an amount such that the weight ratio of the irrigated alumina and the impact modifier is l:co~l/. A composition according to claim 1. Hiroshi: Applying to the halogenated vinyl polymer material a superfluous composition that increases the impact resistance of the halogenated vinyl polymer material by adding a hydrated alumina, an impact modifier, and a hydrated alumina having an average particle size of less than /μ. - A method of increasing the impact resistance of a halogenated vinyl polymer material, the method comprising: The method according to claim 1, wherein the temperature when mixing the components is maintained at 2 JO°C or less. The method according to claim 1, wherein the hydrated alumina has an average particle size of O, a to o, t microns. 2. The method according to claim 1, wherein hydrated alumina is added in an amount such that the weight ratio of hydrated alumina to impact modifier is from 1:2 to t:1. L. The method according to claim 1, wherein hydrated alumina is added in an amount such that the weight ratio of irrigation alumina to ikt impact storm reforming agent is /:I-1:/. T) Improving the impact resistance of a halogenated vinyl polymer material containing an impact modifier and hydrated alumina having an average particle size of less than lμ in sufficient proportions to form a cohesive composition. Composition for improvement. 10.Irrigation alumina and impact modifier
:l. / hydrated alumina and impact modifier l:l~Hiroshi:l
A composition according to claim io, wherein the composition is present in a weight ratio of: 12 Hydrated alumina is 0.4! The composition according to claim 2, having an average particle size of ~o, tμ.