JPS6383155A - Chlorinated vinyl chloride resin composition - Google Patents
Chlorinated vinyl chloride resin compositionInfo
- Publication number
- JPS6383155A JPS6383155A JP22864986A JP22864986A JPS6383155A JP S6383155 A JPS6383155 A JP S6383155A JP 22864986 A JP22864986 A JP 22864986A JP 22864986 A JP22864986 A JP 22864986A JP S6383155 A JPS6383155 A JP S6383155A
- Authority
- JP
- Japan
- Prior art keywords
- vinyl chloride
- chloride resin
- chlorinated vinyl
- maleate
- bis
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical class ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 title claims abstract description 25
- 239000011342 resin composition Substances 0.000 title claims description 5
- 239000011347 resin Substances 0.000 claims abstract description 22
- 229920005989 resin Polymers 0.000 claims abstract description 22
- 239000010457 zeolite Substances 0.000 claims abstract description 7
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims abstract description 6
- 229910021536 Zeolite Inorganic materials 0.000 claims abstract description 6
- 239000011734 sodium Substances 0.000 claims abstract description 6
- 229910052708 sodium Inorganic materials 0.000 claims abstract description 6
- -1 malate compound Chemical class 0.000 claims description 18
- 229940049920 malate Drugs 0.000 claims description 4
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 abstract description 13
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 abstract description 12
- HGQSXVKHVMGQRG-UHFFFAOYSA-N dioctyltin Chemical compound CCCCCCCC[Sn]CCCCCCCC HGQSXVKHVMGQRG-UHFFFAOYSA-N 0.000 abstract description 6
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 abstract description 5
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 abstract description 2
- 239000000460 chlorine Substances 0.000 abstract description 2
- 229910052801 chlorine Inorganic materials 0.000 abstract description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 2
- ZMQWRASVUXJXGM-SREVYHEPSA-N (z)-4-cyclohexyloxy-4-oxobut-2-enoic acid Chemical compound OC(=O)\C=C/C(=O)OC1CCCCC1 ZMQWRASVUXJXGM-SREVYHEPSA-N 0.000 abstract 1
- 229910004742 Na2 O Inorganic materials 0.000 abstract 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 1
- 229910052681 coesite Inorganic materials 0.000 abstract 1
- 229910052593 corundum Inorganic materials 0.000 abstract 1
- 229910052906 cristobalite Inorganic materials 0.000 abstract 1
- WCRDXYSYPCEIAK-UHFFFAOYSA-N dibutylstannane Chemical compound CCCC[SnH2]CCCC WCRDXYSYPCEIAK-UHFFFAOYSA-N 0.000 abstract 1
- 239000000377 silicon dioxide Substances 0.000 abstract 1
- 235000012239 silicon dioxide Nutrition 0.000 abstract 1
- 229910052682 stishovite Inorganic materials 0.000 abstract 1
- 229910052905 tridymite Inorganic materials 0.000 abstract 1
- 229910001845 yogo sapphire Inorganic materials 0.000 abstract 1
- 150000003839 salts Chemical class 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- AYOHIQLKSOJJQH-UHFFFAOYSA-N dibutyltin Chemical compound CCCC[Sn]CCCC AYOHIQLKSOJJQH-UHFFFAOYSA-N 0.000 description 7
- 150000002148 esters Chemical class 0.000 description 5
- 239000003381 stabilizer Substances 0.000 description 5
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 4
- 239000011976 maleic acid Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- QKUGKZFASYQCGO-SREVYHEPSA-N (z)-4-oxo-4-phenylmethoxybut-2-enoic acid Chemical compound OC(=O)\C=C/C(=O)OCC1=CC=CC=C1 QKUGKZFASYQCGO-SREVYHEPSA-N 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 230000000087 stabilizing effect Effects 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 150000004701 malic acid derivatives Chemical class 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- VTWCVXKFWPSSNK-PLNGDYQASA-N (z)-4-(4-methoxybutoxy)-4-oxobut-2-enoic acid Chemical class COCCCCOC(=O)\C=C/C(O)=O VTWCVXKFWPSSNK-PLNGDYQASA-N 0.000 description 1
- AJZXFLWFRPJTBN-PLVGSSCXSA-J C(\C=C/C(=O)[O-])(=O)[O-].C(CCCCCCC)[Sn+2]CCCCCCCC.C(CCCCCCC)[Sn+2]CCCCCCCC.C(\C=C/C(=O)[O-])(=O)[O-] Chemical compound C(\C=C/C(=O)[O-])(=O)[O-].C(CCCCCCC)[Sn+2]CCCCCCCC.C(CCCCCCC)[Sn+2]CCCCCCCC.C(\C=C/C(=O)[O-])(=O)[O-] AJZXFLWFRPJTBN-PLVGSSCXSA-J 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- SWFZSKSYOAFLCF-KVCHMMOOSA-K butyltin(3+) (Z)-4-oxo-4-phenylmethoxybut-2-enoate Chemical compound CCCC[Sn+3].[O-]C(=O)\C=C/C(=O)OCc1ccccc1.[O-]C(=O)\C=C/C(=O)OCc1ccccc1.[O-]C(=O)\C=C/C(=O)OCc1ccccc1 SWFZSKSYOAFLCF-KVCHMMOOSA-K 0.000 description 1
- 238000005660 chlorination reaction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- TUALPPJDVFLVNQ-KUAKSMGGSA-L dibutyltin(2+);(z)-4-oxo-4-phenylmethoxybut-2-enoate Chemical compound C=1C=CC=CC=1COC(=O)\C=C/C(=O)O[Sn](CCCC)(CCCC)OC(=O)\C=C/C(=O)OCC1=CC=CC=C1 TUALPPJDVFLVNQ-KUAKSMGGSA-L 0.000 description 1
- PWEVMPIIOJUPRI-UHFFFAOYSA-N dimethyltin Chemical compound C[Sn]C PWEVMPIIOJUPRI-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 230000002087 whitening effect Effects 0.000 description 1
Abstract
Description
【発明の詳細な説明】 本発明は新規な塩素化塩化ビニル樹脂組成物に関する。[Detailed description of the invention] The present invention relates to a novel chlorinated vinyl chloride resin composition.
塩素化塩化ビニル樹脂は通常の塩化ビニル樹脂に比して
耐熱性が優れているため、塩化ビニル樹脂では不適な用
途に使用されている。Chlorinated vinyl chloride resin has better heat resistance than ordinary vinyl chloride resin, so it is used in applications for which vinyl chloride resin is not suitable.
例えば温水用パイプ、給湯用バイブ、地中線用ケーブル
防護管等である。Examples include hot water pipes, hot water supply vibrators, underground cable protection pipes, etc.
現在使用されている具体的態様は下記のとおりである。The specific embodiments currently used are as follows.
(1)温水パイプ、給湯バイブとして塩素化塩化ビニル
樹脂にオクチル錫メルカプト系化合物が安定剤として添
加され使用されているが、なお充分ではなく又アルキル
錫マレート系化合物は吸水性があり、白化現象の原因と
なり不適であるとして使用されていなかった。(1) Octyltin mercapto compounds are added as stabilizers to chlorinated vinyl chloride resins for use in hot water pipes and hot water supply vibrators, but this is still not sufficient and alkyltin malate compounds have water absorption properties, causing whitening phenomenon. It was not used as it was considered inappropriate due to the
(2)地中線用ケーブル防護管として、耐熱性と共に耐
衝撃性が要求されるため、塩素化塩化ビニル樹脂の欠点
である耐衝撃性、加工性を改良する目的に通常の塩化ビ
ニル樹脂を適当量配し、それに上記したオクチル錫メル
カプト系化合物あるいはメチル錫メルカプト系化合物が
使用されているが、なお充分ではなかった。(2) Since impact resistance is required as well as heat resistance as a cable protection pipe for underground cables, ordinary vinyl chloride resin was used to improve the impact resistance and processability, which are the shortcomings of chlorinated vinyl chloride resin. An appropriate amount of the above-mentioned octyltin mercapto compound or methyltin mercapto compound has been used, but it has not been sufficient.
そこで本発明者等は種々研究の結果、従来より優れた塩
素化塩化ビニル樹脂組成物を見出し本発明を完成した。As a result of various studies, the present inventors discovered a chlorinated vinyl chloride resin composition superior to the conventional ones and completed the present invention.
即ち本発明組成物は、塩素化塩化ビニル樹脂100重量
部に
a、アルキル錫マレート系化合物0.5〜3重量部
す、一般式
%式%)
示されるナトリウムA型ゼオライト化合物0、 5〜1
0重量部を含有させた塩素化塩化ビニル樹脂組成物。That is, the composition of the present invention contains 100 parts by weight of a chlorinated vinyl chloride resin, 0.5 to 3 parts by weight of an alkyltin malate compound, and a sodium A-type zeolite compound represented by the general formula %, 0, 5 to 1.
A chlorinated vinyl chloride resin composition containing 0 parts by weight.
である。It is.
本発明組成物において塩素化塩化ビニル樹脂は塩化ビニ
ル樹脂を後から塩素化処理したものであって塩素含有二
が63重量%〜68重皿%のものである。In the composition of the present invention, the chlorinated vinyl chloride resin is a vinyl chloride resin that has been subjected to a chlorination treatment and has a chlorine content of 63% to 68% by weight.
アルキル錫マレート系化合物としては次のようなものが
挙げられる。Examples of alkyltin malate compounds include the following.
ジメチル錫ビス
(マレイン酸モノベンジルエステル)塩ジブチル錫マレ
イン酸塩
ジブチル錫マレイン酸塩ポリマー
ジブチル錫ビス(マレイン酸
モノアルキル(C2〜Cl8)エステル)塩ジブチル錫
ビス(マレイン酸
レ
モノ壷クロヘキシルエステル)塩
ジブチル錫ビス(マレイン酸
モノベンジルエステル)塩
ジブチル錫ビス(マレイン酸
モノメトキシブチルエステル)塩
ジブチル錫ビス(マレイン酸
モノプロピレングリコールエステル)塩ジブチル錫ビス
(マレイン酸モノアルキル(01〜C+ )ベンジルエ
ステル)塩ジブチル錫ビス(マレイン酸
モノアルケニルエステル)塩
モノブチル錫マレイン酸ベンジルエステル塩ビス(ジブ
チル錫マレイン酸
ベンジルエステ ル塩)マレイン酸塩
ビス(ジブチル錫マレイン酸
アルキルエステル塩)マレイン酸塩
ビス(ジブチル錫マレイン酸
アルケニルエステル塩)マレイン酸塩
ジーn−オクチル錫マレイン酸塩
ジーn−オクチル錫マレイン酸塩ポリマージー〇−オク
チル錫ビス(マレイン酸
モノアルキル(02〜Cl8)エステル)塩ジーn−オ
クチル錫ビス(マレイン酸
モノアルケニルエステル)塩
ジーn−オクチル錫ビス(マレイン酸
し
モノ壷クロヘキシルエステル)塩
ジーn−オクチル錫ビス(マレイン酸
モノベ ンジルエステル)塩
ジーn−オクチル錫ビス(マレイン酸
モノメトキシブチルエステル)塩
アルキル錫マレート系化合物の配合量は塩素化塩化ビニ
ル樹脂100重量部に対して0.5〜3重量部である。Dimethyltin bis(maleic acid monobenzyl ester) salt dibutyltin maleate dibutyltin maleate polymer dibutyltin bis(maleic acid monoalkyl (C2-Cl8) ester) salt dibutyltin bis(maleic acid monobenzyl ester) Dibutyltin bis(maleic acid monobenzyl ester) salt Dibutyltin bis(maleic acid monomethoxybutyl ester) salt dibutyltin bis(maleic acid monopropylene glycol ester) salt dibutyltin bis(monoalkyl maleate (01-C+) benzyl ester) salt dibutyltin bis(monoalkenyl maleate salt) salt monobutyltin benzyl maleate salt bis(dibutyltin benzyl maleate salt) maleate bis(dibutyltin maleate alkyl ester salt) maleate bis( dibutyltin maleate alkenyl ester salt) di-n-octyltin maleate di-n-octyltin maleate polymer di-octyltin bis(monoalkyl maleate (02-Cl8) ester) salt di-n- Octyltin bis(maleic acid monoalkenyl ester) salt di-n-octyltin bis(maleic acid monoalkenyl ester) salt di-n-octyltin bis(maleic acid monobenzyl ester) salt di-n-octyltin bis(maleic acid monoalkenyl ester) The amount of the alkyltin malate compound (monomethoxybutyl ester) salt is 0.5 to 3 parts by weight per 100 parts by weight of the chlorinated vinyl chloride resin.
0.5以下では熱安定効果が充分でなく実用に供せない
。If it is less than 0.5, the thermal stabilizing effect is insufficient and it cannot be put to practical use.
3以上では熱安定化効果が頭打ちとなりそれ以上使用す
れば、経済的に不利であるばかりでなく、軟化温度の低
下やプレートアウトモル比や結晶構造によって種々のゼ
オライトが知られているが、本発明に使用して有効なも
のは、
一般式Na O・A10 ・ (1,5〜2.5)Si
02・nH2O(n−θ〜4.5)で示されるナトリウ
ムA型ゼオライトである。該ゼオライトの配合量は塩素
化塩化ビニル樹脂100重量部に対して0.5〜4重量
部である。If the temperature exceeds 3, the thermal stabilizing effect reaches a ceiling, and if it is used beyond that level, it is not only economically disadvantageous, but various zeolites are known to have lower softening temperatures, plate-out molar ratios, and crystal structures. Those that are effective for use in the invention have the general formula Na O.A10 (1,5-2.5)Si
It is a sodium A-type zeolite represented by 02·nH2O (n-θ~4.5). The amount of the zeolite blended is 0.5 to 4 parts by weight per 100 parts by weight of the chlorinated vinyl chloride resin.
0.5以下ではアルキル錫マレート系化合物との相剰効
果が発現できない。If it is less than 0.5, no synergistic effect with the alkyltin malate compound can be expressed.
O
μ以上では熱安定化効果が頭打ちとなり、それ以上使用
すれば経済的に不利であるばかりでなく強度の低下をひ
き起す。If the temperature exceeds 0 μ, the thermal stabilizing effect reaches a ceiling, and if it is used beyond this point, it is not only economically disadvantageous but also causes a decrease in strength.
本発明組成物は従来のものに比して耐熱性が向上する。The composition of the present invention has improved heat resistance compared to conventional compositions.
オクチル錫メルカプトを配合したものより、加工性耐候
性が良好となる。Processability and weather resistance are better than those containing octyltin mercapto.
鉛系安定剤を配合したものより強度が向上する。アルキ
ル錫マレート系化合物を単独で配合したものより、ナト
リウムA型ゼオライト型化合物との相剰効果により、吸
水によるとしない。等の特徴がある。Strength is improved compared to products containing lead-based stabilizers. It does not depend on water absorption due to the mutual effect with the sodium A type zeolite type compound than when the alkyl tin malate type compound is blended alone. It has the following characteristics.
なお本願組成物に必要に応じて通常の塩化ビニル樹脂、
衝撃性強化剤、顔料、安定剤、等々従来から塩素化塩化
ビニル樹脂の加工時に配合されている添加剤を適宜加え
ることは何ら差しつかえない。In addition, ordinary vinyl chloride resin,
There is no problem in adding, as appropriate, additives such as impact strength agents, pigments, stabilizers, etc., which are conventionally blended in the processing of chlorinated vinyl chloride resins.
以下実施例により具体的に説明する。This will be explained in detail below using Examples.
実施例1〜5.比較例1〜4
塩素化塩化ビニル樹脂100重量部に第1表に示す配合
剤を加えて配合し180℃で8インチロールて5分間混
練して厚さ0.5mmのシートを作成し、190℃に保
ったギアオーブンで黒化するまでの時間(熱安定性)を
調べた。Examples 1-5. Comparative Examples 1 to 4 The compounding agents shown in Table 1 were added to 100 parts by weight of chlorinated vinyl chloride resin and kneaded at 180°C for 5 minutes using an 8-inch roll to create a sheet with a thickness of 0.5 mm. The time until blackening (thermal stability) was investigated in a gear oven kept at ℃.
又170℃−50kg/ciの条件下で厚さ1mm、た
て10cm、よこlQcmのプレスシートを作成し、こ
れを70℃の温水に浸し、2週間後、4週間後に引き上
げ浸漬後の重量を秤り、浸清前の重量に対する増加率を
求め吸水性を調べた。Also, under the conditions of 170℃-50kg/ci, press sheets with a thickness of 1mm, length of 10cm and width of 1Qcm were prepared, immersed in hot water of 70℃, and pulled up after 2 and 4 weeks to calculate the weight after immersion. The water absorption was determined by weighing and determining the increase rate relative to the weight before immersion.
又上記シートと一般にバイブ用安定剤として使用されて
いる鉛系安定剤を配合したシートを重ねて170℃−5
0kg/cJの条件下でプレスシートを作成し、接触面
の硫化汚染の有無を調べた。In addition, the above sheet and a sheet containing a lead-based stabilizer, which is generally used as a stabilizer for vibrators, were layered and heated at 170℃-5.
A press sheet was prepared under the condition of 0 kg/cJ, and the presence or absence of sulfur contamination on the contact surface was examined.
実施例6〜7.比較例5〜9
塩素化塩化ビニル樹脂1001二部に第2表に示す配合
剤を加えて配合した後押出成型で電線管を作成し、該電
線管の物性等を調べた。Examples 6-7. Comparative Examples 5 to 9 Two parts of chlorinated vinyl chloride resin 1001 were mixed with the compounding agents shown in Table 2, and then extrusion molded to create electrical conduits, and the physical properties of the electrical conduits were examined.
Claims (1)
O_2・nH_2O(n=0〜4.5)で示されるナト
リウムA型ゼオライト化合物 0.5〜10重量部を含有させた塩素化塩化ビニル樹脂
組成物。[Claims] 100 parts by weight of chlorinated vinyl chloride resin contains a, 0.5 to 3 parts by weight of an alkyltin malate compound, b, and general formula Na_2O.Al_2O_3.(1.5 to 2.5)Si.
A chlorinated vinyl chloride resin composition containing 0.5 to 10 parts by weight of a sodium A-type zeolite compound represented by O_2·nH_2O (n=0 to 4.5).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP22864986A JPS6383155A (en) | 1986-09-26 | 1986-09-26 | Chlorinated vinyl chloride resin composition |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP22864986A JPS6383155A (en) | 1986-09-26 | 1986-09-26 | Chlorinated vinyl chloride resin composition |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6383155A true JPS6383155A (en) | 1988-04-13 |
Family
ID=16879642
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP22864986A Pending JPS6383155A (en) | 1986-09-26 | 1986-09-26 | Chlorinated vinyl chloride resin composition |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6383155A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5907889A (en) * | 1996-02-20 | 1999-06-01 | Sanyo Electric Co., Ltd. | Vacuum cleaner |
EP1000966A1 (en) * | 1998-11-11 | 2000-05-17 | Kaneka Corporation | Chlorinated vinyl chloride resin composition |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54145751A (en) * | 1978-05-09 | 1979-11-14 | Sankyo Yuki Gosei Kk | Stabilizer composition for halogen-containing polymer |
JPS5592752A (en) * | 1979-01-08 | 1980-07-14 | Nippon Chem Ind Co Ltd:The | Halogen-containing resin composition |
JPS5740537A (en) * | 1980-08-26 | 1982-03-06 | Tokuyama Soda Co Ltd | Chlorine-containing resin composition |
-
1986
- 1986-09-26 JP JP22864986A patent/JPS6383155A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54145751A (en) * | 1978-05-09 | 1979-11-14 | Sankyo Yuki Gosei Kk | Stabilizer composition for halogen-containing polymer |
JPS5592752A (en) * | 1979-01-08 | 1980-07-14 | Nippon Chem Ind Co Ltd:The | Halogen-containing resin composition |
JPS5740537A (en) * | 1980-08-26 | 1982-03-06 | Tokuyama Soda Co Ltd | Chlorine-containing resin composition |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5907889A (en) * | 1996-02-20 | 1999-06-01 | Sanyo Electric Co., Ltd. | Vacuum cleaner |
EP1000966A1 (en) * | 1998-11-11 | 2000-05-17 | Kaneka Corporation | Chlorinated vinyl chloride resin composition |
US6469079B1 (en) | 1998-11-11 | 2002-10-22 | Kaneka Corporation | Chlorinated vinyl chloride resin composition |
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