JP5106236B2 - アクリル−塩化ビニル系共重合樹脂を積層した防水シート - Google Patents
アクリル−塩化ビニル系共重合樹脂を積層した防水シート Download PDFInfo
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- JP5106236B2 JP5106236B2 JP2008120210A JP2008120210A JP5106236B2 JP 5106236 B2 JP5106236 B2 JP 5106236B2 JP 2008120210 A JP2008120210 A JP 2008120210A JP 2008120210 A JP2008120210 A JP 2008120210A JP 5106236 B2 JP5106236 B2 JP 5106236B2
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- vinyl chloride
- acrylic
- copolymer resin
- chloride copolymer
- waterproof sheet
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- 229920006026 co-polymeric resin Polymers 0.000 title claims description 38
- 229920005989 resin Polymers 0.000 claims description 25
- 239000011347 resin Substances 0.000 claims description 25
- 239000004014 plasticizer Substances 0.000 claims description 19
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 claims description 16
- 239000000049 pigment Substances 0.000 claims description 13
- 239000004800 polyvinyl chloride Substances 0.000 claims description 13
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 13
- 239000006097 ultraviolet radiation absorber Substances 0.000 claims description 9
- 229920005992 thermoplastic resin Polymers 0.000 claims description 6
- 239000010410 layer Substances 0.000 description 52
- 238000000034 method Methods 0.000 description 17
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 10
- 239000000178 monomer Substances 0.000 description 9
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 description 8
- 239000012964 benzotriazole Substances 0.000 description 8
- 239000000945 filler Substances 0.000 description 7
- 238000012360 testing method Methods 0.000 description 7
- 239000006096 absorbing agent Substances 0.000 description 6
- 239000003963 antioxidant agent Substances 0.000 description 5
- 229910000019 calcium carbonate Inorganic materials 0.000 description 5
- 235000010216 calcium carbonate Nutrition 0.000 description 5
- 238000011109 contamination Methods 0.000 description 5
- 230000006866 deterioration Effects 0.000 description 5
- 238000011156 evaluation Methods 0.000 description 5
- 239000000835 fiber Substances 0.000 description 5
- -1 phthalate ester Chemical class 0.000 description 5
- 239000003381 stabilizer Substances 0.000 description 5
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 4
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 4
- 239000004925 Acrylic resin Substances 0.000 description 4
- 239000000654 additive Substances 0.000 description 4
- 239000003365 glass fiber Substances 0.000 description 4
- 238000003475 lamination Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 4
- 229920002725 thermoplastic elastomer Polymers 0.000 description 4
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 3
- 229920000178 Acrylic resin Polymers 0.000 description 3
- 239000006057 Non-nutritive feed additive Substances 0.000 description 3
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- 238000001125 extrusion Methods 0.000 description 3
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- 239000003063 flame retardant Substances 0.000 description 3
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- 150000003839 salts Chemical class 0.000 description 3
- OEPOKWHJYJXUGD-UHFFFAOYSA-N 2-(3-phenylmethoxyphenyl)-1,3-thiazole-4-carbaldehyde Chemical compound O=CC1=CSC(C=2C=C(OCC=3C=CC=CC=3)C=CC=2)=N1 OEPOKWHJYJXUGD-UHFFFAOYSA-N 0.000 description 2
- 239000005995 Aluminium silicate Substances 0.000 description 2
- 102100035474 DNA polymerase kappa Human genes 0.000 description 2
- 101710108091 DNA polymerase kappa Proteins 0.000 description 2
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 2
- 229920000459 Nitrile rubber Polymers 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical group CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
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- 235000012211 aluminium silicate Nutrition 0.000 description 2
- 239000003242 anti bacterial agent Substances 0.000 description 2
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- HBGGXOJOCNVPFY-UHFFFAOYSA-N diisononyl phthalate Chemical compound CC(C)CCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCC(C)C HBGGXOJOCNVPFY-UHFFFAOYSA-N 0.000 description 2
- 239000011256 inorganic filler Substances 0.000 description 2
- 229910003475 inorganic filler Inorganic materials 0.000 description 2
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 239000004611 light stabiliser Substances 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 2
- 239000001095 magnesium carbonate Substances 0.000 description 2
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 2
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 2
- 239000000347 magnesium hydroxide Substances 0.000 description 2
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 2
- HCWCAKKEBCNQJP-UHFFFAOYSA-N magnesium orthosilicate Chemical compound [Mg+2].[Mg+2].[O-][Si]([O-])([O-])[O-] HCWCAKKEBCNQJP-UHFFFAOYSA-N 0.000 description 2
- 239000000391 magnesium silicate Substances 0.000 description 2
- 229910052919 magnesium silicate Inorganic materials 0.000 description 2
- 235000019792 magnesium silicate Nutrition 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
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- ZQBAKBUEJOMQEX-UHFFFAOYSA-N phenyl salicylate Chemical compound OC1=CC=CC=C1C(=O)OC1=CC=CC=C1 ZQBAKBUEJOMQEX-UHFFFAOYSA-N 0.000 description 2
- 238000010526 radical polymerization reaction Methods 0.000 description 2
- YGSDEFSMJLZEOE-UHFFFAOYSA-N salicylic acid Chemical compound OC(=O)C1=CC=CC=C1O YGSDEFSMJLZEOE-UHFFFAOYSA-N 0.000 description 2
- 238000010558 suspension polymerization method Methods 0.000 description 2
- 239000000454 talc Substances 0.000 description 2
- 229910052623 talc Inorganic materials 0.000 description 2
- ARCGXLSVLAOJQL-UHFFFAOYSA-N trimellitic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C(C(O)=O)=C1 ARCGXLSVLAOJQL-UHFFFAOYSA-N 0.000 description 2
- 239000002759 woven fabric Substances 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- CSUUDNFYSFENAE-UHFFFAOYSA-N (2-methoxyphenyl)-phenylmethanone Chemical compound COC1=CC=CC=C1C(=O)C1=CC=CC=C1 CSUUDNFYSFENAE-UHFFFAOYSA-N 0.000 description 1
- ZXDDPOHVAMWLBH-UHFFFAOYSA-N 2,4-Dihydroxybenzophenone Chemical compound OC1=CC(O)=CC=C1C(=O)C1=CC=CC=C1 ZXDDPOHVAMWLBH-UHFFFAOYSA-N 0.000 description 1
- WXHVQMGINBSVAY-UHFFFAOYSA-N 2-(benzotriazol-2-yl)-4-tert-butylphenol Chemical compound CC(C)(C)C1=CC=C(O)C(N2N=C3C=CC=CC3=N2)=C1 WXHVQMGINBSVAY-UHFFFAOYSA-N 0.000 description 1
- FWLHAQYOFMQTHQ-UHFFFAOYSA-N 2-N-[8-[[8-(4-aminoanilino)-10-phenylphenazin-10-ium-2-yl]amino]-10-phenylphenazin-10-ium-2-yl]-8-N,10-diphenylphenazin-10-ium-2,8-diamine hydroxy-oxido-dioxochromium Chemical class O[Cr]([O-])(=O)=O.O[Cr]([O-])(=O)=O.O[Cr]([O-])(=O)=O.Nc1ccc(Nc2ccc3nc4ccc(Nc5ccc6nc7ccc(Nc8ccc9nc%10ccc(Nc%11ccccc%11)cc%10[n+](-c%10ccccc%10)c9c8)cc7[n+](-c7ccccc7)c6c5)cc4[n+](-c4ccccc4)c3c2)cc1 FWLHAQYOFMQTHQ-UHFFFAOYSA-N 0.000 description 1
- DBOSBRHMHBENLP-UHFFFAOYSA-N 4-tert-Butylphenyl Salicylate Chemical compound C1=CC(C(C)(C)C)=CC=C1OC(=O)C1=CC=CC=C1O DBOSBRHMHBENLP-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
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- 229920001651 Cyanoacrylate Polymers 0.000 description 1
- 241001649081 Dina Species 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 229920001328 Polyvinylidene chloride Polymers 0.000 description 1
- NRCMAYZCPIVABH-UHFFFAOYSA-N Quinacridone Chemical class N1C2=CC=CC=C2C(=O)C2=C1C=C1C(=O)C3=CC=CC=C3NC1=C2 NRCMAYZCPIVABH-UHFFFAOYSA-N 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- WVYYHSKIGBEZCQ-UHFFFAOYSA-N [O-2].[O-2].[Cr+3].[Fe+2] Chemical compound [O-2].[O-2].[Cr+3].[Fe+2] WVYYHSKIGBEZCQ-UHFFFAOYSA-N 0.000 description 1
- WVULIGOFCMVZKN-UHFFFAOYSA-N [O-2].[Y+3].[O-2].[Mn+2] Chemical compound [O-2].[Y+3].[O-2].[Mn+2] WVULIGOFCMVZKN-UHFFFAOYSA-N 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- HFBMWMNUJJDEQZ-UHFFFAOYSA-N acryloyl chloride Chemical compound ClC(=O)C=C HFBMWMNUJJDEQZ-UHFFFAOYSA-N 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000001361 adipic acid Substances 0.000 description 1
- 235000011037 adipic acid Nutrition 0.000 description 1
- PYKYMHQGRFAEBM-UHFFFAOYSA-N anthraquinone Natural products CCC(=O)c1c(O)c2C(=O)C3C(C=CC=C3O)C(=O)c2cc1CC(=O)OC PYKYMHQGRFAEBM-UHFFFAOYSA-N 0.000 description 1
- 150000004056 anthraquinones Chemical class 0.000 description 1
- 230000003373 anti-fouling effect Effects 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- 239000004305 biphenyl Substances 0.000 description 1
- YKGYQYOQRGPFTO-UHFFFAOYSA-N bis(8-methylnonyl) hexanedioate Chemical compound CC(C)CCCCCCCOC(=O)CCCCC(=O)OCCCCCCCC(C)C YKGYQYOQRGPFTO-UHFFFAOYSA-N 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 238000003490 calendering Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229910000420 cerium oxide Inorganic materials 0.000 description 1
- UOUJSJZBMCDAEU-UHFFFAOYSA-N chromium(3+);oxygen(2-) Chemical class [O-2].[O-2].[O-2].[Cr+3].[Cr+3] UOUJSJZBMCDAEU-UHFFFAOYSA-N 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
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- MCPKSFINULVDNX-UHFFFAOYSA-N drometrizole Chemical compound CC1=CC=C(O)C(N2N=C3C=CC=CC3=N2)=C1 MCPKSFINULVDNX-UHFFFAOYSA-N 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000010556 emulsion polymerization method Methods 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
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- VBMVTYDPPZVILR-UHFFFAOYSA-N iron(2+);oxygen(2-) Chemical class [O-2].[Fe+2] VBMVTYDPPZVILR-UHFFFAOYSA-N 0.000 description 1
- PXZQEOJJUGGUIB-UHFFFAOYSA-N isoindolin-1-one Chemical compound C1=CC=C2C(=O)NCC2=C1 PXZQEOJJUGGUIB-UHFFFAOYSA-N 0.000 description 1
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- MOUPNEIJQCETIW-UHFFFAOYSA-N lead chromate Chemical class [Pb+2].[O-][Cr]([O-])(=O)=O MOUPNEIJQCETIW-UHFFFAOYSA-N 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
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- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 description 1
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical class [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 description 1
- FJKROLUGYXJWQN-UHFFFAOYSA-N papa-hydroxy-benzoic acid Natural products OC(=O)C1=CC=C(O)C=C1 FJKROLUGYXJWQN-UHFFFAOYSA-N 0.000 description 1
- 125000002080 perylenyl group Chemical group C1(=CC=C2C=CC=C3C4=CC=CC5=CC=CC(C1=C23)=C45)* 0.000 description 1
- CSHWQDPOILHKBI-UHFFFAOYSA-N peryrene Natural products C1=CC(C2=CC=CC=3C2=C2C=CC=3)=C3C2=CC=CC3=C1 CSHWQDPOILHKBI-UHFFFAOYSA-N 0.000 description 1
- 229960000969 phenyl salicylate Drugs 0.000 description 1
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- IEQIEDJGQAUEQZ-UHFFFAOYSA-N phthalocyanine Chemical compound N1C(N=C2C3=CC=CC=C3C(N=C3C4=CC=CC=C4C(=N4)N3)=N2)=C(C=CC=C2)C2=C1N=C1C2=CC=CC=C2C4=N1 IEQIEDJGQAUEQZ-UHFFFAOYSA-N 0.000 description 1
- 239000000088 plastic resin Substances 0.000 description 1
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- 229920001155 polypropylene Polymers 0.000 description 1
- 239000005033 polyvinylidene chloride Substances 0.000 description 1
- FYNROBRQIVCIQF-UHFFFAOYSA-N pyrrolo[3,2-b]pyrrole-5,6-dione Chemical class C1=CN=C2C(=O)C(=O)N=C21 FYNROBRQIVCIQF-UHFFFAOYSA-N 0.000 description 1
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- 229920006395 saturated elastomer Polymers 0.000 description 1
- 235000012424 soybean oil Nutrition 0.000 description 1
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Images
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- Laminated Bodies (AREA)
Description
なかでも、カレンダ−法により順次積層一体化することが好ましく、長尺の防水シートを効率よく得られ、経済性に優れる。
ポリ塩化ビニル樹脂に可塑剤としてDOPを50部、CaCO3を50部、およびBa/Zn系安定剤を添加した配合物と繊維強化層(2a)としてガラス繊維織物をカレンダー法にて成形し、軟質塩化ビニル樹脂によるベース層の中間にガラス繊維織物を積層した、厚さ1.3mmの軟質塩化ビニル系ベース層[B1]を得た。
次に、塩化ビニルモノマ−80重量部と、アクリル酸系モノマ−からなる重合体としてポリ(アクリル酸−n−ブチル)20重量部をグラフト共重合することでアクリル−塩化ビニル系共重合樹脂[A]得た。得られた[A]の可溶分樹脂のK値は67であった(JIS K7367−2に従って測定)。
アクリル−塩化ビニル系共重合樹脂[A]100重量部に顔料を10重量部とベンゾトリアゾ−ル系の紫外線吸収剤2.5重量部を配合して、最表面の層が0.1mmとなるアクリル−塩化ビニル系共重合樹脂層(1)を得て、上記の防水シートのベース層[B1]とカレンダ−法により積層一体化された総厚1.4mmの防水シートを得た。
得られた防水シートについては、促進耐候性試験、汚染性試験及び施工性試験を以下に示す方法に基づいて実施した。これら得られた結果を表1に示す。
ダイプラ・ウィンテス社製のメタルハライドランプ方式の試験機(メタルウェザ−試験機)を使用し、以下の条件で試験を行い、照射時間672時間後の表面亀裂の有無を評価した。
(条件)試料面放射強度:60mW/cm2(波長域330〜390nm)
ブラックパネル温度:63℃、相対湿度:50%
(評価基準)
◎:亀裂なし
○:微細な亀裂あり
△:部分的に亀裂あり
×:全面的に亀裂あり
カ−ボン/灯油の3%溶液を塗膜上に滴下し、20℃飽和蒸気圧下で1日、40℃で2日間乾燥し、超音波洗浄器を用いて水中での洗浄性およびフキトリ性を観察した。
(評価基準)
○:跡がほとんどなく拭き取れる
△:跡が薄く残る、拭き取りも可
×:跡が濃く残り拭き取れない
出隅部位として角度が90度で10mmア−ルの丸面取りをした施工台にニトリルゴム系の接着剤を施工台と防水シートの裏面に塗布し、オ−プンタイム10分経過後に接着剤を塗布した面同士を合わせ、ゴム製ハンドロ−ラ−で十分に圧着して張りつける。1時間経過後に出隅部位に浮きが発生していないかを目視で確認する。
(評価基準)
◎:浮きが全く見られない
○:浮きが僅かにしか見られない
△:少しの浮きがあるが10mm以下である
×:浮きが10mm以上である
表1に記したアクリル−塩化ビニル系共重合樹脂の厚みを0.30mm、ベンゾトリアゾ−ル系の紫外線吸収剤の添加量を0.5重量部に変更した以外は、実施例1と同じようにして、各項目の測定及び評価を行った。その結果を併せて表1に記す。
表1に記したアクリル−塩化ビニル系共重合樹脂の厚みを0.05mm、ベンゾトリアゾ−ル系の紫外線吸収剤の添加量を0.2重量部に変更した以外は、実施例1と同じようにして、各項目の測定及び評価を行った。その結果を併せて表1に記す。
表1に記したアクリル−塩化ビニル系共重合樹脂の厚みを0.40mm、ベンゾトリアゾ−ル系の紫外線吸収剤の添加量を1.5重量部に変更した以外は、実施例1と同じようにして、各項目の測定及び評価を行った。その結果を併せて表1に記す。
表1に示したアクリル−塩化ビニル系共重合樹脂の厚みを0.20mm、ベンゾトリアゾ−ル系の紫外線吸収剤の添加量を4重量部に変更し、軟質ポリ塩化ビニル樹脂製のベース層[B1]を熱可塑性エラストマー樹脂(サンアロマー社製 キャタロイQ100F)にCaCO3を50部、顔料を10重量部、酸化防止剤、添加した組成物を成形してなる熱可塑性エラストマー樹脂製のベース層[B2]に変更した以外は、実施例1と同じようにして、各項目の測定及び評価を行った。その結果を併せて表1に記す。
表1に記したアクリル−塩化ビニル系共重合樹脂の層をポリ塩化ビニル樹脂に可塑剤としてDOPを35部、CaCO3を50部、顔料を10重量部、ベンゾトリアゾール系紫外線吸収剤2.5重量部、およびBa/Zn系安定剤を添加した組成物を成形してなる、厚さ0.2mmの軟質ポリ塩化ビニル樹脂層[C1]にした以外は、実施例1と同じようにして、各項目の測定及び評価を行った。その結果を併せて表1に記す。
表1に記したアクリル−塩化ビニル系共重合樹脂の層を熱可塑性エラストマー樹脂(サンアロマー社製 キャタロイQ100F)にCaCO3を50部、顔料を10重量部、ベンゾトリアゾール系紫外線吸収剤0.5重量部、酸化防止剤を添加した組成物を成形してなる、厚さ0.40mmの熱可塑性エラストマー−樹脂層[C2]に変更した以外は実施例5と同じようにして、各項目の測定及び評価を行った。その結果を併せて表1に記す。
2:ベース層
2a:繊維強化層
Claims (3)
- アクリル−塩化ビニル系共重合樹脂と顔料と紫外線吸収剤とを含有して成るアクリル−塩化ビニル系共重合樹脂層を最表面に有し、該アクリル−塩化ビニル系共重合樹脂層に熱可塑性樹脂製ベース層を積層したことを特徴とする防水シート。
- 前記アクリル−塩化ビニル系共重合樹脂層の厚みが0.05mm〜0.30mmであることを特徴とする請求項1に記載の防水シート。
- 前記ベース層がポリ塩化ビニル系樹脂と可塑剤とを含有して成る軟質塩化ビニル系ベース層であることを特徴とする請求項1または請求項2記載の防水シート。
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