DE3120854A1 - "ultraviolettlicht absorbierende mittel, zubereitungen, welche diese mittel enthalten, und ihre verwendung - Google Patents
"ultraviolettlicht absorbierende mittel, zubereitungen, welche diese mittel enthalten, und ihre verwendungInfo
- Publication number
- DE3120854A1 DE3120854A1 DE19813120854 DE3120854A DE3120854A1 DE 3120854 A1 DE3120854 A1 DE 3120854A1 DE 19813120854 DE19813120854 DE 19813120854 DE 3120854 A DE3120854 A DE 3120854A DE 3120854 A1 DE3120854 A1 DE 3120854A1
- Authority
- DE
- Germany
- Prior art keywords
- och
- value
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- weight
- sich
- 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.)
- Granted
Links
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- 239000006096 absorbing agent Substances 0.000 title claims description 12
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- 238000000576 coating method Methods 0.000 claims description 30
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- 239000000203 mixture Substances 0.000 claims description 23
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- DKGAVHZHDRPRBM-UHFFFAOYSA-N Tert-Butanol Chemical compound CC(C)(C)O DKGAVHZHDRPRBM-UHFFFAOYSA-N 0.000 description 3
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 3
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- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 3
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- 239000004925 Acrylic resin Substances 0.000 description 2
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- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 150000004756 silanes Chemical class 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- UQMGAWUIVYDWBP-UHFFFAOYSA-N silyl acetate Chemical compound CC(=O)O[SiH3] UQMGAWUIVYDWBP-UHFFFAOYSA-N 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000001632 sodium acetate Substances 0.000 description 1
- 235000017281 sodium acetate Nutrition 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- 239000012265 solid product Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 229920005613 synthetic organic polymer Polymers 0.000 description 1
- 229920001897 terpolymer Polymers 0.000 description 1
- MRYQZMHVZZSQRT-UHFFFAOYSA-M tetramethylazanium;acetate Chemical compound CC([O-])=O.C[N+](C)(C)C MRYQZMHVZZSQRT-UHFFFAOYSA-M 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- KSBAEPSJVUENNK-UHFFFAOYSA-L tin(ii) 2-ethylhexanoate Chemical compound [Sn+2].CCCCC(CC)C([O-])=O.CCCCC(CC)C([O-])=O KSBAEPSJVUENNK-UHFFFAOYSA-L 0.000 description 1
- QQQSFSZALRVCSZ-UHFFFAOYSA-N triethoxysilane Chemical compound CCO[SiH](OCC)OCC QQQSFSZALRVCSZ-UHFFFAOYSA-N 0.000 description 1
- 239000006097 ultraviolet radiation absorber Substances 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/54—Silicon-containing compounds
- C08K5/544—Silicon-containing compounds containing nitrogen
- C08K5/5475—Silicon-containing compounds containing nitrogen containing at least one C≡N bond
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
- C07C45/61—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups
- C07C45/67—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton
- C07C45/68—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton by increase in the number of carbon atoms
- C07C45/70—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton by increase in the number of carbon atoms by reaction with functional groups containing oxygen only in singly bound form
- C07C45/71—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton by increase in the number of carbon atoms by reaction with functional groups containing oxygen only in singly bound form being hydroxy groups
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F7/00—Compounds containing elements of Groups 4 or 14 of the Periodic Table
- C07F7/02—Silicon compounds
- C07F7/08—Compounds having one or more C—Si linkages
- C07F7/18—Compounds having one or more C—Si linkages as well as one or more C—O—Si linkages
- C07F7/1804—Compounds having Si-O-C linkages
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/54—Silicon-containing compounds
- C08K5/541—Silicon-containing compounds containing oxygen
- C08K5/5415—Silicon-containing compounds containing oxygen containing at least one Si—O bond
- C08K5/5419—Silicon-containing compounds containing oxygen containing at least one Si—O bond containing at least one Si—C bond
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
- C09D183/04—Polysiloxanes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31507—Of polycarbonate
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Polymers & Plastics (AREA)
- Materials Engineering (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Paints Or Removers (AREA)
- Silicon Polymers (AREA)
- Coating Of Shaped Articles Made Of Macromolecular Substances (AREA)
- Laminated Bodies (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Description
-CH2SiCH3(OCH3)2,
in Methanol)
NMR δ, 12,47 (S.1H), 7,67 (m.6H), 6,60 (in.2H), 6,05 (m.1H),
Analyse: ■ ■
.Gefunden : C 75-,4 %, H 5,7 %.
Gefunden : C 62,8 %, H 7,0 %.
Claims (7)
- Patentansprüchein welcher ' iiX die Bedeutung =C=O oder =C=C—C—OW,■■■"■■'"■ ' - i ■ ■Y die Bedeutung H oder OH,Z die Bedeutung H, OH, OQ oder OW besitzt, wobei zumindest ein Rest Z eine HO-Gruppe ist, wenn Y ein H-Atom darstellt, . '" Q die1.Bedeutung -CH2 (CH2).nSi(R2Jx(OR1) , undW die Bedeutung -CH_ * hat, wobei der Index χ den Wert 0, 1 oder 2, der Index y den Wert 1, 2 oder 3, die Summe ( χ +y) den Wert 3, der Index' η den Wert 0, 1 oder 2, undder Index m einen Wert von 1 bis 18 aufweist, R1 Alkyl oder Alkanoyl mit 1 bis 6 Kohlenstoffatomen, undIU Alkyl mit 1 bis 6 Kohlenstoffatomen ist,enthält.
- 2. Verbindung nach Anspruch 1, dadurch gekenn zeichnet, daß sie aus Verbindungen der nachfolgenden FormelnOH HO■HOOH HOund ·ausgewählt ist, in welchen Q die Bedeutung. -CH2Si(OCH3)3,-CH2SiCH3(OCH3)2f -CH2Si(CH3J2(OCH3), -CH2(CH2J2Si(OCH3)3,-CH(OCH3)-CH2(CH2)2Si(CH3)2(OCH3), -CH2(CH2)2Si(OCOCH3)3, -CH2(CH2)2SiCH3(OCOCH3)2, -CII2 (CH2) 2Si (CH3) 2 (OCOCH3)-CH2CH2SiCH3(OCH3)2 oder -CH2CH2Si(CH3) 2 (OCH3)besitzt.
- 3. Verbindung nach Anspruch 2, dadurch gekenn ze i c h η e t, daß sie 4-[γ-(Triäthoxysilyl)propoxy]-2-hydroxybenzophenon ist.
- 4. Gegenstand, dadurch gekenn zeich-' net, daß er(A) ein Substrat,(B) eine Grundierschicht auf dem Substrat, und(C) eine harte Schutzschicht über der Grundierschicht und dem Substrat enthält, wobei die Schutzschicht aus einer wässerigen Zubereitung besteht, die,"vor dem Härten,(a) eine Dispersion einer kolloidalen Kieselerde ineiner Lösung des partiellen Kondensats eines Silanols der allgemeinen Formel RSi(OH)3, worin R aus der Gruppe bestehend aus Alkyl mit 1 bis 3 Kohlenstoffatomen und Aryl ausgewählt ist, wobei zumindest 70 Gewichtsprozent davon CH3Si(OH)3 ist, in einer Mischung eines aliphatischen Alkohols und Wasser, wobei die Dispersion von 10 bis 50 Gewichtsprozent Feststoffe enthält, die Feststoffe im wesentlichen aus 10 bis 70 Gewichtsprozent der kolloidalen Kieselerde und 30 bis 90 Gewichtsprozent des partiellen Kondensats bestehen, und(b) eine wirksame Menge eines ültraviolettlicht absorbierenden Mittels, das eine Verbindung der nachfolgenden allgemeinen Formelumfaßt, in welcher i|X die Bedeutung =C=0 oder =rC=C—C—OW,Y die Bedeutung H oder OH,Z die Bedeutung H, OH, OQ oder OW besitzt, wobei zumindest ein Rest Z eine HO-Gruppe ist, wenn Yein Η-Atom darstellt,
Q die Bedeutung -CH2(CH2)nSi(R2)χ(OR1)y, und W die Bedeutung ~c m H2m+1 hat' wobei der Index χ den Wert 0, 1 oder 2, der Index y den Wert 1, 2 oder 3, · die Summe (x + y) den Wert 3,
der Index η den Wert 0, 1 oder 2, undder Index m einen Wert von 1 bis 18 aufweist, R, Alkyl oder Alkanoyl mit 1 bis 6 Kohlenstoffatomen, und
R« Alkyl mit 1 bis 6 Kohlenstoffatomen ist,enthält. - 5. Gegenstand nach Anspruch 4, dadurch gekenn zeichne t, daß das Ultraviolettlicht absorbierende Mittel aus Verbindungen der nachfolgenden allgemeinen FormelnpH HOundNC—C—C=OOCH.ausgewählt ist, in welchen Q die Bedeutung-CH2Si(OCH3)3, -CH2SiCH3(OCH3)2, -CH2Si(CH3)2(OCH3), -CH2(CH2)2Si(OCH3)3, -CK2 (CH2)2SiCH3(OCH3)2, -CH2(CH2)2Si(CH3)2(OCH3), -CH2(CH2J2Si(OCOCH3) 3, • .-CH2(CH2)2SiCH3(OCOCH3)2, -CH2(CH2)2Si(CH3)2(OCOCH3), -CH2CH2Si(OCH3)3, -CH2CH2SiCH3(OCH3)2 oder -CH2CH2Si(CH3)2(OCH3) besitzt.
- 6. Gegenstand nach Anspruch 5, dadurch gekenn zeichnet, daß das Ultraviolettlicht absorbierende Mittel 4-[γ-(Triäthoxysilyl)propoxy]-2-hydroxybenzophenon ist.7- Gegenstand nach Anspruch 4, dadurch gekennzeichnet, daß der aliphatische Alkohol eine Mischung aus Methylalkohol und Isobutylalkohol umfaßt.8. Gegenstand nach Anspruch 4, dadurch gekennzeichnet, daß das partielle Silanol-Kondensat dasjenige von CH3Si(OH)3 ist.9. Gegenstand nach Anspruch 4, dadurch gekennzeichnet, daß die Überzugszubereitung auch ein Polysiloxanpolyäther-Copolymeres einschließt.10. Gegenstand nach Anspruch 4, dadurch gekennzeichne t, daß die kolloidale Dispersion in der ÜberzugsZubereitung vor dem Härten von etwa 18 bis etwa 25 Gewichtsprozent Feststoffe, bestehend im wesentlichen aus etwa 25 bis etwa 45 Gewichtsprozent der kolloidalen Kieselerde und von etwa 55 bis etwa 75 Gewichtsprozent des partiellen Kondensats, enthält.1-1. Gegenstand nach Anspruch 4, dadurch gekenn ζ e i c h η e t, daß das Substrat aus einem Polycarbonat hergestellt ist.·12. Gegenstand nach Anspruch 11, dadurch gekenn ze i chne t, daß das Polycarbonat transparent ist.13. Wässerige Überzugszubereitung, dadurch gekennzeichnet, daß sie(a) eine Dispersion einer kolloidalen Kieselerde in einer Lösung des partiellen Kondensats eines Silanols der allgemeinen Formel RSi(OH).,, worin R aus der Gruppe beste-hend aus Alkyl mit 1 bis 3 Kohlenstoffatomen und Aryl ausgewählt ist, wobei zumindest 70 Gewichtsprozent davon CII3Si(OH)3 ist, in einer Mischung eines aliphatischen Alkohols und Wasser, wobei die Dispersion von 10 bis Gewichtsprozent Feststoffe enthält, die Feststoffe im wesentlichen aus 10 bis 70 Gewichtsprozent der kolloidalen Kieselerde und 30 bis 90 Gewichtsprozent des partiellen Kondensats bestehen, und(b) eine wirksame Menge eines ültraviolettlicht absorbierenden Mittels, das eine Verbindung der nachfolgenden allgemeinen Formelumfaßt, in welcher · ,1X die Bedeutung =C=0 oder =rc=C—C—OW,CNY die Bedeutung H oder OH,
Z die Bedeutung H, OH, OQ oder OW besitzt, wobei zumindest.ein Rest Z eine HO-Gruppe ist, wenn Y ein H-Atom darstellt,Q die Bedeutung -CH0(CH0) Si(R0WOR1) , und W die Bedeutung -CJH +1 hat, wobei der Index χ den Wert 0, 1 oder 2, der Index y den Wert 1, 2 oder 3, die Summe (x + y) den Wert 3,
der Index η den Wert 0, 1 oder 2, und der Index m einen Wert von 1 bis 18 aufweist, R1 Alkyl oder Alkanoyl mit 1 bis· 6 Kohlenstoffatomen, und# U ft *4 «ι -R„ Alkyl mit 1 bis 6 Kohlenstoffatomen ist, enthält.14. Zubereitung nach Anspruch 13, dadurch g e k e η η ζ e i c h η e t, daß sie von etwa 5,0 bis etwa 10,0 Gewichtsteile des Ultraviolettlxcht absorbierenden Mittels auf 100 Gewichtsteile der Zubereitung auf Feststoffbasis enthält.15. Zubereitung nach Anspruch 13, dadurch gekennzeichnet, daß das Ultraviolettlxcht absorbierende Mittel aus Verbindungen der nachfolgenden allgemeinen FormelniH HQPH- ίο -undNC—C—C=OOCH-ausgewählt ist, in welchen Q die Bedeutung-CH2SiCH3(OCH3)2, -CH2SiCH3(OCH3J2, "-CH2Si(CH3)2(OCH3), -CH2(CH2J2Si(OCH3)3, -CH2(CH2)2SiCH3(OCH3) 2, -CH2(CH2)2Si(CH3)2(OCH3), -CH2(CH2)2Si(OCOCH3)3, -CH2(CH2)2SiCH3(OCOCH3)2, -CH2(CH2)2Si(CH3)2(OCOCH3)-CH2CH2SiCH3(OCH3)2 oder -CH-CH0Si(CH,)„(OCH.)besitzt.16. Zubereitung nach Anspruch 15, dadurch gekennzeichnet, daß das Ultraviolettlicht absorbie-- /11 -Ht ·» *rende Mittel 4-[γ-(Triäthoxysilyl)propoxy]-2-hydroxybenzophenon ist.1. - 7. Zubereitung nach Anspruch 13, dadurch gekennzeichnet, daß der aliphatische Alkohol eine Mischung aus Methylalkohol und Isobutylalkohol umfaßt.18. Zubereitung nach Anspruch 13, dadurch gekennzeichnet, daß das partielle Silanol-Kondensat dasjenige von CH-Si(OH)- ist.19. Zubereitung nach Anspruch 13, dadurch ge-r kenn zeichnet, daß die Überzugszubereitung auch ein Polysiloxanpolyäther-Copolymeres einschließt.20. Zubereitung nach Anspruch 13, dadurch gekenn ζ e i c h η e t, daß die kolloidale Dispersion von etwa 18 bis etwa 25 Gewichtsprozent Feststoffe enthält, die im wesentlichen aus etwa 25 bis etwa 45 Gewichtsprozent kolloidaler Kieselerde und von etwa 55 bis etwa 75 Gewichtsprozent aus dem partiellen Silanol-Kondensat, bestehen.- /12 -
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/154,622 US4278804A (en) | 1980-05-30 | 1980-05-30 | Ultraviolet light absorbing agents and compositions and articles containing same |
Publications (2)
Publication Number | Publication Date |
---|---|
DE3120854A1 true DE3120854A1 (de) | 1982-04-01 |
DE3120854C2 DE3120854C2 (de) | 1991-10-02 |
Family
ID=22552073
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19813153670 Expired - Lifetime DE3153670C2 (de) | 1980-05-30 | 1981-05-26 | |
DE19813120854 Granted DE3120854A1 (de) | 1980-05-30 | 1981-05-26 | "ultraviolettlicht absorbierende mittel, zubereitungen, welche diese mittel enthalten, und ihre verwendung |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19813153670 Expired - Lifetime DE3153670C2 (de) | 1980-05-30 | 1981-05-26 |
Country Status (10)
Country | Link |
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US (1) | US4278804A (de) |
JP (2) | JPS5721476A (de) |
KR (1) | KR840001765B1 (de) |
AU (1) | AU538861B2 (de) |
BR (1) | BR8103497A (de) |
CA (1) | CA1161055A (de) |
DE (2) | DE3153670C2 (de) |
ES (1) | ES502633A0 (de) |
FR (1) | FR2483422B1 (de) |
GB (1) | GB2079299B (de) |
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US4390660A (en) * | 1980-05-30 | 1983-06-28 | General Electric Company | Ultraviolet light absorbing compositions |
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US4443579A (en) * | 1981-12-08 | 1984-04-17 | General Electric Company | Silicone resin coating composition adapted for primerless adhesion to plastic and process for making same |
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US4495360A (en) * | 1982-04-30 | 1985-01-22 | General Electric Company | Ultraviolet light absorbing agents, method for making, compositions and articles containing same |
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US4477529A (en) * | 1983-12-29 | 1984-10-16 | General Electric Company | Photocurable polyfunctional acrylic coating and decorative articles coated therewith |
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- 1981-04-15 AU AU69546/81A patent/AU538861B2/en not_active Ceased
- 1981-05-14 CA CA000377600A patent/CA1161055A/en not_active Expired
- 1981-05-26 DE DE19813153670 patent/DE3153670C2/de not_active Expired - Lifetime
- 1981-05-26 DE DE19813120854 patent/DE3120854A1/de active Granted
- 1981-05-27 FR FR8110604A patent/FR2483422B1/fr not_active Expired
- 1981-05-29 KR KR1019810001906A patent/KR840001765B1/ko active IP Right Grant
- 1981-05-29 BR BR8103497A patent/BR8103497A/pt unknown
- 1981-05-29 JP JP8124181A patent/JPS5721476A/ja active Granted
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Also Published As
Publication number | Publication date |
---|---|
ES8301242A1 (es) | 1982-12-01 |
JPH0224316B2 (de) | 1990-05-29 |
KR840001765B1 (ko) | 1984-10-19 |
FR2483422A1 (fr) | 1981-12-04 |
DE3120854C2 (de) | 1991-10-02 |
JPH02117928A (ja) | 1990-05-02 |
CA1161055A (en) | 1984-01-24 |
DE3153670C2 (de) | 1992-08-13 |
GB2079299B (en) | 1984-08-30 |
KR830006367A (ko) | 1983-09-24 |
FR2483422B1 (fr) | 1985-07-26 |
ES502633A0 (es) | 1982-12-01 |
JPS5721476A (en) | 1982-02-04 |
US4278804A (en) | 1981-07-14 |
AU538861B2 (en) | 1984-08-30 |
JPH0314863B2 (de) | 1991-02-27 |
GB2079299A (en) | 1982-01-20 |
BR8103497A (pt) | 1982-02-24 |
AU6954681A (en) | 1981-12-03 |
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