JPH0326693B2 - - Google Patents
Info
- Publication number
- JPH0326693B2 JPH0326693B2 JP58120926A JP12092683A JPH0326693B2 JP H0326693 B2 JPH0326693 B2 JP H0326693B2 JP 58120926 A JP58120926 A JP 58120926A JP 12092683 A JP12092683 A JP 12092683A JP H0326693 B2 JPH0326693 B2 JP H0326693B2
- Authority
- JP
- Japan
- Prior art keywords
- diisocyanate
- polycarbonate diol
- polyurethane
- aliphatic
- prepolymer
- 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.)
- Expired - Lifetime
Links
- 229920000515 polycarbonate Polymers 0.000 claims description 24
- 239000004417 polycarbonate Substances 0.000 claims description 24
- 239000004814 polyurethane Substances 0.000 claims description 24
- 229920002635 polyurethane Polymers 0.000 claims description 24
- 238000000034 method Methods 0.000 claims description 19
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 18
- 150000002009 diols Chemical class 0.000 claims description 18
- 238000005299 abrasion Methods 0.000 claims description 14
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 claims description 12
- 125000005442 diisocyanate group Chemical group 0.000 claims description 12
- KORSJDCBLAPZEQ-UHFFFAOYSA-N dicyclohexylmethane-4,4'-diisocyanate Chemical group C1CC(N=C=O)CCC1CC1CCC(N=C=O)CC1 KORSJDCBLAPZEQ-UHFFFAOYSA-N 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 7
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 239000003431 cross linking reagent Substances 0.000 claims description 6
- 239000002904 solvent Substances 0.000 claims description 6
- -1 aliphatic triols Chemical class 0.000 claims description 4
- 239000012948 isocyanate Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 239000007795 chemical reaction product Substances 0.000 claims description 3
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 3
- 230000007062 hydrolysis Effects 0.000 claims description 2
- 238000006460 hydrolysis reaction Methods 0.000 claims description 2
- 230000003647 oxidation Effects 0.000 claims description 2
- 238000007254 oxidation reaction Methods 0.000 claims description 2
- 150000004072 triols Chemical group 0.000 claims description 2
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 claims 1
- YKYONYBAUNKHLG-UHFFFAOYSA-N n-Propyl acetate Natural products CCCOC(C)=O YKYONYBAUNKHLG-UHFFFAOYSA-N 0.000 claims 1
- 229940090181 propyl acetate Drugs 0.000 claims 1
- NQPDZGIKBAWPEJ-UHFFFAOYSA-N valeric acid Chemical compound CCCCC(O)=O NQPDZGIKBAWPEJ-UHFFFAOYSA-N 0.000 claims 1
- 238000000576 coating method Methods 0.000 description 16
- 239000011541 reaction mixture Substances 0.000 description 16
- 239000011248 coating agent Substances 0.000 description 13
- 239000005058 Isophorone diisocyanate Substances 0.000 description 6
- 125000001931 aliphatic group Chemical group 0.000 description 6
- NIMLQBUJDJZYEJ-UHFFFAOYSA-N isophorone diisocyanate Chemical compound CC1(C)CC(N=C=O)CC(C)(CN=C=O)C1 NIMLQBUJDJZYEJ-UHFFFAOYSA-N 0.000 description 6
- 239000011527 polyurethane coating Substances 0.000 description 6
- 239000004971 Cross linker Substances 0.000 description 5
- 239000004433 Thermoplastic polyurethane Substances 0.000 description 5
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 5
- OHJMTUPIZMNBFR-UHFFFAOYSA-N biuret Chemical compound NC(=O)NC(N)=O OHJMTUPIZMNBFR-UHFFFAOYSA-N 0.000 description 5
- 229920005862 polyol Polymers 0.000 description 5
- 150000003077 polyols Chemical class 0.000 description 5
- 239000000376 reactant Substances 0.000 description 5
- 239000000758 substrate Substances 0.000 description 5
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 4
- XXMIOPMDWAUFGU-UHFFFAOYSA-N hexane-1,6-diol Chemical compound OCCCCCCO XXMIOPMDWAUFGU-UHFFFAOYSA-N 0.000 description 4
- 238000003475 lamination Methods 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- 239000005057 Hexamethylene diisocyanate Substances 0.000 description 3
- XSTXAVWGXDQKEL-UHFFFAOYSA-N Trichloroethylene Chemical compound ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 description 3
- 239000003963 antioxidant agent Substances 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 3
- 238000003618 dip coating Methods 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000000080 wetting agent Substances 0.000 description 3
- 229940008841 1,6-hexamethylene diisocyanate Drugs 0.000 description 2
- OWYWGLHRNBIFJP-UHFFFAOYSA-N Ipazine Chemical compound CCN(CC)C1=NC(Cl)=NC(NC(C)C)=N1 OWYWGLHRNBIFJP-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000003078 antioxidant effect Effects 0.000 description 2
- XITRBUPOXXBIJN-UHFFFAOYSA-N bis(2,2,6,6-tetramethylpiperidin-4-yl) decanedioate Chemical compound C1C(C)(C)NC(C)(C)CC1OC(=O)CCCCCCCCC(=O)OC1CC(C)(C)NC(C)(C)C1 XITRBUPOXXBIJN-UHFFFAOYSA-N 0.000 description 2
- YHWCPXVTRSHPNY-UHFFFAOYSA-N butan-1-olate;titanium(4+) Chemical compound [Ti+4].CCCC[O-].CCCC[O-].CCCC[O-].CCCC[O-] YHWCPXVTRSHPNY-UHFFFAOYSA-N 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 150000002513 isocyanates Chemical class 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920001692 polycarbonate urethane Polymers 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- 239000005059 1,4-Cyclohexyldiisocyanate Substances 0.000 description 1
- VZXPHDGHQXLXJC-UHFFFAOYSA-N 1,6-diisocyanato-5,6-dimethylheptane Chemical compound O=C=NC(C)(C)C(C)CCCCN=C=O VZXPHDGHQXLXJC-UHFFFAOYSA-N 0.000 description 1
- QQZOPKMRPOGIEB-UHFFFAOYSA-N 2-Oxohexane Chemical compound CCCCC(C)=O QQZOPKMRPOGIEB-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 239000004970 Chain extender Substances 0.000 description 1
- OIFBSDVPJOWBCH-UHFFFAOYSA-N Diethyl carbonate Chemical compound CCOC(=O)OCC OIFBSDVPJOWBCH-UHFFFAOYSA-N 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- 239000005340 laminated glass Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 230000000269 nucleophilic effect Effects 0.000 description 1
- SSDSCDGVMJFTEQ-UHFFFAOYSA-N octadecyl 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CCCCCCCCCCCCCCCCCCOC(=O)CCC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 SSDSCDGVMJFTEQ-UHFFFAOYSA-N 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920005906 polyester polyol Polymers 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
- B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
- B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
- B32B17/1055—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer
- B32B17/1077—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer containing polyurethane
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/08—Processes
- C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/30—Low-molecular-weight compounds
- C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
- C08G18/3203—Polyhydroxy compounds
- C08G18/3206—Polyhydroxy compounds aliphatic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
- C08G18/44—Polycarbonates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/75—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/04—Coating
- C08J7/0427—Coating with only one layer of a composition containing a polymer binder
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/04—Coating
- C08J7/046—Forming abrasion-resistant coatings; Forming surface-hardening coatings
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2475/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Laminated Bodies (AREA)
- Polyurethanes Or Polyureas (AREA)
- Paints Or Removers (AREA)
- Coating Of Shaped Articles Made Of Macromolecular Substances (AREA)
Description
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第ïŒé èšèŒã®è£œæ³ã
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/394,556 US4435450A (en) | 1982-07-02 | 1982-07-02 | Method for applying abrasion resistant thin polyurethane coatings |
US394556 | 1982-07-02 | ||
US394610 | 1982-07-02 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5922917A JPS5922917A (ja) | 1984-02-06 |
JPH0326693B2 true JPH0326693B2 (ja) | 1991-04-11 |
Family
ID=23559450
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP58120926A Granted JPS5922917A (ja) | 1982-07-02 | 1983-07-01 | èæ©èæ§ããªãŠã¬ã¿ã³ã®è£œæ³ |
Country Status (3)
Country | Link |
---|---|
US (1) | US4435450A (ja) |
JP (1) | JPS5922917A (ja) |
CA (1) | CA1200161A (ja) |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2557360B2 (ja) * | 1985-08-20 | 1996-11-27 | ã¹ãã¹ ã¢ã³ã ãããŠâ ã¢ãœã·ãšã€ããã ã³ã³ããâ㺠ãâãšã«ã·â | 被è補ååã³ãã®è£œé æ³ |
US5039458A (en) * | 1987-12-21 | 1991-08-13 | W. R. Grace & Co.-Conn. | Method of making a hydrophilic, biocompatible, protein non-adsorptive contact lens |
US5880171A (en) * | 1989-05-01 | 1999-03-09 | 2C Optics, Inc. | Fast curing polymeric compositions for ophthalmic lenses and apparatus for preparing lenses |
US5278243A (en) * | 1992-01-14 | 1994-01-11 | Soane Technologies, Inc. | High impact resistant macromolecular networks |
DE4010485A1 (de) * | 1990-03-31 | 1991-10-02 | Ver Glaswerke Gmbh | Verfahren zur herstellung einer platte oder folie aus polycarbonat mit einer weichen kratzfestbeschichtung |
US5939188A (en) * | 1991-07-15 | 1999-08-17 | Pilkington Aerospace, Inc. | Transparent coating systems for improving the environmental durability of transparency substrates |
US5318827A (en) * | 1992-06-15 | 1994-06-07 | The Dow Chemical Company | Carbonate polymer laminate structure |
DE4243798A1 (de) * | 1992-12-23 | 1994-06-30 | Wolff Walsrode Ag | Mehrschichtige Polyurethan-Folie und ihre Verwendung zur Herstellung von Verpackungen fÃŒr lichtempfindliches Material |
US5648149A (en) * | 1994-03-29 | 1997-07-15 | Ppg Industries, Inc. | Adhesion of thermoset polyurethane to rigid transparent substrates |
US5877254A (en) * | 1996-07-22 | 1999-03-02 | Film Specialties, Inc. | Scratch-resistant anti-fog coating composition incorporating isocyanate-reactive surfactants |
US5994452A (en) * | 1996-11-05 | 1999-11-30 | Ppg Industries Ohio, Inc. | Primer for promoting adhesion of electroconductive metal oxide coating to plastic substrates |
US5840429A (en) * | 1996-11-05 | 1998-11-24 | Ppg Industries, Inc. | Aircraft transparency |
CA2214594C (en) * | 1996-11-05 | 2002-11-26 | Robert M. Hunia | Improved aircraft transparency |
US5776548A (en) * | 1996-11-05 | 1998-07-07 | Ppg Industries, Inc. | Primer for promoting adhesion of polyurethane to a metal oxide coating |
US7937023B2 (en) * | 2004-07-09 | 2011-05-03 | Eastman Kodak Company | Method and a composition for producing an undercoat layer using dialkyl malonate blocked isocyanates (for electrophotographic applications) |
CN101341104B (zh) * | 2005-08-24 | 2013-02-06 | Auldå ¬åž | æ¶åžçæŸç€ºçåå ¶ç产æ¹æ³ |
JP2007238797A (ja) * | 2006-03-09 | 2007-09-20 | Polymatech Co Ltd | å¡æçµæç©ããã³ç©å |
US7998529B2 (en) | 2007-10-10 | 2011-08-16 | Ppg Industries Ohio, Inc. | Methods for making polymeric substrates comprising a haze-free, self-healing coating and coated substrates made thereby |
US7939598B2 (en) * | 2007-12-12 | 2011-05-10 | Bayer Materialscience Ag | Polyisocyanate mixtures comprising cycloaliphatic structural elements |
US20100096062A1 (en) * | 2008-09-16 | 2010-04-22 | Serigraph, Inc. | Supported Article for Use in Decorating a Substrate |
US9957414B2 (en) | 2014-02-19 | 2018-05-01 | Ppg Industries Ohio, Inc. | Abrasion resistant polyurethane coating, coated article and method of manufacturing the same |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1010311A (en) | 1909-05-01 | 1911-11-28 | Edison Inc Thomas A | Sound-reproducer. |
US4045269A (en) | 1975-12-22 | 1977-08-30 | Sierracin Corporation | Transparent formable polyurethane polycarbonate lamination |
US4064194A (en) | 1976-05-28 | 1977-12-20 | Scm Corporation | High solids urethane coatings |
US4174240A (en) | 1976-10-01 | 1979-11-13 | Bayer Aktiengesellschaft | Novel transparent polyurethane polyureas for lamination of glazing materials |
US4079160A (en) | 1977-02-07 | 1978-03-14 | Joseph Philipson | Abrasion-resistant optical element |
DE2842805A1 (de) | 1978-09-30 | 1980-04-10 | Bayer Ag | Beschichtungsmassen |
DE2906113C2 (de) | 1979-02-17 | 1985-06-13 | Fa. Carl Freudenberg, 6940 Weinheim | Verwendung von feindispersen Polyurethanharnstoffen als HeiÃsiegelkleber zur Herstellung von heiÃsiegelbaren Einlagestoffen |
US4343839A (en) | 1980-12-15 | 1982-08-10 | Ashland Oil, Inc. | Vapor permeation curable polyester resin coating compositions for flexible substrates |
-
1982
- 1982-07-02 US US06/394,556 patent/US4435450A/en not_active Expired - Lifetime
-
1983
- 1983-06-08 CA CA000429930A patent/CA1200161A/en not_active Expired
- 1983-07-01 JP JP58120926A patent/JPS5922917A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
CA1200161A (en) | 1986-02-04 |
JPS5922917A (ja) | 1984-02-06 |
US4435450A (en) | 1984-03-06 |
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