GB2174994A - Rust preventive sealant for joints between sheet steel panels - Google Patents
Rust preventive sealant for joints between sheet steel panels Download PDFInfo
- Publication number
- GB2174994A GB2174994A GB08609954A GB8609954A GB2174994A GB 2174994 A GB2174994 A GB 2174994A GB 08609954 A GB08609954 A GB 08609954A GB 8609954 A GB8609954 A GB 8609954A GB 2174994 A GB2174994 A GB 2174994A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sealant
- parts
- rust preventive
- weight
- epoxy resin
- 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.)
- Withdrawn
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Classifications
-
- 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
- C09K3/10—Materials in mouldable or extrudable form for sealing or packing joints or covers
-
- 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
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/20—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the epoxy compounds used
- C08G59/22—Di-epoxy compounds
- C08G59/226—Mixtures of di-epoxy compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L63/00—Compositions of epoxy resins; Compositions of derivatives of epoxy resins
-
- 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
- C09K2200/00—Chemical nature of materials in mouldable or extrudable form for sealing or packing joints or covers
- C09K2200/02—Inorganic compounds
- C09K2200/0204—Elements
- C09K2200/0208—Carbon
-
- 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
- C09K2200/00—Chemical nature of materials in mouldable or extrudable form for sealing or packing joints or covers
- C09K2200/02—Inorganic compounds
- C09K2200/0204—Elements
- C09K2200/0213—Metals
-
- 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
- C09K2200/00—Chemical nature of materials in mouldable or extrudable form for sealing or packing joints or covers
- C09K2200/02—Inorganic compounds
- C09K2200/0217—Salts
- C09K2200/0234—Phosphorous-containing compounds
-
- 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
- C09K2200/00—Chemical nature of materials in mouldable or extrudable form for sealing or packing joints or covers
- C09K2200/02—Inorganic compounds
- C09K2200/0239—Oxides, hydroxides, carbonates
-
- 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
- C09K2200/00—Chemical nature of materials in mouldable or extrudable form for sealing or packing joints or covers
- C09K2200/02—Inorganic compounds
- C09K2200/0243—Silica-rich compounds, e.g. silicates, cement, glass
- C09K2200/0247—Silica
-
- 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
- C09K2200/00—Chemical nature of materials in mouldable or extrudable form for sealing or packing joints or covers
- C09K2200/02—Inorganic compounds
- C09K2200/0243—Silica-rich compounds, e.g. silicates, cement, glass
- C09K2200/0252—Clays
-
- 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
- C09K2200/00—Chemical nature of materials in mouldable or extrudable form for sealing or packing joints or covers
- C09K2200/06—Macromolecular organic compounds, e.g. prepolymers
- C09K2200/0615—Macromolecular organic compounds, e.g. prepolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
-
- 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
- C09K2200/00—Chemical nature of materials in mouldable or extrudable form for sealing or packing joints or covers
- C09K2200/06—Macromolecular organic compounds, e.g. prepolymers
- C09K2200/0645—Macromolecular organic compounds, e.g. prepolymers obtained otherwise than by reactions involving carbon-to-carbon unsaturated bonds
- C09K2200/0647—Polyepoxides
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Epoxy Resins (AREA)
- Paints Or Removers (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Sealing Material Composition (AREA)
Abstract
A sealant comprises, by weight, 100 parts of a base resin component which is a nearly 1:1 mixture of bisphenol A type epoxy resin and a bisphenol F type epoxy resin, 40-80 parts of an auxiliary resin component which is at least one kind of dimer acid modified epoxy resin, 25-40 parts of a reactive synthetic rubber, 60-150 parts of flake filler 16, e.g. flaky silica powder, and 60-130 parts of rust preventive pigment 14, e.g. a mixture of zinc oxide and zinc phosphate. This rust preventive sealant is fairly high in the strength of adhesion to oiled steel surfaces, and rupture of a seal structure using this sealant by the action of excessive shearing or peeling force is always in the manner of cohesive rupture within the sealant layer, so that the sealant remains adhered to the panel surfaces even after rupture of the seal structure.
Description
SPECIFICATION
Rust preventive sealant for joints between sheet steel panels
In the manufacture of automobiles it is usual to apply a rust preventive sealant or adhesive to a joint between two panels made of sheet steel. Currently, chloroprene rubber base sealants and vinyl plastisol base sealants are prevailing for this purpose. In some cases epoxy resin base structural adhesives are used for rust preventive purposes too.
During practical use of an automobile it is not seldom that immoderate or excessive force attributed to an external cause, such as collision of the car body with something, acts on a joint between two steel panels in the car body to result in peeling of the rust preventive sealant from either of the two panels. It is likely that the peeling is undetected or overlooked even if a repair action is taken. Then a steel panel surface remains exposed in the damaged joint, and rusting of the steel panel begins in the joint region as rainwater or washing water intrudes into the joint.
It would therefore be desirable to be able provide a rust preventive sealant, which is suitable for application to joints between sheet steel panels and adheres strongly to steel surfaces, including oiled steel surfaces, such that the covering and rust inhibiting effects of the sealant last even a sealing structure provided between two panels by application of this sealant is broken by the action of immoderate shearing or peeling force.
The present invention provides a rust preventive sealant, comprising 100 parts by weight of a base resin component which is a mixture of 40-60 parts by weight of a bisphenol A type epoxy resin and 60-40 parts by weight of a bisphenol F type epoxy resin, 40-80 parts by weight of an auxiliary resin component which is at least one kind of dimer acid modified epoxy resin, 25-40 parts by weight of a reactive synthetic rubber, 60-150 parts by weight of a flake filler, and 60-130 parts by weight of a rust preventive pigment.
A rust preventive sealant according to the invention possesses an adhesive property and can be called a sealant or adhesive of cohesive rupture type. That is, in case of rupture of a seal layer formed between two steel sheets by using this rust preventive sealant by the action of excessive shearing or peeling force, cohesive rupture occurs within the seal layer before peeling of the seal layer from either of the two steel sheets takes place. As a result, the rust preventive sealant remains adhering to both of the two steel sheets in sufficient and nearly equal thicknesses. Therefore, the covering and rust preventive effects of the sealant lasts even after rupture of the seal structure. This rust preventive sealant is very suitable for application to joints between sheet steel panels used as automobile body parts.
It is usual that sheet steel panels as automobile body parts are assembled in a state coated with a rust inhibiting oil which is applied at the stage of press operations to form the panels. In the present invention a blend of a bisphenol A type epoxy resin and a bisphenol F type epoxy resin is used as a base resin component of the rust preventive sealant in view of good compatibility of these two types of epoxy resins with naphthene oil which is widely used as rust inhibiting oil for steel parts. These two types of epoxy resins are almost equivalent in many items of physical and chemical properties. The main purpose of jointly using these two types of epoxy resins is to facilitate to desirably adjust the liquid properties, and particularly viscosity of the resin component of the sealant.
The auxiliary resin component, which is at least one kind of dimer acid modified epoxy resin, and the reactive synthetic rubber are incorporated in the sealant composition mainly for the purpose of affording flexibility and elasticity to the sealant so that the sealant applied to a joint between two panels can follow deformation of the panels in the joint regions.
It is essential for a rust preventive sealant according to the invention to contain a specified amount of a flake filler besides a usually used rust preventive pigment. Primarily by reason of the presence of a flake filler this sealant becomes of a cohesive rupture type.
In the accompanying drawings:
Figure 1 is an explanatory and sectional illustration of a seal structure provided by applying a rust preventive sealant according to the invention to a joint between two panels;
Figure 2 is a perspective view of an assembly of two small steel panels used as specimens to test the rust preventive capabilities of sealants prepared as examples of the invention; and
Figure 3 shows the manner of causing forced rupture of a rust preventive seal structure in the specimen to be subjected to corrosion test.
As to the base resin component of a rust preventive sealant according to the invention, the use of a blend of a bisphenol Atype epoxy resin and a bisphenol F type epoxy resin is described hereinbefore. In general bisphenol A type epoxy resins are better than bisphenol F type epoxy resins in resistance to showering but are rather inferior in deliverability. Therefore, it is desirable to use these two types of epoxy resins in nearly the same quantities.
At least one kind of dimer acid modified epoxy resin is incorporated to render the rust preventive sealant sufficiently flexible and to thereby enhance the flexibility, impact resistance and peel strength of the sealant.
It is preferred to jointly use a dimer acid modified epoxy resin which has a relatively high molecular weight and is semi-solid at normal temperature and another dimer acid modified epoxy resin which has a relatively low molecular weight and is liquid at normal temperature. In such a case, it is suitable to use a blend of up to 40 wt% of the former (semi-solid) resin and the balance of the latter (liquid) resin.
The reactive synthetic rubber incorporated in a sealant according to the invention affords viscoelasticity to the sealant and therefore contributes to enhancement of the flexibility and impact resistance of the sealant.
Furthermore, the rubber enters the epoxy molecules of the resin cmponents with the effects of preventing permeation of moisture through the sealant and enhancing the rust preventive capability of the sealant
The importance of using a flake filler is described above. The material of the flake filler is not strictly limited. For example, a selection can be made from inorganic flaky powder materials such as silica powder, vermiculite powder, graphite powder, aluminium powder, and talc.
Examples of rust preventive pigments useful in the present invention are iron oxide powder, zinc powder, zinc oxide powder, zinc phosphate powder, trizinc phosphate powder, and zinc carbonate powder.
Besides these essential ingredients, rust preventive sealants according to the invention may contain an electroconductive filler such as carbon black because one often performs spot welding of the steel panels after application of a rust preventive sealant.
Furthermore, rust preventive sealants of the invention may contain a conventional curing agent for curing the resin components. For example, selection is made from dicyandiamide or modified dicyandiamide, acid anhydrides, hydrazines, carbamates and thiazoles.
Figure 1 illustrates a simplified model of a seal structure provided by applying a rust preventive sealant 10 of the invention to a joint between a steel panel 20 and another steel panel 22. In the seal layer formed of the sealant 10, rust preventive pigments 14, flake filler 16, and optional conductive filler 18 are uniformly dispersed in the matrix 12 of epoxy resins and synthetic rubber. After completion of the rust preventive seal structure the outer surfaces of the panel assembly is coated with a covering film 24 by an electrodeposition coating process. If excessive peeling force acts on the panel(s) 20 and/or 22, the seal layer 10 undergoes cohesive rupture without separating from the two panels 20, 22. That is, the panel surfaces in the joint region are still closely covered with the rust preventive sealant.Therefore, the rupture of the seal structure does not lead to rusting of the steel panels 20,22.
The invention will further be illustrated by the following nonlimitative examples.
Examples 1-4
As Examples 1-4 of the present invention, four differently composed rust preventive sealants were prepared by blending the ingredients shown in Table 1. The quantities of the ingredients are given in percent by weight. The curing agent was a 1:2 mixture of a low-temperature working type curing agent and a high-temperature working type curing agent. These sealants were tested as described hereinafter.
TABLE 1
Ex.1 Ex.2 Ex.3 Vex. 4 Comp. Comp.
Ex.1 Ex.2
Epoxy Resin
Bisphenol Atype 18 18 18 25 12 23
BisphenolFType 5 5 5 3 7 DimerAcidModified Epoxy Resin
High Molecular Weight 3 3 3 3 2 3
Low Molecular Weight 15 15 15 10 20 15
Reactive Synthetic
Rubber 8 8 8 8 8 8
Carbon Black 2 4 4 4 4 9
Curing Agent 3 3 3 3 3 3
Flake Pigment (silica) 20 25 30 30 10 10
Rust Preventive Pigment
Zinc Powder - - - - 10 24
Zinc Phosphate 5 5 5 5 5 5
Zinc Oxide 19 14 9 19 19
Comparative examples
As Comparative Examples 1 and 2, two kinds of rust preventive sealants not in accordance with the invention were prepared by modifying the compositions of Examples 1-4 in the manners as shown in Table 1. In Comparative Example 1, the acid modified epoxy resin component and the rust preventive pigment component were excessively increased whereas the flake filler was decreased. In Comparative Examples 2 the bisphenol F type epoxy resin was omitted, and the flake filler was decreased. These rust preventive sealants were tested along with the rust preventive sealants of Examples 1-4.
Evaluation tests
1. Basic Tests
The rust preventive sealants shown in Table 1 were each subjected to peeling test (generally according to
JIS K 6854), shearing test (at room temperature and at 1 000C, generally according to JIS K 6850), heat ageing test (generally according to JIS K 6829, item 17), low-temperature resistance test (generally according to JIS
K 6829, item 15) and moisture resistance test (generally according to JIS K 6830, item 21). The results are shown in Table 2.
2. Corrosion Test
Figure 2 shows the outline of specimens used in this test. Each specimen 30 was an assembly of an inner panel 32 and an outer panel 34 which was hemmed along its three edges so as to couple with the corresponding edges of the inner panel 32. The inner and outer panels 32,34 were made of an oiled steel sheet. The inner panel 32 was formed with drain holes 36. Each specimen 30 was 150 mm long and 150 mm wide. Preparatory to the hemming operation, a rust preventive sealant to be tested was applied to the outer panel 34, as indicated at 38 in Figure 2, along the edges to be fold back at a distance of about 5 mm from the bend line. The bead of the applied sealant had a diameter of about 3 mm.After the hemming operation the specimens 30 were left standing at room temperature for more than 1 h and then were entirely coated with a polyamide base paint by an electrodeposition coating process.
The corrosion test was a repetition of a sequence of (i) salt spraying (for 4 h, at 35 C, 5% sodium chloride solution), (ii) hot air drying (60"C, for 2 h), and (iii) moistening (for 2 h, at 50"C, at relative humidity of 95% or above). This sequence was cycled 200 times. The tested specimens were visually examined to judge the degree of rusting. The results are shown in Table 2.
3. Corrosion Test after Rupture of Seal Layer
As indicated by arrows F in Figure 3, peeling force was exerted on the inner and outer panels 32,34 of the specimens assigned to this test, until rupture of the seal layer 10 either within the seal layer 10 or at the interface between the seal layer 10 and either of the two panels 32,34.
The thus treated specimens were subjected to the above described corrosion test. In this case the sequence of (i) salt spraying, (ii) drying, and (iii) moistening was cycled 100 times. The tested specimens were visually examined to judge the degree of rusting. The results are shown in Table 2.
In Table 2, "A" in parentheses means cohesive rupture of the seal layer 10, and "B" means rupture or peel at the interface between the seal layer 10 and either of the two panels 32,34. Each fractional number before "B" indicates the proportion of samples in which the rupture was interfacial in the total samples: cohesive rupture of the seal layer occurred in the remaining samples.
TABLE 2
Sealant Peel Shear High Temp. Heat Aging Low Temp. Moisture Corrosion Corrosion
Strength Strength Shear (peel Resistance Resaistance Test Test after
Strength strength) (peel (peel Peeling strength) strength) (kg/25mm) (kg/cm) (kg/cm) (kg/25mm) (kg/25mm) (rusting) (rusting)
Ex. 1 14.5(A) 151(A) 86(A) 15(A) 17(A) 17(A) no no
Ex. 2 12(A) 136(A) 75(A) 11(A) 15(A) 10(A) no no
Ex. 3 9(A) 115(A) 70(A) 10(A) 13(A) 7(A) no no
Ex. 4 12(A) 195(A) 106(A) 9(A) 4(A) 7(A) no no
Comp.
Ex. 1 18(1/2B) 135(1/2B) 72(1/2B) 19(1/2B) 21(1/2B) 17(1/2B) no heavy
Comp.
Ex. 2 9(1/2B) 123(1/2B) 70(1/2B) 10(1/2B) 12(1/2B) 9(all B) no heavy As can be seen in Table 2, the rust preventive sealants as examples of the invention were fairiy high in adhesion strength and exhibited very good rust preventive effects even after forced rupture of the seal structure by the action of excessively great input force in the peeling directions. Such excellence in the rust preventive performance is attributed to the fact that the applied sealant remained nearly uniformly on both of the opposite two panel surfaces even after forced rupture of the seal structure, since the rupture was always in the manner of cohesive rupture of the rust preventive sealant layer itself.
Claims (8)
1. A rust preventive sealant for application to joints betwen sheet steel panels, comprising:
100 parts by weight of a base resin component which is a mixture of 40-60 parts by weight of a bisphenol
A type epoxy resin and 60-40 parts by weight of a bisphenol F type epoxy resin;
40-80 parts by weight of an auxiliary resin component which is at least one kind of dimer acid modified epoxy resin;
25-40 parts by weight of a reactive synthetic rubber;
60-150 parts by weight of a flake filler; and
60-130 parts by weight of a rust preventive pigment.
2. A sealant as claimed in claim 1, in which the auxiliary resin component is a mixture of up to 40 wt% of a first dimer acid modified epoxy resin which is relatively high in molecular weight and is semi-solid at room temperature and the balance of a second dimer acid modified epoxy resin which is relatively low in molecular weight and is liquid at room temperature.
3. A sealant as claimed in claim 1 or 2, in which the material of the flake filler is selected from the group consisting of silica, vermiculite, graphite, aluminium, and talc.
4. A sealant as claimed in claim 1, 2, or3, in which the rust preventive pigment comprises a pigment selected from the group consisting of iron oxide powder, zinc powder, zinc oxide powder, zinc phosphate powder, trizinc phosphate powder, and zinc carbonate powder.
5. A sealant as claimed in any preceding claim, further comprising an electroconductive filler.
6. A sealant as claimed in claim 5, in which the electroconductive filler is carbon black.
7. A sealant as claimed in any preceding claim, further comprising a curing agent for epoxy resins.
8. A sealant substantially as described in any of Examples 1 to 4.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9256985A JPS61250070A (en) | 1985-04-30 | 1985-04-30 | Rust-resisting agent for steel plate panel joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB8609954D0 GB8609954D0 (en) | 1986-05-29 |
| GB2174994A true GB2174994A (en) | 1986-11-19 |
Family
ID=14058055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB08609954A Withdrawn GB2174994A (en) | 1985-04-30 | 1986-04-23 | Rust preventive sealant for joints between sheet steel panels |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPS61250070A (en) |
| GB (1) | GB2174994A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1992003514A1 (en) * | 1990-08-27 | 1992-03-05 | Ems-Togo Ag | Heat-curable rubber glue and its use for the car blank construction |
| DE19702278A1 (en) * | 1997-01-23 | 1998-07-30 | Krempel August Soehne | Apparatus for insulating high voltage machinery component(s) |
| US7390859B2 (en) * | 2005-02-08 | 2008-06-24 | Ppg Industries Ohio, Inc. | Compositions and methods of making compositions exhibiting fuel resistance |
| US20130153142A1 (en) * | 2010-09-06 | 2013-06-20 | Nitto Denko Corporation | Reinforcing sheet and reinforcing method |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101029150B (en) | 2002-07-11 | 2011-03-30 | 三菱丽阳株式会社 | Viscosity modifier for plastisol composition, plastisol composition and product and molded product using the same |
| JP4605534B2 (en) * | 2004-03-12 | 2011-01-05 | 荒川化学工業株式会社 | 1-pack room temperature curable coating composition |
-
1985
- 1985-04-30 JP JP9256985A patent/JPS61250070A/en active Granted
-
1986
- 1986-04-23 GB GB08609954A patent/GB2174994A/en not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1992003514A1 (en) * | 1990-08-27 | 1992-03-05 | Ems-Togo Ag | Heat-curable rubber glue and its use for the car blank construction |
| DE19702278A1 (en) * | 1997-01-23 | 1998-07-30 | Krempel August Soehne | Apparatus for insulating high voltage machinery component(s) |
| DE19702278B4 (en) * | 1997-01-23 | 2004-07-22 | August Krempel Soehne Gmbh + Co. | Pasty putty |
| US7390859B2 (en) * | 2005-02-08 | 2008-06-24 | Ppg Industries Ohio, Inc. | Compositions and methods of making compositions exhibiting fuel resistance |
| US7834105B2 (en) * | 2005-02-08 | 2010-11-16 | Prc Desoto International, Inc. | Thiol-, hydroxyl-, amine- or vinyl-terminated polythioethers |
| US20130153142A1 (en) * | 2010-09-06 | 2013-06-20 | Nitto Denko Corporation | Reinforcing sheet and reinforcing method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0463088B2 (en) | 1992-10-08 |
| JPS61250070A (en) | 1986-11-07 |
| GB8609954D0 (en) | 1986-05-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |