CA2044134A1 - Thermoplastic material for sound-proofing and vibration insulating applications, and laminated and stratified products obtained from it, particularly for motor vehicles - Google Patents
Thermoplastic material for sound-proofing and vibration insulating applications, and laminated and stratified products obtained from it, particularly for motor vehiclesInfo
- Publication number
- CA2044134A1 CA2044134A1 CA002044134A CA2044134A CA2044134A1 CA 2044134 A1 CA2044134 A1 CA 2044134A1 CA 002044134 A CA002044134 A CA 002044134A CA 2044134 A CA2044134 A CA 2044134A CA 2044134 A1 CA2044134 A1 CA 2044134A1
- Authority
- CA
- Canada
- Prior art keywords
- laminated
- thermoplastic material
- stratified
- materials
- motor vehicles
- 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.)
- Abandoned
Links
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
- C08K3/00—Use of inorganic substances as compounding ingredients
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/162—Selection of materials
- G10K11/165—Particles in a matrix
-
- 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
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
-
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/01—Use of inorganic substances as compounding ingredients characterized by their specific function
- C08K3/013—Fillers, pigments or reinforcing additives
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Laminated Bodies (AREA)
- Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
- Vibration Prevention Devices (AREA)
Abstract
SUMMARY
A thermoplastic material for soundproofing and vibration insulating applications and laminated and stratified products obtained therefrom, particularly for motor vehicles; this material is comprised of: between 0.6 and 50% of chloropolyethylene; 20 and 95% of a filler material; and 4 to 60% of an extender component, the extender component being selected so that compatibility with the chloropolyethylene is maintained, this compatibility being defined by an annealing point with values less than 100°C.
This material is used to produce laminated and stratified products designed to be fitted in motor vehicles and in buildings and domestic appliances and industrial machines, to suppress and insulate vibration.
A thermoplastic material for soundproofing and vibration insulating applications and laminated and stratified products obtained therefrom, particularly for motor vehicles; this material is comprised of: between 0.6 and 50% of chloropolyethylene; 20 and 95% of a filler material; and 4 to 60% of an extender component, the extender component being selected so that compatibility with the chloropolyethylene is maintained, this compatibility being defined by an annealing point with values less than 100°C.
This material is used to produce laminated and stratified products designed to be fitted in motor vehicles and in buildings and domestic appliances and industrial machines, to suppress and insulate vibration.
Description
A TH~RMOPLASTIC MATERIAL FOR SOUNDPROOFING AND VIBRATI0~ 7SULA~ING
APPLICAT~ONS, AND LAMINATED A~D STP~TIFIED PRODUCTS OBTAINED FROM IT, PARTICULARLY FOR MOTOR VEHICLES.
scoPe of the invention The object of the present invention is thermoplastic materials and laminated and stratified products obtained therefrom, which have soundproofing and vibration insulating properties and which can be used, in particular, in the partition between the engine and the interior of a motor vehicle, such as a saloon car, and, in general, in other locations in cars, train~, aircraft, etc., and in wall~, floors, ceilings, and metal claddings of buildings and in domestic appliances and industrial machines ~in the latter two cases, for its vibration insulating properties).
Previous technolo~y The present applicant is the holder of Spanish patent number 554,644 for a "Procedure for obtaining a laminable thermoplastic material and a laminate obtained with this material" and of corresponding patents and patent applications submitted in all advanced industrialised countries, such as the United States of Americaj Great Britain, the Federal Republic of Germany, France, Japan, etc.
The said Spanish patent protects the exclusive right to produce a thermoplastic material which comprises chloropolyethylene, mixed with an oil, which can be replaced by a plasticizer, and fillers. The descriptions of these patents and those of the patents of the previous technology mentioned therein, are included here for reference.
Description of the obiect of the present invention A thermoplastic material, and the laminated and stratified products obtained therefrom, suitable for the aforementioned applications, and particularly for the partition between the engine and the interior of a motor vehicle, must possess:
- excellent acoustic characteristics (acoustic barrier and anti-vibration);
- good values of the property known as "fogging~ ~which is the shedding of volatile materials which are depo~ited on cold surfaces, particularIy glass surfaces such a5 the windowa of the interior of the vehicle, obstructing visibility through them);
- high flexibility;
- the capability of being easily fitted to other components and to the : , '~ ~ ' ` ` ` `
.
3 ~
wall3 of the vehicle interior or compartment;
- high stability and resistance at extreme temperatures;
- optimum valuea of Young's modulus, that i8 to say the elastic modulus under compression, and of the mechanical 10s9 factor ~known a3 the ~Delta~ tangent, which measureq the energy dissipating characteri~tics of the material);
- good ageing and adhesion properties;
- the capability of being easily laminated, processed and handled; and - the capability of being manufactured economically.
Descri~tion of the invention The applicant, on investigating the material and the products obtained therefrom, of the aforementioned Spanish patent numb~er 554,644, ~ound that the eatablished objective can be achieved by replacing the oil or plasticizer of said patent 554,644 by an extender selected from one or more of the following materials: plasticizers with a low volatility, hydrocarbonated oils, asphalt and/or other materials which perform the same function as an extender, provided that the overall compatibility between the extender and the chloropolyethylene is maintained, this compatibility being defined by an annealing point which, measured accordin~ to AST~ T-611, method B, must be less than 100C, and preferably less than 70C.
Consequently, the thermoplastic material is comprised of between 25 0.6 and 50~ of chloropolyethylene; between 20 and 95~ of filler; and between 4 and 60~ of the aforementioned extender; the material, furthermore, contains minor constituents in order to adapt the physical properties, of the material as a whole as well as some of it~
constituents, to the desired objective; in particular, "fogging"
30 (qhedding of volatile materials), measured according to standard 75201, is optimum.
This thermoplastic material is laminated, by itself or together with an absorbent material located in any position and/or in one or more layers, to give a laminated or stratified product which is then placed in the desired location.
Also, the material can be laminated by itself and then sent in that condi~ion to another factory, where it is joined to absorbent materials such as porous felt, synthetic foams, wood, cork, etc., to obtain stratified products which are then placed in the desired locations.
The extender constituent must be selected as appropriate for each particular case, but the annealing point must alwaya be le~a than 100C.
.
.
:: ~
: . . '~:
.: ~
APPLICAT~ONS, AND LAMINATED A~D STP~TIFIED PRODUCTS OBTAINED FROM IT, PARTICULARLY FOR MOTOR VEHICLES.
scoPe of the invention The object of the present invention is thermoplastic materials and laminated and stratified products obtained therefrom, which have soundproofing and vibration insulating properties and which can be used, in particular, in the partition between the engine and the interior of a motor vehicle, such as a saloon car, and, in general, in other locations in cars, train~, aircraft, etc., and in wall~, floors, ceilings, and metal claddings of buildings and in domestic appliances and industrial machines ~in the latter two cases, for its vibration insulating properties).
Previous technolo~y The present applicant is the holder of Spanish patent number 554,644 for a "Procedure for obtaining a laminable thermoplastic material and a laminate obtained with this material" and of corresponding patents and patent applications submitted in all advanced industrialised countries, such as the United States of Americaj Great Britain, the Federal Republic of Germany, France, Japan, etc.
The said Spanish patent protects the exclusive right to produce a thermoplastic material which comprises chloropolyethylene, mixed with an oil, which can be replaced by a plasticizer, and fillers. The descriptions of these patents and those of the patents of the previous technology mentioned therein, are included here for reference.
Description of the obiect of the present invention A thermoplastic material, and the laminated and stratified products obtained therefrom, suitable for the aforementioned applications, and particularly for the partition between the engine and the interior of a motor vehicle, must possess:
- excellent acoustic characteristics (acoustic barrier and anti-vibration);
- good values of the property known as "fogging~ ~which is the shedding of volatile materials which are depo~ited on cold surfaces, particularIy glass surfaces such a5 the windowa of the interior of the vehicle, obstructing visibility through them);
- high flexibility;
- the capability of being easily fitted to other components and to the : , '~ ~ ' ` ` ` `
.
3 ~
wall3 of the vehicle interior or compartment;
- high stability and resistance at extreme temperatures;
- optimum valuea of Young's modulus, that i8 to say the elastic modulus under compression, and of the mechanical 10s9 factor ~known a3 the ~Delta~ tangent, which measureq the energy dissipating characteri~tics of the material);
- good ageing and adhesion properties;
- the capability of being easily laminated, processed and handled; and - the capability of being manufactured economically.
Descri~tion of the invention The applicant, on investigating the material and the products obtained therefrom, of the aforementioned Spanish patent numb~er 554,644, ~ound that the eatablished objective can be achieved by replacing the oil or plasticizer of said patent 554,644 by an extender selected from one or more of the following materials: plasticizers with a low volatility, hydrocarbonated oils, asphalt and/or other materials which perform the same function as an extender, provided that the overall compatibility between the extender and the chloropolyethylene is maintained, this compatibility being defined by an annealing point which, measured accordin~ to AST~ T-611, method B, must be less than 100C, and preferably less than 70C.
Consequently, the thermoplastic material is comprised of between 25 0.6 and 50~ of chloropolyethylene; between 20 and 95~ of filler; and between 4 and 60~ of the aforementioned extender; the material, furthermore, contains minor constituents in order to adapt the physical properties, of the material as a whole as well as some of it~
constituents, to the desired objective; in particular, "fogging"
30 (qhedding of volatile materials), measured according to standard 75201, is optimum.
This thermoplastic material is laminated, by itself or together with an absorbent material located in any position and/or in one or more layers, to give a laminated or stratified product which is then placed in the desired location.
Also, the material can be laminated by itself and then sent in that condi~ion to another factory, where it is joined to absorbent materials such as porous felt, synthetic foams, wood, cork, etc., to obtain stratified products which are then placed in the desired locations.
The extender constituent must be selected as appropriate for each particular case, but the annealing point must alwaya be le~a than 100C.
.
.
:: ~
: . . '~:
.: ~
2~4~
Test methods used to measure the properties a) Fogging, that is to say the shedding of volatile materials from the material and the 3ubsequent condensation thereof on cold surfaces, especially glass surfaces, and in particular on the windows of the vehicle, expreqsed as the quantity of these volatile materials d2posited on the ~urfaces, must be as small as possible. Furthermore, the deposits produced by these volatile mater-als must have a very low opacity 90 that they do not obscure visibility through the glass, in particular, through the front windscreen of the vehicle. This property is measured by mean3 of DIN 75201, although SAAB SCANIA STD 1082 or FORD
LABORATORY TEST MET~OD EUBN 1-1 can also bs used.
b) The flexibility of the material is measured by static deflection, which is defined as the deflection occurring in a~test piece under its own weight when placed partly on and partly overhanging a ta~le. It has been observed experimentally that sheets made from very flexible materials are ~etter barriers to sound than sheets made from rigid materials.
c) Behaviour in low temperatures i8 expressed by the brittleness of the material~ o~tained. This i~ measured by allowing a 500 g steel ball to fall from a height of 30 cm, and observing if, at the low temperature of the test, cracks appear in the material.
d) ~esi~tance and stability to high temperatures is measured by placing the material on a slope of 75 for 5 hours at a temperature of 85C, and then observing if the material flows or not.
It has been observed that the product~ obtained in accordance with the invention do not undergo any alteration or modification.
e) ~oung's modulus, that is to say the elastic modulus under compres~ion, is measured with an instrument called a Metravib under a displacement of + 50.um. The Delta tangent, or tg S , represents the mechanical loss factor and expresses the dissipative characteristics of the material. It is measured in relation with the measurement of ~oung's modulus. The lower the value of modulus E' ~that is to say the real part of Young's modulus) the greater the elasticity of the material, and the greater the value of tg ~ the more dissipative it is.
Examples of realisation Some thermoplastic materials were prepared and numbered 1 to 5, the material of example 1 corresponding to a typical material prepared accordinq to Spanish patent 554,6~,q" and the materials of examples of 2 to 5 in accordance ~ith the invention.
From these material5 measurements were made, according to the test methods mentioned above, of the annealing point, fogging and .
. .
2 ~ 3 ~
brittleness .
Next, a table was produced of the compo~ition of the tnaterials of the various examples and the values of th~ afortementioned characteristics were measured.
In these tables, (1) designates the product Repex E-7 ~rom the firm REPSOL DERIVADOS; ( 2 ) designates the product SMR-60 from the firm REPSOL
DERIVADOS; and (3) designates the plaaticizer DIDP (abbreviation for di-isodecyl phthalate).
Ouantities of in~redients (parta/weiaht) Aromatic oil (1) 850 ~25 15 Semi-aromatic oil (2) 850 425 Plasticizer (3) 425 425 850 Filler 4500 4000 4500 4500 4500 Chloropolyethylene 225 200 225 225 200 20 PHYSICAL CH~RACTERISTICS
Annealing point (C) 102 63 20 60 20 Fogging incompatible 96 97 87 Brittleness ~C) -5 -25 -30 -30 With the materials of examples 2 to 5 and with a sample product already known on the market, based on asphalt plus an EPDM polymer (abbreviation for ethylene-propylene-diene monomer), measuremen~s were taken of the sound insulation in the form of the level of soundproofing, expressed in decibels, at various sound frequencies. These measurements were carried out using a booth consisting of two small chambers with identical anechoic characteristics, separated by a metal plate. In one of the chambers there is a loudspeaker and in the other a microphone by which the sound pressure level is measured.
Firstly, the sound pressure level is measured with the 0.8 mm steel plate in place, and then with the chambers separated by the complex formed by the steel plate, the absorbent (19 mm thick porous felt) and a 7 kg/m sheet obtained according to the invention. The difference, expressed in decibels, constitutes a measurement of the sound insulation of the complex formed by the absorbent material and the soundproofing material tested.
~ - , :
.
C~ 3 ~
Examples Sample Soundproofing level 2 3 g 5 FREQUENCIES decibels Hz125 10 15 14 14 14 1000 16 19 l9 l9 18 4000 37 43 gl 42 40 15 From this table it ia concluded that the soundproofing lèvel of the sample material is lower than that of examples 2 to 5.
The preqent invention has been described above, particularly as represented by ~ome preferred examples. However, the scope of the invention covera all variants falling under the following claims.
.
~ - : .; " . : . ~ :
Test methods used to measure the properties a) Fogging, that is to say the shedding of volatile materials from the material and the 3ubsequent condensation thereof on cold surfaces, especially glass surfaces, and in particular on the windows of the vehicle, expreqsed as the quantity of these volatile materials d2posited on the ~urfaces, must be as small as possible. Furthermore, the deposits produced by these volatile mater-als must have a very low opacity 90 that they do not obscure visibility through the glass, in particular, through the front windscreen of the vehicle. This property is measured by mean3 of DIN 75201, although SAAB SCANIA STD 1082 or FORD
LABORATORY TEST MET~OD EUBN 1-1 can also bs used.
b) The flexibility of the material is measured by static deflection, which is defined as the deflection occurring in a~test piece under its own weight when placed partly on and partly overhanging a ta~le. It has been observed experimentally that sheets made from very flexible materials are ~etter barriers to sound than sheets made from rigid materials.
c) Behaviour in low temperatures i8 expressed by the brittleness of the material~ o~tained. This i~ measured by allowing a 500 g steel ball to fall from a height of 30 cm, and observing if, at the low temperature of the test, cracks appear in the material.
d) ~esi~tance and stability to high temperatures is measured by placing the material on a slope of 75 for 5 hours at a temperature of 85C, and then observing if the material flows or not.
It has been observed that the product~ obtained in accordance with the invention do not undergo any alteration or modification.
e) ~oung's modulus, that is to say the elastic modulus under compres~ion, is measured with an instrument called a Metravib under a displacement of + 50.um. The Delta tangent, or tg S , represents the mechanical loss factor and expresses the dissipative characteristics of the material. It is measured in relation with the measurement of ~oung's modulus. The lower the value of modulus E' ~that is to say the real part of Young's modulus) the greater the elasticity of the material, and the greater the value of tg ~ the more dissipative it is.
Examples of realisation Some thermoplastic materials were prepared and numbered 1 to 5, the material of example 1 corresponding to a typical material prepared accordinq to Spanish patent 554,6~,q" and the materials of examples of 2 to 5 in accordance ~ith the invention.
From these material5 measurements were made, according to the test methods mentioned above, of the annealing point, fogging and .
. .
2 ~ 3 ~
brittleness .
Next, a table was produced of the compo~ition of the tnaterials of the various examples and the values of th~ afortementioned characteristics were measured.
In these tables, (1) designates the product Repex E-7 ~rom the firm REPSOL DERIVADOS; ( 2 ) designates the product SMR-60 from the firm REPSOL
DERIVADOS; and (3) designates the plaaticizer DIDP (abbreviation for di-isodecyl phthalate).
Ouantities of in~redients (parta/weiaht) Aromatic oil (1) 850 ~25 15 Semi-aromatic oil (2) 850 425 Plasticizer (3) 425 425 850 Filler 4500 4000 4500 4500 4500 Chloropolyethylene 225 200 225 225 200 20 PHYSICAL CH~RACTERISTICS
Annealing point (C) 102 63 20 60 20 Fogging incompatible 96 97 87 Brittleness ~C) -5 -25 -30 -30 With the materials of examples 2 to 5 and with a sample product already known on the market, based on asphalt plus an EPDM polymer (abbreviation for ethylene-propylene-diene monomer), measuremen~s were taken of the sound insulation in the form of the level of soundproofing, expressed in decibels, at various sound frequencies. These measurements were carried out using a booth consisting of two small chambers with identical anechoic characteristics, separated by a metal plate. In one of the chambers there is a loudspeaker and in the other a microphone by which the sound pressure level is measured.
Firstly, the sound pressure level is measured with the 0.8 mm steel plate in place, and then with the chambers separated by the complex formed by the steel plate, the absorbent (19 mm thick porous felt) and a 7 kg/m sheet obtained according to the invention. The difference, expressed in decibels, constitutes a measurement of the sound insulation of the complex formed by the absorbent material and the soundproofing material tested.
~ - , :
.
C~ 3 ~
Examples Sample Soundproofing level 2 3 g 5 FREQUENCIES decibels Hz125 10 15 14 14 14 1000 16 19 l9 l9 18 4000 37 43 gl 42 40 15 From this table it ia concluded that the soundproofing lèvel of the sample material is lower than that of examples 2 to 5.
The preqent invention has been described above, particularly as represented by ~ome preferred examples. However, the scope of the invention covera all variants falling under the following claims.
.
~ - : .; " . : . ~ :
Claims (5)
1) A thermoplastic material for soundproofing and vibration insulating applications which possesses excellent values of resistance to cold, "fogging" (shedding of volatile materials), flexibility, ageing, soundproofing, vibration insulation, adhesion, adaptibility and ease of lamination, which is comprised of: between 0.6 and 50% of chloropolyethylene; 20 and 95% of a filler material; and 4 to 60% of an extender selected from one or more low volatile plasticizers, hydrocarbonated oils, asphalts and/or other materials which perform the same function; the extender being selected so that compatibility is maintained with the chloropolyethylene, this compatibility being defined by an annealing point, measured according to ASTM D-611, method B, of less than 100°C and preferably less than 70°C; the material also contains minor component to adapt the physical properties, of the material as a whole and of some of its constituents, to the objective and so that the "fogging" value (shedding of volatile materials) measured according to standard DIN 75201 is optimum.
2) A thermoplastic material according to claim 1, characterised by the fact that it is laminated by itself or together with an absorbent material situated in any position and/or in one or more layers to give a laminated or stratified product designed in a preferrable case to be placed in the partition between the engine and the interior of a motor vehicle, and in other places of motor vehicles, trains, aircraft, etc., and also in walls, floors, ceilings, metal claddings of buildings and in domestic appliances and industrial machines.
3) A thermoplastic material according to claims 1 or 2, characterised by the fact that, after having been laminated by itself, it is stratified together with other absorbent materials such as porous felt, synthetic foams, wood, cork, etc., to meet the respective needs.
4) A laminated material obtained according to claim 2.
5) A stratified material obtained according to claim 3.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ESP8903403 | 1989-10-10 | ||
| ES8903403A ES2017833A6 (en) | 1989-10-10 | 1989-10-10 | Thermoplastic mass for applications of sound-proofing and vibration isolation and laminated and stratified materials obtained therefrom, particularly for motor vehicles. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2044134A1 true CA2044134A1 (en) | 1991-04-11 |
Family
ID=8264252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002044134A Abandoned CA2044134A1 (en) | 1989-10-10 | 1990-10-09 | Thermoplastic material for sound-proofing and vibration insulating applications, and laminated and stratified products obtained from it, particularly for motor vehicles |
Country Status (12)
| Country | Link |
|---|---|
| EP (1) | EP0450029A1 (en) |
| KR (1) | KR920701322A (en) |
| CN (1) | CN1050887A (en) |
| BR (1) | BR9006946A (en) |
| CA (1) | CA2044134A1 (en) |
| CS (1) | CS277649B6 (en) |
| ES (1) | ES2017833A6 (en) |
| MX (1) | MX171881B (en) |
| PL (1) | PL165443B1 (en) |
| RU (1) | RU2067988C1 (en) |
| TR (1) | TR25932A (en) |
| WO (1) | WO1991005819A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040028826A1 (en) * | 2002-07-01 | 2004-02-12 | Stefanie Goecke | Process for coating to obtain special surface effects |
| DE102005003057A1 (en) | 2005-01-22 | 2006-07-27 | Henkel Kgaa | Injectable, low viscosity rubber damping compounds |
| EP2934766B1 (en) | 2012-12-19 | 2017-07-19 | Henkel AG & Co. KGaA | Method for the sound damping and/or sound insulation of components |
| CN108752782A (en) * | 2018-05-18 | 2018-11-06 | 赵顺全 | A kind of preparation method of modified resin type ceiling |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1515900A (en) * | 1975-10-31 | 1978-06-28 | British Petroleum Co | Bituminous compositions |
| DE3431102A1 (en) * | 1984-08-24 | 1986-03-06 | Krestel Werkstoff GmbH, 4330 Mülheim | Thermoplastic filling composition based on chlorinated polyethylene with matched plasticiser migration capacity in plastics cable and lines |
| ES8706878A1 (en) * | 1986-05-05 | 1987-07-16 | Texsa Sa | Thermoplastic mass passed between rollers |
-
1989
- 1989-10-10 ES ES8903403A patent/ES2017833A6/en not_active Expired - Lifetime
-
1990
- 1990-09-27 CS CS904692A patent/CS277649B6/en unknown
- 1990-10-08 MX MX022735A patent/MX171881B/en unknown
- 1990-10-08 PL PL90287230A patent/PL165443B1/en unknown
- 1990-10-09 CA CA002044134A patent/CA2044134A1/en not_active Abandoned
- 1990-10-09 CN CN90108354A patent/CN1050887A/en active Pending
- 1990-10-09 WO PCT/ES1990/000034 patent/WO1991005819A1/en not_active Application Discontinuation
- 1990-10-09 EP EP90915471A patent/EP0450029A1/en not_active Withdrawn
- 1990-10-09 RU SU904895846A patent/RU2067988C1/en active
- 1990-10-09 BR BR909006946A patent/BR9006946A/en unknown
- 1990-10-09 TR TR90/0973A patent/TR25932A/en unknown
- 1990-10-09 KR KR1019910700576A patent/KR920701322A/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| KR920701322A (en) | 1992-08-11 |
| CS469290A3 (en) | 1992-08-12 |
| CS277649B6 (en) | 1993-03-17 |
| PL165443B1 (en) | 1994-12-30 |
| WO1991005819A1 (en) | 1991-05-02 |
| TR25932A (en) | 1993-11-01 |
| BR9006946A (en) | 1991-12-17 |
| MX171881B (en) | 1993-11-22 |
| EP0450029A1 (en) | 1991-10-09 |
| RU2067988C1 (en) | 1996-10-20 |
| CN1050887A (en) | 1991-04-24 |
| ES2017833A6 (en) | 1991-03-01 |
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