CN108929420A - Environmental protection flame retardant polyurethane foam material and preparation method thereof for ceiling before car - Google Patents
Environmental protection flame retardant polyurethane foam material and preparation method thereof for ceiling before car Download PDFInfo
- Publication number
- CN108929420A CN108929420A CN201810685528.5A CN201810685528A CN108929420A CN 108929420 A CN108929420 A CN 108929420A CN 201810685528 A CN201810685528 A CN 201810685528A CN 108929420 A CN108929420 A CN 108929420A
- Authority
- CN
- China
- Prior art keywords
- flame retardant
- environmental protection
- polyurethane foam
- parts
- before car
- 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.)
- Pending
Links
Classifications
-
- 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
- C08G18/4009—Two or more macromolecular compounds not provided for in one single group of groups C08G18/42 - C08G18/64
- C08G18/4018—Mixtures of compounds of group C08G18/42 with compounds of group C08G18/48
-
- 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
-
- 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
- C08G18/48—Polyethers
- C08G18/4804—Two or more polyethers of different physical or chemical nature
-
- 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
- C08K5/49—Phosphorus-containing compounds
- C08K5/51—Phosphorus bound to oxygen
- C08K5/52—Phosphorus bound to oxygen only
- C08K5/521—Esters of phosphoric acids, e.g. of H3PO4
-
- 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
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/14—Glass
-
- 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
- C08G2110/00—Foam properties
- C08G2110/0083—Foam properties prepared using water as the sole blowing agent
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
The environmental protection flame retardant polyurethane foam material and preparation method thereof that the invention discloses a kind of for ceiling before car, raw material for the environmental protection flame retardant polyurethane foam material of ceiling before car include isocyanates and synthesis material, the mass ratio of the different hydrogen acid ether (hydrogen acid ester) and the synthesis material is 1:1.8, and the mass fraction of component and each component that the synthesis material includes is as follows: practicing and rises polyester: 35~40 parts；Polyethers 4113:35~50 part；Polyethers 450:35~65 part；Silicone oil: 2.5~3 parts；Glass fibre: 180~250 parts；Catalyst HP-12:1.3~1.7 part；Catalyst HP-54:1.1~1.5 part；Water: 3~4.5 parts；Fire retardant: 36~38 parts.Of the invention is suitable for the component of the environmental protection flame retardant polyurethane foam material of ceiling before car and the proportion of each component, it is made to have the characteristic that high temperature resistant, flame retardant property are high, high-intensitive and environmentally friendly.
Description
Technical field
The environmental protection flame retardant polyurethane foam material and preparation method thereof that the present invention relates to a kind of for ceiling before car.
Background technique
Currently, requirement of the people to car component also dramatically increases with the development of bus industry, the material of ceiling before car
Material need to have the characteristic of high temperature resistant, high fire-retardance, high intensity and high in environmental protection, and the characteristic of the material of ceiling is not usually before traditional car
It is able to satisfy the demand of people.
Summary of the invention
The purpose of the present invention is to overcome the defects in the prior art, provides a kind of environmental protection flame retardant for ceiling before car
The proportion of polyurethane foam material, its component and each component is suitable, make it have high temperature resistant, flame retardant property it is high, it is high-intensitive and
The characteristic of environmental protection.
In order to solve the above-mentioned technical problem, the technical scheme is that a kind of environmental protection flame retardant for ceiling before car
Polyurethane foam material, its raw material include isocyanates and synthesis material, the quality of the different hydrogen acid ether (hydrogen acid ester) and the synthesis material
Mass fraction than the component and each component that include for 1:1.8, the synthesis material is as follows:
Practice and rise polyester: 35~40 parts；
Polyethers 4113:35~50 part；
Polyethers 450:35~65 part；
Silicone oil: 2.5~3 parts；
Glass fibre: 180~250 parts；
Catalyst HP-12:1.3~1.7 part；
Catalyst HP-54:1.1~1.5 part；
Water: 3~4.5 parts；
Fire retardant: 36~38 parts.
Further, the silicone oil is silicone oil AK-8807.
Further, the fire retardant is fire retardant DMMP.
The present invention also provides a kind of preparation method for the environmental protection flame retardant polyurethane foam material of ceiling before car, sides
Include in method step:
(1) feedstock processing: liter polyester, polyethers 4113, polyethers 450 and isocyanates will be practiced and be dried；
(2) weighing and proportioning: each component in synthesis material is weighed respectively by mass fraction；
(3) it prepares synthesis material: each component in synthesis material being added in reaction kettle and is reacted and is sufficiently stirred, reaction temperature
Degree is 180~190 DEG C, and mixing time is 1~2h, and mixing speed is 100~200r/min, and synthesis material can be obtained；
(4) it synthesizes foamed material: isocyanates being mixed with synthesis material according to the mass ratio of 1:1.8, and is reacted, can be obtained
To the environmental protection flame retardant polyurethane foam material for ceiling before car.
Further, the temperature being dried in step (1) is 80 DEG C, and the time is 1~2h.
Further, in step (4), the reaction temperature of the isocyanates and synthesis material is 150~160 DEG C, mixing speed
For 500~600r/min, the reaction time is 3~4h.
After the above technical solution is adopted, isocyanates of the invention and synthesis material use the mass ratio of 1:1.8, and synthesis material
Component and each component between proportion select it is proper so that the foamed material flame retardant property of preparation is high, intensity is high, to extend
The service life of ceiling before car, vehicle and personal safety when having ensured burst accident, in addition, since foamed material is using former
Material is environmental protection material, because without releasing to the poisonous and hazardous substance of human body.
Specific embodiment
In order that the present invention can be more clearly and readily understood, the present invention is made into one below according to specific embodiment
Step detailed description.
Embodiment one
A kind of environmental protection flame retardant polyurethane foam material for ceiling before car, its raw material include isocyanates and conjunction
At material, the mass ratio of the different hydrogen acid ether (hydrogen acid ester) and the synthesis material is 1:1.8, the matter of component and each component that the synthesis material includes
It is as follows to measure number:
Practice and rise polyester: 35 parts；
4113:35 parts of polyethers；
450:35 parts of polyethers；
Silicone oil: 2.5 parts；
Glass fibre: 180 parts；
HP-12:1.3 parts of catalyst；
HP-54:1.1 parts of catalyst；
Water: 3 parts；
Fire retardant: 36 parts.
The silicone oil is silicone oil AK-8807.
The fire retardant is fire retardant DMMP.
A kind of preparation method for the environmental protection flame retardant polyurethane foam material of ceiling before car includes in method and step:
(1) feedstock processing: liter polyester, polyethers 4113, polyethers 450 and isocyanates will be practiced and be dried；
(2) weighing and proportioning: each component in synthesis material is weighed respectively by mass fraction；
(3) it prepares synthesis material: each component in synthesis material being added in reaction kettle and is reacted and is sufficiently stirred, reaction temperature
Synthesis material can be obtained for 180 DEG C, mixing time 1h, mixing speed 100r/min in degree；
(4) it synthesizes foamed material: isocyanates being mixed with synthesis material according to the mass ratio of 1:1.8, and is reacted, can be obtained
To the environmental protection flame retardant polyurethane foam material for ceiling before car.
The temperature being dried in step (1) is 80 DEG C, time 1h.
In step (4), the reaction temperature of the isocyanates and synthesis material is 150 DEG C, mixing speed 500r/min, instead
It is 3h between seasonable.
Embodiment two
A kind of environmental protection flame retardant polyurethane foam material for ceiling before car, its raw material include isocyanates and conjunction
At material, the mass ratio of the different hydrogen acid ether (hydrogen acid ester) and the synthesis material is 1:1.8, the matter of component and each component that the synthesis material includes
It is as follows to measure number:
Practice and rise polyester: 37.5 parts；
4113:37.5 parts of polyethers；
450:50 parts of polyethers；
Silicone oil: 2.75 parts；
Glass fibre: 215 parts；
HP-12:1.5 parts of catalyst；
HP-54:1.3 parts of catalyst；
Water: 3.75 parts；
Fire retardant: 37 parts.
The silicone oil is silicone oil AK-8807.
The fire retardant is fire retardant DMMP.
A kind of preparation method for the environmental protection flame retardant polyurethane foam material of ceiling before car includes in method and step:
(1) feedstock processing: liter polyester, polyethers 4113, polyethers 450 and isocyanates will be practiced and be dried；
(2) weighing and proportioning: each component in synthesis material is weighed respectively by mass fraction；
(3) it prepares synthesis material: each component in synthesis material being added in reaction kettle and is reacted and is sufficiently stirred, reaction temperature
Synthesis material can be obtained for 185 DEG C, mixing time 1.5h, mixing speed 250r/min in degree；
(4) it synthesizes foamed material: isocyanates being mixed with synthesis material according to the mass ratio of 1:1.8, and is reacted, can be obtained
To the environmental protection flame retardant polyurethane foam material for ceiling before car.
The temperature being dried in step (1) is 80 DEG C, time 1.5h.
In step (4), the reaction temperature of the isocyanates and synthesis material is 155 DEG C, mixing speed 550r/min, instead
It is 3.5h between seasonable.
Embodiment three
A kind of environmental protection flame retardant polyurethane foam material for ceiling before car, its raw material include isocyanates and conjunction
At material, the mass ratio of the different hydrogen acid ether (hydrogen acid ester) and the synthesis material is 1:1.8, the matter of component and each component that the synthesis material includes
It is as follows to measure number:
Practice and rise polyester: 40 parts；
4113:50 parts of polyethers；
450:65 parts of polyethers；
Silicone oil: 3 parts；
Glass fibre: 250 parts；
HP-12:1.7 parts of catalyst；
HP-54:1.5 parts of catalyst；
Water: 4.5 parts；
Fire retardant: 38 parts.
The silicone oil is silicone oil AK-8807.
The fire retardant is fire retardant DMMP.
A kind of preparation method for the environmental protection flame retardant polyurethane foam material of ceiling before car includes in method and step:
(1) feedstock processing: liter polyester, polyethers 4113, polyethers 450 and isocyanates will be practiced and be dried；
(2) weighing and proportioning: each component in synthesis material is weighed respectively by mass fraction；
(3) it prepares synthesis material: each component in synthesis material being added in reaction kettle and is reacted and is sufficiently stirred, reaction temperature
Synthesis material can be obtained for 190 DEG C, mixing time 2h, mixing speed 200r/min in degree；
(4) it synthesizes foamed material: isocyanates being mixed with synthesis material according to the mass ratio of 1:1.8, and is reacted, can be obtained
To the environmental protection flame retardant polyurethane foam material for ceiling before car.
The temperature being dried in step (1) is 80 DEG C, time 2h.
In step (4), the reaction temperature of the isocyanates and synthesis material is 160 DEG C, mixing speed 600r/min, instead
It is 4h between seasonable.
The following are a kind of flame retardant property tests for the environmental protection flame retardant polyurethane foam material of ceiling before car of the present invention
As a result:
Test stone requirement: the burning velocity of fire proofing should be not more than 100mm/min, distinguish if there are following situations
Test result is identified as required, and inspection result is divided into 5 grades of A, B, C, D, E:
A:(0mm/min): sample is exposed to 15S in flame, and extinguishing fire source is still unburned or sample can burn, but
Flame extinguishes before reaching the first measurement graticule, and no burning extent can be counted.
B: when tester, flame self-extinguish in 60s, and burning extent is not more than 50mm, then it is assumed that meet
Standard requirements.
C: burning speed measured value (mm/min)
When tester, flame extinguishes between the two measuring markings, and when being unsatisfactory for the 2nd article of situation, then by mark
Standard calculates burning velocity.
D: burning speed measured value (mm/min)
When tester, flame combustion reaches the second graticule, or since timing, sample long-time smoulder,
Then can in tester termination test when 20min, and record burning time and burning extent and by standard combustion rate.
E: sample has burnt in flame ignition 15s and has reached the first graticule, then it is assumed that sample is not able to satisfy burning speed
The requirement of degree.
Inspection result: A-B (0mm/min), using the environmental protection flame retardant poly- ammonia manufactured in the present embodiment for ceiling before car
Ester foaming material meets flame retardant property requirement.
Working principle of the present invention is as follows:
Isocyanates and synthesis material of the invention uses the mass ratio of 1:1.8, and between the component and each component of synthesis material
Proportion select it is proper so that the foamed material flame retardant property of preparation is high, intensity is high, so that extend ceiling before car uses the longevity
Life, vehicle and personal safety when having ensured burst accident, in addition, the raw material that uses due to foamed material is environmental protection material, because
Without releasing to the poisonous and hazardous substance of human body.
Particular embodiments described above, pair present invention solves the technical problem that, technical scheme and beneficial effects carry out
It is further described, it should be understood that the above is only a specific embodiment of the present invention, is not limited to this
Invention, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should be included in this hair
Within bright protection scope.
Claims (6)
1. a kind of environmental protection flame retardant polyurethane foam material for ceiling before car, it is characterised in that: its raw material include different
Cyanate and synthesis material, the mass ratio of the different hydrogen acid ether (hydrogen acid ester) and the synthesis material are 1:1.8, component that the synthesis material includes and
The mass fraction of each component is as follows:
Practice and rise polyester: 35~40 parts；
Polyethers 4113:35~50 part；
Polyethers 450:35~65 part；
Silicone oil: 2.5~3 parts；
Glass fibre: 180~250 parts；
Catalyst HP-12:1.3~1.7 part；
Catalyst HP-54:1.1~1.5 part；
Water: 3~4.5 parts；
Fire retardant: 36~38 parts.
2. the environmental protection flame retardant polyurethane foam material according to claim 1 for ceiling before car, it is characterised in that: institute
Stating silicone oil is silicone oil AK-8807.
3. the environmental protection flame retardant polyurethane foam material according to claim 1 for ceiling before car, it is characterised in that: institute
Stating fire retardant is fire retardant DMMP.
4. a kind of as claimed in any one of claims 1 to 3 for the environmental protection flame retardant polyurethane foam material of ceiling before car
Preparation method, it is characterised in that: include in method and step:
(1) feedstock processing: liter polyester, polyethers 4113, polyethers 450 and isocyanates will be practiced and be dried；
(2) weighing and proportioning: each component in synthesis material is weighed respectively by mass fraction；
(3) it prepares synthesis material: each component in synthesis material being added in reaction kettle and is reacted and is sufficiently stirred, reaction temperature is
180~190 DEG C, mixing time is 1~2h, and mixing speed is 100~200r/min, and synthesis material can be obtained；
(4) it synthesizes foamed material: isocyanates being mixed with synthesis material according to the mass ratio of 1:1.8, and is reacted, institute can be obtained
State the environmental protection flame retardant polyurethane foam material for ceiling before car.
5. the environmental protection flame retardant polyurethane foam material according to claim 4 for ceiling before car, it is characterised in that: step
Suddenly the temperature being dried in (1) is 80 DEG C, and the time is 1~2h.
6. the preparation method according to claim 5 for the environmental protection flame retardant polyurethane foam material of ceiling before car,
Be characterized in that: in step (4), the reaction temperature of the isocyanates and synthesis material is 150~160 DEG C, mixing speed is 500~
600r/min, reaction time are 3~4h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810685528.5A CN108929420A (en) | 2018-06-28 | 2018-06-28 | Environmental protection flame retardant polyurethane foam material and preparation method thereof for ceiling before car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810685528.5A CN108929420A (en) | 2018-06-28 | 2018-06-28 | Environmental protection flame retardant polyurethane foam material and preparation method thereof for ceiling before car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108929420A true CN108929420A (en) | 2018-12-04 |
Family
ID=64446346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810685528.5A Pending CN108929420A (en) | 2018-06-28 | 2018-06-28 | Environmental protection flame retardant polyurethane foam material and preparation method thereof for ceiling before car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108929420A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106008874A (en) * | 2016-07-07 | 2016-10-12 | 扬中市天正合成材料研究中心 | Environment-friendly and highly-flame-retardant foam material for goods shelf and preparation method of foam material |
| CN106046289A (en) * | 2016-07-07 | 2016-10-26 | 扬中市天正合成材料研究中心 | Environment-friendly foam material with high flame retardance for shells of toy cars for children and method for preparing environment-friendly foam material |
| CN107325247A (en) * | 2017-07-04 | 2017-11-07 | 扬中市天正合成材料研究中心 | A kind of secondary battery jar assembly polyurethane rings environment friendly flame-retardant expanded material and preparation method |
-
2018
- 2018-06-28 CN CN201810685528.5A patent/CN108929420A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106008874A (en) * | 2016-07-07 | 2016-10-12 | 扬中市天正合成材料研究中心 | Environment-friendly and highly-flame-retardant foam material for goods shelf and preparation method of foam material |
| CN106046289A (en) * | 2016-07-07 | 2016-10-26 | 扬中市天正合成材料研究中心 | Environment-friendly foam material with high flame retardance for shells of toy cars for children and method for preparing environment-friendly foam material |
| CN107325247A (en) * | 2017-07-04 | 2017-11-07 | 扬中市天正合成材料研究中心 | A kind of secondary battery jar assembly polyurethane rings environment friendly flame-retardant expanded material and preparation method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103173005B (en) | A kind of full water foamed high flame retardant polyester composition board and preparation method thereof | |
| CN107325247A (en) | A kind of secondary battery jar assembly polyurethane rings environment friendly flame-retardant expanded material and preparation method | |
| CN107474213A (en) | Thick stick environmental protection flame retardant polyurethane foam material and preparation method under a kind of bumper | |
| CN104530355A (en) | Environment-friendly highly flame-retardant automotive floor mat and preparation method thereof | |
| CN106146793A (en) | A kind of hard suitcase environmental protection high flame-retardant foamed material and preparation method thereof | |
| CN106084169A (en) | A kind of greening bark moulding environmental protection high flame-retardant foamed material and preparation method thereof | |
| CN104530351A (en) | Environment-friendly high-flame-retardant automotive interior soft roof composite material and preparation method thereof | |
| CN107266649A (en) | Air inlet pipe assembly environmental protection flame retardant expanded material and preparation method | |
| CN107298744A (en) | A kind of low-position bumper guard environmental protection flame retardant expanded material and preparation method | |
| CN104530357A (en) | Environmental-friendly high-flame retardancy composite material for stand column board of vehicle interior and preparation method of composite material | |
| CN107383306A (en) | A kind of mask environmental protection flame retardant polyurethane foam material and preparation method | |
| CN106008874A (en) | Environment-friendly and highly-flame-retardant foam material for goods shelf and preparation method of foam material | |
| CN108929420A (en) | Environmental protection flame retardant polyurethane foam material and preparation method thereof for ceiling before car | |
| CN108997551A (en) | Hard-foam polyurethane foamed material and preparation method for light truck fuel tank | |
| CN107298747A (en) | Polyurethane foam material for Auto Instrument desk and preparation method thereof | |
| CN107325252A (en) | A kind of air inlet pipe assembly environmental protection flame retardant polyurethane foam material and preparation method | |
| CN107325248A (en) | A kind of wind scooper environmental protection flame retardant polyurethane foam material and preparation method | |
| CN109053983A (en) | Environmental protection flame retardant foamed material and preparation method for car fuel tank chassis | |
| CN108774305A (en) | Environmental protection flame retardant polyurethane foam material and preparation method thereof for instrument desk of passenger car | |
| CN107312145A (en) | A kind of combined bumper environmental protection flame retardant polyurethane foam material and preparation method | |
| CN107312143A (en) | A kind of bumper environmental protection flame retardant expanded material and preparation method | |
| CN108727555A (en) | Environmental protection flame retardant expanded material and preparation method for pick up fuel tank | |
| CN108676146A (en) | Car environmental protection flame retardant expanded material and preparation method thereof | |
| CN109053984A (en) | Environmental protection flame retardant foamed material and preparation method for offroad vehicle fuel tank | |
| CN107298746A (en) | A kind of mask environmental protection flame retardant expanded material and preparation method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181204 |