CN1955247A - Nano modified solventless polyurethane adhesive sealant and its preparation process - Google Patents
Nano modified solventless polyurethane adhesive sealant and its preparation process Download PDFInfo
- Publication number
- CN1955247A CN1955247A CN 200510047453 CN200510047453A CN1955247A CN 1955247 A CN1955247 A CN 1955247A CN 200510047453 CN200510047453 CN 200510047453 CN 200510047453 A CN200510047453 A CN 200510047453A CN 1955247 A CN1955247 A CN 1955247A
- Authority
- CN
- China
- Prior art keywords
- polyurethane adhesive
- adhesive sealant
- nano modified
- solventless polyurethane
- sealant according
- 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
Landscapes
- Sealing Material Composition (AREA)
Abstract
The invention is a chemical building materials technology, special deals with a nano-modified solvent-free polyurethane adhesive sealant and preparation methods, which include components (weight shares) : hydroxy-terminated polyether 20-40; isocyanate 3-0; Plasticizer 10-30; inorganic filler 15-30; Nanowhiskers 0-8; catalyst 0.01-0.3; antioxidants 0.05-0.2. Its process line:(1)adding hydroxy-terminated polyether and plasticizer into mixing reactor, temperature to 110-115C, stirring in the vacuum of 0.09 +- 0.005MPa conditions; (2) adding inorganic filler into mixing reactor, continue stirring and cooling; (3) adding isocyanates; (4)adding need shares catalyst and antioxidants, continue stirring.
Description
Technical field
The invention belongs to the chemical building material technical field, particularly a kind of nano modified solventless polyurethane adhesive sealant and preparation method thereof.
Background technology
Seal gum (Sealant) is the material that is used for filling space (cavity, joint or seam etc.).But it is the unsetting material of a kind of mobile or squeeze note in use, can seal seam by pointing, can rely on drying, temperature variation, solvent evaporates or chemically crosslinked, with the base material stable adhesion, and finalize the design gradually become that plasticity is solid-state, visco-elasticity or elaxtic seal.
Over nearly 30 years, the application of seal gum in industry such as building, automobile, building, boats and ships, electric, space flight and civil area more and more widely.Wherein better performances, use and to mainly contain silicone based, polyurethanes and thiorubber class seal gum more widely.
Urethane is bonding to have good adhesiveproperties, mechanical and physical performance and resistance to chemical attack, heat-resisting, low temperature resistant etc. with sealing material, uses very extensive as bonding and elaxtic seal.At present, urethane is increasing as seal gum consumption in building and automobile industry, and a kind of as three big high-grade seal gums compares with other elastic sealant (gathering sulphur, silicone), and performance is similar, and price is relatively low.Advantages such as and monocomponent moisture cure type polyurethane seal gum is owing to need not situ metrology and allotment, and is easy to use are compared with the two component polyurethane seal gum of present large usage quantity, be from now on polyurethane sealant give priority to direction.
Nano whisker is as a kind of single crystal fibre material of microscopic dimensions, in the reinforcement modification of material, and ceramic toughening, there is good prospects for application aspects such as functional materials design.Calcium sulfate crystal whiskers is with terra alba (CaSO
4.2H
2O) the white loose spicule that makes for main raw material has the fineness of granulated filler, the length-to-diameter ratio of short fiber material, and the intensity height, good toughness, high temperature resistant, abrasion performance is easy to carry out surface treatment, and is good with resin, plastics, rubber phase dissolubility, can homodisperse.With CaSO
4Whisker joins the white carbon black in the alternative filler in the polyurethane sealant, and improves every performance of polyurethane sealant.This research has found that by the contrast experiment polyurethane sealant is adding nanometer CaSO
4Behind the whisker, the raising of various performance parameters.
Open day is on December 25th, 2002, publication number is to disclose a kind of " preparation of wet-solidifying single-component polyurethane adhesive and application thereof " in the Chinese patent application of CN 1386815A, it is with vulcabond and polyether glycol prepared in reaction, and each raw material consumption is as follows by weight percentage:
A kind of " preparation of wet-solidifying single-component polyurethane adhesive and application thereof ", it is with vulcabond and polyether glycol prepared in reaction, and each raw material consumption is as follows by weight percentage:
Polyether Glycols 27.6～58.0%, polyether-tribasic alcohol 0～13.0%, 4,4 '-diphenylmethanediisocyanate 31.4～55.0%, solvent 0～20%.
Open day is on December 25th, 2002, and publication number is to disclose a kind of " polyurethane binder/sealant composition, its precursor and preparation method " in the Chinese patent application of CN 1248606C, by weight, contains in its component:
100 parts of binder/sealant precursors;
Block agent 0.04-1.78 part;
Inert filler 32-76 part;
Inert plasticizer 24-134 part;
Other additives 1.2-3.6 part;
Inert solvent is less than 9 parts greater than 0 part.
Open day is on March 16th, 2005, and publication number is to disclose a kind of " a kind of solvent-free high-strength polyurethane joint sealant and preparation method thereof " in the Chinese patent application of CN 1594481A, by weight, contains in its component
End hydroxy polyether 15～40
Isocyanic ester 3～10
Softening agent 10～38
Mineral filler 6～25
Organic filler 3～15
Catalyzer 0.01～0.3
Oxidation inhibitor 0.01～0.2
Above-mentioned about polyurethane binder/sealant patent application or patent in the disclosed component, the noxious solvent that contains that has is being produced and is being used in the process of this class seal gum, can be for producing and user healthy brought harm.Do not adopting nano whisker aspect the use mineral filler.This research has improved the mechanical property of seal gum by substituting the part mineral filler with nano whisker.And the seal gum of production does not contain hazardous solvents such as deleterious benzene,toluene,xylene.
Summary of the invention
The purpose of this invention is to provide a kind of solvent-free, high solids content, good, the anti-ultraviolet nano whisker modified no-solvent polyurethane seal gum of mechanical property, and the preparation method of above-mentioned seal gum is provided.
Technical solution of the present invention can realize according to following mode:
A kind of nano modified solventless polyurethane adhesive sealant is characterized in, comprises following component (ratio of weight and number):
End hydroxy polyether 20～40
Isocyanic ester 3～10
Softening agent 10-30
Mineral filler 15～30
Nano whisker 1～8
Catalyzer 0.01～0.3
Oxidation inhibitor 0.05～0.2.
It is that 4500～6000 terminal hydroxy group ternary polyoxytrimethylene ether, molecular-weight average are that 6000～8000 hydroxy-terminated polytetrahydrofuran ether, molecular-weight average are 5500～6500 the polyoxytrimethylene-castor oil polyhydric alcohol copolyether or the polytetrahydrofuran-rare copolyether of oxidation rain of molecular-weight average 2000～4000 that described end hydroxy polyether can be selected molecular-weight average.
Described isocyanic ester can be selected tolylene diisocyanate, 1,5-naphthalene diisocyanate, diphenylmethanediisocyanate, isophorone diisocyanate, hexamethylene diisocyanate, or two kinds mixture wherein, mix when using, the blending ratio of its two kinds of mixtures is 1: 1～1.5.
Described softening agent is dibutyl phthalate, dioctyl phthalate (DOP), Dinonylphthalate or Di Iso Decyl Phthalate.
Described mineral filler is Shawinigan black, titanium dioxide, lime carbonate, talcum powder, 4A molecular sieve, Tai-Ace S 150, magnesium oxide, organobentonite or thermal silica.
Described nano whisker is a calcium sulfate crystal whiskers.
Described catalyzer is to hang sour dibutyl tin, triethylene diamine, N-methyl beautiful jade, trolamine in stannous octoate, February.
Described oxidation inhibitor is 2,6 ditertiary butyl p cresol, tetramethylene β-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid pentaerythritol ester, 4,4 '-two uncle's octyl diphenylamines.
The preparation technology of above-mentioned nano modified solventless polyurethane adhesive sealant, can carry out as follows successively:
(1) end hydroxy polyether and the softening agent of getting required umber joins in the stirred autoclave, with 1.5 ℃/minute, is warming up to 110～115 ℃, is to stir under 0.09 ± 0.005MPa condition in vacuum tightness, vacuum outgas 1～2 hour;
(2) with the mineral filler of required umber 120 ± 5 ℃ of oven dry after 2～3 hours down, add in the stirred autoclave after being cooled to 60～80 ℃, continuing in vacuum tightness is to stir under 0.09 ± 0.005MPa condition 1～2 hour, is cooled to 60～80 ℃;
(3) isocyanic ester of the required umber of adding with 0.5 ℃/minute, is warming up to 80～90 ℃, is to react under 0.092 ± 0.005MPa condition 2～3 hours in vacuum tightness, is cooled to 60～80 ℃;
(4) catalyzer and the oxidation inhibitor of the required umber of adding under the inflated with nitrogen protective condition continued stirring reaction 1～2 hour;
(5) viscosity of testing product reaches 12 * 10
5During mPas, be cooled to 20～30 ℃, stop to stir, vacuumized 10～15 minutes:
(6) inflated with nitrogen is removed vacuum to normal pressure, and material goes out still then, through check, divide packing and make finished product.
When above-mentioned isocyanic ester is solid aromatic family isocyanic ester, need in 60～80 ℃ of oil baths, to add again after the fusing.
Compared with the prior art, advantage of the present invention is:
1, no any solvent composition in its component prescription, do not have harm to environment and production, user's health:
2, mechanical properties such as the thixotropy of seal gum and tensile strength have been improved by adding nano whisker;
3, the mechanical properties such as tensile strength of seal gum have been improved by the interpolation nano whisker.
Embodiment
Illustrate that by the following examples prescription of the present invention constitutes and concrete processing step, but be not subjected to the restriction of embodiment.
Embodiment 1:
Press following prescription and the solvent-free high-strength polyurethane joint sealant of prepared:
Prescription:
End hydroxy polyether is that molecular-weight average is terminal hydroxy group ternary polyoxygenated third rare ether of 5000;
Isocyanic ester is a tolylene diisocyanate:
Softening agent is a dibutyl phthalate;
Mineral filler is Shawinigan black or thermal silica;
Nano whisker is CaSO
4Whisker;
Catalyzer is: hang sour dibutyl tin and triethylene diamine February
Oxidation inhibitor is 2, and the 6-di-t-butyl is to sylvan.
Preparation technology:
(1) get the 25kg end hydroxy polyether and join in the stirred autoclave, be warming up to 80 ℃ with the speed oil bath of 1.5 ℃/min, vacuum tightness be stir under the 0.095MPa condition, vacuum outgas 1h, be cooled to 60 ℃;
(2) add the 3.75kg isocyanic ester, oil bath is warming up to 80 ℃ in 30min, reacts 2h under the inflated with nitrogen protective condition;
(3) softening agent of adding 10kg is to stir 1h under 0.090 ± 0.005MPa condition in 80 ℃ of temperature and vacuum tightness;
(4) mineral filler and the 3kg CaSO of adding 13kg
4Whisker, even back to be mixed is to stir 1h under 0.090 ± 0.005MPa condition in vacuum tightness, is cooled to 30 ℃:
(5) add the catalyzer of 0.15kg and the oxidation inhibitor of 0.08kg, continue reaction 1h:
(6) viscosity of testing product reaches 12 * 10
5During mPas, stop to stir, continue to vacuumize 10min;
(7) inflated with nitrogen is removed vacuum to normal pressure, and material goes out still then;
(8) through check, divide packing and make finished product.
The mensuration of above-mentioned parameter is tested by the method for stipulating in the following standard:
The mensuration of GB/T528-1999 vulcanized rubber or thermoplastic elastomer tensile property:
The mensuration of GB/T529-1999 vulcanized rubber or thermoplastic elastomer tear strength:
The pocket sclerometer of GB/T531-1999 rubber is pressed people's hardness test method:
In the foregoing description inflated with nitrogen protection purpose be for guarantee to be reflected at the air state of isolation under carry out, do not have strict demand so fill nitrogen pressure.
Embodiment 2:
Do not add CaSO
4Whisker, all the other are every identical with embodiment 1.
Embodiment 3:
Press following prescription and the solvent-free high-strength polyurethane joint sealant of prepared:
Prescription:
End hydroxy polyether is that molecular-weight average is 6000～8000 hydroxy-terminated polytetrahydrofuran ether;
Isocyanic ester is a tolylene diisocyanate;
Softening agent is a dioctyl phthalate (DOP);
Mineral filler is titanium dioxide or lime carbonate:
Nano whisker is CaSO
4Whisker;
Catalyzer is a dibutyl tin laurate;
Oxidation inhibitor is 2, and the 6-di-t-butyl is to sylvan.
Preparation technology:
(1) getting the 30kg end hydroxy polyether and the 16kg softening agent joins in the stirred autoclave, be warming up to 11 ℃ with the speed oil bath of 1.5 ℃/min, is to stir under 0.090 ± 0.005MPa condition in vacuum tightness, vacuum outgas 2h;
(2) add 17kg mineral filler and 4kgCaSO
4Whisker, continuing in vacuum tightness is to stir 2h under 0.090 ± 0.005MPa condition, is cooled to 80 ℃;
(3) adding the 4.1kg isocyanic ester, be warming up to 90 ℃ with the speed oil bath of 0.5 ℃/min, is to react 3h under 0.090 ± 0.005MPa condition in vacuum tightness, is cooled to 80 ℃;
(4) under the inflated with nitrogen protective condition, add 0.25kg catalyzer and 0.15kg oxidation inhibitor, continue stirring reaction 2h;
(5) viscosity of testing product reaches 12 * 10
5During mPas, be cooled to 30 ℃, stop to stir, vacuumize 15min;
(6) inflated with nitrogen is removed vacuum to normal pressure, and material goes out still then, through check, divide packing and make finished product.By the solvent-free high-strength polyurethane joint sealant that above-mentioned prescription and technology make, its performance physical and chemical index is as follows.All the other are with embodiment 1.
Embodiment 4:
Do not add CaSO
4Whisker, all the other are every identical with example 3.
Embodiment 5:
Press following prescription and the solvent-free high-strength polyurethane joint sealant of prepared:
Prescription:
End hydroxy polyether is that molecular-weight average is polyoxygenated third a rare castor oil polyhydric alcohol copolyether of 5500～6500;
Isocyanic ester is a diphenylmethanediisocyanate;
Softening agent is a dioctyl phthalate (DOP);
Mineral filler is talcum powder and acetylene carbon black;
Nano whisker is CaSO
4Whisker;
Catalyzer is a triethylene diamine;
Oxidation inhibitor is 2, and the 6-di-t-butyl is to sylvan.
Preparation technology:
(1) getting the 30kg end hydroxy polyether and the 15kg softening agent joins in the stirred autoclave, be warming up to 120 ℃ with the speed oil bath of 1.5 ℃/min, is to stir under 0.090 ± 0.005MPa condition in vacuum tightness, vacuum outgas 2h;
(2) add 16kg mineral filler and 3kgCaSO
4Whisker; , continuing in vacuum tightness is to stir 2h under 0.090 ± 0.005MPa condition, is cooled to 80 ℃;
(3) adding the 5.1kg isocyanic ester, be warming up to 90 ℃ with the speed oil bath of 0.5 ℃/min, is to react 3h under 0.090 ± 0.005MPa condition in vacuum tightness, is cooled to 80 ℃;
(4) under the inflated with nitrogen protective condition, add 0.3kg catalyzer and 0.2kg oxidation inhibitor, continue stirring reaction 2h;
(5) viscosity of testing product reaches 12 * 10
5During mPas, be cooled to 30 ℃, stop to stir, vacuumize 15min;
(6) inflated with nitrogen is removed vacuum to normal pressure, and material goes out still then, through check, divide packing and make finished product.
Embodiment 6:
Do not add CaSO
4Whisker, all the other are every identical with example 5.
By the solvent-free high-strength polyurethane joint sealant that above-mentioned prescription and technology make, its performance physical and chemical index is as follows:
| Example 1 | Example 2 | Example 3 | Example 4 | Example 5 | Example 6 | |
| Shearing resistance (MPa) | 1.22 | 1.33 | 7.8 | 8.3 | 6.1 | 6.5 |
| Breaking tenacity (MPa) | 1.53 | 1.64 | 8.4 | 8.9 | 6.7 | 7.0 |
| Elongation at break (%) | 500 | 500 | 550 | 530 | 550 | 530 |
| Hardness (Shao Shi A0 | 47±3 | 47±3 | 50±3 | 51±2 | 49±3 | 50±2 |
| Surface drying time (minute) | 50 | 50 | 40 | 40 | 45 | 45 |
The mechanical property that above example has been added the seal gum of nano whisker as can be seen is improved, and does not influence other performance.Illustrate that the interpolation of nano whisker has improved the performance of seal gum.
Above example only is used to illustrate the making processes and the performance of such seal gum, and the making of not representing seal gum just is confined to above several.In fact, as required, the raw material of mentioning in all literary compositions can be produced the seal gum of respective performances.
The present invention can be widely used in fields such as buildings, square, highway, airport construction, automobile, boats and ships, freight container, machine industry, electronics, electric power, aviation/space flight, low temperature technique.
Claims (10)
1, a kind of nano modified solventless polyurethane adhesive sealant is characterized in that, comprises following component (ratio of weight and number):
End hydroxy polyether 20～40
Isocyanic ester 3～10
Softening agent 10-30
Mineral filler 15～30
Nano whisker 0～8
Catalyzer 0.01～0.3
Oxidation inhibitor 0.05～0.2.
2, nano modified solventless polyurethane adhesive sealant according to claim 1 is characterized in that: described end hydroxy polyether is that molecular-weight average is that 4500～6000 terminal hydroxy group ternary polyoxytrimethylene ether, molecular-weight average are that 6000～8000 hydroxy-terminated polytetrahydrofuran ether, molecular-weight average are 5500～6500 the polyoxytrimethylene-castor oil polyhydric alcohol copolyether or the polytetrahydrofuran-rare copolyether of oxidation rain of molecular-weight average 2000～4000.
3, nano modified solventless polyurethane adhesive sealant according to claim 1 and 2, it is characterized in that: described isocyanic ester is a tolylene diisocyanate, 1,5-naphthalene diisocyanate, diphenylmethanediisocyanate, isophorone diisocyanate, 1, hexamethylene-diisocyanate, or two kinds mixture wherein, mix when using, the blending ratio of its two kinds of mixtures is 1: 1～1.5.
4, nano modified solventless polyurethane adhesive sealant according to claim 1 and 2 is characterized in that: described softening agent is dibutyl phthalate, dioctyl phthalate (DOP), Dinonylphthalate or Di Iso Decyl Phthalate.
5, nano modified solventless polyurethane adhesive sealant according to claim 1 and 2 is characterized in that: described mineral filler is Shawinigan black, titanium dioxide, lime carbonate, talcum powder, 4A molecular sieve, Tai-Ace S 150, magnesium oxide, organobentonite or thermal silica.
6, nano modified solventless polyurethane adhesive sealant according to claim 1 and 2 is characterized in that: described nano whisker is a calcium sulfate crystal whiskers.
7, nano modified solventless polyurethane adhesive sealant according to claim 1 and 2 is characterized in that: described catalyzer is to hang sour dibutyl tin, triethylene diamine, N-methyl beautiful jade, trolamine in stannous octoate, February.
8, nano modified solventless polyurethane adhesive sealant according to claim 1 and 2, it is characterized in that: described oxidation inhibitor is 2,6-ditertbutylparacresol, tetramethylene β-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid pentaerythritol ester, 4,4 '-two uncle's octyl diphenylamines.
9, the preparation technology of nano modified solventless polyurethane adhesive sealant according to claim 1 is characterized in that, carries out successively as follows:
(1) end hydroxy polyether and the softening agent of getting required umber joins in the stirred autoclave, with 1.5 ℃/minute, is warming up to 110～115 ℃, is to stir under 0.09 ± 0.005MPa condition in vacuum tightness, vacuum outgas 1～2 hour;
(2) with the mineral filler of required umber 120 ± 5 ℃ of oven dry after 2～3 hours down, add in the stirred autoclave after being cooled to 60～80 ℃, continuing in vacuum tightness is to stir under 0.09 ± 0.005MPa condition 1～2 hour, is cooled to 60～80 ℃;
(3) isocyanic ester of the required umber of adding with 0.5 ℃/minute, is warming up to 80～90 ℃, is to react under 0.092 ± 0.005MPa condition 2～3 hours in vacuum tightness, is cooled to 60～80 ℃;
(4) catalyzer and the oxidation inhibitor of the required umber of adding under the inflated with nitrogen protective condition continued stirring reaction 1～2 hour;
(5) viscosity of testing product reaches 12 * 10
5During mPas, be cooled to 20～30 ℃, stop to stir, vacuumized 10～15 minutes:
(6) inflated with nitrogen is removed vacuum to normal pressure, and material goes out still then, through check, divide packing and make finished product.
10, the preparation technology of nano modified solventless polyurethane adhesive sealant according to claim 9 is characterized in that: when described isocyanic ester is solid aromatic family isocyanic ester, need to add after the fusing in 60～80 ℃ of oil baths again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510047453 CN1955247A (en) | 2005-10-19 | 2005-10-19 | Nano modified solventless polyurethane adhesive sealant and its preparation process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510047453 CN1955247A (en) | 2005-10-19 | 2005-10-19 | Nano modified solventless polyurethane adhesive sealant and its preparation process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1955247A true CN1955247A (en) | 2007-05-02 |
Family
ID=38062805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510047453 Pending CN1955247A (en) | 2005-10-19 | 2005-10-19 | Nano modified solventless polyurethane adhesive sealant and its preparation process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1955247A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101289574B (en) * | 2008-06-06 | 2010-09-29 | 上海世鹏聚氨酯科技发展有限公司 | Wear resistant elastic material of polyurethane modified by nano-steel slag |
| CN102134389A (en) * | 2011-05-04 | 2011-07-27 | 刘立文 | Calcium sulfate whisker-modified polyurethane composite material and preparation process thereof |
| CN102212325A (en) * | 2010-04-09 | 2011-10-12 | 航天材料及工艺研究所 | Polyurethane pouring sealant as well as preparation method and pouring process thereof |
| CN106543930A (en) * | 2016-10-28 | 2017-03-29 | 天长市永泰密封材料有限公司 | Aqueous impervious container fluid sealant of a kind of crystal whisker of gypsum toughening flame-proof and preparation method thereof |
| CN112092428A (en) * | 2020-11-09 | 2020-12-18 | 永一橡胶有限公司 | Curing capsule and preparation method thereof |
| CN115181534A (en) * | 2022-08-05 | 2022-10-14 | 环亚正安(北京)建筑材料有限公司 | Multi-component flexible sealing material for caulking and use method thereof |
| CN115960575A (en) * | 2022-08-05 | 2023-04-14 | 环亚正安(北京)建筑材料有限公司 | Sealing material for culvert settlement joint and use method thereof |
-
2005
- 2005-10-19 CN CN 200510047453 patent/CN1955247A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101289574B (en) * | 2008-06-06 | 2010-09-29 | 上海世鹏聚氨酯科技发展有限公司 | Wear resistant elastic material of polyurethane modified by nano-steel slag |
| CN102212325A (en) * | 2010-04-09 | 2011-10-12 | 航天材料及工艺研究所 | Polyurethane pouring sealant as well as preparation method and pouring process thereof |
| CN102134389A (en) * | 2011-05-04 | 2011-07-27 | 刘立文 | Calcium sulfate whisker-modified polyurethane composite material and preparation process thereof |
| CN102134389B (en) * | 2011-05-04 | 2012-05-23 | 刘立文 | Calcium sulfate whisker-modified polyurethane composite material and preparation process thereof |
| CN106543930A (en) * | 2016-10-28 | 2017-03-29 | 天长市永泰密封材料有限公司 | Aqueous impervious container fluid sealant of a kind of crystal whisker of gypsum toughening flame-proof and preparation method thereof |
| CN112092428A (en) * | 2020-11-09 | 2020-12-18 | 永一橡胶有限公司 | Curing capsule and preparation method thereof |
| CN115181534A (en) * | 2022-08-05 | 2022-10-14 | 环亚正安(北京)建筑材料有限公司 | Multi-component flexible sealing material for caulking and use method thereof |
| CN115960575A (en) * | 2022-08-05 | 2023-04-14 | 环亚正安(北京)建筑材料有限公司 | Sealing material for culvert settlement joint and use method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1955247A (en) | Nano modified solventless polyurethane adhesive sealant and its preparation process | |
| CN1047180C (en) | Process for producing rapidly cold-curable polyurethane coating waterproofing material | |
| CN1730594A (en) | Direct-adhesion type polyurethane seal gum | |
| CN1288220C (en) | High strong adhesive and method for preparing same | |
| CN101613587B (en) | Polyurethane sealing glue | |
| CN102304340B (en) | Double-component silane-terminated sealing adhesive and preparation method thereof | |
| CN1865311A (en) | Polymerized thylene carbonate urethane elastomer and its preparation method | |
| CN101580699B (en) | Polyurethane sealant and preparation method thereof | |
| CN1958709A (en) | Cementation type polysulfide sealant | |
| CN1715356A (en) | Novel adhesive composition | |
| CN103897652A (en) | Environment-friendly high-strength polyurethane adhesive sealant and preparation method thereof | |
| CN1252156C (en) | Process for regeneration of rubber from scrap | |
| CN1322084C (en) | Silicane modified polyurethane cementing sealing glue and method for making same | |
| CN1176964C (en) | Preparation and use of elastic high-strength polyurthane prepolymer | |
| CN1890311A (en) | Method of making kaolin containing silicone rubber compositions | |
| CN110437551A (en) | A kind of self-repair type environment-protective rubber material and preparation method thereof | |
| CN104893646A (en) | Preparation method of high-strength water-resistant mildewproof glass cement | |
| CN112592597B (en) | Preparation method of low-temperature displacement-resistant non-cured rubber asphalt | |
| CN104087230A (en) | Silane-modified polyurethane sealing material and preparation method thereof | |
| CN1709832A (en) | Method for preventing stripping of concrete | |
| CN113248837A (en) | Heat-resistant rubber plate rubber compound and preparation method and application thereof | |
| JP2014077094A (en) | Urethane adhesive composition | |
| KR102079057B1 (en) | Recycled adhesive seal with high adhesive force and manufacturing method thereof | |
| CN1114669C (en) | Normal temp. solidified conveying band joint chloroprene rubber adhesive | |
| CN1126232A (en) | Hydroxy polybutadiene type plyurethane anticorrosive adhesive |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |