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CN105647459A - Reaction-bonding-type two-component self-leveling polyurethane seal gum and preparing method thereof - Google Patents

Reaction-bonding-type two-component self-leveling polyurethane seal gum and preparing method thereof Download PDF

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Publication number
CN105647459A
CN105647459A CN201610075576.3A CN201610075576A CN105647459A CN 105647459 A CN105647459 A CN 105647459A CN 201610075576 A CN201610075576 A CN 201610075576A CN 105647459 A CN105647459 A CN 105647459A
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China
Prior art keywords
component
parts
type double
polyurethane sealant
plasticizer
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Pending
Application number
CN201610075576.3A
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Chinese (zh)
Inventor
张中华
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GUANGZHOU DAYU LEAKPROOF TECHNOLOGY DEVELOPMENT Co Ltd
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GUANGZHOU DAYU LEAKPROOF TECHNOLOGY DEVELOPMENT Co Ltd
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Priority to CN201610075576.3A priority Critical patent/CN105647459A/en
Publication of CN105647459A publication Critical patent/CN105647459A/en
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    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J175/00Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
    • C09J175/04Polyurethanes
    • C09J175/08Polyurethanes from polyethers
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40High-molecular-weight compounds
    • C08G18/48Polyethers
    • C08G18/4804Two or more polyethers of different physical or chemical nature
    • C08G18/4812Mixtures of polyetherdiols with polyetherpolyols having at least three hydroxy groups
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/70Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72Polyisocyanates or polyisothiocyanates
    • C08G18/74Polyisocyanates or polyisothiocyanates cyclic
    • C08G18/76Polyisocyanates or polyisothiocyanates cyclic aromatic
    • C08G18/7614Polyisocyanates or polyisothiocyanates cyclic aromatic containing only one aromatic ring
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/70Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72Polyisocyanates or polyisothiocyanates
    • C08G18/74Polyisocyanates or polyisothiocyanates cyclic
    • C08G18/76Polyisocyanates or polyisothiocyanates cyclic aromatic
    • C08G18/7657Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings
    • C08G18/7664Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups
    • C08G18/7671Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups containing only one alkylene bisphenyl group

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

The invention discloses a reaction-bonding-type two-component self-leveling polyurethane seal gum and a preparing method thereof. The seal gum is obtained in the mode that a component A and a component B are mixed to be even in the mass ratio of 1:1-1:5. The component A is prepared from polyether polyol, isocyanate and plasticizer; the component B is prepared from, by mass, polyether polyol, padding, plasticizer, catalyst, reactive assistant, vulcanizing agent, defoaming agent, anti-caving agent and hydrolytic stabilizing agent. The preparing method includes the steps that 1, the polyether polyol and the plasticizer are added into a reaction kettle and mixed to be even, water is removed, the isocyanate is added, the mixture is fully reacted and defoamed, and the component A is obtained; 2, the polyether polyol, the plasticizer, the padding, the anti-caving agent, the vulcanizing agent and the defoaming agent are added into the reaction kettle and mixed to be even, water is removed, the catalyst, the hydrolytic stabilizing agent and the reactive assistant are added, the mixture is fully reacted, and the component B is obtained. The performance of the seal gum is quite excellent.

Description

A kind of reaction bonding type double-component Self-leveling polyurethane sealant and preparation method thereof
Technical field
The present invention relates to a kind of reaction bonding type double-component Self-leveling polyurethane sealant and preparation method thereof.
Background technology
Existing polyurethane sealant is divided into one-component and the big class of many (double; two) component two, it is not so good with the adhesive property of cement basal plane in structural joint, bin stability is packed and ectocine is relatively big, it is slower generally to solidify, also tend to during construction to use silane coupling agent, both just such, it stretches caking property surely, caking property is stretched in immersion surely, cold drawn-thermo-compression bonding also has defective phenomenon.
Easily there is foaming and the phenomenon of leakage when meeting water on moist bonding plane in common many (double; two) component polyurethane fluid sealant; Also occurring obvious hydrolysis phenomena to make depolymerization therein, time one length will lose waterproof action simultaneously; Common Self-leveling fluid sealant has slump phenomenon after the drying.
Summary of the invention
It is an object of the invention to relate to a kind of reaction bonding type double-component Self-leveling polyurethane sealant and preparation method thereof.
The technical solution used in the present invention is:
A kind of reaction bonding type double-component Self-leveling polyurethane sealant, it is to be obtained by after component A and B component 1:1��1:5 mix homogeneously in mass ratio;
Described component A is made up of the raw material of following mass parts: polyether polyol 43��80 parts, isocyanates 17��57 parts, plasticizer 0��3 part.
Described B component is made up of the raw material of following mass parts: polyether polyol 24��54 parts, filler 16��33 parts, plasticizer 17.5��20 parts, catalyst 0.1��1.0 part, reactive assistant 0.05��2 part, vulcanizing agent 5��8 parts, defoamer 1��3 part, anti-slump agent 1��3 part, hydrolysis stabilizer 0.1��0.3 part.
Described polyether polyol is at least one in polyether Glycols, polyether-tribasic alcohol.
Described isocyanates is the mixture of TDI and MDI.
Described plasticizer is at least one in phthalate, chlorinated hydrocarbons, citric acid ester type, epoxy soybean oil.
Described reactive assistant is at least one in alkyl disulfide, alkyl phenol disulfide.
Described filler is at least one in calcium carbonate, Pulvis Talci, light calcium carbonate powder, dicalcium powder, barium sulfate, bentonite, Kaolin, mica powder, attapulgite, meerschaum, silicon powder, silicon dioxide.
Described anti-slump agent is organobentonite.
Described hydrolysis stabilizer is coupling agent.
Described vulcanizing agent is MOCA; Described defoamer is quick lime.
The preparation method of described reaction bonding type double-component Self-leveling polyurethane sealant, including step:
1) polyether polyol, plasticizer are added reactor, mix the part that dewaters, add isocyanates, fully react, de-bubble, obtain component A;
2) polyether polyol, plasticizer, filler, anti-slump agent, vulcanizing agent, defoamer are added reactor, mix the part that dewaters, add catalyst, hydrolysis stabilizer, reactive assistant, fully react, obtain B component.
The invention has the beneficial effects as follows:
The fluid sealant performance of the present invention is very excellent, concrete:
Being poured in by the reaction bonding type double-component Self-leveling polyurethane sealant of the present invention in building structure seam, polyurethane sealant just achieves comprehensively bonding (expire glue) with cement basal plane by chemical reaction, and bonding firmly. The phenomenon that conventional urethane fluid sealant foams in wet condition and leaks does not occur. It stretches caking property surely, caking property is stretched in immersion surely, cold drawn-thermo-compression bonding respectively reaches 50h, 48h, 45h without destruction, and hydrolytic stability improves five times, and dry fluid sealant, without slump, has exceeded standard-required, thus reaching good sealing and waterproof effect.
Detailed description of the invention
A kind of reaction bonding type double-component Self-leveling polyurethane sealant, it is to be obtained by after component A and B component 1:1��1:5 mix homogeneously in mass ratio.
Described component A is made up of the raw material of following mass parts: polyether polyol 43��80 parts, isocyanates 17��57 parts, plasticizer 0��3 part.
Described B component is made up of the raw material of following mass parts: polyether polyol 24��54 parts, filler 16��33 parts, plasticizer 17.5��20 parts, catalyst 0.1��1.0 part, reactive assistant 0.05��2 part, vulcanizing agent 5��8 parts, defoamer 1��3 part, anti-slump agent 1��3 part, hydrolysis stabilizer 0.1��0.3 part.
Described polyether polyol is at least one in polyether Glycols, polyether-tribasic alcohol; Preferably, at least one in N220, N210, N240,330N; It is further preferred that be at least one in N220,330N.
Preferably, described isocyanates is the mixture of TDI and MDI.
Preferably, described plasticizer is at least one in phthalate, chlorinated hydrocarbons, citric acid ester type, epoxy soybean oil; It is further preferred that be DBP, 52#At least one in chlorinated paraffin.
Preferably, described reactive assistant is at least one in alkyl disulfide, alkyl phenol disulfide.
Preferably, described filler is at least one in calcium carbonate, Pulvis Talci, light calcium carbonate powder, dicalcium powder, barium sulfate, bentonite, Kaolin, mica powder, attapulgite, meerschaum, silicon powder, silicon dioxide.
Preferably, described anti-slump agent is organobentonite.
Preferably, described hydrolysis stabilizer is coupling agent; It is further preferred that be at least one in silane coupler, titanate coupling agent, zirconium ester coupling agent, aluminate coupling agent; Further preferred, for silane coupler; Further preferred again, at least one in KH550, KH560, KH570;More a step is preferred again, for KH550.
Preferably, described vulcanizing agent is MOCA; Described defoamer is quick lime;
Preferably, described defoamer is at least one in silicone based defoamer, polyethers defoamer, organic silicon modified by polyether class defoamer, high-carbon alcohol defoaming agent;
The preparation method of described reaction bonding type double-component Self-leveling polyurethane sealant, including step:
1) polyether polyol, plasticizer are added reactor, mix the part that dewaters, add isocyanates, fully react, de-bubble, obtain component A;
2) polyether polyol, plasticizer, filler, anti-slump agent, vulcanizing agent, defoamer are added reactor, mix the part that dewaters, add catalyst, hydrolysis stabilizer, reactive assistant, fully react, obtain B component.
Preferably, described preparation method is:
Formula as described above, polyether polyol, plasticizer are added reactor, draw water a part 2.5h under temperature 110��120 DEG C, vacuum-0.08��-0.09Mpa, is then cooled to 70��80 DEG C and is slowly added dropwise isocyanates and reacts 3h, and de-bubble obtained component A after ten minutes;
Formula as described above, polyether polyol, plasticizer, filler, anti-slump agent, vulcanizing agent, defoamer are added reactor, draw water a part 4h under temperature 110��120 DEG C, vacuum-0.08��-0.09Mpa, then it is cooled to 70��80 DEG C add catalyst, hydrolysis stabilizer, reactive assistant and react 1h, obtains B component.
Below in conjunction with specific embodiment, the present invention is described further (" part " in following example refers to " mass parts "):
Embodiment 1:
Described reaction bonding type double-component Self-leveling polyurethane sealant, component A is made up of the raw material of following mass parts: polyether Glycols (N220) 56 parts; Polyether-tribasic alcohol (330N) 24 parts; MDI10 part; TDI7 part; DBP3 part; B component is made up of the raw material of following mass parts: polyether Glycols (N220) 12 parts; Polyether-tribasic alcohol (330N) 12 parts; Filler Pulvis Talci 32.9 parts; Plasticizer DBP 10 parts; 52# chlorinated paraffin 19 parts; Catalyst 1 part; Reactive assistant alkyl disulfide 2 parts; MOCA8 part; Quick lime 2 parts; Organobentonite 1 part; Silane coupler (KH550) 0.1 part.
Embodiment 2:
Described reaction bonding type double-component Self-leveling polyurethane sealant, component A is made up of the raw material of following mass parts: polyether Glycols (N220) 49 parts; Polyether-tribasic alcohol (330N) 24 parts; MDI16 part; TDI11 part; B component is made up of the raw material of following mass parts: polyether Glycols (N220) 22 parts; Polyether-tribasic alcohol (330N) 22 parts; Filler light calcium carbonate powder 22.8 parts; Plasticizer DBP 10 parts; 52# chlorinated paraffin 13.9 parts; Catalyst 0.1 part; Reactive assistant alkyl phenol disulfide 1 part; MOCA5 part; 1 part of Calx; Organobentonite 2 parts; Silane coupler (KH550) 0.2 part.
Embodiment 3:
Described reaction bonding type double-component Self-leveling polyurethane sealant, component A is made up of the raw material of following mass parts: polyether Glycols (N220) 42 parts; Polyether-tribasic alcohol (330N) 21 parts; MDI22 part; TDI15 part; B component is made up of the raw material of following mass parts: polyether Glycols (N220) 25 parts; Polyether-tribasic alcohol (330N) 25 parts; Filler Pulvis Talci 18.9 parts; Plasticizer DBP 7.9 parts; 52# chlorinated paraffin 10 parts; Catalyst 0.1 part; Each 1 part of reactive assistant alkyl disulfide, alkyl phenol disulfide;MOCA5 part; Quick lime 3 parts; Organobentonite 3 parts; Silane coupler (KH550) 0.1 part.
Embodiment 4:
Described reaction bonding type double-component Self-leveling polyurethane sealant, component A is made up of the raw material of following mass parts: polyether Glycols (N220) 36 parts; Polyether-tribasic alcohol (330N) 17 parts; MDI27 part; TDI20 part; B component is made up of the raw material of following mass parts: polyether Glycols (N220) 26 parts; Polyether-tribasic alcohol (330N) 26 parts; Filler light calcium carbonate powder 19.7 parts; Plasticizer DBP 8.45 parts; 52# chlorinated paraffin 10 parts; Catalyst 1 part; Reactive assistant alkyl phenol disulfide 0.05 part; MOCA5 part; 2.5 parts of Calx; Organobentonite 1 part; Silane coupler (KH550) 0.3 part.
Embodiment 5:
Described reaction bonding type double-component Self-leveling polyurethane sealant, component A is made up of the raw material of following mass parts: polyether Glycols (N220) 29 parts; Polyether-tribasic alcohol (330N) 14 parts; MDI34 part; TDI23 part; B component is made up of the raw material of following mass parts: polyether Glycols (N220) 27 parts; Polyether-tribasic alcohol (330N) 27 parts; Filler light calcium carbonate powder 16.7 parts; Plasticizer DBP 7.5 parts; 52# chlorinated paraffin 10 parts; Catalyst 1 part; Reactive assistant alkyl disulfide 1 part; MOCA5 part; 1.5 parts of Calx; Organobentonite 3 parts; Silane coupler (KH550) 0.3 part.
Corresponding, the present invention also provides for the production method of reaction bonding type double-component Self-leveling polyurethane sealant, including step:
According to the formula that each embodiment is corresponding, polyether polyol, plasticizer are added reactor, draw water a part 2.5h under temperature 110��120 DEG C, vacuum-0.08��-0.09Mpa, is then cooled to 70��80 DEG C and is slowly added dropwise isocyanates and reacts 3h, and de-bubble obtained component A after ten minutes;
Formula as described above, polyether polyol, plasticizer, filler, anti-slump agent, vulcanizing agent, defoamer are added reactor, draw water a part 4h under temperature 110��120 DEG C, vacuum-0.08��-0.09Mpa, then it is cooled to 70��80 DEG C add catalyst, hydrolysis stabilizer, reactive assistant and react 1h, obtains B component.
By the component A that above example prepares, moderate viscosity; Polyurethane sealant is obtained by after component A and B component 1:1��1:5 mix homogeneously in mass ratio.
Being poured in by the reaction bonding type double-component Self-leveling polyurethane sealant of the present invention in building structure seam, polyurethane sealant just achieves comprehensively bonding (expire glue) with cement basal plane by chemical reaction, and bonding firmly. The phenomenon that conventional urethane fluid sealant foams in wet condition and leaks does not occur. It stretches caking property surely, caking property is stretched in immersion surely, cold drawn-thermo-compression bonding respectively reaches 50h, 48h, 45h without destruction, and hydrolytic stability improves five times, and dry fluid sealant, without slump, has exceeded standard-required, thus reaching good sealing and waterproof effect.

Claims (10)

1. a reaction bonding type double-component Self-leveling polyurethane sealant, it is characterised in that: it is to be obtained by after component A and B component 1:1��1:5 mix homogeneously in mass ratio;
Described component A is made up of the raw material of following mass parts: polyether polyol 43��80 parts, isocyanates 17��57 parts, plasticizer 0��3 part;
Described B component is made up of the raw material of following mass parts: polyether polyol 24��54 parts, filler 16��33 parts, plasticizer 17.5��20 parts, catalyst 0.1��1.0 part, reactive assistant 0.05��2 part, vulcanizing agent 5��8 parts, defoamer 1��3 part, anti-slump agent 1��3 part, hydrolysis stabilizer 0.1��0.3 part.
2. a kind of reaction bonding type double-component Self-leveling polyurethane sealant according to claim 1, it is characterised in that: described polyether polyol is at least one in polyether Glycols, polyether-tribasic alcohol.
3. a kind of reaction bonding type double-component Self-leveling polyurethane sealant according to claim 1, it is characterised in that: described isocyanates is the mixture of TDI and MDI.
4. a kind of reaction bonding type double-component Self-leveling polyurethane sealant according to claim 1, it is characterised in that: described plasticizer is at least one in phthalate, chlorinated hydrocarbons, citric acid ester type, epoxy soybean oil.
5. a kind of reaction bonding type double-component Self-leveling polyurethane sealant according to claim 1, it is characterised in that: described reactive assistant is at least one in alkyl disulfide, alkyl phenol disulfide.
6. a kind of reaction bonding type double-component Self-leveling polyurethane sealant according to claim 1, it is characterised in that: described filler is at least one in calcium carbonate, Pulvis Talci, light calcium carbonate powder, dicalcium powder, barium sulfate, bentonite, Kaolin, mica powder, attapulgite, meerschaum, silicon powder, silicon dioxide.
7. a kind of reaction bonding type double-component Self-leveling polyurethane sealant according to claim 1, it is characterised in that: described anti-slump agent is organobentonite.
8. a kind of reaction bonding type double-component Self-leveling polyurethane sealant according to claim 1, it is characterised in that: described hydrolysis stabilizer is coupling agent.
9. a kind of reaction bonding type double-component Self-leveling polyurethane sealant according to claim 1, it is characterised in that: described vulcanizing agent is MOCA; Described defoamer is quick lime.
10. the preparation method of the reaction bonding type double-component Self-leveling polyurethane sealant according to any one of claim 1-9, it is characterised in that: include step:
1) polyether polyol, plasticizer are added reactor, mix the part that dewaters, add isocyanates, fully react, de-bubble, obtain component A;
2) polyether polyol, plasticizer, filler, anti-slump agent, vulcanizing agent, defoamer are added reactor, mix the part that dewaters, add catalyst, hydrolysis stabilizer, reactive assistant, fully react, obtain B component.
CN201610075576.3A 2016-02-03 2016-02-03 Reaction-bonding-type two-component self-leveling polyurethane seal gum and preparing method thereof Pending CN105647459A (en)

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Cited By (7)

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CN107418500A (en) * 2017-08-09 2017-12-01 林开笔 Wet environment non-foaming polyurethane two-component fluid sealant and its production technology
CN108276949A (en) * 2018-01-31 2018-07-13 广州吉必盛科技实业有限公司 Dual-component polyurethane casting glue and preparation method thereof and application method
CN109735287A (en) * 2019-01-14 2019-05-10 福建新华美防水材料有限公司 A kind of production method of polyurethane sealant
CN109943249A (en) * 2019-04-01 2019-06-28 广州秦耀照明电器有限公司 A kind of flexible heat insulating compound film and its preparation process applied to collector surface
CN111139019A (en) * 2020-01-10 2020-05-12 广东汉石新材料科技有限公司 Polyurethane gap filler material and preparation method thereof
CN112552860A (en) * 2020-11-25 2021-03-26 开来湿克威防水科技股份有限公司 Transparent high-voltage cable sealant and preparation method thereof
CN114292580A (en) * 2021-12-22 2022-04-08 广东高捷体育产业有限公司 Self-flowing flat ground material and preparation method thereof

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107418500A (en) * 2017-08-09 2017-12-01 林开笔 Wet environment non-foaming polyurethane two-component fluid sealant and its production technology
CN108276949A (en) * 2018-01-31 2018-07-13 广州吉必盛科技实业有限公司 Dual-component polyurethane casting glue and preparation method thereof and application method
CN109735287A (en) * 2019-01-14 2019-05-10 福建新华美防水材料有限公司 A kind of production method of polyurethane sealant
CN109943249A (en) * 2019-04-01 2019-06-28 广州秦耀照明电器有限公司 A kind of flexible heat insulating compound film and its preparation process applied to collector surface
CN111139019A (en) * 2020-01-10 2020-05-12 广东汉石新材料科技有限公司 Polyurethane gap filler material and preparation method thereof
CN112552860A (en) * 2020-11-25 2021-03-26 开来湿克威防水科技股份有限公司 Transparent high-voltage cable sealant and preparation method thereof
CN114292580A (en) * 2021-12-22 2022-04-08 广东高捷体育产业有限公司 Self-flowing flat ground material and preparation method thereof

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Application publication date: 20160608